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Bolan S, Sharma S, Mukherjee S, Kumar M, Rao CS, Nataraj KC, Singh G, Vinu A, Bhowmik A, Sharma H, El-Naggar A, Chang SX, Hou D, Rinklebe J, Wang H, Siddique KHM, Abbott LK, Kirkham MB, Bolan N. Biochar modulating soil biological health: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169585. [PMID: 38157897 DOI: 10.1016/j.scitotenv.2023.169585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/15/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Biochar can be used for multifunctional applications including the improvement of soil health and carbon storage, remediation of contaminated soil and water resources, mitigation of greenhouse gas emissions and odorous compounds, and feed supplementation to improve animal health. A healthy soil preserves microbial biodiversity that is effective in supressing plant pathogens and pests, recycling nutrients for plant growth, promoting positive symbiotic associations with plant roots, improving soil structure to supply water and nutrients, and ultimately enhancing soil productivity and plant growth. As a soil amendment, biochar assures soil biological health through different processes. First, biochar supports habitats for microorganisms due to its porous nature and by promoting the formation of stable soil micro-aggregates. Biochar also serves as a carbon and nutrient source. Biochar alters soil physical and chemical properties, creating optimum soil conditions for microbial diversity. Biochar can also immobilize soil pollutants and reduce their bioavailability that would otherwise inhibit microbial growth. However, depending on the pyrolysis settings and feedstock resources, biochar can be comprised of contaminants including polycyclic aromatic hydrocarbons and potentially toxic elements that can inhibit microbial activity, thereby impacting soil health.
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Affiliation(s)
- Shiv Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia 6009, Australia; Healthy Environments And Lives (HEAL) National Research Network, Australia
| | - Shailja Sharma
- School of Biological & Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
| | - Santanu Mukherjee
- School of Agriculture, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
| | - Manish Kumar
- Amity Institute of Environmental Sciences, Amity University, Noida, India
| | - Ch Srinivasa Rao
- ICAR-National Academy of Agricultural Research Management, Hyderabad 500 030, India
| | - K C Nataraj
- Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Anantapur 515 001, Andhra Pradesh, India
| | - Gurwinder Singh
- Global Innovative Centre for Advanced Nanomaterials (GICAN), College of Engineering, Science, and Environment (CESE), The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials (GICAN), College of Engineering, Science, and Environment (CESE), The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Arnab Bhowmik
- Department of Natural Resources and Environmental Design, North Carolina Agricultural and Technical State University, Greensboro, NC, United States of America
| | - Harmandeep Sharma
- Department of Natural Resources and Environmental Design, North Carolina Agricultural and Technical State University, Greensboro, NC, United States of America
| | - Ali El-Naggar
- Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo 11241, Egypt; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, People's Republic of China; Department of Renewable Resources, 442 Earth Sciences Building, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Scott X Chang
- Department of Renewable Resources, 442 Earth Sciences Building, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, People's Republic of China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, People's Republic of China
| | - Kadambot H M Siddique
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Lynette K Abbott
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - M B Kirkham
- Department of Agronomy, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS, United States of America
| | - Nanthi Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia 6009, Australia; Healthy Environments And Lives (HEAL) National Research Network, Australia.
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2
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Rodrigues JL, Campêlo JDM, Wisniewski A, Hantao LW, Eberlin MN, Santos JM. Chemical evaluation of pyrolysis oils from domestic and industrial effluent treatment station sludges with perspective to produce value-added products. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 168:202-210. [PMID: 37311387 DOI: 10.1016/j.wasman.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/14/2023] [Accepted: 06/02/2023] [Indexed: 06/15/2023]
Abstract
The use of renewable sources for energy has increased due to the high demand of modern society and the environmental impacts caused by the use of fossil fuels. Environmentally friendly renewable energy production may involve thermal processes, including the application of biomass. We provide a comprehensive chemical characterization of sludges from domestic and industrial effluent treatment stations, as well as the bio-oils produced by fast pyrolysis. A comparative study of the sludges and the corresponding pyrolysis oils was performed, with characterization of the raw materials using thermogravimetric analysis, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, elemental analysis, and inductively coupled plasma optical emission spectrometry. The bio-oils were characterized using comprehensive two-dimensional gas chromatography/mass spectrometry that identified compounds classified according to their chemical class, mainly related to nitrogenous (62.2%) and ester (18.9%) for domestic sludge bio-oil, and nitrogenous (61.0%) and ester (27.6%) for industrial sludge bio-oil. The Fourier transform ion cyclotron resonance mass spectrometry revealed a broad distribution of classes with oxygen and/or sulfur (N2O2S, O2, and S2 classes). Nitrogenous compounds (N, N2, N3, and NxOxclasses) were also found to be abundant in both bio-oils, due to the origins of the sludges (with the presence of proteins), making these bio-oils unsuitable for use as renewable fuels, since NOxgases could be released during combustion processes. The presence of functionalized alkyl chains indicated the potential of the bio-oils as sources of high added-value compounds that could be obtained by recovery processes and used for the manufacture of fertilizers, surfactants, and nitrogen solvents.
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Affiliation(s)
- Jonatas L Rodrigues
- Institute of Chemistry, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Jacqueline de M Campêlo
- Petroleum, Energy and Mass Spectrometry Research Group (PEM), Department of Chemistry, Federal Rural University of Pernambuco - UFRPE, Recife, Pernambuco, Brazil
| | - Alberto Wisniewski
- Petroleum and Energy from Biomass Research Group (PEB), Department of Chemistry, Federal University of Sergipe - UFS, São Cristóvão, Sergipe, Brazil
| | - Leandro W Hantao
- Institute of Chemistry, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Marcos N Eberlin
- Institute of Chemistry, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil; School of Engineering, Mackenzie Presbyterian University. Rua da Consolação, 930. São Paulo - SP. 01302-907, Brazil; MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian Institute. Rua da Consolação, 896. São Paulo - SP. 01302-907. Brazil
| | - Jandyson M Santos
- Petroleum, Energy and Mass Spectrometry Research Group (PEM), Department of Chemistry, Federal Rural University of Pernambuco - UFRPE, Recife, Pernambuco, Brazil.
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3
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Costa JAV, Zaparoli M, Cassuriaga APA, Cardias BB, Vaz BDS, Morais MGD, Moreira JB. Biochar production from microalgae: a new sustainable approach to wastewater treatment based on a circular economy. Enzyme Microb Technol 2023; 169:110281. [PMID: 37390584 DOI: 10.1016/j.enzmictec.2023.110281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/31/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
The generation of wastewater due to human activities are the main responsible for environmental problems. These problems are caused by the large amount of organic and inorganic pollutants related to the presence of pesticides, metals, pathogens, drugs and dyes. The photosynthetic treatment of effluents emerges as a sustainable and low-cost alternative for developing wastewater treatment systems based on a circular economy. Chemical compounds present in wastewater can be recovered and reused as a source of nutrients in microalgae cultivation to produce value-added bioproducts. The microalgal biomass produced in the cultivation with effluents has the potential to produce biochar. Biochar is carbon-rich charcoal that can be obtained by converting microalgae biomass through thermal decomposition of organic raw material under limited oxygen supply conditions. Pyrolysis, torrefaction, and hydrothermal carbonization are processes used for biochar synthesis. The application of microalgal biochar as an adsorbent material to remove several compounds present in effluents is an effective and fast treatment. This effectiveness is usually related to the unique physicochemical characteristics of the biochar, such as the presence of functional groups, ion exchange capacity, thermal stability, and high surface area, volume, and pore area. In addition, biochar can be reused in the adsorption process or applied in agriculture for soil correction. In this context, this review article describes the production, characterization, and use of microalgae biochar through a sustainable approach to wastewater treatment, emphasizing its potential in the circular economy. In addition, the article approaches the potential of microalgal biochar as an adsorbent material and its reuse after the adsorption of contaminants, as well as highlights the challenges and future perspectives on this topic.
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Affiliation(s)
- Jorge Alberto Vieira Costa
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, RS, Brazil; Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, PR, Brazil
| | - Munise Zaparoli
- Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, PR, Brazil
| | - Ana Paula Aguiar Cassuriaga
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Bruna Barcelos Cardias
- Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, PR, Brazil
| | - Bruna da Silva Vaz
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal Uni-versity of Rio Grande, Rio Grande, RS, Brazil.
| | - Michele Greque de Morais
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal Uni-versity of Rio Grande, Rio Grande, RS, Brazil.
| | - Juliana Botelho Moreira
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal Uni-versity of Rio Grande, Rio Grande, RS, Brazil.
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Kaur R, Tarun Kumar V, Krishna BB, Bhaskar T. Characterization of slow pyrolysis products from three different cashew wastes. BIORESOURCE TECHNOLOGY 2023; 376:128859. [PMID: 36906241 DOI: 10.1016/j.biortech.2023.128859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
A huge amount of waste is generated by the cashew processing industries. This study aims to valorise these cashew wastes generated at different levels while processing cashew nuts in factories. The feedstocks include cashew skin, cashew shell and cashew shell de-oiled cake. Slow pyrolysis of these three different cashew wastes was performed at varying temperatures (300-500℃) at a heating rate of 10℃/min in a lab scale glass-tubular reactor under inert atmosphere of nitrogen with flow rate of 50 ml/min. The total bio-oil yield for cashew skin and the de-oiled shell cake was 37.1 and 48.6 wt% at 400℃ and 450℃, respectively. However, the maximum bio-oil yield obtained for cashew shell waste was 54.9 wt% at 500℃. The bio-oil was analysed using GC-MS, FTIR, and NMR. Along with the various functionalities observed in bio-oil through GC-MS, phenolics were observed to have maximum area% for all the feedstocks at all temperatures. At all the slow pyrolysis temperatures, cashew skin led to more biochar yield (40 wt%) as compared to cashew de-oiled cake (26 wt%) and cashew shell waste (22 wt%). Biochar was characterized by various analytical tools such as XRD, FTIR, Proximate analyser, CHNS, Py-GC/MS and SEM. Characterization of biochar revealed its carbonaceous and amorphous nature along with porosity.
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Affiliation(s)
- Ramandeep Kaur
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Valiveti Tarun Kumar
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India
| | - Bhavya B Krishna
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - Thallada Bhaskar
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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5
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Vuppaladadiyam AK, Vuppaladadiyam SSV, Sahoo A, Murugavelh S, Anthony E, Bhaskar T, Zheng Y, Zhao M, Duan H, Zhao Y, Antunes E, Sarmah AK, Leu SY. Bio-oil and biochar from the pyrolytic conversion of biomass: A current and future perspective on the trade-off between economic, environmental, and technical indicators. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159155. [PMID: 36206897 DOI: 10.1016/j.scitotenv.2022.159155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Over the years, the transformation of biomass into a plethora of renewable value-added products has been identified as a promising strategy to fulfil high energy demands, lower greenhouse gas emissions, and exploit under-utilized resources. Techno-economic analysis (TEA) and life-cycle assessment (LCA) are essential to scale up this process while lowering the conversion cost. In this study, trade-offs are made between economic, environmental, and technical indicators produced from these methodologies to better evaluate the commercialization potential of biomass pyrolysis. This research emphasizes the necessity of combining LCA and TEA variables to assess the performance of the early-stage technology and associated constraints. The important findings based on the LCA analysis imply that most of the studies reported in literature focussed on the global warming potentials (GWP) under environmental category by considering greenhouse gases (GHGs) as evaluation parameter, neglecting many other important environmental indices. In addition, the upstream and downstream processes play an important role in understanding the life cycle impacts of a biomass based biorefinery. Under upstream conditions, the use of a specific type of feedstock may influence the LCA conclusions and technical priority. Under downstream conditions, the product utilization as fuels in different energy backgrounds is crucial to the overall impact potentials of the pyrolysis systems. In view of the TEA analysis, investigations towards maximizing the yield of valuable co-products would play an important role in the commercialization of pyrolysis process. However, comprehensive research to compare the conventional, advanced, and emerging approaches of biomass pyrolysis from the economic perspective is currently not available in the literature.
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Affiliation(s)
- Arun Krishna Vuppaladadiyam
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong; College of Science & Engineering, James Cook University, Townsville, Queensland 4811, Australia
| | | | - Abhisek Sahoo
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - S Murugavelh
- CO(2) Research and Green Technologies Centre, VIT, Vellore, Tamil Nadu 632014, India
| | - Edward Anthony
- Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK
| | - Thallada Bhaskar
- Thermo-Catalytic Processes Area (TPA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India
| | - Ying Zheng
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - Ming Zhao
- School of Environment, Tsinghua University, Beijing 100084, China; Research Center of Biogas Centralized Utilization, Beijing 100084, China
| | - Huabo Duan
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Yan Zhao
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Elsa Antunes
- College of Science & Engineering, James Cook University, Townsville, Queensland 4811, Australia.
| | - Ajit K Sarmah
- Department of Civil and Environmental Engineering, The Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Shao-Yuan Leu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong.
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Chukwuneke JL, Sinebe JE, Orugba HO, Olisakwe HC, Ajike C. Production and physico-chemical characteristics of pyrolyzed bio-oil derived from cow hooves. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2022. [DOI: 10.1080/25765299.2022.2129633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- J. L. Chukwuneke
- Department of Mechanical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - J. E. Sinebe
- Department of Mechanical Engineering, Delta State University, Oleh, Nigeria
| | - H. O. Orugba
- Department of Chemical Engineering, Delta State University, Oleh, Nigeria
| | - H. C. Olisakwe
- Department of Mechanical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - C. Ajike
- Department of Mechanical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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7
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Kaur R, Kumar A, Biswas B, Krishna BB, Bhaskar T. Investigations into pyrolytic behaviour of spent citronella waste: Slow and flash pyrolysis study. BIORESOURCE TECHNOLOGY 2022; 366:128202. [PMID: 36326550 DOI: 10.1016/j.biortech.2022.128202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Slow and flash pyrolysis of spent citronella biomass has been studied at varying temperatures. It is aimed to understand the pyrolytic behavior of spent citronella aromatic biomass with temperatures. Maximum bio-oil yield of 37.7 wt% was obtained with conversion of 71 wt% at 450 °C through slow pyrolysis. GC/MS, 1H NMR, and FTIR analysis of pyrolytic liquid (bio-oil) was done which indicated various functionalities with maximum area% for phenolics. However, flash pyrolysis at high heating rate of 20 °C/ms resulted into maximum area% for carbonyls at all temperatures. In addition, an increasing trend for phenolics with temperature was also observed. The properties of obtained biochar are analysed by CHNS, FTIR, TOC, XRD, and SEM, which confirmed the significant decomposition of biomass constituents. The characterisation results revealed the potential usage of pyrolytic liquid i.e., bio-oil and pyrolytic residue i.e., biochar for different applications.
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Affiliation(s)
- Ramandeep Kaur
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Avnish Kumar
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | | | - Bhavya B Krishna
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - Thallada Bhaskar
- Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Yaseen M, Khattak MAK, Khan A, Khan MS, Ahmad M, Shah Z, Khattak R, Bibi S. Physiсo-Chemical Investigations on the Catalytic Production of Biofuel from Algal Biomass. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422140308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Law XN, Cheah WY, Chew KW, Ibrahim MF, Park YK, Ho SH, Show PL. Microalgal-based biochar in wastewater remediation: Its synthesis, characterization and applications. ENVIRONMENTAL RESEARCH 2022; 204:111966. [PMID: 34450156 DOI: 10.1016/j.envres.2021.111966] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/10/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
Microalgae are drawing attentions among researchers for their biorefinery use or value-added products. The high production rate of biomasses produced are attractive for conversion into volatile biochar. Torrefaction, pyrolysis and hydrothermal carbonization are the recommended thermochemical conversion techniques that could produce microalgal-based biochar with desirable physiochemical properties such as high surface area and pore volume, abundant surface functional groups, as well as functionality such as high adsorption capacity. The characterizations of the biochar significantly influence the mechanisms in adsorption of pollutants from wastewaters. Specific adsorption of the organic and inorganic pollutants from the effluent are reviewed to examine the adsorption capacity and efficiency of biochar derived from different microalgae species. Last but not least, future remarks over the challenges and improvements are discussed accordingly. Overall, this review would discuss the synthesis, characterization and application of the microalgal-based biochar in wastewater.
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Affiliation(s)
- Xin Ni Law
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; School of Bioscience, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Wai Yan Cheah
- Department of Environmental Health, Faculty of Health Sciences, MAHSA University, 42610, Jenjarom, Selangor, Malaysia.
| | - Kit Wayne Chew
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia.
| | - Mohamad Faizal Ibrahim
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, 43400, Selangor Darul Ehsan, Malaysia
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia.
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Xia S, Song Z, Jeyakumar P, Bolan N, Wang H. Characteristics and applications of biochar for remediating Cr(VI)-contaminated soils and wastewater. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:1543-1567. [PMID: 31673917 DOI: 10.1007/s10653-019-00445-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Chromium (Cr) is a common environmental contaminant due to industrial processes and anthropogenic activities such as mining of chrome ore, electroplating, timber treatment, leather tanning, fertilizer and pesticide, etc. Cr exists mainly in both hexavalent [Cr(VI)] and trivalent [Cr(III)] form, being Cr(VI) with non-degradability and potential to be hidden, thereby affecting surrounding environment and being toxic to human health. Therefore, researches on remediation of Cr pollution in the environment have received much attention. Biochar is a low-cost adsorbent, which has been identified as a suitable material for Cr(VI) immobilization and removal from soil and wastewater. This review incorporates existing literature to provide a detailed examination into the (1) Cr chemistry, the source and current status of Cr pollution, and Cr toxicity and health; (2) feedstock and characterization of biochar; (3) processes and mechanisms of immobilization and removal of Cr by biochar, including oxidation-reduction, electrostatic interactions, complexation, ion exchange, and precipitation; (4) applications of biochar for Cr(VI) remediation and the modification of biochar to improve its performance; (5) factors affecting removal efficiency of Cr(VI) with respect to its physico-chemical conditions, including pH, temperature, initial concentration, reaction time, biochar characteristics, and coexisting contaminants. Finally, we identify current issues, challenges, and put forward recommendations as well as proposed directions for future research. This review provides a thorough understanding of using biochar as an emerging biomaterial adsorbent in Cr(VI)-contaminated soils and wastewater.
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Affiliation(s)
- Shaopan Xia
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Zhaoliang Song
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China.
| | - Paramsothy Jeyakumar
- Environmental Sciences, School of Agriculture and Environment, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand
| | - Nanthi Bolan
- Global Centre for Environmental Remediation, University of Newcastle, Callaghan, NSW, Australia
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong, China.
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang, China.
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11
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Veas R, Rojas-Pirela M, Castillo C, Olea-Azar C, Moncada M, Ulloa P, Rojas V, Kemmerling U. Microalgae extracts: Potential anti-Trypanosoma cruzi agents? Biomed Pharmacother 2020; 127:110178. [PMID: 32371317 DOI: 10.1016/j.biopha.2020.110178] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/08/2020] [Accepted: 04/17/2020] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Chagas disease, caused by the protozoan parasiteTrypanosoma cruzi, has no effective treatment available. On the other hand, microalgae are aquatic organisms that constitute an interesting reservoir of biologically active metabolites. Moreover, some species of green and red algae present anti-protozoan activity. Our aim was to study the antiparasitic effects of aqueous, methanolic and ethanolic extracts from different microalgae. METHODS AND RESULTS Our results show that the methanolic extracts of S. obliquus and T. suecica as well as the ethanolic extracts of C. reinhardtii and T. suecica present trypanocidal activity on the infective extracellular trypomastigotes and intracellular amastigotes. In addition, the ethanolic extract of C. reinhardtii potentiates the activity of the conventional antichagasic drug nifurtimox. In order to identify some potential compounds with trypanocidal activity, we performed a phytochemical screening analyzing the presence of phenolic compounds, pigments and terpenoids. CONCLUSION The different microalgae extracts, particularly the ethanolic extract ofC. reinhardtii, are promising potential candidates for the development of future natural antichagasic drugs.
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Affiliation(s)
- Rhonda Veas
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile
| | - Maura Rojas-Pirela
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile
| | - Christian Castillo
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile
| | - Claudio Olea-Azar
- Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago de Chile 8380494, Chile
| | - Mauricio Moncada
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile; Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago de Chile 8380494, Chile
| | - Pablo Ulloa
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; Instituto de Investigaciones Agropecuarias, INIA-La Platina, Santiago de Chile 8831314, Chile
| | - Verónica Rojas
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile.
| | - Ulrike Kemmerling
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile.
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Cheng F, Jarvis JM, Yu J, Jena U, Nirmalakhandan N, Schaub TM, Brewer CE. Bio-crude oil from hydrothermal liquefaction of wastewater microalgae in a pilot-scale continuous flow reactor. BIORESOURCE TECHNOLOGY 2019; 294:122184. [PMID: 31683452 DOI: 10.1016/j.biortech.2019.122184] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/18/2019] [Accepted: 09/20/2019] [Indexed: 06/10/2023]
Abstract
To explore the feasibility of scaling up hydrothermal liquefaction (HTL) of algal biomass, a pilot-scale continuous flow reactor (CFR) was operated to produce bio-crude oil from algal biomass cultivated in urban wastewater. The CFR system ran algal slurry (5 wt.% solids loading) at 350 °C and 17 MPa for 4 h without any clogging issues. Bio-crude oil chemistry was characterized by high-resolution Fourier transform mass spectroscopy (FT-MS), proton nuclear magnetic resonance spectroscopy (1H NMR), bomb calorimetry, and elemental analysis. Bio-crude oil yield of 28.1 wt% was obtained with higher heating values of 38-39 MJ/kg. The quality of light bio-crude oil produced from the CFR system was comparable in terms of molecular structures to bio-crude oil produced in a batch reactor.
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Affiliation(s)
- Feng Cheng
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA
| | - Jacqueline M Jarvis
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Jiuling Yu
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA
| | - Umakanta Jena
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA
| | - Nagamany Nirmalakhandan
- Department of Civil Engineering, New Mexico State University, P.O. Box 30001 MSC 3CE, Las Cruces, NM 88003, USA
| | - Tanner M Schaub
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Catherine E Brewer
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA.
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Koyande AK, Show PL, Guo R, Tang B, Ogino C, Chang JS. Bio-processing of algal bio-refinery: a review on current advances and future perspectives. Bioengineered 2019; 10:574-592. [PMID: 31668124 PMCID: PMC6844430 DOI: 10.1080/21655979.2019.1679697] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/16/2019] [Accepted: 10/03/2019] [Indexed: 02/08/2023] Open
Abstract
Microalgae biomass contains various useful bio-active components. Microalgae derived biodiesel has been researched for almost two decades. However, sole biodiesel extraction from microalgae is time-consuming and is not economically feasible due to competitive fossil fuel prices. Microalgae also contains proteins and carbohydrates in abundance. Microalgae are likewise utilized to extract high-value products such as pigments, anti-oxidants and long-chain polyunsaturated fatty acids which are useful in cosmetic, pharmaceutical and nutraceutical industry. These compounds can be extracted simultaneously or sequentially after biodiesel extraction to reduce the total expenditure involved in the process. This approach of bio-refinery is necessary to promote microalgae in the commercial market. Researchers have been keen on utilizing the bio-refinery approach to exploit the valuable components encased by microalgae. Apart from all the beneficial components housed by microalgae, they also help in reducing the anthropogenic CO2 levels of the atmosphere while utilizing saline or wastewater. These benefits enable microalgae as a potential source for bio-refinery approach. Although life-cycle analysis and economic assessment do not favor the use of microalgae biomass feedstock to produce biofuel and co-products with the existing techniques, this review still aims to highlight the beneficial components of microalgae and their importance to humans. In addition, this article also focuses on current and future aspects of improving the feasibility of bio-processing for microalgae bio-refinery.
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Affiliation(s)
- Apurav Krishna Koyande
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Selangor Darul Ehsan, Malaysia
| | - Pau-Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Selangor Darul Ehsan, Malaysia
| | - Ruixin Guo
- School of Science, China Pharmaceutical University, Nanjing, China
| | - Bencan Tang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, Ningbo, China
| | - Chiaki Ogino
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Kobe, Japan
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung, Taiwan
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
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Abstract
The current fossil fuel reserves are not sufficient to meet the increasing demand and very soon will become exhausted. Pollution, global warming, and inflated oil prices have led the quest for renewable energy sources. Algal biofuels represent a potential source of renewable energy. Algae, as the third generation feedstock, are suitable for biodiesel and bioethanol production due to their quick growth, excellent biomass yield, and high lipid and carbohydrate contents. With their huge potential, algae are expected to surpass the first and second generation feedstocks. Only a few thousand algal species have been investigated as possible biofuel sources, and none of them was ideal. This review summarizes the current status of algal biofuels, important steps of algal biofuel production, and the major commercial production challenges.
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Cataldo S, Chiodo V, Crea F, Maisano S, Milea D, Pettignano A. Biochar from byproduct to high value added material – A new adsorbent for toxic metal ions removal from aqueous solutions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wang H, Wang X, Cui Y, Xue Z, Ba Y. Slow pyrolysis polygeneration of bamboo (Phyllostachys pubescens): Product yield prediction and biochar formation mechanism. BIORESOURCE TECHNOLOGY 2018; 263:444-449. [PMID: 29772506 DOI: 10.1016/j.biortech.2018.05.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 05/09/2018] [Accepted: 05/10/2018] [Indexed: 06/08/2023]
Abstract
Slow pyrolysis of bamboo was conducted at 400-600 °C and pyrolysis products were characterized with FTIR, BET, XRD, SEM, EDS and GC to establish a pyrolysis product yield prediction model and biochar formation mechanism. Pyrolysis biochar yield was predicted based on content of cellulose, hemicellulose and lignin in biomass with their carbonization index of 0.20, 0.35 and 0.45. The formation mechanism of porous structure in pyrolysis biochar was established based on its physicochemical property evolution and emission characteristics of pyrolysis gas. The main components (cellulose, hemicellulose and lignin) had different pyrolysis or chemical reaction pathways to biochar. Lignin had higher aromatic structure, which resulted higher biochar yield. It was the main biochar precursor during biomass pyrolysis. Cellulose was likely to improve porous structure of pyrolysis biochar due to its high mass loss percentage. Higher pyrolysis temperatures (600 °C) promoted inter- and intra-molecular condensation reactions and aromaticity in biochar.
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Affiliation(s)
- Huihui Wang
- Institute of Energy Conservation and Low Carbon Technology, Shenwu Technology Group Corp, Shenniu Road 18, Changping District, Beijing, PR China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, PR China
| | - Xin Wang
- Institute of Energy Conservation and Low Carbon Technology, Shenwu Technology Group Corp, Shenniu Road 18, Changping District, Beijing, PR China.
| | - Yanshan Cui
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, PR China
| | - Zhongcai Xue
- Institute of Energy Conservation and Low Carbon Technology, Shenwu Technology Group Corp, Shenniu Road 18, Changping District, Beijing, PR China
| | - Yuxin Ba
- Institute of Energy Conservation and Low Carbon Technology, Shenwu Technology Group Corp, Shenniu Road 18, Changping District, Beijing, PR China
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Lababpour A. Continuous Hydrothermal Liquefaction for Biofuel and Biocrude Production from Microalgal Feedstock. CHEMBIOENG REVIEWS 2018. [DOI: 10.1002/cben.201700017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Abdolmajid Lababpour
- Shohadaye Hoveizeh University of Technology; Faculty of Engineering; P.O. Box 64418-78986 Susangerd Iran
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Bach QV, Chen WH. Pyrolysis characteristics and kinetics of microalgae via thermogravimetric analysis (TGA): A state-of-the-art review. BIORESOURCE TECHNOLOGY 2017; 246:88-100. [PMID: 28709883 DOI: 10.1016/j.biortech.2017.06.087] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 06/15/2017] [Accepted: 06/16/2017] [Indexed: 05/18/2023]
Abstract
Pyrolysis is a promising route for biofuels production from microalgae at moderate temperatures (400-600°C) in an inert atmosphere. Depending on the operating conditions, pyrolysis can produce biochar and/or bio-oil. In practice, knowledge for thermal decomposition characteristics and kinetics of microalgae during pyrolysis is essential for pyrolyzer design and pyrolysis optimization. Recently, the pyrolysis kinetics of microalgae has become a crucial topic and received increasing interest from researchers. Thermogravimetric analysis (TGA) has been employed as a proven technique for studying microalgae pyrolysis in a kinetic control regime. In addition, a number of kinetic models have been applied to process the TGA data for kinetic evaluation and parameters estimation. This paper aims to provide a state-of-the art review on recent research activities in pyrolysis characteristics and kinetics of various microalgae. Common kinetic models predicting the thermal degradation of microalgae are examined and their pros and cons are illustrated.
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Affiliation(s)
- Quang-Vu Bach
- Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan.
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AYSU TEVFİK. PYROLYSIS OF ISOCHRYSIS MICROALGAE WITH METAL OXIDE CATALYSTS FOR BIO-OIL PRODUCTION. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2016. [DOI: 10.18596/jotcsa.287338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Laghari M, Naidu R, Xiao B, Hu Z, Mirjat MS, Hu M, Kandhro MN, Chen Z, Guo D, Jogi Q, Abudi ZN, Fazal S. Recent developments in biochar as an effective tool for agricultural soil management: a review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:4840-4849. [PMID: 27116042 DOI: 10.1002/jsfa.7753] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 04/03/2016] [Accepted: 04/05/2016] [Indexed: 05/16/2023]
Abstract
In recent years biochar has been demonstrated to be a useful amendment to sequester carbon and reduce greenhouse gas emission from the soil to the atmosphere. Hence it can help to mitigate global environment change. Some studies have shown that biochar addition to agricultural soils increases crop production. The mechanisms involved are: increased soil aeration and water-holding capacity, enhanced microbial activity and plant nutrient status in soil, and alteration of some important soil chemical properties. This review provides an in-depth consideration of the production, characterization and agricultural use of different biochars. Biochar is a complex organic material and its characteristics vary with production conditions and the feedstock used. The agronomic benefits of biochar solely depend upon the use of particular types of biochar with proper field application rate under appropriate soil types and conditions. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Mahmood Laghari
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
- Department of Energy and Environment, Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRCCARE), University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Bo Xiao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
| | - Zhiquan Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China.
| | - Muhammad Saffar Mirjat
- Department of Irrigation and Drainage, Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Mian Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
| | - Muhammad Nawaz Kandhro
- Department of Agronomy, Faculty of Crop Production, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Zhihua Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
| | - Dabin Guo
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
| | - Qamardudin Jogi
- Department of Agronomy, Faculty of Crop Production, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Zaidun Naji Abudi
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
- Al-Mustansiryiah University, College of Engineering, Baghdad, Iraq
| | - Saima Fazal
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430073, People's Republic of China
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Maurya R, Ghosh T, Saravaia H, Paliwal C, Ghosh A, Mishra S. Non-isothermal pyrolysis of de-oiled microalgal biomass: Kinetics and evolved gas analysis. BIORESOURCE TECHNOLOGY 2016; 221:251-261. [PMID: 27643733 DOI: 10.1016/j.biortech.2016.09.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 06/06/2023]
Abstract
Non-isothermal (β=5, 10, 20, 35°C/min) pyrolysis of de-oiled microalgal biomass (DMB) of Chlorella variabilis was investigated by TGA-MS (30-900°C, Argon atmosphere) to understand thermal decomposition and evolved gas analysis (EGA). The results showed that three-stage thermal decomposition and three volatilization zone (100-400°C, 400-550°C and 600-750°C) of organic matters during pyrolysis. The highest rate of weight-loss is 8.91%/min at 302°C for 35°C/min heating-rate. Kinetics of pyrolysis were investigated by iso-conversional (KAS, FWO) and model-fitting (Coats-Redfern) method. For Zone-1and3, similar activation energy (Ea) is found in between KAS (α=0.4), FWO (α=0.4) and Avrami-Erofe'ev (n=4) model. Using the best-fitted kinetic model Avrami-Erofe'ev (n=4), Ea values (R2=>0.96) are 171.12 (Zone-1), 404.65 (Zone-2) and 691.42kJ/mol (Zone-3). EGA indicate the abundance of most gases observed consequently between 200-300°C and 400-500°C. The pyrolysis of DMB involved multi-step reaction mechanisms for solid-state reactions having different Ea values.
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Affiliation(s)
- Rahulkumar Maurya
- Division of Salt & Marine Chemicals, CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India; Academy of Scientific & Innovative Research (AcSIR), CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India
| | - Tonmoy Ghosh
- Division of Salt & Marine Chemicals, CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India; Academy of Scientific & Innovative Research (AcSIR), CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India
| | - Hitesh Saravaia
- Academy of Scientific & Innovative Research (AcSIR), CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India; Analytical Division and Centralized Instrument Facility, CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India
| | - Chetan Paliwal
- Division of Salt & Marine Chemicals, CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India; Academy of Scientific & Innovative Research (AcSIR), CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India
| | - Arup Ghosh
- Academy of Scientific & Innovative Research (AcSIR), CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India; Division of Plant Omics, CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India
| | - Sandhya Mishra
- Division of Salt & Marine Chemicals, CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India; Academy of Scientific & Innovative Research (AcSIR), CSIR - Central Salt & Marine Chemicals Research Institute, G B Marg, Bhavnagar 364002, Gujarat, India.
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Zaafouri K, Ben Hassen Trabelsi A, Krichah S, Ouerghi A, Aydi A, Claumann CA, André Wüst Z, Naoui S, Bergaoui L, Hamdi M. Enhancement of biofuels production by means of co-pyrolysis of Posidonia oceanica (L.) and frying oil wastes: Experimental study and process modeling. BIORESOURCE TECHNOLOGY 2016; 207:387-398. [PMID: 26897417 DOI: 10.1016/j.biortech.2016.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/31/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
Energy recovery from lignocellulosic solid marine wastes, Posidonia oceanica wastes (POW) with slow pyrolysis responds to the growing trend of alternative energies as well as waste management. Physicochemical, thermogravimetric (TG/DTG) and spectroscopic (FTIR) characterizations of POW were performed. POW were first converted by pyrolysis at different temperatures (450°C, 500°C, 550°C and 600°C) using a fixed-bed reactor. The obtained products (bio-oil, syngas and bio char) were analyzed. Since the bio-oil yield obtained from POW pyrolysis is low (2wt.%), waste frying oil (WFO) was added as a co-substrate in order to improve of biofuels production. The co-pyrolysis gave a better yield of liquid organic fraction (37wt.%) as well as syngas (CH4,H2…) with a calorific value around 20MJ/kg. The stoichiometric models of both pyrolysis and co-pyrolysis reactions were performed according to the biomass formula: CαHβOγNδSε. The thermal kinetic decomposition of solids was validated through linearized Arrhenius model.
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Affiliation(s)
- Kaouther Zaafouri
- Laboratory of Microbial Ecology and Technology, LETMi-INSAT, The National Institute of Applied Sciences and Technology INSAT, Carthage University, 2 Boulevard de la Terre, B.P 676, 1080 Tunis, Tunisia
| | - Aida Ben Hassen Trabelsi
- Research and Technology Center of Energy CRTEn, Borj-CedriaTechnopark, B.P N°95, 2050 Hammam Lif, Tunisia
| | - Samah Krichah
- Laboratory of Microbial Ecology and Technology, LETMi-INSAT, The National Institute of Applied Sciences and Technology INSAT, Carthage University, 2 Boulevard de la Terre, B.P 676, 1080 Tunis, Tunisia; Research and Technology Center of Energy CRTEn, Borj-CedriaTechnopark, B.P N°95, 2050 Hammam Lif, Tunisia
| | - Aymen Ouerghi
- Laboratory of Microbial Ecology and Technology, LETMi-INSAT, The National Institute of Applied Sciences and Technology INSAT, Carthage University, 2 Boulevard de la Terre, B.P 676, 1080 Tunis, Tunisia; Research and Technology Center of Energy CRTEn, Borj-CedriaTechnopark, B.P N°95, 2050 Hammam Lif, Tunisia
| | - Abdelkarim Aydi
- Department of Chemical and Materials Engineering, College of Engineering, Northern Border University, P.O. Box 1321, Arar, Saudi Arabia; Laboratory of Materials Molecules and Applications, Preparatory Institute for Scientific and Technical Studies, Carthage University, B.P 51, La Marsa, 2075 Tunis, Tunisia
| | - Carlos Alberto Claumann
- Departments of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, 88010-970, Brazil
| | - Zibetti André Wüst
- Departments of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, 88010-970, Brazil
| | - Silm Naoui
- Research and Technology Center of Energy CRTEn, Borj-CedriaTechnopark, B.P N°95, 2050 Hammam Lif, Tunisia
| | - Latifa Bergaoui
- Laboratory of Materials Chemistry and Catalysis, Faculty of Sciences of Tunis, El Manar University, Tunis, Tunisia
| | - Moktar Hamdi
- Laboratory of Microbial Ecology and Technology, LETMi-INSAT, The National Institute of Applied Sciences and Technology INSAT, Carthage University, 2 Boulevard de la Terre, B.P 676, 1080 Tunis, Tunisia
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Cascading microalgae biorefinery: Fast pyrolysis of Dunaliella tertiolecta lipid extracted-residue. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.06.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Seth JR, Wangikar PP. Challenges and opportunities for microalgae-mediated CO2 capture and biorefinery. Biotechnol Bioeng 2015; 112:1281-96. [PMID: 25899427 DOI: 10.1002/bit.25619] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 03/31/2015] [Accepted: 04/07/2015] [Indexed: 11/10/2022]
Abstract
Aquacultures of microalgae are frontrunners for photosynthetic capture of CO2 from flue gases. Expedient implementation mandates coupling of microalgal CO2 capture with synthesis of fuels and organic products, so as to derive value from biomass. An integrated biorefinery complex houses a biomass growth and harvesting area and a refining zone for conversion to product(s) and separation to desired purity levels. As growth and downstream options require energy and incur loss of carbon, put together, the loop must be energy positive, carbon negative, or add substantial value. Feasibility studies can, thus, aid the choice from among the rapidly evolving technological options, many of which are still in the early phases of development. We summarize basic engineering calculations for the key steps of a biorefining loop where flue gases from a thermal power station are captured using microalgal biomass along with subsequent options for conversion to fuel or value added products. An assimilation of findings from recent laboratory and pilot-scale experiments and life cycle analysis (LCA) studies is presented as carbon and energy yields for growth and harvesting of microalgal biomass and downstream options. Of the biorefining options, conversion to the widely studied biofuel, ethanol, and manufacture of the platform chemical, succinic acid are presented. Both processes yield specific products and do not demand high-energy input but entail 60-70% carbon loss through fermentative respiration. Thermochemical conversions, on the other hand, have smaller carbon and energy losses but yield a mixture of products.
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Affiliation(s)
- Jyoti R Seth
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, India.,DBT-Pan IIT Center for Bioenergy, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Pramod P Wangikar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, India. .,DBT-Pan IIT Center for Bioenergy, Indian Institute of Technology Bombay, Powai, Mumbai, India. .,Wadhwani Research Center for Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.
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28
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Wang X, Zhao B, Tang X, Yang X. Comparison of direct and indirect pyrolysis of micro-algae Isochrysis. BIORESOURCE TECHNOLOGY 2015; 179:58-62. [PMID: 25528604 DOI: 10.1016/j.biortech.2014.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 11/04/2014] [Accepted: 11/05/2014] [Indexed: 05/11/2023]
Abstract
Yield and composition of pyrolysis oil in direct and indirect pyrolysis process were investigated which indicated that pyrolysis of defatted microalgae provided a potential way to convert protein and carbohydrate to biofuels. Defatted microalgae pyrolysis with lipid extraction has higher total oil yield than only microalgae direct pyrolysis. There was an increase for N-heterocyclic compounds and phenols and a decrease for hydrocarbons in defatted microalgae pyrolysis oil. There is an apparent decrease from C12 to C16 and nearly no carbon distribution from C17 to C22 for defatted microalgae pyrolysis. Based on composition of pyrolysis feedstock, pyrolysis oil yields were simulated by Compounds Biofuel Model and their accuracy was less than ±4.4%. Considering total oil yield and characteristics, microalgae pyrolysis after lipid extraction process is a promising way for microalgae utilization.
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Affiliation(s)
- Xin Wang
- School of Energy and Power Engineering, Energy and Environment International Center, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, PR China
| | - Bingwei Zhao
- School of Energy and Power Engineering, Energy and Environment International Center, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, PR China
| | - Xiaohan Tang
- School of Energy and Power Engineering, Energy and Environment International Center, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, PR China
| | - Xiaoyi Yang
- School of Energy and Power Engineering, Energy and Environment International Center, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, PR China.
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29
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Sarkar O, Agarwal M, Naresh Kumar A, Venkata Mohan S. Retrofitting hetrotrophically cultivated algae biomass as pyrolytic feedstock for biogas, bio-char and bio-oil production encompassing biorefinery. BIORESOURCE TECHNOLOGY 2015; 178:132-138. [PMID: 25446787 DOI: 10.1016/j.biortech.2014.09.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/14/2014] [Accepted: 09/15/2014] [Indexed: 06/04/2023]
Abstract
Algal biomass grown hetrotrophically in domestic wastewater was evaluated as pyrolytic feedstock for harnessing biogas, bio-oil and bio-char. Freshly harvested microalgae (MA) and lipid extracted microalgae (LEMA) were pyrolysed in packed bed reactor in the presence and absence of sand as additive. MA (without sand additive) depicted higher biogas (420 ml/g; 800 °C; 3 h) and bio-oil (0.70 ml/g; 500 °C; 3 h). Sand addition enhanced biogas production (210 ml/g; 600 °C; 2 h) in LEMA operation. The composition of bio-gas and bio-oil was found to depend on the nature of feedstock as well as the process conditions viz., pyrolytic-temperature, retention time and presence of additive. Sand additive improved the H2 composition while pyrolytic temperature increment caused a decline in CO2 fraction. Bio-char productivity increased with increasing temperature specifically with LEMA. Integration of thermo-chemical process with microalgae cultivation showed to yield multiple resources and accounts for environmental sustainability in the bio-refinery framework.
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Affiliation(s)
- Omprakash Sarkar
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - Manu Agarwal
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - A Naresh Kumar
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
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30
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Qian Y, Zhang J, Wang J. Pressurized pyrolysis of rice husk in an inert gas sweeping fixed-bed reactor with a focus on bio-oil deoxygenation. BIORESOURCE TECHNOLOGY 2014; 174:95-102. [PMID: 25463787 DOI: 10.1016/j.biortech.2014.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/01/2014] [Accepted: 10/04/2014] [Indexed: 06/04/2023]
Abstract
The pyrolysis of rice husk was conducted in a fixed-bed reactor with a sweeping nitrogen gas to investigate the effects of pressure on the pyrolytic behaviors. The release rates of main gases during the pyrolysis, the distributions of four products (char, bio-oil, water and gas), the elemental compositions of char, bio-oil and gas, and the typical compounds in bio-oil were determined. It was found that the elevation of pressure from 0.1MPa to 5.0MPa facilitated the dehydration and decarboxylation of bio-oil, and the bio-oils obtained under the elevated pressures had significantly less oxygen and higher calorific value than those obtained under atmospheric pressure. The former bio-oils embraced more acetic acid, phenols and guaiacols. The elevation of pressure increased the formation of CH4 partially via the gas-phase reactions. An attempt is made in this study to clarify "the pure pressure effect" and "the combined effect with residence time".
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Affiliation(s)
- Yangyang Qian
- Department of Chemical Engineering for Energy, Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, 130#, Meilong Road, Shanghai 200237, PR China
| | - Jie Zhang
- Department of Chemical Engineering for Energy, Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, 130#, Meilong Road, Shanghai 200237, PR China
| | - Jie Wang
- Department of Chemical Engineering for Energy, Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, 130#, Meilong Road, Shanghai 200237, PR China.
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31
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Kassim MA, Kirtania K, De La Cruz D, Cura N, Srivatsa SC, Bhattacharya S. Thermogravimetric analysis and kinetic characterization of lipid-extracted Tetraselmis suecica and Chlorella sp. ALGAL RES 2014. [DOI: 10.1016/j.algal.2014.08.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Ben Hassen-Trabelsi A, Kraiem T, Naoui S, Belayouni H. Pyrolysis of waste animal fats in a fixed-bed reactor: production and characterization of bio-oil and bio-char. WASTE MANAGEMENT (NEW YORK, N.Y.) 2014; 34:210-218. [PMID: 24129214 DOI: 10.1016/j.wasman.2013.09.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 08/06/2013] [Accepted: 09/18/2013] [Indexed: 06/02/2023]
Abstract
Several animal (lamb, poultry and swine) fatty wastes were pyrolyzed under nitrogen, in a laboratory scale fixed-bed reactor and the main products (liquid bio-oil, solid bio-char and syngas) were obtained. The purpose of this study is to produce and characterize bio-oil and bio-char obtained from pyrolysis of animal fatty wastes. The maximum production of bio-oil was achieved at a pyrolysis temperature of 500 °C and a heating rate of 5 °C/min. The chemical (GC-MS analyses) and spectroscopic analyses (FTIR analyses) of bio-oil showed that it is a complex mixture consisting of different classes of organic compounds, i.e., hydrocarbons (alkanes, alkenes, cyclic compounds...etc.), carboxylic acids, aldehydes, ketones, esters,...etc. According to fuel properties, produced bio-oils showed good properties, suitable for its use as an engine fuel or as a potential source for synthetic fuels and chemical feedstock. Obtained bio-chars had low carbon content and high ash content which make them unattractive for as renewable source energy.
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Affiliation(s)
- A Ben Hassen-Trabelsi
- Centre de Recherche et de Technologies de l'Energie (CRTEn), Technopôle Borj-Cédria, B.P 95, 2050, Hammam Lif, Tunisia.
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33
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Ramsurn H, Gupta RB. Deoxy-liquefaction of switchgrass in supercritical water with calcium formate as an in-situ hydrogen donor. BIORESOURCE TECHNOLOGY 2013; 143:575-583. [PMID: 23835262 DOI: 10.1016/j.biortech.2013.06.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 06/02/2023]
Abstract
Switchgrass was liquefied in supercritical water (SCW) using Ca(HCOO)2 as an in-situ source of hydrogen to enhance deoxygenation and the quality of the biocrude obtained. In SCW, Ca(HCOO)2 produces hydrogen via decomposition and hydrolysis reactions, and simultaneously switchgrass hydrolyzes to form oxygenated hydrocarbon compounds. Because of the close proximity of the newly-formed hydrogen and active hydrocarbons, hydrodeoxygenation occurred whereby some of the oxygenated compounds were upgraded by the removal of oxygen in the form of water. The analysis of the so-formed biocrude revealed the presence of benzene, polyaromatic hydrocarbons, and alkyl phenolics. The benzene formation is attributed to the hydrogenation of phenols but also due to the Diels-Alder alkene addition, followed by dehydrogenation. The addition of Ca(HCOO)2 doubled the yield of biocrude (10 wt%) and increased the heating value from 28 to 34 kJ/g. Formic acid amount increased in the aqueous biocrude due to the enhanced decomposition of xylose and glucose.
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Affiliation(s)
- Hema Ramsurn
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849-5127, USA
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34
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Khoo HH, Koh CY, Shaik MS, Sharratt PN. Bioenergy co-products derived from microalgae biomass via thermochemical conversion--life cycle energy balances and CO2 emissions. BIORESOURCE TECHNOLOGY 2013; 143:298-307. [PMID: 23810951 DOI: 10.1016/j.biortech.2013.06.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/31/2013] [Accepted: 06/03/2013] [Indexed: 06/02/2023]
Abstract
An investigation of the potential to efficiently convert lipid-depleted residual microalgae biomass using thermochemical (gasification at 850 °C, pyrolysis at 550 °C, and torrefaction at 300 °C) processes to produce bioenergy derivatives was made. Energy indicators are established to account for the amount of energy inputs that have to be supplied to the system in order to gain 1 MJ of bio-energy output. The paper seeks to address the difference between net energy input-output balances based on a life cycle approach, from "cradle-to-bioenergy co-products", vs. thermochemical processes alone. The experimental results showed the lowest results of Net Energy Balances (NEB) to be 0.57 MJ/MJ bio-oil via pyrolysis, and highest, 6.48 MJ/MJ for gas derived via torrefaction. With the complete life cycle process chain factored in, the energy balances of NEBLCA increased to 1.67 MJ/MJ (bio-oil) and 7.01 MJ/MJ (gas). Energy efficiencies and the life cycle CO2 emissions were also calculated.
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Affiliation(s)
- H H Khoo
- Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, 627833 Singapore.
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35
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Beneroso D, Bermúdez JM, Arenillas A, Menéndez JA. Microwave pyrolysis of microalgae for high syngas production. BIORESOURCE TECHNOLOGY 2013; 144:240-246. [PMID: 23871926 DOI: 10.1016/j.biortech.2013.06.102] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 06/23/2013] [Accepted: 06/25/2013] [Indexed: 06/02/2023]
Abstract
The microwave induced pyrolysis of the microalgae Scenedesmus almeriensis and its extraction residue was carried out at 400 and 800°C. The results show that it is possible to obtain a gas fraction with a high content (c.a. 50vol.%) in H2 from both materials, regardless of the pyrolysis temperature. Furthermore, an outstanding syngas production and high gas yields were achieved. The maximum syngas concentration obtained was c.a. 94 vol.%, in the case of the pyrolysis of the residue at 800°C, indicating that the production of CO2 and light hydrocarbons was minimized. The same experiments were carried out in a conventional electric furnace in order to compare the products and yields obtained. It was found that microwave induced pyrolysis gives rise not only to higher gas yields but also to greater syngas and H2 production.
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Affiliation(s)
- D Beneroso
- Instituto Nacional del Carbón, CSIC, Oviedo, Spain
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36
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Life cycle assessment of a microalgae biomass cultivation, bio-oil extraction and pyrolysis processing regime. ALGAL RES 2013. [DOI: 10.1016/j.algal.2013.04.004] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Sahiner N, Karakoyun N, Alpaslan D, Aktas N. Biochar-Embedded Soft Hydrogel and Their Use in Ag Nanoparticle Preparation and Reduction of 4-Nitro Phenol. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2013.769163] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Castine SA, Paul NA, Magnusson M, Bird MI, de Nys R. Algal bioproducts derived from suspended solids in intensive land-based aquaculture. BIORESOURCE TECHNOLOGY 2013; 131:113-120. [PMID: 23340108 DOI: 10.1016/j.biortech.2012.12.094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 12/12/2012] [Accepted: 12/12/2012] [Indexed: 06/01/2023]
Abstract
Land-based aquaculture produces suspended solids in culture pond and settlement pond waters that could be harvested as a bioresource. Suspended solids were quantified, characterised and harvested from these two sources to assess their suitability for conversion to bioproducts. The suspended solids of settlement ponds were less concentrated (87.6±24.7mgL(-1)) than those of culture ponds (131.8±8.8mgL(-1)), but had a higher concentration of microalgae (27.5±4.0%) and consequently higher particulate organic carbon (24.8±4.7%) and particulate nitrogen (4.0±0.8%). The microalgal community also differed between sources with a higher concentration of fatty acids in the biomass from settlement ponds. Consequently, biochar produced from biomass harvested from settlement ponds was higher in organic carbon and nitrogen, with a lower cation exchange capacity. In conclusion, we characterised a renewable and potentially valuable bioresource for algal bioproducts derived from suspended solids in intensive land-based aquaculture.
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Affiliation(s)
- Sarah A Castine
- AIMS@JCU, Australian Institute of Marine Science and School of Marine and Tropical Biology & Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Queensland, Australia.
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39
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Vardon DR, Sharma BK, Blazina GV, Rajagopalan K, Strathmann TJ. Thermochemical conversion of raw and defatted algal biomass via hydrothermal liquefaction and slow pyrolysis. BIORESOURCE TECHNOLOGY 2012; 109:178-87. [PMID: 22285293 DOI: 10.1016/j.biortech.2012.01.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 01/02/2012] [Accepted: 01/04/2012] [Indexed: 05/09/2023]
Abstract
Thermochemical conversion is a promising route for recovering energy from algal biomass. Two thermochemical processes, hydrothermal liquefaction (HTL: 300 °C and 10-12 MPa) and slow pyrolysis (heated to 450 °C at a rate of 50 °C/min), were used to produce bio-oils from Scenedesmus (raw and defatted) and Spirulina biomass that were compared against Illinois shale oil. Although both thermochemical conversion routes produced energy dense bio-oil (35-37 MJ/kg) that approached shale oil (41 MJ/kg), bio-oil yields (24-45%) and physico-chemical characteristics were highly influenced by conversion route and feedstock selection. Sharp differences were observed in the mean bio-oil molecular weight (pyrolysis 280-360 Da; HTL 700-1330 Da) and the percentage of low boiling compounds (bp<400 °C) (pyrolysis 62-66%; HTL 45-54%). Analysis of the energy consumption ratio (ECR) also revealed that for wet algal biomass (80% moisture content), HTL is more favorable (ECR 0.44-0.63) than pyrolysis (ECR 0.92-1.24) due to required water volatilization in the latter technique.
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Affiliation(s)
- Derek R Vardon
- Dept. of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 N. Mathews Ave., Urbana, IL 61801, United States.
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40
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Yang C, Jia L, Su S, Tian Z, Song Q, Fang W, Chen C, Liu G. Utilization of CO2 and biomass char derived from pyrolysis of Dunaliella salina: the effects of steam and catalyst on CO and H2 gas production. BIORESOURCE TECHNOLOGY 2012; 110:676-681. [PMID: 22336747 DOI: 10.1016/j.biortech.2012.01.124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 01/19/2012] [Accepted: 01/20/2012] [Indexed: 05/31/2023]
Abstract
Biomass char, by-product of Dunaliella salina pyrolysis at a final pyrolysis temperature of 500°C, was used as feedstock material in this study. The reactions of biomass char with CO(2) were performed in a fixed-bed reactor to evaluate the effect of temperature and steam on the CO(2) conversion, CO yield and gas composition. The CO(2) conversion and CO yield without steam and catalyst reached about 61.84% and 0.99mol/(mol CO(2)) at 800°C, respectively. Steam and high temperature led to high CO(2) conversion. A new approach for improving H(2) was carried out by using biomass char and Au/Al(2)O(3) catalyst, which combined steam gasification of biomass char and water gas shift reaction, and the H(2) concentration was 1.8 times higher than without catalyst. The process not only mitigated CO(2) emission and made use of residual biomass char, but also created renewable source.
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Affiliation(s)
- Chao Yang
- Department of Chemical Engineering and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
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