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Ascher S, Gordon J, Bongiovanni I, Watson I, Hermannsson K, Gillespie S, Sarangi S, Biakhmetov B, Bhargava PC, Bhaskar T, Krishna BB, Pandey A, You S. Trigeneration based on the pyrolysis of rural waste in India: Environmental impact, economic feasibility and business model innovation. Sci Total Environ 2024; 921:170718. [PMID: 38331270 DOI: 10.1016/j.scitotenv.2024.170718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 01/10/2024] [Accepted: 02/03/2024] [Indexed: 02/10/2024]
Abstract
Pyrolysis-based waste-to-bioenergy development has the potential to resolve some of the major challenges facing rural communities in India such as poor electrification, household air pollution, and farmland degradation and contamination. Existing understanding and analysis of the economic feasibility and environmental impact of bioenergy deployment in rural areas is limited by parameter uncertainties, and relevant business model innovation following economic evaluation is even scarcer. This paper uses findings from a new field survey of 1200 rural households to estimate the economic feasibility and environmental impact of a pyrolysis-based bioenergy trigeneration development that was designed to tackle these challenges. Based on the survey results, probability distributions were constructed and used to supply input parameters for cost-benefit analysis and life cycle assessment. Monte Carlo simulation was applied to characterise the uncertainties of economic feasibility and environmental impact accounting. It was shown that the global warming potential of the development was 350 kg of CO2-eq per capita per annum. Also, the survey identified a significant mismatch between feedstock prices considered in the literature and prices asked for by the surveyed villagers. The results of the cost-benefit analysis and life cycle assessment were then applied to propose two novel business models inspired by the Business Model Canvas, which had the potential to achieve up to 90 % economic profitability and result in a benefit-cost ratio of 1.35-1.75. This is the first study achieving combined environmental and economic analysis and business model innovation for rural bioenergy production in developing countries.
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Affiliation(s)
- Simon Ascher
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - Jillian Gordon
- Adam Smith Business School, University of Glasgow, G12 8QQ, UK.
| | - Ivano Bongiovanni
- Business School, University of Queensland, Brisbane, QLD, Australia.
| | - Ian Watson
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - Kristinn Hermannsson
- Robert Owen Centre for Educational Change, School of Education, University of Glasgow, Glasgow, UK
| | - Steven Gillespie
- School of Social and Environmental Sustainability, University of Glasgow, Dumfries DG1 4ZL, UK
| | | | | | - Preeti Chaturvedi Bhargava
- Aquatic Toxicology Lab, Environmental Toxicology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, M.G. Marg, Lucknow 226001, India
| | - Thallada Bhaskar
- Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum, Dehradun 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nagar, Ghaziabad 210002, India
| | - Bhavya B Krishna
- Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum, Dehradun 248005, Uttarakhand, India
| | - Ashok Pandey
- Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun 248 007, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow 226001, India; Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, South Korea
| | - Siming You
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK.
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Yin Y, Zhao J, Wang P, You S, Zhou Y, Wong JWC, Deng H, Duan G, Zhu Y. Reductive soil disinfestation and Fe amendment improve soil microbial composition and Fritillaria production. Appl Microbiol Biotechnol 2023; 107:6703-6716. [PMID: 37676290 DOI: 10.1007/s00253-023-12766-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/04/2023] [Accepted: 08/26/2023] [Indexed: 09/08/2023]
Abstract
The continuous obstacles of cropping cause severe economic loss, which seriously threaten agricultural sustainable development. In addition, managing excess waste, such as potato peel and mineral waste residues, is a vital burden for industry and agriculture. Therefore, we explored the feasibility of reductive soil disinfestation (RSD) with potato peel and amendment with iron mineral waste residues for the production of Fritillaria thunbergii, which is vulnerable to continuous obstacles. In this study, the influences of iron mineral, RSD with different organic maters, as well as the combined effects of iron mineral and RSD on Fritillaria rhizosphere soil physicochemical properties, microbial communities, and Fritillaria production were investigated. The results revealed that the RSD treatments with potato peel significantly reduced the soil salinity and increased the soil pH, microbial activity, organic matter, and the contents of K and Ca. RSD with potato peel also significantly thrived of the beneficial microbes (Bacillus, Azotobacter, Microvirga, and Chaetomium), and down-regulated potential plant pathogens. RSD with potato peel significantly promoted F. thunbergii yield and quality. Moreover, the combined effects of RSD and iron mineral amendment further enhanced soil health, improved microbial community composition, and increased the yield and peimisine content of F. thunbergii by 24.2% and 49.3%, respectively. Overall, our results demonstrated that RSD with potato peel and amendment with iron mineral waste residues can efficiently improve soil fertility, modify the microbial community, and benefit for both the sustainable production of F. thunbergii and the management of waste. KEY POINTS: • RSD increases soil pH, organic matter, microbial activity, and mineral content • RSD with potato peel enriches beneficial microbes and decreases plant pathogens • PP + Fe treatment increases Fritillaria yield by 24.2% and peimisine content by 49.3.
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Affiliation(s)
- Yue Yin
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Zhao
- School of Geography, Nanjing Normal University, Nanjing, 210095, China
| | - Pan Wang
- Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Pan'an, 322300, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Yaoyu Zhou
- College of the Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Jonathan W C Wong
- Department of Biology, Sino-Forest Applied Research Centre for Pearl River Delta Environment, Hong Kong Baptist University, Hong Kong, China
| | - Huimin Deng
- Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Pan'an, 322300, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yongguan Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
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Bhaskar T, Venkata Mohan S, You S, Kim SH, Porto de Souza Vandenberghe L. Biomass to green hydrogen (BGH2-2022). Bioresour Technol 2023; 376:128924. [PMID: 36948427 DOI: 10.1016/j.biortech.2023.128924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
| | - S Venkata Mohan
- CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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Abstract
In recent years, the digital transformation of bioprocesses, which focuses on interconnectivity, online monitoring, process automation, artificial intelligence (AI) and machine learning (ML), and real-time data acquisition, has gained considerable attention. AI can systematically analyze and forecast high-dimensional data obtained from the operating dynamics of bioprocess, allowing for precise control and synchronization of the process to improve performance and efficiency. Data-driven bioprocessing is a promising technology for tackling emerging challenges in bioprocesses, such as resource availability, parameter dimensionality, nonlinearity, risk mitigation, and complex metabolisms. This special issue entitled "Machine Learning for Smart Bioprocesses (MLSB-2022)" was conceptualized to incorporate some of the recent advances in applications of emerging tools such as ML and AI in bioprocesses. This VSI: MLSB-2022 contains 23 manuscripts, and summarizes the major findings that can serve as a valuable resource for researchers to learn major advances in applications of ML and AI in bioprocesses.
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Affiliation(s)
- Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA; Department of Civil and Environmental Engineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA.
| | - Ayon Tarafdar
- Livestock Production & Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India
| | - Siming You
- James Watt School of Engineering, University of Glasgow, G12 8QQ Glasgow, UK
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Cao J, Duan G, Lin A, Zhou Y, You S, Wong JWC, Yang G. Metagenomic insights into the inhibitory mechanisms of Cu on fermentative hydrogen production. Bioresour Technol 2023; 380:129080. [PMID: 37094620 DOI: 10.1016/j.biortech.2023.129080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
Cu is widely present in the feedstocks of dark fermentation, which can inhibit H2 production efficiency of the process. However, current understanding on the inhibitory mechanisms of Cu, especially the microbiological mechanism, is still lacking. This study investigated the inhibitory mechanisms of Cu2+ on fermentative hydrogen production by metagenomics sequencing. Results showed that the exposure to Cu2+ reduced the abundances of high-yielding hydrogen-producing genera (e.g. Clostridium sensu stricto), and remarkably down-regulated the genes involved in substrate membrane transport (e.g., gtsA, gtsB and gtsC), glycolysis (e.g. PK, ppgK and pgi-pmi), and hydrogen formation (e.g. pflA, fdoG, por and E1.12.7.2), leading to significant inhibition on the process performances. The H2 yield was reduced from 1.49 mol H2/mol-glucose to 0.59 and 0.05 mol H2/mol-glucose upon exposure to 500 and 1000 mg/L of Cu2+, respectively. High concentrations of Cu2+ also reduced the rate of H2 production and prolonged the H2-producing lag phase.
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Affiliation(s)
- Jinman Cao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G128QQ, UK
| | - Jonathan W C Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, China
| | - Guang Yang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Aziz T, Farid A, Haq F, Kiran M, Ullah N, Faisal S, Ali A, Khan FU, You S, Bokhari A, Mubashir M, Chuah LF, Show PL. Role of silica-based porous cellulose nanocrystals in improving water absorption and mechanical properties. Environ Res 2023; 222:115253. [PMID: 36702191 DOI: 10.1016/j.envres.2023.115253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/15/2022] [Accepted: 01/07/2023] [Indexed: 05/27/2023]
Abstract
Epoxy resins are important thermosetting polymers. They are widely used in many applications i.e., adhesives, plastics, coatings and sealers. Epoxy molding compounds have attained dominance among common materials due to their excellent mechanical properties. The sol-gel simple method was applied to distinguish the impact on the colloidal time. The properties were obtained with silica-based fillers to enable their mechanical and thermal improvement. The work which we have done here on epoxy-based nanocomposites was successfully modified. The purpose of this research was to look into the effects of cellulose nanocrystals (CNCs) on various properties and applications. CNCs have recently attracted a lot of interest in a variety of industries due to their high aspect ratio, and low density which makes them perfect candidates. Adding different amounts of silica-based nanocomposites to the epoxy system. Analyzed with different techniques such as Fourier-transformed infrared spectroscope (FTIR), thermogravimetric analysis (TGA) and scanning electronic microscopic (SEM) to investigate the morphological properties of modified composites. The various %-age of silica composite was prepared in the epoxy system. The 20% of silica was shown greater enhancement and improvement. They show a better result than D-400 epoxy. Increasing the silica, the transparency of the films decreased, because clustering appears. This shows that the broad use of CNCs in environmental engineering applications is possible, particularly for surface modification, which was evaluated for qualities such as absorption and chemical resistant behavior.
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Affiliation(s)
- Tariq Aziz
- Westlake University. School of Engineering. Hangzhou. Zhejiang Province, 310024, China
| | - Arshad Farid
- Gomal Center of Biochemistry and Biotechnology, Gomal University, D. I. Khan, 29050, Pakistan.
| | - Fazal Haq
- Department of Chemistry. Gomal University, D. I. Khan, 29050, Pakistan
| | - Mehwish Kiran
- Department of Horticulture. Gomal University, D. I. Khan, 29050, Pakistan
| | - Naveed Ullah
- Department of Chemistry. Gomal University, D. I. Khan, 29050, Pakistan
| | - Shah Faisal
- Department of Chemistry. University of Science and Technology Bannu, 28000, Pakistan
| | - Amjad Ali
- Institute of Polymer Material. School of Material Science & Engineering, Jiangsu University, China
| | - Farman Ullah Khan
- Department of Chemistry. University of Science and Technology Bannu, 28000, Pakistan
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Awais Bokhari
- Department of Chemical Engineering, COMSATS University Islamabad (CUI), Lahore Campus, Lahore, Punjab, 54000, Pakistan; Sustainable Process Integration Laboratory, SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology, VUT Brno, Technická 2896/2, 616 00, Brno, Czech Republic
| | - Muhammad Mubashir
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia
| | - Lai Fatt Chuah
- Faculty of Maritime Studies, Universiti Malaysia Terengganu, Terengganu, Malaysia.
| | - Pau Loke Show
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, China; Department of Chemical Engineering, Khalifa University, Shakhbout Bin Sultan St Zone 1, Abu Dhabi, United Arab Emirates; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India; Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Semenyih, Selangor, Malaysia.
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Li Y, Gupta R, Zhang Q, You S. Review of biochar production via crop residue pyrolysis: Development and perspectives. Bioresour Technol 2023; 369:128423. [PMID: 36462767 DOI: 10.1016/j.biortech.2022.128423] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Worldwide surge in crop residue generation has necessitated developing strategies for their sustainable disposal. Pyrolysis has been widely adopted to convert crop residue into biochar with bio-oil and gas being two co-products. The review adopts a whole system philosophy and systematically summarises up-to-date knowledge of crop residue pyrolysis processes, influential factors, and biochar applications. Essential process design tools for biochar production e.g., cost-benefit analysis, life cycle assessment, and machine learning methods are also reviewed, which has often been overlooked in prior reviews. Important aspects include (a) correlating techno-economics of biochar production with crop residue compositions, (b) process operating conditions and management strategies, (c) biochar applications including soil amendment, fuel displacement, catalytic usage, etc., (d) data-driven modelling techniques, (e) properties of biochar, and (f) climate change mitigation. Overall, the review will support the development of application-oriented process pipelines for crop residue-based biochar.
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Affiliation(s)
- Yize Li
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK; Nanoengineered Systems Laboratory, UCL Mechanical Engineering, University College London, London WC1E 7JE, UK; Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London W1W 7TY, UK
| | - Qiaozhi Zhang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
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Gupta R, Zhang L, Hou J, Zhang Z, Liu H, You S, Sik Ok Y, Li W. Review of explainable machine learning for anaerobic digestion. Bioresour Technol 2023; 369:128468. [PMID: 36503098 DOI: 10.1016/j.biortech.2022.128468] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Anaerobic digestion (AD) is a promising technology for recovering value-added resources from organic waste, thus achieving sustainable waste management. The performance of AD is dictated by a variety of factors including system design and operating conditions. This necessitates developing suitable modelling and optimization tools to quantify its off-design performance, where the application of machine learning (ML) and soft computing approaches have received increasing attention. Here, we succinctly reviewed the latest progress in black-box ML approaches for AD modelling with a thrust on global and local model interpretability metrics (e.g., Shapley values, partial dependence analysis, permutation feature importance). Categorical applications of the ML and soft computing approaches such as what-if scenario analysis, fault detection in AD systems, long-term operation prediction, and integration of ML with life cycle assessment are discussed. Finally, the research gaps and scopes for future work are summarized.
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Affiliation(s)
- Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK; Nanoengineered Systems Laboratory, UCL Mechanical Engineering, University College London, London WC1E 7JE, UK; Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London W1W 7TS, UK
| | - Le Zhang
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jiayi Hou
- Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhikai Zhang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, Hebei, China
| | - Hongtao Liu
- Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, South Korea
| | - Wangliang Li
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
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9
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Hajabdollahi Ouderji Z, Gupta R, Mckeown A, Yu Z, Smith C, Sloan W, You S. Integration of anaerobic digestion with heat Pump: Machine learning-based technical and environmental assessment. Bioresour Technol 2023; 369:128485. [PMID: 36521822 DOI: 10.1016/j.biortech.2022.128485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Anaerobic digestion (AD)-based biogas production mitigates the environmental footprint of organic wastes (e.g., food waste and sewage sludge) and facilitates a circular economy. The work proposed an integrated system where the thermal energy demand of an AD is supplied using an air source heat pump (ASHP). The proposed system is compared to a baseline system, where the thermal energy is supplied by a natural gas-based heating system. Several machine learning models are developed for predicting biogas production, among which the Gaussian Process Regression (GPR) showed a superior performance (R2 = 0.84 and RMSE = 0.0755 L gVS-1 day-1). The GPR model further informed a thermodynamic model of the ASHP, which revealed the maximum biogas yield to be approximately 0.585 L.gVS-1.day-1 at an optimal temperature of 55 °C (thermophilic). Subsequently, life cycle assessment showed that ASHP-based AD heating systems achieved 28.1 % (thermophilic) and 36.8 % (mesophilic) carbon abatement than the baseline system.
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Affiliation(s)
| | - Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK; Nanoengineered Systems Laboratory, UCL Mechanical Engineering, University College London, London WC1E 7JE, UK; Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London W1W 7TS, UK
| | - Andrew Mckeown
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Zhibin Yu
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Cindy Smith
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - William Sloan
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
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10
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Ascher S, Wang X, Watson I, Sloan W, You S. Interpretable machine learning to model biomass and waste gasification. Bioresour Technol 2022; 364:128062. [PMID: 36202285 DOI: 10.1016/j.biortech.2022.128062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Machine learning has been regarded as a promising method to better model thermochemical processes such as gasification. However, their black box nature can limit how much one can trust and learn from the developed models. Here seven different machine learning methods have been adopted to model the gasification of biomass and waste across a wide range of operating conditions. Gradient boosting regression has been found to outperform the other model types with a coefficient of determination (R2) of 0.90 when averaged across ten key gasification outputs. Global and local model interpretability methods have been used to illuminate the developed black box models. The studied models were most strongly influenced by the feedstock's particle size and the type of gasifying agent employed. By combining global and local interpretability methods, the understanding of black box models has been improved. This allows policy makers and investors to make more educated decisions about gasification process design.
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Affiliation(s)
- Simon Ascher
- School of Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Xiaonan Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ian Watson
- School of Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - William Sloan
- School of Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Siming You
- School of Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom.
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11
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Dong HF, Huang X, You S, Li XH. [Research advances on burn blister fluid]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:994-998. [PMID: 36299215 DOI: 10.3760/cma.j.cn501120-20211109-00380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Burns often cause the damaged tissue to produce a large amount of exudate and the formation of blisters on the wound. The burn blister fluid contains a large number of molecules related to wound healing, which can reflect the state of local tissue microenvironment of the burn wound. Analyzing relevant information such as cellular components, signal mediators, and protein molecules in burn blister fluid is helpful to understand the local reaction and tissue microenvironment of burn wounds, and then help clinical burn treatment. In this article, by understanding the production mechanism of burn blister fluid, discussing its role in wound evaluation, and integrating the research progress of burn blister fluid in proteomics, metabolomics, cellular components, and pharmacokinetics, we propose our thoughts and prospects on the research of burn blister fluid, in order to provide assistance for clinical evaluation and treatment of burn wounds, and also provide idea for the follow-up study of burn blister fluid.
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Affiliation(s)
- H F Dong
- Department of Burn Plastic Surgery, General Hospital of Western Theater Command, Chengdu 610083, China
| | - X Huang
- Department of Burn Plastic Surgery, General Hospital of Western Theater Command, Chengdu 610083, China
| | - S You
- Department of Burn Plastic Surgery, General Hospital of Western Theater Command, Chengdu 610083, China
| | - X H Li
- Department of Burn Plastic Surgery, General Hospital of Western Theater Command, Chengdu 610083, China
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12
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Yao Z, Zhao T, Su W, You S, Wang CH. Towards understanding respiratory particle transport and deposition in the human respiratory system: Effects of physiological conditions and particle properties. J Hazard Mater 2022; 439:129669. [PMID: 35908402 PMCID: PMC9306224 DOI: 10.1016/j.jhazmat.2022.129669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Fly ash is a common solid residue of incineration plants and poses a great environmental concern because of its toxicity upon inhalation exposure. The inhalation health impacts of fly ash is closely related to its transport and deposition in the human respiratory system which warrants significant research for health guideline setting and inhalation exposure protection. In this study, a series of fly ash transport and deposition experiments have been carried out in a bifurcation airway model by optical aerosol sampling analysis. Three types of fly ash samples of different morphologies were tested and their respiratory deposition and transport processes were compared. The deposition efficiencies were calculated and relevant transport dynamics mechanisms were discussed. The influences of physiological conditions such as breathing rate, duration, and fly ash physical properties (size, morphology, and specific surface area) were investigated. The deposition characteristics of respiratory particles containing SARS-CoV-2 has also been analyzed, which could further provide some guidance on COVID-19 prevention. The results could potentially serve as a basis for setting health guidelines and recommending personal respiratory protective equipment for fly ash handlers and people who are in the high exposure risk environment for COVID-19 transmission.
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Affiliation(s)
- Zhiyi Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Tianyang Zhao
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower, #15-02, 138602, Singapore
| | - Weiling Su
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Siming You
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower, #15-02, 138602, Singapore; James Watt School of Engineering, University of Glasgow, G12 8QQ, Glasgow, United Kingdom
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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13
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Cao J, Xu C, Zhou R, Duan G, Lin A, Yang X, You S, Zhou Y, Yang G. Potato peel waste for fermentative biohydrogen production using different pretreated culture. Bioresour Technol 2022; 362:127866. [PMID: 36049714 DOI: 10.1016/j.biortech.2022.127866] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
How to manage potato peel waste sustainably has been an issue faced by the potato industry. This work explored the feasibility of potato peel waste for biohydrogen production via dark fermentation, and investigated the effects of various inoculum enrichment methods (acid, aeration, heat-shock and base) on the process efficiency. It was observed that the hydrogen production showed a great variation when using various inoculum enrichment methods, and the aeration enriched inoculum obtained the maximum hydrogen yield of 71.0 mL/g-VSadded and VS removal of 28.9 %. Different enriched cultures also exhibited huge variations in the bacterial community structure and metabolic pathway. The highest abundance of Clostridium sensu stricto fundamentally contributed to the highest process efficiency for the fermenter inoculated with aeration treated culture. This work puts forward a promising strategy for recycling potato peel waste, and fills a gap in the optimal inoculum preparation method for biohydrogen fermentation of potato peel waste.
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Affiliation(s)
- Jinman Cao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chonglin Xu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Rui Zhou
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guilan Duan
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiao Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow G12 8QQ, UK
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Guang Yang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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14
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He M, Cao Y, Xu Z, You S, Ruan R, Gao B, Wong KH, Tsang DCW. Process water recirculation for catalytic hydrothermal carbonization of anaerobic digestate: Water-Energy-Nutrient Nexus. Bioresour Technol 2022; 361:127694. [PMID: 35905882 DOI: 10.1016/j.biortech.2022.127694] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
The process water (PW) from acid-catalyzed hydrothermal carbonization (HTC) is still an environmental burden due to the enriched organics, nutrients, and salts. This study proposed a novel strategy to valorize food waste digestate into multifunctional hydrochar by recirculating the PW in the HCl-catalyzed HTC process. The produced multifunctional hydrochar could be utilized as a high-quality solid fuel with HHV of 27.9 MJ kg-1 (hydrochar without PW recirculation) and a slow-release fertilizer by converting the complex Ca and P compounds from the food waste digestate into a Ca-P deposit (hydroxyapatite) with more than a 93 % P recovery rate (hydrochar with PW recirculation). Adding fresh HCl in the HTC PW recirculation system only displayed a marginal catalytic impact on the hydrochar properties after two cycles of recirculation. This study demonstrated the importance of inherent Ca in the feedstocks and the dual role of HCl in the HTC with PW recirculation.
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Affiliation(s)
- Mingjing He
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yang Cao
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zibo Xu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Roger Ruan
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville FL 32611, USA
| | - Ka-Hing Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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15
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Igalavithana AD, Yuan X, Attanayake CP, Wang S, You S, Tsang DCW, Nzihou A, Ok YS. Sustainable management of plastic wastes in COVID-19 pandemic: The biochar solution. Environ Res 2022; 212:113495. [PMID: 35660402 PMCID: PMC9155208 DOI: 10.1016/j.envres.2022.113495] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/08/2022] [Accepted: 05/14/2022] [Indexed: 05/21/2023]
Abstract
To prevent the COVID-19 transmission, personal protective equipment (PPE) and packaging materials have been extensively used but often managed inappropriately, generating huge amount of plastic waste. In this review, we comprehensively discussed the plastic products utilized and the types and amounts of plastic waste generated since the outbreak of COVID-19, and reviewed the potential treatments for these plastic wastes. Upcycling of plastic waste into biochar was addressed from the perspectives of both environmental protection and practical applications, which can be verified as promising materials for environmental protections and energy storages. Moreover, novel upcycling of plastic waste into biochar is beneficial to mitigate the ubiquitous plastic pollution, avoiding harmful impacts on human and ecosystem through direct and indirect micro-/nano-plastic transmission routes, and achieving the sustainable plastic waste management for value-added products, simultaneously. This suggests that the plastic waste could be treated as a valuable resource in an advanced and green manner.
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Affiliation(s)
- Avanthi D Igalavithana
- Department of Soil Science, Faculty of Agriculture, University of Peradeniya, 20400, Sri Lanka; Korea Biochar Research Centre, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, South Korea
| | - Xiangzhou Yuan
- Korea Biochar Research Centre, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, South Korea; R&D Centre, Sun Brand Industrial Inc., Jeollanam-do, 57248, South Korea
| | - Chammi P Attanayake
- Department of Soil Science, Faculty of Agriculture, University of Peradeniya, 20400, Sri Lanka
| | - Shujun Wang
- Korea Biochar Research Centre, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, South Korea; College of Water Conservancy, Shenyang Agricultural University, Shenyang, China
| | - Siming You
- Division of Systems, Power and Energy, James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Ange Nzihou
- Université de Toulouse, Mines Albi, UMR CNRS 5302, Centre RAPSODEE, Campus Jarlard, F-81013, Albi Cedex 09, France; Princeton University, School of Engineering and Applied Science, Princeton, NJ 08544, USA; Princeton University, Andlinger Center for Energy and the Environment, Princeton, NJ 08544, USA
| | - Yong Sik Ok
- Korea Biochar Research Centre, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, South Korea.
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16
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Zhu X, Labianca C, He M, Luo Z, Wu C, You S, Tsang DCW. Life-cycle assessment of pyrolysis processes for sustainable production of biochar from agro-residues. Bioresour Technol 2022; 360:127601. [PMID: 35835419 DOI: 10.1016/j.biortech.2022.127601] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Net carbon management of agro-residues has been an important pathway for reducing the environmental burdens of agricultural production. Converting agro-residues into biochar through pyrolysis is a prominent management strategy for achieving carbon neutrality in a circular economy, meeting both environmental and social concerns. Based on the latest studies, this study critically analyzes the life cycle assessment (LCA) of biochar production from different agro-residues and compares typical technologies for biochar production. Although a direct comparison of results is not always feasible due to different functional units and system boundaries, the net carbon sequestration potential of biochar technology is remarkably promising. By pyrolyzing agro-residues, biochar can be effectively produced and customized as: (i) alternative energy source, (ii) soil amendment, and (iii) activated carbon substitution. The combination of life cycle assessment and circular economy modelling is encouraged to achieve greener and sustainable biochar production.
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Affiliation(s)
- Xiefei Zhu
- Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Claudia Labianca
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Mingjing He
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zejun Luo
- Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Chunfei Wu
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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17
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Li Y, Gupta R, You S. Machine learning assisted prediction of biochar yield and composition via pyrolysis of biomass. Bioresour Technol 2022; 359:127511. [PMID: 35752259 DOI: 10.1016/j.biortech.2022.127511] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Biochar production via pyrolysis of various organic waste has potential to reduce dependence on conventional energy sources and mitigate global warming potential. Existing models for predicting biochar yield and compositions are computationally-demanding, complex, and have low accuracy for extrapolative scenarios. Here, two data-driven machine learning models based on Multi-Layer Perceptron Neural Network and Artificial Neuro-Fuzzy Inference System are developed. The data-driven models predict biochar yield and compositions for a variety of input feedstock compositions and pyrolysis process conditions. Feature importance assessment of the input dataset revealed their competitive significance for predicting biochar yield and compositions. Overall, the predictive accuracy of the models was up to 12.7% better than the Random Forest and eXtreme Gradient Boosting machine learning algorithms reported in the literature. The models developed are valuable for environmental footprint assessment of biochar production and rapid system optimization.
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Affiliation(s)
- Yize Li
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
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18
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Lui J, Sloan W, Paul MC, Flynn D, You S. Life cycle assessment of waste-to-hydrogen systems for fuel cell electric buses in Glasgow, Scotland. Bioresour Technol 2022; 359:127464. [PMID: 35700893 DOI: 10.1016/j.biortech.2022.127464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Waste-to-hydrogen (WtH) technologies are proposed as a dual-purpose method for simultaneous non-fossil-fuel based hydrogen production and sustainable waste management. This work applied the life cycle assessment approach to evaluate the carbon saving potential of two main WtH technologies (gasification and fermentation) in comparison to the conventional hydrogen production method of steam methane reforming (SMR) powering fuel cell electric buses in Glasgow. It was shown that WtH technologies could reduce CO2-eq emissions per kg H2 by 50-69% as compared to SMR. Gasification treating municipal solid waste and waste wood had global warming potentials of 4.99 and 4.11 kg CO2-eq/kg H2 respectively, which were lower than dark fermentation treating wet waste at 6.6 kg CO2-eq/kg H2 and combined dark and photo fermentation at 6.4 kg CO2-eq/kg H2. The distance emissions of WtH-based fuel cell electric bus scenarios were 0.33-0.44 kg CO2-eq/km as compared to 0.89 kg CO2-eq/km for the SMR-based scenario.
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Affiliation(s)
- Jade Lui
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - William Sloan
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - Manosh C Paul
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - David Flynn
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, G12 8QQ, UK.
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19
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Gupta R, McRoberts R, Yu Z, Smith C, Sloan W, You S. Life cycle assessment of biodiesel production from rapeseed oil: Influence of process parameters and scale. Bioresour Technol 2022; 360:127532. [PMID: 35772716 DOI: 10.1016/j.biortech.2022.127532] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Biodiesel has the potential to mitigate the fossil fuel-related carbon emission and energy insecurity challenges. There are limited studies examining the impacts of biodiesel production scales on the environmental impacts, while such information will be valuable for guiding practical system design. This work applied the approach of life cycle assessment to evaluate the environmental impacts of biodiesel production from rapeseed oil which accounts for 80% of the European biofuel market. It was shown that the centralized large-scale and localized small-scale biodiesel production schemes have annual global warming potential (GWP) of 2.63 and 2.88 tCO2-eq/t biodiesel, where the rapeseed agriculture stage caused more than 65% carbon emissions. Sensitivity analysis revealed a high dependence of GWP on rapeseed yields, glycerol re-utilization strategy, and nitrogen nutrient in fertilizer. An alternative scenario was proposed for the large- and small-scale systems that could reduce carbon emissions by 14.1% and 33.6%.
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Affiliation(s)
- Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Ruairidh McRoberts
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Zhibin Yu
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Cindy Smith
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - William Sloan
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
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20
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Affiliation(s)
- Leilei Dai
- University of Minnesota, Saint Paul, MN 55108, USA
| | - Roger Ruan
- University of Minnesota, Saint Paul, MN 55108, USA
| | | | - Hanwu Lei
- Washington State University, Richland, WA 99354, USA
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21
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Affiliation(s)
- Peng Jiang
- Department
of Industrial Engineering and Management, Business School, Sichuan University, Chengdu 610064, China
| | - Christian Sonne
- Department
of Ecoscience, Arctic Research Centre, Aarhus
University, Frederiksborgvej
399, DK-4000 Roskilde, Denmark
| | - Siming You
- James
Watt School of Engineering, University of
Glasgow, University Avenue, Glasgow G12 8QQ, U.K.
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22
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You S, Sonne C, Ruan R, Jiang P. Minimize food loss and waste to prevent crises. Science 2022; 376:1390. [PMID: 35737789 DOI: 10.1126/science.add2008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
| | | | - Roger Ruan
- University of Minnesota, St. Paul, MN 55455, USA
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23
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Fang Y, Wang S, Yang Q, You S, Xing X. [ Chaihu Guizhi Decoction plus or minus formula combined with capecitabine inhibits IL-6/STAT3 signaling to suppress triple-negative breast cancer xenografts in nude mice]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:905-912. [PMID: 35790442 DOI: 10.12122/j.issn.1673-4254.2022.06.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of Chaihu Guizhi Decoction (CHGZD) combined with capecitabine on growth and apoptosis of subcutaneous triple-negative breast cancer xenografts in nude mice and explore the possible mechanism. METHODS Nude mouse models bearing subcutaneous triple-negative breast cancer xenografts were randomized into 6 groups (n=10) for treatment with distilled water (model group), low (10.62 g/kg), medium (21.23 g/kg) and high (42.46 g/kg) doses of CHGZD, capecitabine (0.2 mg/kg), or the combination of CHGZD (42.46 g/kg) and capecitabine (0.2 mg/k) once daily for 21 consecutive days. The general condition of mice was observed, and after 21-day treatments, the tumors were dissected for measurement of tumor volume and weight and histopathological examination with HE staining. Serum IL-6 levels of the mice were determined with enzyme-linked immunosorbent assay (ELISA), and the expression levels of IL-6, STAT3, p-STAT3, Bax, Bcl-2 and cyclin D1 in the tumor tissues were detected using real-time PCR and Western blotting. RESULTS Compared with those in the model group, the tumor-bearing mice receiving treatments with CHGZD showed significantly increased food intake with good general condition, sensitive responses, increased body weight, and lower tumor mass (P < 0.01). Compared with capecitabine treatment alone, treatment with CHGZD alone at the medium and high doses and the combined treatment all resulted in significantly higher tumor inhibition rates (P < 0.01), induced obvious tumor tissue degeneration and reduced the tumor cell density. Treatments with CHGZD, both alone and in combination with capecitabine, significantly decreased serum IL-6 level, lowered the mRNA expression levels of IL-6 and STAT3, the protein expressions of IL-6, STAT3 and P-STAT3 (P < 0.05), and the mRNA and protein expressions of Bcl-2 and cyclin D1 (P < 0.05), and increased the mRNA and protein expressions of Bax in the tumor tissues (P < 0.05). CONCLUSION CHGZD combined with capecitabine can significantly inhibit tumor growth in nude mice bearing triple-negative breast cancer xenografts, the mechanism of which may involve the inhibition of IL-6/STAT3 signaling pathway and regulation of Bax, Bcl-2 and cyclin D1 expressions to suppress tumor cell proliferation and differentiation and induce cell apoptosis.
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Affiliation(s)
- Y Fang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
| | - S Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Q Yang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
| | - S You
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
| | - X Xing
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
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24
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Gaur VK, Gautam K, Sharma P, Gupta S, Pandey A, You S, Varjani S. Carbon-based catalyst for environmental bioremediation and sustainability: Updates and perspectives on techno-economics and life cycle assessment. Environ Res 2022; 209:112793. [PMID: 35090873 DOI: 10.1016/j.envres.2022.112793] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/15/2022] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Global rise in the generation of waste has caused an enormous environmental concern and waste management problem. The untreated carbon rich waste serves as a breeding ground for pathogens and thus strategies for production of carbon rich biochar from waste by employing different thermochemical routes namely hydrothermal carbonization, hydrothermal liquefaction and pyrolysis has been of interest by researchers globally. Biochar has been globally produced due to its diverse applications from environmental bioremediation to energy storage. Also, several factors affect the production of biochar including feedstock/biomass type, moisture content, heating rate, and temperature. Recently the application of biochar has increased tremendously owing to the cost effectiveness and eco-friendly nature. Thus this communication summarized and highlights the preferred feedstock for optimized biochar yield along with the factor influencing the production. This review provides a close view on biochar activation approaches and synthesis techniques. The application of biochar in environmental remediation, composting, as a catalyst, and in energy storage has been reviewed. These informative findings were supported with an overview of lifecycle and techno-economical assessments in the production of these carbon based catalysts. Integrated closed loop approaches towards biochar generation with lesser/zero landfill waste for safeguarding the environment has also been discussed. Lastly the research gaps were identified and the future perspectives have been elucidated.
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Affiliation(s)
- Vivek Kumar Gaur
- School of Energy and Chemical Engineering, UNIST, Ulsan, 44919, Republic of Korea; Centre for Energy and Environmental Sustainability, Lucknow, 226 001, Uttar Pradesh, India
| | - Krishna Gautam
- Centre for Energy and Environmental Sustainability, Lucknow, 226 001, Uttar Pradesh, India
| | - Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | | | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, 226 001, Uttar Pradesh, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India; India Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248 007, Uttarakhand, India
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat, 382 010, India.
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25
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Boone C, Panian J, You S, Taub P, Roberts A, Hsiao A, Liau J. Abstract No. 394 May-Thurner iliac venous compression and clinical presentation with evaluated with 4D Flow MRI. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Neogi S, Sharma V, Khan N, Chaurasia D, Ahmad A, Chauhan S, Singh A, You S, Pandey A, Bhargava PC. Sustainable biochar: A facile strategy for soil and environmental restoration, energy generation, mitigation of global climate change and circular bioeconomy. Chemosphere 2022; 293:133474. [PMID: 34979200 DOI: 10.1016/j.chemosphere.2021.133474] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/15/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
The increasing agro-demands with the burgeoning population lead to the accumulation of lignocellulosic residues. The practice of burning agri-residues has consequences viz. Release of soot and smoke, nutrient depletion, loss of soil microbial diversity, air pollution and hazardous effects on human health. The utilization of agricultural waste as biomass to synthesize biochar and biofuels, is the pertinent approach for attaining sustainable development goals. Biochar contributes in the improvement of soil properties, carbon sequestration, reducing greenhouse gases (GHG) emission, removal of organic and heavy metal pollutants, production of biofuels, synthesis of useful chemicals and building cementitious materials. The biochar characteristics including surface area, porosity and functional groups vary with the type of biomass consumed in pyrolysis and the control of parameters during the process. The major adsorption mechanisms of biochar involve physical-adsorption, ion-exchange interactions, electrostatic attraction, surface complexation and precipitation. The recent trend of engineered biochar can enhance its surface properties, pH buffering capacity and presence of desired functional groups. This review focuses on the contribution of biochar in attaining sustainable development goals. Hence, it provides a thorough understanding of biochar's importance in enhancing soil productivity, bioremediation of environmental pollutants, carbon negative concretes, mitigation of climate change and generation of bioenergy that amplifies circular bioeconomy, and concomitantly facilitates the fulfilment of the United Nation Sustainable Development Goals. The application of biochar as seen is primarily targeting four important SDGs including clean water and sanitation (SGD6), affordable and clean energy (SDG7), responsible consumption and production (SDG12) and climate action (SDG13).
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Affiliation(s)
- Suvadip Neogi
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Vikas Sharma
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Nawaz Khan
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Deepshi Chaurasia
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Anees Ahmad
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Shraddha Chauhan
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Anuradha Singh
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Ashok Pandey
- Centre for Innovation and Transnational Research, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Preeti Chaturvedi Bhargava
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India.
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Sharma P, Gaur VK, Gupta S, Varjani S, Pandey A, Gnansounou E, You S, Ngo HH, Wong JWC. Trends in mitigation of industrial waste: Global health hazards, environmental implications and waste derived economy for environmental sustainability. Sci Total Environ 2022; 811:152357. [PMID: 34921885 DOI: 10.1016/j.scitotenv.2021.152357] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/30/2021] [Accepted: 12/08/2021] [Indexed: 05/27/2023]
Abstract
Majority of industries, in order to meet the technological development and consumer demands generate waste. The untreated waste spreads out toxic and harmful substances in the environment which serves as a breeding ground for pathogenic microorganisms thus causing severe health hazards. The three industrial sectors namely food, agriculture, and oil industry are among the primary organic waste producers that affect urban health and economic growth. Conventional treatment generates a significant amount of greenhouse gases which further contributes to global warming. Thus, the use of microbes for utilization of this waste, liberating CO2 offers an indispensable tool. The simultaneous production of value-added products such as bioplastics, biofuels, and biosurfactants increases the economics of the process and contributes to environmental sustainability. This review comprehensively summarized the composition of organic waste generated from the food, agriculture, and oil industry. The linkages between global health hazards of industrial waste and environmental implications have been uncovered. Stare-of-the-art information on their subsequent utilization as a substrate to produce value-added products through bio-routes has been elaborated. The research gaps, economical perspective(s), and future research directions have been identified and discussed to strengthen environmental sustainability.
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Affiliation(s)
- Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | - Vivek Kumar Gaur
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India; Centre for Energy and Environmental Sustainability, Lucknow, India
| | | | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India
| | - Edgard Gnansounou
- Bioenergy and Energy Planning Research Group (BPE), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong
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Gupta R, Miller R, Sloan W, You S. Economic and environmental assessment of organic waste to biomethane conversion. Bioresour Technol 2022; 345:126500. [PMID: 34890814 DOI: 10.1016/j.biortech.2021.126500] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
Biomethane and biofertilizer production by anaerobic co-digestion of organic waste serves a promising method for reducing the environmental footprint of organic waste management. This study evaluated the techno-economic feasibility and environmental impacts of organic waste to biomethane development in Glasgow, UK using net present value (NPV) analysis and life cycle assessment. Four different biogas upgrading technologies (pressurized water scrubbing, chemical scrubbing, membrane separation, and pressure swing adsorption) were compared. The membrane separation technology-based biomethane production meets 0.8% of the gas demand for Glasgow households with a conversion efficiency of 83%. The organic waste to biomethane development saved up to 264 kg CO2-eq annually per tonne of waste treated, with an NPV ranged between £-9.0 million and £-12.0 million based on the upgrading technology. High costs for waste collection and transportation are primarily responsible for the negative NPV. Carbon taxes between £31.30 and £58.02 per tonne of CO2 are needed for economically viable biomethane production.
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Affiliation(s)
- Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Royce Miller
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - William Sloan
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
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29
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Yang Y, Guo Z, Li Y, Qing Y, Wang W, Ma Z, You S, Li W. Multifunctional superhydrophobic self-cleaning cotton fabrics with oil-water separation and dye degradation via thiol-ene click reaction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120123] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Liu WJ, Yang H, Park YK, Kwon E, Huang CW, Thanh BX, Khiem TC, You S, Ghanbari F, Lin KYA. Enhanced degradation of ultra-violet stabilizer Bis(4-hydroxy)benzophenone using oxone catalyzed by hexagonal nanoplate-assembled CoS 3-dimensional cluster. Chemosphere 2022; 288:132427. [PMID: 34600922 DOI: 10.1016/j.chemosphere.2021.132427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
As UV-light stabilizers, Bis(4-hydroxy)benzophenone (BBP), are extensively consumed to quench radicals from photooxidation, continuous release of BPs into the environment poses serious threats to the ecology in view of their xenohormone toxicities, and BBP shall be eliminated from water to avoid its adverse effect. Since sulfate radical (SR)-based chemical oxidation techniques have been proven as effective procedures for eliminating organic emerging contaminants, this study aims to develop useful SR-based procedures through activating Oxone for degrading BBP in water. In contrast to the conventional Co3O4, cobalt sulfide (CoS) is particularly proposed as an alternative heterogeneous catalyst for activating Oxone to degrade BBP because CoS exhibits more reactive redox characteristics. As structures of catalysts predominantly control their catalytic activities, in this study, a unique nanoplate-assembled CoS (NPCS) 3D cluster is fabricated via a convenient one-step process to serve as a promising heterogeneous catalyst for activating Oxone to degrade BBP. With NPCS = 100 mg/L and Oxone = 200 mg/L, 5 mg/L of BBP can be completely eliminated in 60 min. The catalytic activity of NPCS towards Oxone activation also significantly surpasses the reference material, Co3O4, to enhance degradation of BBP. Ea of BBP degradation by NPCS-activated Oxone is also determined as a relatively low value of 42.7 kJ/mol. The activation mechanism as well as degradation pathway of BBP degradation by NPCS-activated Oxone was investigated and validated through experimental evidences and density functional theory (DFT) calculation to offer valuable insights into degradation behaviors for developing SR-based processes of BBP degradation using CoS catalysts.
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Affiliation(s)
- Wei-Jie Liu
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan
| | - Hongta Yang
- Department of Chemical Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Eilhann Kwon
- Department of Environment and Energy, Sejong University, 209 Neungdong-ro, Gunja-dong, Gwangjin-gu, Seoul, Republic of Korea
| | - Chao-Wei Huang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Bui Xuan Thanh
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, 700000, Viet Nam
| | - Ta Cong Khiem
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Farshid Ghanbari
- Research Center for Environmental Contaminants (RCEC), Abadan University of Medical Sciences, Abadan, Iran.
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan.
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Jiang P, Klemeš JJ, Fan YV, Fu X, Tan RR, You S, Foley AM. Energy, environmental, economic and social equity (4E) pressures of COVID-19 vaccination mismanagement: A global perspective. Energy (Oxf) 2021; 235:121315. [PMID: 34226789 PMCID: PMC8245053 DOI: 10.1016/j.energy.2021.121315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/20/2021] [Accepted: 06/22/2021] [Indexed: 05/04/2023]
Abstract
Vaccination now offers a way to resolve the COVID-19 pandemic. However, it is critical to recognise the full energy, environmental, economic and social equity (4E) impacts of the vaccination life cycle. The full 4E impacts include the design and trials, order management, material preparation, manufacturing, cold chain logistics, low-temperature storage, crowd management and end-of-life waste management. A life cycle perspective is necessary for sustainable vaccination management because a prolonged immunisation campaign for COVID-19 is likely. The impacts are geographically dispersed across sectors and regions, creating real and virtual 4E footprints that occur at different timescales. Decision-makers in industry and governments have to act, unify, resolve, and work together to implement more sustainable COVID-19 vaccination management globally and locally to minimise the 4E footprints. Potential practices include using renewable energy in production, storage, transportation and waste treatment, using better product design for packaging, using the Internet of Things (IoT) and big data analytics for better logistics, using real-time database management for better tracking of deliveries and public vaccination programmes, and using coordination platforms for more equitable vaccine access. These practices raise global challenges but suggest solutions with a 4E perspective, which could mitigate the impacts of global vaccination campaigns and prepare sustainably for future pandemics and global warming.
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Affiliation(s)
- Peng Jiang
- Department of Industrial Engineering and Engineering Management, Business School, Sichuan University, Chengdu, 610064, China
| | - Jiří Jaromír Klemeš
- Sustainable Process Integration Laboratory - SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology- VUT Brno, Technická 2896/2, 616 69, Brno, Czech Republic
| | - Yee Van Fan
- Sustainable Process Integration Laboratory - SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology- VUT Brno, Technická 2896/2, 616 69, Brno, Czech Republic
| | - Xiuju Fu
- Department of Systems Science, Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A∗STAR), Singapore, 138632, Singapore
| | - Raymond R Tan
- Chemical Engineering Department, De La Salle University, 2401 Taft Avenue, 0922, Manila, Philippines
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - Aoife M Foley
- Civil, Structural, and Environmental Engineering, Trinity College Dublin, The University of Dublin, Ireland
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast, BT9 5AH, United Kingdom
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32
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Yin JY, Oh WD, Kwon E, Thanh BX, You S, Wang H, Lin KYA. Cobalt sulfide nanofilm-assembled cube as an efficient catalyst for activating monopersulfate to degrade UV filter, 4,4′-dihydroxybenzophenone, in water. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126891] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Sridharan S, Kumar M, Bolan NS, Singh L, Kumar S, Kumar R, You S. Are microplastics destabilizing the global network of terrestrial and aquatic ecosystem services? Environ Res 2021; 198:111243. [PMID: 33933493 DOI: 10.1016/j.envres.2021.111243] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/05/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
Plastic has created a new man-made ecosystem called plastisphere. The plastic pieces including microplastics (MPs) and nanoplastics (NPs) have emerged as a global concern due to their omnipresence in ecosystems and their ability to interact with the biological systems. Nevertheless, the long-term impacts of MPs on biotic and abiotic resources are not completely understood, and existing evidence suggests that MPs are hazardous to various keystones species of the global biomes. MP-contaminated ecosystems show reduced floral and faunal biomass, productivity, nitrogen cycling, oxygen-generation and carbon sequestration, suggesting that MPs have already started affecting ecological biomes. However, not much is known about the influence of MPs towards the ecosystem services (ESs) cascade and its correlation with the biodiversity loss. MPs are perceived as a menace to the global ecosystems, but their possible impacts on the provisional, regulatory, and socio-economic ESs have not been extensively studied. This review investigates not only the potentiality of MPs to perturb the functioning of terrestrial and aquatic biomes, but also the associated social, ecological and economic repercussions. The possible long-term fluxes in the ES network of terrestrial and aquatic niches are also discussed.
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Affiliation(s)
- Srinidhi Sridharan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India; CSIR National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, Maharashtra, India
| | - Manish Kumar
- CSIR National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, Maharashtra, India
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation, University of Newcastle, Callaghan, NSW, 2308, Australia; Cooperative Research Centre for High Performance Soils, Callaghan, NSW, 2308, Australia
| | - Lal Singh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India; CSIR National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, Maharashtra, India
| | - Sunil Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India; CSIR National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, Maharashtra, India
| | - Rakesh Kumar
- CSIR National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, Maharashtra, India
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK.
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34
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Affiliation(s)
| | - Wangliang Li
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
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35
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Atugoda T, Vithanage M, Wijesekara H, Bolan N, Sarmah AK, Bank MS, You S, Ok YS. Interactions between microplastics, pharmaceuticals and personal care products: Implications for vector transport. Environ Int 2021; 149:106367. [PMID: 33497857 DOI: 10.1016/j.envint.2020.106367] [Citation(s) in RCA: 182] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 05/11/2023]
Abstract
Microplastics are well known for vector transport of hydrophobic organic contaminants, and there are growing concerns regarding their potential adverse effects on ecosystems and human health. However, recent studies focussing on hydrophilic compounds, such as pharmaceuticals and personal care products (PPCPs), have shown that the compounds ability to be adsorbed onto plastic surfaces. The extensive use of PPCPs has led to their ubiquitous presence in the environment resulting in their cooccurrence with microplastics. The partitioning between plastics and PPCPs and their fate through vector transport are determined by various physicochemical characteristics and environmental conditions of specific matrices. Although the sorption capacities of microplastics for different PPCP compounds have been investigated extensively, these findings have not yet been synthesized and analyzed critically. The specific objectives of this review were to synthesize and critically assess the various factors that affect the adsorption of hydrophilic compounds such as PPCPs on microplastic surfaces and their fate and transport in the environment. The review also focuses on environmental factors such as pH, salinity, and dissolved organics, and properties of polymers and PPCP compounds, and the relationships with sorption dynamics and mechanisms. Furthermore, the ecotoxicological effects of PPCP-sorbed microplastics on biota and human health are also discussed.
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Affiliation(s)
- Thilakshani Atugoda
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka.
| | - Hasintha Wijesekara
- Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri Lanka
| | - Nanthi Bolan
- Global Centre for Environmental Remediation (GCER), The University of Newcastle (UON), Callaghan, NSW 2308, Australia
| | - Ajit K Sarmah
- Department of Civil and Environmental Engineering, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | | | - Siming You
- James Watt School of Engineering, James Watt South Building, University of Glasgow, Glasgow G12 8QQ, UK
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, South Korea.
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36
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Kumar M, You S, Beiyuan J, Luo G, Gupta J, Kumar S, Singh L, Zhang S, Tsang DCW. Lignin valorization by bacterial genus Pseudomonas: State-of-the-art review and prospects. Bioresour Technol 2021; 320:124412. [PMID: 33249259 DOI: 10.1016/j.biortech.2020.124412] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/08/2020] [Accepted: 11/11/2020] [Indexed: 06/12/2023]
Abstract
The most prominent aromatic feedstock on Earth is lignin, however, lignin valorization is still an underrated subject. The principal preparatory strategies for lignin valorization are fragmentation and depolymerization which help in the production of fuels and chemicals. Owing to lignin's structural heterogeneity, these strategies result in product generation which requires tedious separation and purification to extract target products. The bacterial genus Pseudomonas has been dominant for its lignin valorization potency, owing to a robust enzymatic machinery that is used to funnel variable lignin derivatives into certain target products such as polyhydroxyalkanotes (PHAs) and cis, cis-muconic acid (MA). In this review, the potential of genus Pseudomonas in lignin valorization is critically reviewed along with the advanced genetic techniques and tools to ease the use of lignin/lignin-model compounds for the synthesis of bioproducts. This review also highlights the research gaps in lignin biovalorization and discuss the challenges and possibilities for future research.
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Affiliation(s)
- Manish Kumar
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; CSIR - National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Siming You
- University of Glasgow, James Watt School of Engineering, Glasgow G12 8 QQ, United Kingdom
| | - Jingzi Beiyuan
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environment and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Gang Luo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Juhi Gupta
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Sunil Kumar
- CSIR - National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Lal Singh
- CSIR - National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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Singh E, Kumar A, Mishra R, You S, Singh L, Kumar S, Kumar R. Pyrolysis of waste biomass and plastics for production of biochar and its use for removal of heavy metals from aqueous solution. Bioresour Technol 2021; 320:124278. [PMID: 33099158 DOI: 10.1016/j.biortech.2020.124278] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/11/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
The aim of this work was to study the pyrolysis of waste biomass and plastics and use the produced biochar for the removal of heavy metals from aqueous solution. The batch experiments of Fe, Ni, Cu, Cr, Cd and Pb with biochars and plastic chars were carried for determining the effects of various experimental parameters (feedstock, contact time, adsorbent dose, pH and pyrolysis temperature). The isothermal sorption models demonstrated that the sorption capacities of biochars are higher in comparison to the plastic chars. The maximum removal efficiency shown by biochars and plastic chars at pH 4 was 99.86% and 99.93%, respectively. Both the carbon materials are thereby recognized as an environment-friendly and efficient pollutant control material at various studied parameters.
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Affiliation(s)
- Ekta Singh
- CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Aman Kumar
- CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Rahul Mishra
- CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Lal Singh
- CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
| | - Sunil Kumar
- CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India.
| | - Rakesh Kumar
- CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India
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38
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Varjani S, Rakholiya P, Yong Ng H, Taherzadeh MJ, Hao Ngo H, Chang JS, Wong JWC, You S, Teixeira JA, Bui XT. Bio-based rhamnolipids production and recovery from waste streams: Status and perspectives. Bioresour Technol 2021; 319:124213. [PMID: 33254448 DOI: 10.1016/j.biortech.2020.124213] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/26/2020] [Accepted: 09/29/2020] [Indexed: 06/12/2023]
Abstract
Bio-based rhamnolipid production from waste streams is gaining momentum nowadays because of increasing market demand, huge range of applications and its economic and environment friendly nature. Rhamnolipid type biosurfactants are produced by microorganisms as secondary metabolites and have been used to reduce surface/interfacial tension between two different phases. Biosurfactants have been reported to be used as an alternative to chemical surfactants. Pseudomonas sp. has been frequently used for production of rhamnolipid. Various wastes can be used in production of rhamnolipid. Rhamnolipids are widely used in various industrial applications. The present review provides information about structure and nature of rhamnolipid, production using different waste materials and scale-up of rhamnolipid production. It also provides comprehensive literature on various industrial applications along with perspectives and challenges in this research area.
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Affiliation(s)
- Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Parita Rakholiya
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India; Kadi Sarva Vishwavidyalaya, Gandhinagar, Gujarat 382015, India
| | - How Yong Ng
- National University of Singapore Environmental Research Institute, 5A Engineering Drive 1, Singapore 117411, Singapore
| | | | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Jose A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710057 Braga, Portugal
| | - Xuan-Thanh Bui
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam; Key Laboratory of Advanced Waste Treatment Technology, Vietnam National University Ho Chi Minh (VNU-HCM), Linh Trung ward, Thu Duc district, Ho Chi Minh City 700000, Viet Nam
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Varjani S, Rakholiya P, Ng HY, You S, Teixeira JA. Microbial degradation of dyes: An overview. Bioresour Technol 2020; 314:123728. [PMID: 32665105 DOI: 10.1016/j.biortech.2020.123728] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 05/21/2023]
Abstract
Industrialization increases use of dyes due to its high demand in paper, cosmetic, textile, leather and food industries. This in turn would increase wastewater generation from dye industrial activities. Various dyes and its structural compounds present in dye industrial wastewater have harmful effects on plants, animals and humans. Synthetic dyes are more resistant than natural dyes to physical and chemical methods for remediation which makes them more difficult to get decolorize. Microbial degradation has been researched and reviewed largely for quicker dye degradation. Genetically engineered microorganisms (GEMs) play important role in achieving complete dye degradation. This paper provides scientific and technical information about dyes & dye intermediates and biodegradation of azo dye. It also compiles information about factors affecting dye(s) biodegradation, role of genetically modified organisms (GMOs) in process of dye(s) degradation and perspectives in this field of research.
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Affiliation(s)
- Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Parita Rakholiya
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India; Kadi Sarva Vishwavidyalaya, Gandhinagar, Gujarat 382015, India
| | - How Yong Ng
- National University of Singapore Environmental Research Institute, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Jose A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710057 Braga, Portugal
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Affiliation(s)
| | | | - Yong Sik Ok
- Korea University, Seoul, Korea. .,APRU Sustainable Waste Management Program, Korea University, Seoul, Korea
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Wang J, You S, Lu Z, Chen R, Xu F. Life cycle assessment of bio-based levoglucosan production from cotton straw through fast pyrolysis. Bioresour Technol 2020; 307:123179. [PMID: 32222688 DOI: 10.1016/j.biortech.2020.123179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/08/2020] [Accepted: 03/11/2020] [Indexed: 06/10/2023]
Abstract
This study aimed to evaluate the environmental impacts (i.e. global warming potential (GWP) and resource depletion (RD)) of the bio-based levoglucosan production process through fast pyrolysis of cotton straw via life cycle assessment (LCA). An LCA model consisting of feedstock transportation, biomass pretreatment, fast pyrolysis, bio-oil transportation, bio-oil recovery and levoglucosan extraction was developed. Results indicated that GWP and RD of bio-based levoglucosan production were approximately 2 and 32.5 times less than that of the petroleum-based counterpart. Sensitivity analysis showed that the GWP and RD of levoglucosan production were highly sensitive to plant size, hydrochloric acid usage, cooling energy, levoglucosan yield and bio-oil yield. The results of this research could provide a framework for robust decision making at an industrial level, which is useful for the commercial-scale production of levoglucosan.
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Affiliation(s)
- Junqi Wang
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China; College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Siming You
- School of Engineering, University of Glasgow, Glasgow, UK
| | - Zhoumin Lu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Rui Chen
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Fuqing Xu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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Norris J, Simpson B, Parry M, Allen C, Ball R, Freeman A, Kelly D, Kim H, Kirkham A, You S, Kasivisvanathan V, Whitaker H, Emberton M. mpMRI-visible prostate cancer is enriched with genomic hallmarks of poor prognosis: A bioinformatic analysis. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33723-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Ascher S, Li W, You S. Life cycle assessment and net present worth analysis of a community-based food waste treatment system. Bioresour Technol 2020; 305:123076. [PMID: 32126483 DOI: 10.1016/j.biortech.2020.123076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/19/2020] [Accepted: 02/21/2020] [Indexed: 06/10/2023]
Abstract
Food waste management has been a global challenge with significant economic and environmental impacts. A community-based food waste treatment scheme for Glasgow, UK is proposed. The food waste was treated by small-scale wet, mesophilic anaerobic digestion. Biogas was combusted in a combined heat and power plant to generate heat and electricity for each community. 201.39 kWh of electricity and 246.09 kWh of thermal energy could be provided to local communities per tonne of food waste treated. A total of 52,762 tonnes of food waste were produced each year in the city. Net-present worth analysis was employed to evaluate the scheme's economic feasibility. The scheme's environmental impacts were evaluated using life cycle assessment. The entire system saved 92.27 kg CO2-eq. per tonne of food waste treated and had a net-present worth of £ 3.187 million with a carbon tax of 50 £ tonne-1 and a biogas yield of 190 m3 tonne-1.
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Affiliation(s)
- Simon Ascher
- Division of Systems, Power and Energy, James Watt School of Engineering, University of Glasgow, G12 8QQ, UK
| | - Wangliang Li
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Siming You
- Division of Systems, Power and Energy, James Watt School of Engineering, University of Glasgow, G12 8QQ, UK.
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Sun J, Kim H, You S, Choi Y, Min Y, Park K. MA10.03 Quantitative Computed Tomography (CT) Based Texture Analysis; Could We Predict the Future Growth of the Pure Ground Glass Nodules? J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kim S, You S, Cha J, Lee J. Feasibility of modulated electro-hyperthermia as a concomitant boost to preoperative radiotherapy in locally advanced rectal cancer: A phase 2 trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Wu X, Zhang W, Li H, You S, Shi J, Zhang C, Shi R, Huang Z, Cao Y, Zhang X. Plasma C-type lectin-like receptor 2 as a predictor of death and vascular events in patients with acute ischemic stroke. Eur J Neurol 2019; 26:1334-1340. [PMID: 31081579 DOI: 10.1111/ene.13984] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 05/06/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE C-type lectin-like receptor 2 (CLEC-2) has prominent involvement in platelet activation, which is increased in coronary heart disease and acute ischaemic stroke (AIS) and is associated with stroke progression and stroke prognosis. Here, the aim was to examine the prognostic value of CLEC-2 in death and vascular event recurrence in AIS patients. METHODS In all, 352 patients with AIS were studied prospectively. All patients were followed up for 1 year. Death for all vascular events and a combination of death and vascular diseases (recurrent stroke, myocardial infarction, hospitalized and treated angina, hospitalized and treated peripheral arterial disease) were recorded. RESULTS During 1 year of follow-up, 46 patients (14.2%) experienced death or combined end-points (23 death and 46 combined end-points). Plasma CLEC-2 (pCLEC-2) was significantly associated with an increased risk of death and combined events of death and vascular diseases after adjusting for age, sex, history of hypertension, diabetes mellitus and coronary artery disease, and National Institutes of Health Stroke Scale scores. Each 1 SD higher log-transformed pCLEC-2 was associated with a 4.27-fold (hazard ratio 4.27, 95% confidence interval 1.71-10.65) increased risk for death and a 2.42-fold increased risk for combined end-points (hazard ratio 2.42, 95% confidence interval 1.52-3.86). The optimal cut-off point of pCLEC-2 for predicting death was 184.38 pg/ml. CONCLUSIONS Higher pCLEC-2 levels at admission were associated with increased risk of death and combined events of death and vascular diseases in patients with AIS, which indicated that pCLEC-2 is an important prognostic factor for AIS.
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Affiliation(s)
- X Wu
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - W Zhang
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - H Li
- Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - S You
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - J Shi
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - C Zhang
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - R Shi
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Z Huang
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Y Cao
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - X Zhang
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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Zhu Q, Wang J, Yin Z, Xie F, Chen R, You S, Jiang C, Li S, Li Y, Zha X. Dual tracing modality of indocyanine green and methylene blue is an alternative option for sentinel lymph node biopsy. Breast 2019. [DOI: 10.1016/s0960-9776(19)30408-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Chen R, Wang J, Yin Z, Xie F, Zhu Q, You S, Jiang C, Li Y, Li S, Zha X. Factors analysis for choosing mastectomy in patients eligible for breast conserving surgery. Breast 2019. [DOI: 10.1016/s0960-9776(19)30405-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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You S, Ho SW, Li T, Maneerung T, Wang CH. Techno-economic analysis of geopolymer production from the coal fly ash with high iron oxide and calcium oxide contents. J Hazard Mater 2019; 361:237-244. [PMID: 30199823 DOI: 10.1016/j.jhazmat.2018.08.089] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
In this work, we firstly examined the technical feasibility of geopolymer synthesis from the coal fly ash with high iron oxide (48.84 wt.%) and calcium oxide (22.15 wt.%) contents. The heat resistance of geopolymer was represented by the dry weight loss which ranged from 2.5 to 4.9% and was better than that (11.7%) of OPC. However, the high iron oxide content made the acid resistance (13-14%) of geopolymer inferior to OPC. The economics of geopolymer production changes significantly upon the variation in the arrangement of material use and geopolymer price. The costs of Na2SiO3 and NaOH and the benefit of geopolymer selling were the major factors affecting the economic feasibility of geopolymer production. When the Na2SiO3 price was around 400 USD/ton, the geopolymer production will be profitable even if the geopolymer price was as low as 50 USD/ton. It is possible to improve the economics of geopolymer production by varying the arrangement of material use while not impairing the performance of geopolymer.
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Affiliation(s)
- Siming You
- Division of Systems, Power & Energy, School of Engineering, University of Glasgow, G12 8QQ, UK
| | - Siew Wah Ho
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Tingting Li
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Thawatchai Maneerung
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Chi-Hwa Wang
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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