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Kumar A, Mishra S, Singh NK, Yadav M, Padhiyar H, Christian J, Kumar R. Ensuring carbon neutrality via algae-based wastewater treatment systems: Progress and future perspectives. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 360:121182. [PMID: 38772237 DOI: 10.1016/j.jenvman.2024.121182] [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: 12/23/2023] [Revised: 04/24/2024] [Accepted: 05/13/2024] [Indexed: 05/23/2024]
Abstract
The emergence of algal biorefineries has garnered considerable attention to researchers owing to their potential to ensure carbon neutrality via mitigation of atmospheric greenhouse gases. Algae-derived biofuels, characterized by their carbon-neutral nature, stand poised to play a pivotal role in advancing sustainable development initiatives aimed at enhancing environmental and societal well-being. In this context, algae-based wastewater treatment systems are greatly appreciated for their efficacy in nutrient removal and simultaneous bioenergy generation. These systems leverage the growth of algae species on wastewater nutrients-including carbon, nitrogen, and phosphorus-alongside carbon dioxide, thus facilitating a multifaceted approach to pollution remediation. This review seeks to delve into the realization of carbon neutrality through algae-mediated wastewater treatment approaches. Through a comprehensive analysis, this review scrutinizes the trajectory of algae-based wastewater treatment via bibliometric analysis. It subsequently examines the case studies and empirical insights pertaining to algae cultivation, treatment performance analysis, cost and life cycle analyses, and the implementation of optimization methodologies rooted in artificial intelligence and machine learning algorithms for algae-based wastewater treatment systems. By synthesizing these diverse perspectives, this study aims to offer valuable insights for the development of future engineering applications predicated on an in-depth understanding of carbon neutrality within the framework of circular economy paradigms.
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Affiliation(s)
- Amit Kumar
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
| | - Saurabh Mishra
- Institute of Water Science and Technology, Hohai University, Nanjing China, 210098, China.
| | - Nitin Kumar Singh
- Department of Chemical Engineering, Marwadi University, Rajkot, Gujarat, India.
| | - Manish Yadav
- Central Mine Planning and Design Institute Limite, Bhubaneswar, India.
| | | | - Johnson Christian
- Environment Audit Cell, R. D. Gardi Educational Campus, Rajkot, Gujarat, India.
| | - Rupesh Kumar
- Jindal Global Business School (JGBS), O P Jindal Global University, Sonipat, 131001, Haryana, India.
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2
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Li J, Wen Y, Fang Z, Yang W, Song X. Application of cold-adapted microbial agents in soil contaminate remediation: biodegradation mechanisms, case studies, and safety assessments. RSC Adv 2024; 14:12720-12734. [PMID: 38645519 PMCID: PMC11027001 DOI: 10.1039/d4ra01510j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/11/2024] [Indexed: 04/23/2024] Open
Abstract
The microbial agent technology has made significant progress in remediating nitro-aromatic compounds (NACs), such as p-nitrophenol, 2,4-dinitrophenol, and 2,4,6-Trinitrotoluene, in farmland soil over the past decade. However, there are still gaps in our understanding of the bioavailability and degradation mechanisms of these compounds in low-temperature environments. In this review, we provide a comprehensive summary of the strategies employed by cold-adapted microorganisms and elucidate the degradation pathways of NACs pollutants. To further analyze their metabolic mechanisms, we propose using mass balance to improve our understanding of biochemical processes and refine the degradation pathways through stoichiometry analysis. Additionally, we suggest employing 13C-metabolic flux analysis to track enzyme activity and intermediate products during bio-degradation processes with the aim of accelerating the remediation of nitro-aromatic compounds, particularly in cold regions. Through a comprehensive analysis of pollutant metabolic activities and a commitment to the 'One Health' approach, with an emphasis on selecting non-pathogenic strains, the environmental management strategies for soil remediation could be positioned to develop and implement safe and effective measure.
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Affiliation(s)
- Jiaxin Li
- Key Laboratory of Regional Environment and Eco-restoration, Ministry of Education, Shenyang University Shenyang 110044 China +86(24)62269636
| | - Yujuan Wen
- Key Laboratory of Regional Environment and Eco-restoration, Ministry of Education, Shenyang University Shenyang 110044 China +86(24)62269636
- Northeast Geological S&T Innovation Center of China Geological Survey, Shenyang University Shenyang 110044 China
- Key Laboratory of Black Soil Evolution and Ecological Effect, Ministry of Natural Resources China
| | - Zheng Fang
- Key Laboratory of Regional Environment and Eco-restoration, Ministry of Education, Shenyang University Shenyang 110044 China +86(24)62269636
| | - Wenqi Yang
- Key Laboratory of Regional Environment and Eco-restoration, Ministry of Education, Shenyang University Shenyang 110044 China +86(24)62269636
| | - Xiaoming Song
- Key Laboratory of Regional Environment and Eco-restoration, Ministry of Education, Shenyang University Shenyang 110044 China +86(24)62269636
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Li H, Meng F. Efficiency, mechanism, influencing factors, and integrated technology of biodegradation for aromatic compounds by microalgae: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122248. [PMID: 37490964 DOI: 10.1016/j.envpol.2023.122248] [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: 04/28/2023] [Revised: 07/06/2023] [Accepted: 07/21/2023] [Indexed: 07/27/2023]
Abstract
Aromatic compounds have received widespread attention because of their threat to ecosystem and human health. However, traditional physical and chemical methods are criticized due to secondary pollution and high cost. As a result of ecological security and the ability of carbon sequestration, biodegradation approach based on microalgae has emerged as a promising alternative treatment for aromatic pollutants. In light of the current researches, the degradation efficiency of BTEX (benzene, toluene, ethylbenzene, and xylene), polycyclic aromatic hydrocarbons (PAHs), and phenolic compounds by microalgae was reviewed in this study. We summarized the degradation pathways and metabolites of p-xylene, benzo [a]pyrene, fluorene, phenol, bisphenol A, and nonylphenol by microalgae. The influence factors on the degradation of aromatic compounds by microalgae were also discussed. The integrated technologies based on microalgae for degradation of aromatic compounds were reviewed. Finally, this study discussed the limitations and future research needs of the degradation of these compounds by microalgae.
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Affiliation(s)
- Haiping Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
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4
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Bhatt P, Bhandari G, Turco RF, Aminikhoei Z, Bhatt K, Simsek H. Algae in wastewater treatment, mechanism, and application of biomass for production of value-added product. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 309:119688. [PMID: 35793713 DOI: 10.1016/j.envpol.2022.119688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/21/2022] [Accepted: 06/24/2022] [Indexed: 05/16/2023]
Abstract
The pollutants can enter water bodies at various point and non-point sources, and wastewater discharge remains a major pathway. Wastewater treatment effectively reduces contaminants, it is expensive and requires an eco-friendly and sustainable alternative approach to reduce treatment costs. Algae have recently emerged as a potentially cost-effective method to remediate toxic pollutants through the mechanism of biosorption, bioaccumulation, and intracellular degradation. Hence, before discharging the wastewater into the natural environment better solutions for environmental resource recovery and sustainable developments can be applied. More importantly, algae are a potential feedstock material for various industrial applications such as biofuel production. Currently, researchers are developing algae as a source for pharmaceuticals, biofuels, food additives, and bio-fertilizers. This review mainly focused on the potential of algae and their specific mechanisms involved in wastewater treatment and energy recovery systems leading to important industrial precursors. The review is highly beneficial for scientists, wastewater treatment plant operators, freshwater managers, and industrial communities to support the sustainable development of natural resources.
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Affiliation(s)
- Pankaj Bhatt
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, 47906, USA.
| | - Geeta Bhandari
- Department of Biosciences, Swami Rama Himalayan University, Dehradun, 248016, Uttarakhand, India
| | - Ronald F Turco
- Department of Agronomy, Purdue University, West Lafayette, IN, 47906, USA
| | - Zahra Aminikhoei
- Agricultural Research Education and Extension Organization (AREEO), Iranian Fisheries Science Research Institute (IFSRI), Offshore Fisheries Research Center, Chabahar, Iran
| | - Kalpana Bhatt
- Department of Food Science, Purdue University, West Lafayette, IN, USA
| | - Halis Simsek
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, 47906, USA.
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5
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Li X, Feng C, Lei M, Luo K, Wang L, Liu R, Li Y, Hu Y. Bioremediation of organic/heavy metal contaminants by mixed cultures of microorganisms: A review. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Although microbial remediation has been widely used in the bioremediation of various contaminants, in practical applications of biological remediation, pure cultures of microorganisms are seriously limited by their adaptability, efficiency, and capacity to handle multiple contaminants. Mixed cultures of microorganisms involve the symbiosis of two or more microorganisms. Such cultures exhibit a collection of the characteristics of each microorganism species or strain, showing enormous potential in the bioremediation of organic or heavy metal pollutants. The present review focuses on the mixed cultures of microorganisms, demonstrating its importance and summarizing the advantages of mixed cultures of microorganisms in bioremediation. Furthermore, the internal and external relations of mixed culture microorganisms were analyzed with respect to their involvement in the removal process to elucidate the underlying mechanisms.
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Affiliation(s)
- Xue Li
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
| | - Chongling Feng
- Department of Environmental Engineering, Institute of Environmental Science and Engineering Research, Central South University of Forestry & Technology , Changsha , Hunan, 410004 , China
| | - Min Lei
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
| | - Kun Luo
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
| | - Lingyu Wang
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
| | - Renguo Liu
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
| | - Yuanyuan Li
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
| | - Yining Hu
- Department of Environmental Engineering, College of Biological and Environmental Engineering, Changsha University , Changsha , Hunan, 410022 , China
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6
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Tawfik A, Hasanan K, Abdullah M, Badr OA, Awad HM, Elsamadony M, El-Dissouky A, Qyyum MA, Nizami AS. Graphene enhanced detoxification of wastewater rich 4-nitrophenol in multistage anaerobic reactor followed by baffled high-rate algal pond. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127395. [PMID: 34879583 DOI: 10.1016/j.jhazmat.2021.127395] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/14/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
The presence of 4-nitrophenol (4-NP) in the wastewater industry causes toxicity and inhibition of the anaerobic degrading bacteria. The anaerobes in the multistage anaerobic reactor were loaded by 30.0 mg/gVS Graphene nanoparticles (MAR-Gn) as an electron acceptor to detoxify wastewater industry. The half maximal inhibitory concentration (IC50) was reduced from 455 ± 22.5 to 135 ± 12.7 μg Gallic acid equivalent/mL at 4-NP loading rate of 47.9 g/m3d. Furthermore, 4-NP was decreased by a value of 83.7 ± 4.9% in MAR-Gn compared to 65.6 ± 4.8% in control MAR. The 4-aminophenol (4-AP) recovery was accounted for 44.8% in the MAR-Gn at an average oxidation-reduction potential (ORP) of - 167.3 ± 21.2 mV. The remaining portions of 4-NP and 4-AP in the MAR-Gn effluent were efficiently removed by baffled high rate algal pond (BHRAP), resulting in overall removal efficiency of 91.6 ± 6.3 and 92.3 ± 4.6%, respectively. The Methanosaeta (52.9%) and Methanosphaerula (10.9%) were dominant species in MAR-Gn for reduction of 4-NP into 4-AP. Moreover, Chlorophyta cells (Chlorella vulgaris, Scenedesmus obliquus, Scenedesmus quadricauda and Ulothrix subtilissima were abundant in the BHRAP for complete degradation of 4-NP and 4-AP.
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Affiliation(s)
- Ahmed Tawfik
- National Research Centre, Water Pollution Research Department, Dokki, Giza 12622, Egypt
| | - Khaled Hasanan
- National Research Centre, Water Pollution Research Department, Dokki, Giza 12622, Egypt
| | - Mahmoud Abdullah
- National Research Centre, Water Pollution Research Department, Dokki, Giza 12622, Egypt
| | - Omnia A Badr
- Department of Genetics and Genetic Engineering, Faculty of Agriculture, Benha University, Qalyubia, Egypt
| | - Hanem M Awad
- National Research Centre, Department of Tanning Materials and Leather Technology & Regulatory Toxicology Lab, Centre of Excellence, El-Behouth St., Dokki 12622, Egypt
| | - Mohamed Elsamadony
- Department of Public Works Engineering, Faculty of Engineering, Tanta University, 31521 Tanta, Egypt
| | - Ali El-Dissouky
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria 21321, Egypt
| | - Muhammad Abdul Qyyum
- Department of Petroleum & Chemical Engineering, Sultan Qaboos University, Muscat, Oman; School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, South Korea.
| | - Abdul-Sattar Nizami
- Sustainable Development Study Center, Government College University, Lahore 54000, Pakistan
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Sun C, Li C, Mu W, Ma L, Xie H, Xu J. The photosynthetic physiological response and purification effect of Salix babylonica to 2, 4-dinitrophenol wastewater. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:675-683. [PMID: 34455875 DOI: 10.1080/15226514.2021.1962799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Phytoremediation technology based on living green plants would clean up water pollution. Through hydroponic experiment, the effects of different concentration of 2, 4-dinitrophenol (2, 4-DNP) on the photosynthetic and chlorophyll fluorescence parameters of Salix babylonica, and the absorption and purification effect of S. babylonica on 2, 4-DNP were measured to explore the tolerance of S. babylonica to 2, 4-DNP and the feasibility to purify dinitrophenol waste water by it. The biomass, actual photochemical efficiency (PSII), net photosynthetic rate (Pn), photochemical quenching coefficient (qP), stomatal conductance (Gs), transpiration rate (Tr), maximum photochemical efficiency (Fv/Fm) and chlorophyll content of the S. babylonica showed downward trend with the increasing exposure concentrations of 2,4-DNP, but the intercellular CO2 concentration (Ci) appeared upward trend. Non-photochemical quenching coefficient (NPQ) increased at 5 mg L-1, then declined with the increase concentrations of 2, 4-DNP. In addition, the percent removal of 2, 4-DNP in 20 mg L-1 waste water was 91.4%. In conclusion, 2, 4-DNP significantly inhibits Pn of S. babylonica and the reduction of Pn was caused by decreasing Gs, carboxylation efficiency and chlorophyll content. When the concentration of 2, 4-DNP is not more than 20 mg L-1, S. babylonica can remove 2, 4-DNP efficiently.
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Affiliation(s)
- Chaofan Sun
- Forestry College of Shandong Agricultural University, Taian, China
| | - Chuanrong Li
- Forestry College of Shandong Agricultural University, Taian, China
- State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, China
| | - Wenxiu Mu
- Forestry College of Shandong Agricultural University, Taian, China
| | - Luyao Ma
- Forestry College of Shandong Agricultural University, Taian, China
| | - Huicheng Xie
- Forestry College of Shandong Agricultural University, Taian, China
- State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, China
| | - Jingwei Xu
- Shandong Provincial Academy of Forestry, Jinnan, China
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8
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Fabrication and characterization of reduced graphene oxide with silver nanoparticles and its utilities for enhancing photodegradation of 2,4 dinitrophenol compound. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-02017-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Kwak JI, Kim SW, Kim L, Cui R, Lee J, Kim D, Chae Y, An YJ. Determination of hazardous concentrations of 2,4-dinitrophenol in freshwater ecosystems based on species sensitivity distributions. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 228:105646. [PMID: 33011648 DOI: 10.1016/j.aquatox.2020.105646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
2,4-dinitrophenol (2,4-DNP) is a phenolic compound used as a wood preservative or pesticide. The chemical is hazardous to freshwater organisms. Although 2,4-DNP poses ecological risks, only a few of its aquatic environmental risks have been investigated and very limited guidelines for freshwater aquatic ecosystems have been established by governments. This study addresses the paucity of 2,4-DNP toxicity data for freshwater ecosystems and the current lack of highly reliable trigger values for this highly toxic compound. We conducted acute bioassays using 12 species from nine taxonomic groups and chronic assays using five species from four taxonomic groups to improve the quality of the dataset and enable the estimation of protective concentrations based on species sensitivity distributions. The acute and hazardous concentrations of 2,4-DNP in 5% of freshwater aquatic species (HC5) were determined to be 0.91 (0.32-2.65) mg/L and 0.22 (0.11-0.42) mg/L, respectively. To the best of our knowledge, this is the first report of a suggested chronic HC5 for 2,4-DNP and it provides the much-needed fundamental data for the risk assessment and management of freshwater ecosystems.
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Affiliation(s)
- Jin Il Kwak
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Shin Woong Kim
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Lia Kim
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Rongxue Cui
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Jieun Lee
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Dokyung Kim
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Yooeun Chae
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, Seoul, Republic of Korea.
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10
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Cheng G, Yu W, Yang C, Li S, Wang X, Wang P, Zhang K, Li X, Zhu G. Highly selective removal of 2,4‐dinitrophenol by a surface imprinted sol–gel polymer. J Appl Polym Sci 2020. [DOI: 10.1002/app.49236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Guohao Cheng
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
| | - Wenna Yu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
- Zhengzhou Sewage Purification Co., Ltd. Zhengzhou Henan China
| | - Can Yang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
| | - Shiying Li
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
| | - Xiaoyue Wang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
| | - Peiyun Wang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
- Zhengzhou Sewage Purification Co., Ltd. Zhengzhou Henan China
| | - Kaige Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
| | - Xiang Li
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
| | - Guifen Zhu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education Henan Normal University Xinxiang Henan China
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11
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Bashir H, Yi X, Yuan J, Yin K, Luo S. Highly ordered TiO2 nanotube arrays embedded with g-C3N4 nanorods for enhanced photocatalytic activity. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111930] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Żyszka-Haberecht B, Niemczyk E, Lipok J. Metabolic relation of cyanobacteria to aromatic compounds. Appl Microbiol Biotechnol 2019. [PMID: 30580382 DOI: 10.1007/s0025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Cyanobacteria, also known as blue-green (micro)algae, are able to sustain many types of chemical stress because of metabolic adaptations that allow them to survive and successfully compete in a variety of ecosystems, including polluted ones. As photoautotrophic bacteria, these microorganisms synthesize aromatic amino acids, which are precursors for a large variety of substances that contain aromatic ring(s) and that are naturally formed in the cells of these organisms. Hence, the transformation of aromatic secondary metabolites by cyanobacteria is the result of the possession of a suitable "enzymatic apparatus" to carry out the biosynthesis of these compounds according to cellular requirements. Another crucial aspect that should be evaluated using varied criteria is the response of cyanobacteria to the presence of extracellular aromatic compounds. Some aspects of the relationship between aromatic compounds and cyanobacteria such as the biosynthesis of aromatic compounds, the influence of aromatic compounds on these organisms and the fate of aromatic substances inside microalgal cells are presented in this paper. The search for this information has suggested that there is a lack of knowledge about the regulation of the biosynthesis of aromatic substances and about the transport of these compounds into cyanobacterial cells. These aspects are of pivotal importance with regard to the biotransformation of aromatic compounds and understanding them may be the goals of future research.
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Affiliation(s)
- Beata Żyszka-Haberecht
- Department of Analytical and Ecological Chemistry, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Emilia Niemczyk
- Department of Analytical and Ecological Chemistry, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Jacek Lipok
- Department of Analytical and Ecological Chemistry, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland.
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Żyszka-Haberecht B, Niemczyk E, Lipok J. Metabolic relation of cyanobacteria to aromatic compounds. Appl Microbiol Biotechnol 2018; 103:1167-1178. [PMID: 30580382 PMCID: PMC6394484 DOI: 10.1007/s00253-018-9568-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 12/11/2022]
Abstract
Cyanobacteria, also known as blue-green (micro)algae, are able to sustain many types of chemical stress because of metabolic adaptations that allow them to survive and successfully compete in a variety of ecosystems, including polluted ones. As photoautotrophic bacteria, these microorganisms synthesize aromatic amino acids, which are precursors for a large variety of substances that contain aromatic ring(s) and that are naturally formed in the cells of these organisms. Hence, the transformation of aromatic secondary metabolites by cyanobacteria is the result of the possession of a suitable "enzymatic apparatus" to carry out the biosynthesis of these compounds according to cellular requirements. Another crucial aspect that should be evaluated using varied criteria is the response of cyanobacteria to the presence of extracellular aromatic compounds. Some aspects of the relationship between aromatic compounds and cyanobacteria such as the biosynthesis of aromatic compounds, the influence of aromatic compounds on these organisms and the fate of aromatic substances inside microalgal cells are presented in this paper. The search for this information has suggested that there is a lack of knowledge about the regulation of the biosynthesis of aromatic substances and about the transport of these compounds into cyanobacterial cells. These aspects are of pivotal importance with regard to the biotransformation of aromatic compounds and understanding them may be the goals of future research.
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Affiliation(s)
- Beata Żyszka-Haberecht
- Department of Analytical and Ecological Chemistry, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Emilia Niemczyk
- Department of Analytical and Ecological Chemistry, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Jacek Lipok
- Department of Analytical and Ecological Chemistry, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland.
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Surkatti R, Al-Zuhair S. Microalgae cultivation for phenolic compounds removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:33936-33956. [PMID: 30353440 DOI: 10.1007/s11356-018-3450-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 10/11/2018] [Indexed: 06/08/2023]
Abstract
Microalgae are promising sustainable and renewable sources of oils that can be used for biodiesel production. In addition, they contain important compounds, such as proteins and pigments, which have large applications in the food and pharmaceutical industries. Combining the production of these valuable products with wastewater treatment renders the cultivation of microalgae very attractive and economically feasible. This review paper presents and discusses the current applications of microalgae cultivation for wastewater treatment, particularly for the removal of phenolic compounds. The effects of cultivation conditions on the rate of contaminants removal and biomass productivity, as well as the chemical composition of microalgae cells are also discussed.
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Affiliation(s)
- Riham Surkatti
- Chemical Engineering Department, United Arab Emirates University, 15551, Al-Ain, United Arab Emirates
| | - Sulaiman Al-Zuhair
- Chemical Engineering Department, United Arab Emirates University, 15551, Al-Ain, United Arab Emirates.
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15
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Chen HJ, Tian W, Ding W. Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance. ADSORPT SCI TECHNOL 2018. [DOI: 10.1177/0263617417752578] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Herein active manganese dioxide was prepared by different methods using KMnO4 and MnSO4·H2O as inorganic precursors. The impact of preparation methods on morphology and adsorption performance of the synthesized products was investigated. The experimental results show that the reaction temperature and pressure had a great effect on the morphology and adsorption performance of active manganese dioxide. The shape of active manganese dioxide prepared at room temperature and pressure was short rod-like while active manganese dioxide synthesized by hydrothermal method was mesoporous fibers and had better adsorption performance. The adsorption behavior of 2,4-dinitrophenol on mesoporous manganese dioxide was well described by Langmuir and Freundlich isotherm equation ( R2>0.99) and pseudo-second-order kinetic equation ( R2>0.99), so the adsorption process maybe a chemical and monolayer adsorption. The pH of solution had significant effect on the adsorption performance of 2,4-dinitrophenol on mesoporous manganese dioxide. The adsorption capacity was 2.539 mg/g in the condition of pH = 7.
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Affiliation(s)
- Hua-jun Chen
- Department of Environment and Chemistry, Luoyang Institute of Science and Technology, P.R. China
| | - Wenjie Tian
- Department of Environment and Chemistry, Luoyang Institute of Science and Technology, P.R. China
| | - Wuxiu Ding
- Department of Environment and Chemistry, Luoyang Institute of Science and Technology, P.R. China
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16
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Uslu H. Evaluation of extractability of 2,4,6-trinitrophenol by secondary amine extractant in alcohols: Equilibrium and molecular dynamic study. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.09.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Shu CH, Tsai CC. Enhancing oil accumulation of a mixed culture of Chlorella sp. and Saccharomyces cerevisiae using fish waste hydrolysate. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.08.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Dayana Priyadharshini S, Bakthavatsalam AK. Optimization of phenol degradation by the microalga Chlorella pyrenoidosa using Plackett-Burman Design and Response Surface Methodology. BIORESOURCE TECHNOLOGY 2016; 207:150-156. [PMID: 26878360 DOI: 10.1016/j.biortech.2016.01.138] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 01/25/2016] [Accepted: 01/31/2016] [Indexed: 06/05/2023]
Abstract
Statistical optimization designs were used to optimize the phenol degradation using Chlorella pyrenoidosa. The important factor influencing phenol degradation was identified by two-level Plackett-Burman Design (PBD) with five factors. PBD determined the following three factors as significant for phenol degradation viz. algal concentration, phenol concentration and reaction time. CCD and RSM were applied to optimize the significant factors identified from PBD. The results obtained from CCD indicated that the interaction between the concentration of algae and phenol, phenol concentration and reaction time and algal concentration and reaction time affect the phenol degradation (response) significantly. The predicted results showed that maximum phenol degradation of 97% could be achieved with algal concentration of 4g/L, phenol concentration of 0.8g/L and reaction time of 4days. The predicted values were in agreement with experimental values with coefficient of determination (R(2)) of 0.9973. The model was validated by subsequent experimentations at the optimized conditions.
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19
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Uslu H, Datta D, Bamufleh HS. Extraction of Picric Acid from Wastewater by a Secondary Amine (Amberlite LA2) in Octan-1-ol: Equilibrium, Kinetics, Thermodynamics, and Molecular Dynamics Simulation. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04750] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hasan Uslu
- Engineering
and Architecture Faculty, Chemical Engineering Department, Beykent University, Ayazağa, İstanbul, Turkey
- Chemical
and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Dipaloy Datta
- Department
of Chemical Engineering, Malaviya National Institute of Technology, Jaipur, Rajasthan, India
| | - Hisham S. Bamufleh
- Chemical
and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
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20
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Wang X, Xing D, Ren N. p-Nitrophenol degradation and microbial community structure in a biocathode bioelectrochemical system. RSC Adv 2016. [DOI: 10.1039/c6ra17446a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The biocathode bioelectrochemical system (bioc-BES) was used forp-nitrophenol (PNP) degradation with sodium bicarbonate as the carbon source.
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Affiliation(s)
- Xinyu Wang
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- PR China
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- PR China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- PR China
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21
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Kowalczyk A, Martin TJ, Price OR, Snape JR, van Egmond RA, Finnegan CJ, Schäfer H, Davenport RJ, Bending GD. Refinement of biodegradation tests methodologies and the proposed utility of new microbial ecology techniques. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 111:9-22. [PMID: 25450910 DOI: 10.1016/j.ecoenv.2014.09.021] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 09/22/2014] [Accepted: 09/23/2014] [Indexed: 06/04/2023]
Abstract
Society's reliance upon chemicals over the last few decades has led to their increased production, application and release into the environment. Determination of chemical persistence is crucial for risk assessment and management of chemicals. Current established OECD biodegradation guidelines enable testing of chemicals under laboratory conditions but with an incomplete consideration of factors that can impact on chemical persistence in the environment. The suite of OECD biodegradation tests do not characterise microbial inoculum and often provide little insight into pathways of degradation. The present review considers limitations with the current OECD biodegradation tests and highlights novel scientific approaches to chemical fate studies. We demonstrate how the incorporation of molecular microbial ecology methods (i.e., 'omics') may improve the underlying mechanistic understanding of biodegradation processes, and enable better extrapolation of data from laboratory based test systems to the relevant environment, which would potentially improve chemical risk assessment and decision making. We outline future challenges for relevant stakeholders to modernise OECD biodegradation tests and put the 'bio' back into biodegradation.
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Affiliation(s)
- Agnieszka Kowalczyk
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom.
| | - Timothy James Martin
- School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Oliver Richard Price
- Unilever, Safety & Environmental Assurance Centre, Colworth Science Park, Sharnbrook MK441LQ, United Kingdom
| | | | - Roger Albert van Egmond
- Unilever, Safety & Environmental Assurance Centre, Colworth Science Park, Sharnbrook MK441LQ, United Kingdom
| | - Christopher James Finnegan
- Unilever, Safety & Environmental Assurance Centre, Colworth Science Park, Sharnbrook MK441LQ, United Kingdom
| | - Hendrik Schäfer
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Russell James Davenport
- School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Gary Douglas Bending
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom
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22
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Shen J, Xu X, Jiang X, Hua C, Zhang L, Sun X, Li J, Mu Y, Wang L. Coupling of a bioelectrochemical system for p-nitrophenol removal in an upflow anaerobic sludge blanket reactor. WATER RESEARCH 2014; 67:11-18. [PMID: 25259679 DOI: 10.1016/j.watres.2014.09.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 08/26/2014] [Accepted: 09/01/2014] [Indexed: 06/03/2023]
Abstract
Coupling of a bioelectrochemical system (BES) into the upflow anaerobic sludge blanket (UASB) was developed for enhanced p-nitrophenol (PNP) removal in this study. Compared to the control UASB reactor, both PNP removal and the formation of its final reductive product p-aminophenol (PAP) were notably improved in the UASB-BES system. With the increase of current density from 0 to 4.71 A m(-3), the rates of PNP removal and PAP formation increased from 6.16 ± 0.11 and 4.21 ± 0.29 to 6.77 ± 0.00 and 6.11 ± 0.28 mol m(-3) d(-1), respectively. More importantly, the required dosage of organic cosubstrate was significantly reduced in the UASB-BES system than that in the UASB reactor. Organic carbon flux analysis suggested that biogas production from organic cosubstrate was seriously suppressed while direct anaerobic reduction of PNP was not remarkably affected by current input in the UASB-BES system. This study demonstrated that the UASB-BES coupling system had a promising potential for the removal of nitrophenol-containing wastewaters especially without adequate organic cosubstrates inside.
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Affiliation(s)
- Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China.
| | - Xiaopeng Xu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Xinbai Jiang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Congxin Hua
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Libin Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Xiuyun Sun
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Jiansheng Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Yang Mu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Lianjun Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China.
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23
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Goff KL, Peru K, Wilson KE, Headley JV. Evaluation of biologically mediated changes in oil sands naphthenic acid composition by Chlamydomonas reinhardtii using negative-ion electrospray orbitrap mass spectrometry. JOURNAL OF PHYCOLOGY 2014; 50:727-735. [PMID: 26988456 DOI: 10.1111/jpy.12202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/08/2014] [Indexed: 06/05/2023]
Abstract
Industrial activity associated with oil-sands extraction in Canada's Athabasca region produces a variety of contaminants of concern, including naphthenic acid fraction components (NAFCs). NAFCs are a complex mixture of organic compounds that are poorly understood both in terms of their chemical composition and effects on the environment. NAFC toxicity in the unicellular green algae Chlamydomonas reinhardtii P.A.Dangeard was correlated with the presence of the algal cell wall. It was suggested that the toxicity of NAFCs in C. reinhardtii was due to surfactant effects. Surfactant-cell wall interactions are specific and governed by the compound class and structure, and by the nature of the biological material. Here, we investigate the effects of wildtype (WT) C. reinhardtii and two cell-wall mutants on specific classes of NAFCs when growing cultures were treated with a 100 mg · L(-1) solution of NAFCs. Changes in the NAFC composition in the media were examined using high resolution mass spectrometry over a period of 4 d. Algal mediated changes in the NAFCs were limited to specific classes of NAFCs. In particular, the removal of large, classical naphthenic acids, with a double bond equivalent of 8, was observed in WT C. reinhardtii cultures. The observed algal mediated changes in NAFC composition would have been masked by low resolution mass spectrometry and highlight the importance of this tool in examining bioremediation of complex mixtures of NAFCs.
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Affiliation(s)
- Kira L Goff
- Department of Biology and Toxicology Centre, University of Saskatchewan, 112 Science Place, Saskatoon, Saskatchewan, Canada, S7N 5E2
| | - Kerry Peru
- Environment Canada, National Hydrology Research Centre, 11 Innovation Blvd, Saskatoon, Saskatchewan, Canada, S7N 3H5
| | - Kenneth E Wilson
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, Saskatchewan, Canada, S7N 5E2
| | - John V Headley
- Environment Canada, National Hydrology Research Centre, 11 Innovation Blvd, Saskatoon, Saskatchewan, Canada, S7N 3H5
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24
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Arora PK, Srivastava A, Singh VP. Bacterial degradation of nitrophenols and their derivatives. JOURNAL OF HAZARDOUS MATERIALS 2014; 266:42-59. [PMID: 24374564 DOI: 10.1016/j.jhazmat.2013.12.011] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 11/22/2013] [Accepted: 12/04/2013] [Indexed: 06/03/2023]
Abstract
This review intends to provide an overview of bacterial degradation of nitrophenols (NPs) and their derivatives. The main scientific focus is on biochemical and genetic characterization of bacterial degradation of NPs. Other aspects such as bioremediation and chemotaxis correlated with biodegradation of NPs are also discussed. This review will increase our current understanding of bacterial degradation of NPs and their derivatives.
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Affiliation(s)
- Pankaj Kumar Arora
- Department of Plant Science, Faculty of Applied Sciences, MJP Rohilkhand University, Bareilly, India.
| | - Alok Srivastava
- Department of Plant Science, Faculty of Applied Sciences, MJP Rohilkhand University, Bareilly, India
| | - Vijay Pal Singh
- Department of Plant Science, Faculty of Applied Sciences, MJP Rohilkhand University, Bareilly, India
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25
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Shu CH, Tsai CC, Chen KY, Liao WH, Huang HC. Enhancing high quality oil accumulation and carbon dioxide fixation by a mixed culture of Chlorella sp. and Saccharomyces cerevisiae. J Taiwan Inst Chem Eng 2013. [DOI: 10.1016/j.jtice.2013.04.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Pham M, Schideman L, Scott J, Rajagopalan N, Plewa MJ. Chemical and biological characterization of wastewater generated from hydrothermal liquefaction of Spirulina. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:2131-2138. [PMID: 23305492 DOI: 10.1021/es304532c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Hydrothermal liquefaction (HTL) is an attractive method for converting wet biomass into petroleum-like biocrude oil that can be refined to make petroleum products. This approach is advantageous for conversion of low-lipid algae, which are promising feedstocks for sustainable large-scale biofuel production. As with natural petroleum formation, the water in contact with the produced oil contains toxic compounds. The objectives of this research were to: (1) identify nitrogenous organic compounds (NOCs) in wastewater from HTL conversion of Spirulina; (2) characterize mammalian cell cytotoxicity of specific NOCs, NOC mixture, and the complete HTL wastewater (HTL-WW) matrix; and (3) investigate mitigation measures to reduce toxicity in HTL-WW. Liquid-liquid extraction and nitrogen-phosphorus detection was used in conjunction with gas chromatography-mass spectrometry (GC-MS), which detected hundreds of NOCs in HTL-WW. Reference materials for nine of the most prevalent NOCs were used to identify and quantify their concentrations in HTL-WW. Mammalian cell cytotoxicity of the nine NOCs was quantified using a Chinese hamster ovary (CHO) cell assay, and the descending rank order for cytotoxicity was 3-dimethylamino-phenol > 2,2,6,6-tetramethyl-4-piperidone > 2,6-dimethyl-3-pyridinol > 2-picoline > pyridine > 1-methyl-2-pyrrolidinone > σ-valerolactam > 2-pyrrolidinone > ε-caprolactam. The organic mixture extracted from HTL-WW expressed potent CHO cell cytotoxic activity, with a LC(50) at 7.5% of HTL-WW. Although the toxicity of HTL-WW was substantial, 30% of the toxicity was removed biologically by recycling HTL-WW back into algal cultivation. The remaining toxicity of HTL-WW was mostly eliminated by subsequent treatment with granular activated carbon.
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Affiliation(s)
- Mai Pham
- University of Illinois at Urbana-Champaign, College of Agricultural, Consumer and Environmental Sciences, Urbana, IL, USA
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27
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Quenching of tryptophan fluorescence in the presence of 2,4-DNP, 2,6-DNP, 2,4-DNA and DNOC and their mechanism of toxicity. Molecules 2013; 18:2266-80. [PMID: 23429343 PMCID: PMC6270512 DOI: 10.3390/molecules18022266] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 02/06/2013] [Accepted: 02/13/2013] [Indexed: 11/16/2022] Open
Abstract
Although they are widely used as insecticides, acaricides and fungicides in the agriculture or as raw materials in the dye industry, dinitrophenols (DNPs) are extremely noxious, death cases having been registered. These compounds produce cataracts, lower leucocyte levels, disturb the general metabolism and can cause cancer. It is also assumed that DNPs hinder the proton translocation through the mitochondrial inner membrane and therefore inhibit oxidative phosphorylation. Their fluorescence quenching properties can help understand and explain their toxicity. Fluorescence quenching of tryptophan was tested using different dinitrophenols such as 2,4-dinitrophenol (2,4-DNP), 4,6-dinitro-orthocresol (DNOC), 2-[(2,4-dinitrophenyl)amino]acetic acid (GlyDNP), 2-(1-methyl-heptyl)-4.6-dinitrophenyl crotonate (Karathan), 2-amino-5-[(1-((carboxymethyl)amino)-3-((2,4-dinitrophenyl)thio)-1-oxopropan-2-yl)amino]-5-oxopentanoic acid (SDN GSH), 2,4-dinitroanisole (2,4-DNA) and 2,4-dinitrobenzoic acid (2,4-DNB). 2,4-DNP and DNOC showed the highest tryptophan fluorescence quenching constant values, these being also the most toxic compounds. The electronic chemical potential value of the most stable complex of 2,4-DNP-with tryptophan is higher than the values of the electronic chemical potentials of complexes corresponding to the derivatives.
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28
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Ghasemi Y, Rasoul-Amini S, Fotooh-Abadi E. THE BIOTRANSFORMATION, BIODEGRADATION, AND BIOREMEDIATION OF ORGANIC COMPOUNDS BY MICROALGAE(1). JOURNAL OF PHYCOLOGY 2011; 47:969-80. [PMID: 27020178 DOI: 10.1111/j.1529-8817.2011.01051.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Rapid growth in the biotechnological industry and production has put tremendous pressure on the biological methods that may be used according to the guidelines of green chemistry. However, despite continuing dramatic increases in published research on organic biotransformation by microorganisms, more research exists with microalgae. Our efforts in transforming chemicals such as organic compounds for the production of functionalized products help to lessen the environmental effects of organic synthesis. These biotransformations convert organic contaminants to obtain carbon or energy for growth or as cosubstrates. This review aims to focus on the potential of microalgae in transformation, conversion, remediation, accumulation, degradation, and synthesis of various organic compounds. However, these technologies have the ability to provide the most efficient and environmentally safe approach for inexpensive biotransforming of a variety of organic contaminants, which are most industrial residues. In addition, the recent advances in microalgal bioactivity were discussed.
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Affiliation(s)
- Younes Ghasemi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71345-158, Shiraz, Iran Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71345-158, Shiraz, Iran Department of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, IranDepartment of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran
| | - Sara Rasoul-Amini
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71345-158, Shiraz, Iran Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71345-158, Shiraz, Iran Department of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, IranDepartment of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran
| | - Elham Fotooh-Abadi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71345-158, Shiraz, Iran Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71345-158, Shiraz, Iran Department of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, IranDepartment of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Sciences, P.O. Box 71345-1583, Shiraz, Iran
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29
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Dai R, Chen J, Lin J, Xiao S, Chen S, Deng Y. Reduction of nitro phenols using nitroreductase from E. coli in the presence of NADH. JOURNAL OF HAZARDOUS MATERIALS 2009; 170:141-143. [PMID: 19481342 DOI: 10.1016/j.jhazmat.2009.04.122] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 03/17/2009] [Accepted: 04/28/2009] [Indexed: 05/27/2023]
Abstract
The reductions of nitrophenols catalyzed by nitroreductase from E. coli in the presence of NADH were investigated in this paper. 4-Aminophenol and 4-hydroxylaminophenol were found in the reductive products of 4-nitrophenol and the maximum reductive ratio was about 83.49% when the reaction time was 70 min; 4,6-dinitro-2-pimelie kelone was found in the reductive products of 2,4-dinitrophenol and the maximum reductive ratio was about 75.28% when the reaction time was 80 min; 2,4-dinitrophenol and 4,6-dinitro-2-pimelie kelone were found in the reductive products of 2,4,6-trinitrophenol and the maximum reductive ratio was about 62.08% when the reaction time was 100 min. The similar reductive ratios of nitrophenols were obtained under aerobic and anaerobic conditions. The results indicated that nitroreductase was an oxygen-insensitive enzyme.
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Affiliation(s)
- Rongji Dai
- School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China.
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30
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Shen J, He R, Yu H, Wang L, Zhang J, Sun X, Li J, Han W, Xu L. Biodegradation of 2,4,6-trinitrophenol (picric acid) in a biological aerated filter (BAF). BIORESOURCE TECHNOLOGY 2009; 100:1922-1930. [PMID: 19036580 DOI: 10.1016/j.biortech.2008.10.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Revised: 10/12/2008] [Accepted: 10/13/2008] [Indexed: 05/27/2023]
Abstract
This study demonstrated the microbial purification of a model wastewater containing 2,4,6-trinitrophenol (TNP), which was carried out in a continuously working biological aerated filter (BAF). The main emphasis was on the operating performance of the reactor as a function of the pollution load. TNP was degraded at a maximum volumetric removal rate of 2.53gTNP/Ld, with low residual COD and TNP concentration. Overloading of TNP inhibited the nitrite-oxidizing activity, resulting in poor TNP degradation performance in the BAF system. The inhibition depended on some factors, such as influent concentrations and flow rates of the influent. It is assumed that nitrite-oxidizing occurred spontaneously during TNP degradation in the BAF system, could have significant influence on TNP wastewater treatment. One year after the reactor start-up, the dominance of Rhodococcus, which was initially inoculated in the reactor, was confirmed by analysis of 16S rDNA sequence of the PCR products separated by DGGE.
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Affiliation(s)
- Jinyou Shen
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, Jiangsu Province, China
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31
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Ghasemi Y, Rasoul-Amini S, Morowvat MH, Raee MJ, Ghoshoon MB, Nouri F, Negintaji N, Parvizi R, Mosavi-Azam SB. Characterization of hydrocortisone biometabolites and 18S rRNA gene in Chlamydomonas reinhardtii cultures. Molecules 2008; 13:2416-25. [PMID: 18830164 PMCID: PMC6245355 DOI: 10.3390/molecules13102416] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Accepted: 04/27/2008] [Indexed: 11/16/2022] Open
Abstract
A unicellular microalga, Chlamydomonas reinhardtii, was isolated from rice paddy-field soil and water samples and used in the biotransformation of hydrocortisone (1). This strain has not been previously tested for steroid bioconversion. Fermentation was carried out in BG-11 medium supplemented with 0.05% substrate at 25°C for 14 days of incubation. The products obtained were chromatographically purified and characterized using spectroscopic methods. 11β,17β-Dihydroxyandrost-4-en-3-one (2), 11β- hydroxyandrost-4-en-3,17-dione (3), 11β,17α,20β,21-tetrahydroxypregn-4-en-3-one (4) and prednisolone (5) were the main products of the bioconversion. The observed bioreaction features were the side chain degradation of the substrate to give compounds 2 and 3 and the 20-ketone reduction and 1,2-dehydrogenation affording compounds 4 and 5, respectively. A time course study showed the accumulation of product 2 from the second day of the fermentation and of compounds 3, 4 and 5 from the third day. All the metabolites reached their maximum concentration in seven days. Microalgal 18S rRNA gene was also amplified by PCR. PCR products were sequenced to confirm their authenticity as 18S rRNA gene of microalgae. The result of PCR blasted with other sequenced microalgae in NCBI showed 100% homology to the 18S small subunit rRNA of two Chlamydomonas reinhardtii spp.
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Affiliation(s)
- Younes Ghasemi
- Department of Pharmacognosy and Pharmaceutical Sciences, Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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