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Cheng L, Gao N, Quan C. Fermentation broth of food waste: A sustainable electron donor for perchlorate biodegradation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 167:165-172. [PMID: 37269580 DOI: 10.1016/j.wasman.2023.05.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/05/2023]
Abstract
Microbial reduction has been considered an effective way to remove perchlorate (ClO4-), during which, additional electron donors and carbon sources are required. This work aims to study the potential of fermentation broth of food waste (FBFW) serving as an electron donor for ClO4- biodegradation, and further investigates the variance of the microbial community. The results showed that FBFW without anaerobic inoculum at 96 h (F-96) exhibited the highest ClO4- removal rate of 127.09 mg/L/d, attributed to higher acetate and lower ammonium contents in the F-96 system. In a 5 L continuous stirred-tank reactor (CSTR), with a 217.39 g/m3·d ClO4- loading rate, 100% removal efficiency of ClO4- was achieved, indicating that the application of FBFW in the CSTR showed satisfactory performance for ClO4- degradation. Moreover, the microbial community analysis revealed that Proteobacteria and Dechloromonas contributed positively to ClO4- degradation. Therefore, this study provided a novel approach for the recovery and utilization of food waste, by employing it as a cost-effective electron donor for ClO4- biodegradation.
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Affiliation(s)
- Lijie Cheng
- Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Ningbo Gao
- Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Shannxi Coal and Chemical Technology Institute Co., Ltd, Xi'an 710000, China.
| | - Cui Quan
- Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
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2
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Prem EM, Schwarzenberger A, Markt R, Wagner AO. Effects of phenyl acids on different degradation phases during thermophilic anaerobic digestion. Front Microbiol 2023; 14:1087043. [PMID: 37089573 PMCID: PMC10113666 DOI: 10.3389/fmicb.2023.1087043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 03/06/2023] [Indexed: 04/08/2023] Open
Abstract
Aromatic compounds like phenyl acids (PA) can accumulate during anaerobic digestion (AD) of organic wastes due to an increased entry of lignocellulose, secondary plant metabolites or proteins, and thermodynamic challenges in degrading the benzene ring. The effects of aromatic compounds can be various – from being highly toxic to be stimulating for methanogenesis – depending on many parameters like inoculum or molecular characteristics of the aromatic compound. To contribute to a better understanding of the consequences of PA exposure during AD, the aim was to evaluate the effects of 10 mM PA on microbial communities degrading different, degradation phase–specific substrates in thermophilic batch reactors within 28 days: Microcrystalline cellulose (MCC, promoting hydrolytic to methanogenic microorganisms), butyrate or propionate (promoting syntrophic volatile fatty acid (VFA) oxidisers to methanogens), or acetate (promoting syntrophic acetate oxidisers to methanogens). Methane production, VFA concentrations and pH were evaluated, and microbial communities and extracellular polymeric substances (EPS) were assessed. The toxicity of PA depended on the type of substrate which in turn determined the (i) microbial diversity and composition and (ii) EPS quantity and quality. Compared with the respective controls, methane production in MCC reactors was less impaired by PA than in butyrate, propionate and acetate reactors which showed reductions in methane production of up to 93%. In contrast to the controls, acetate concentrations were high in all PA reactors at the end of incubation thus acetate was a bottle-neck intermediate in those reactors. Considerable differences in EPS quantity and quality could be found among substrates but not among PA variants of each substrate. Methanosarcina spp. was the dominant methanogen in VFA reactors without PA exposure and was inhibited when PA were present. VFA oxidisers and Methanothermobacter spp. were abundant in VFA assays with PA exposure as well as in all MCC reactors. As MCC assays showed higher methane yields, a higher microbial diversity and a higher EPS quantity and quality than VFA reactors when exposed to PA, we conclude that EPS in MCC reactors might have been beneficial for absorbing/neutralising phenyl acids and keeping (more susceptible) microorganisms shielded in granules or biofilms.
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Affiliation(s)
- Eva Maria Prem
- Department of Microbiology, Universität Innsbruck, Innsbruck, Austria
| | | | - Rudolf Markt
- Department of Microbiology, Universität Innsbruck, Innsbruck, Austria
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Zhao R, Tao H, Song Y, Guo J, Chen Z, Lu C, Han Y, Li H, Hou Y. Perchlorate bioreduction in UASB reactor: S 2--autotrophic granular sludge formation and sulphate generation control. ENVIRONMENTAL TECHNOLOGY 2022; 43:4330-4340. [PMID: 34180772 DOI: 10.1080/09593330.2021.1949046] [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: 02/07/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
Perchlorate (ClO4-) industrial wastewater requires efficient removal to prevent adverse environmental impacts, however, high concentration and low biodegradability give rise to poor ClO4- bioreduction performance. S2--autotrophic granular sludge (S2--AuGS) was firstly cultivated for high concentration perchlorate (ClO4-) removal in the upflow anaerobic sludge blanket (UASB) reactor (ClO4-: 150 mg L-1). Simultaneously, the S2- was utilized to control the SO42- generation as electron donor, the effluent SO42- concentration (190 mg L-1) was satisfied with drinking water standard (250 mg L-1). Under the optimized condition of hydraulic retention time (HRT) (6 h) and S2-/ClO4- molar ratio (2.2), more EPS was secreted, which promoted the S2--AuGS formation and stability. Though acclimation of 146 d, the S2--AuGS was formed with a large average granular sludge size (612 μm) and an excellent settleability (sludge volume index: SVI5/SVI30 = 1). With the mature S2--AuGS formation, the highest ClO4- and S2- loading was increased to 1.06 and 0.75 kg m-3 d-1. Interestingly, Georgfuchsia, Methyloversatilis, Sulfurisoma, and Exiguobacterium were the main microbial community in the S2--AuGS. This study proposed to form a novel S2--AuGS for developing the high ClO4- concentration removal performance and to utilize the S2- as an electron donor for controlling the excessive SO42- generation.
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Affiliation(s)
- Rui Zhao
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Huaqiang Tao
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Yuanyuan Song
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Jianbo Guo
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Zhi Chen
- Department of Building, Civil, and Environmental Engineering, Concordia University, Quebec, Canada
| | - Caicai Lu
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Yi Han
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Haibo Li
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
| | - Yanan Hou
- School of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, People's Republic of China
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Vega M, Ontiveros-Valencia A, Vargas IT, Nerenberg R. Chlorate addition enhances perchlorate reduction in denitrifying membrane-biofilm reactors. Appl Microbiol Biotechnol 2022; 106:4341-4350. [PMID: 35612628 DOI: 10.1007/s00253-022-11976-1] [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: 02/01/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 11/29/2022]
Abstract
Perchlorate is a widespread drinking water contaminant with regulatory standards ranging from 2 to 18 μg/L. The hydrogen-based membrane-biofilm reactor (MBfR) can effectively reduce perchlorate, but it is challenging to achieve low-µg/L levels. We explored chlorate addition to increase the abundance of perchlorate-reducing bacteria (PRB) and improve removals. MBfR reactors were operated with and without chlorate addition. Results show that chlorate doubled the abundance of putative PRB (e.g., Rhodocyclales) and improved perchlorate reduction to 23 ± 17 µg/L, compared to 53 ± 37 µg/L in the control. Sulfate reduction was substantially inhibited during chlorate addition, but quickly recovered once suspended. Our results suggest that chlorate addition can enhance perchlorate reduction by providing a selective pressure for PRB. It also decreases net sulfate reduction. KEY POINTS: • Chlorate increased the abundance of perchlorate-reducing bacteria • Chlorate addition improved perchlorate removal • Chlorate appeared to suppress sulfate reduction.
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Affiliation(s)
- Marcela Vega
- Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.,Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall of Engineering, South Bend, IN, 46556, USA.,Centro de Desarrollo Urbano Sustentable (CEDEUS), Av. Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Aura Ontiveros-Valencia
- Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall of Engineering, South Bend, IN, 46556, USA.,División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa de San José 2055, CP 78216, San Luis Potosí, México
| | - Ignacio T Vargas
- Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.,Centro de Desarrollo Urbano Sustentable (CEDEUS), Av. Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Robert Nerenberg
- Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall of Engineering, South Bend, IN, 46556, USA.
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Ji J, Peng L, Redina MM, Gao T, Khan A, Liu P, Li X. Perfluorooctane sulfonate decreases the performance of a sequencing batch reactor system and changes the sludge microbial community. CHEMOSPHERE 2021; 279:130596. [PMID: 33887592 DOI: 10.1016/j.chemosphere.2021.130596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
The existence of perfluorooctane sulfonate (PFOS) in large quantities threatens environment biosafety. However, the fate of PFOS in a sequencing batch reactor (SBR) system and its influence in system has not yet been revealed. In this study, the fate and behavior of PFOS in an SBR processing system were investigated. Mass balance analyses revealed that PFOS removal was mainly through adsorption. After the reactors were run for 20 days, the PFOS (100 mg/L) removal rate was only 28%. Under the influence of PFOS, the removal rates of chemical oxygen demand (COD) and ammonia nitrogen dropped rapidly from 92, 98% to 23, 35% in the 20th day of system operation, respectively, while, accumulation of nitrite and nitrate was reduced. Compared with the control group, PFOS stimulates microorganisms to secrete more soluble microbial products (SMP) and extracellular polymeric substances (EPS). The adsorption of PFOS and EPS causes sludge bulking and decreases settling. The richness and diversity of microorganisms decreased significantly, affecting the system's removal of COD and ammonia nitrogen. Therefore, the SBR system is not suitable for treating wastewater containing PFOS. It is necessary to remove PFOS through pretreatment to reduce its impact on the SBR system.
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Affiliation(s)
- Jing Ji
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environment Pollution, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, PR China
| | - Liang Peng
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environment Pollution, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, PR China
| | - M M Redina
- Peoples' Friendship University of Russia, 117198, Moscow, Miklukho-Maklaya str., 6, Russia
| | - Tianpeng Gao
- School of Biological and Environmental Engineering, Xi'an University, Xi'an, 710065, PR China
| | - Aman Khan
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environment Pollution, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, PR China
| | - Pu Liu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environment Pollution, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, PR China
| | - Xiangkai Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environment Pollution, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, PR China; Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Duanjiatanlu #1272, Lanzhou, 730020, PR China.
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Wang C, Dong J, Hu W, Li Y. Enhanced simultaneous removal of nitrate and perchlorate from groundwater by bioelectrochemical systems (BESs) with cathodic potential regulation. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108068] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Niziński P, Błażewicz A, Kończyk J, Michalski R. Perchlorate - properties, toxicity and human health effects: an updated review. REVIEWS ON ENVIRONMENTAL HEALTH 2021; 36:199-222. [PMID: 32887207 DOI: 10.1515/reveh-2020-0006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Interest in perchlorate as environmental pollutant has increased since 1997, when high concentrations have been found in the waters of the Colorado River, USA. Perchlorate is very persistent in nature and it is slowly degraded. Although harmful effects of large doses of perchlorate on thyroid function have been proven, the environmental effects are still unclear. The primary objective of the present review is to collect prevailing data of perchlorate exposure and to discuss its impact on human health. The results show that more than 50% of reviewed works found significant associations of perchlorate exposure and human health. This review consists of the following sections: general information of perchlorate sources, its properties and determination methods, role and sources in human body including food and water intake, overview of the scientific literature on the research on the effect of perchlorate on human health from 2010 to 2020. Finally, conclusions and recommendations on future perchlorate studies concerning human exposure are presented.
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Affiliation(s)
- Przemysław Niziński
- Chair of Chemistry, Department of Analytical Chemistry, Medical University of Lublin, Lublin, Poland
| | - Anna Błażewicz
- Chair of Chemistry, Department of Analytical Chemistry, Medical University of Lublin, Lublin, Poland
| | - Joanna Kończyk
- Institute of Chemistry, Health and Food Sciences, Faculty of Mathematics and Natural Sciences, Jan Dlugosz University in Czestochowa, Czestochowa, Poland
| | - Rajmund Michalski
- Institute of Chemistry, Health and Food Sciences, Faculty of Mathematics and Natural Sciences, Jan Dlugosz University in Czestochowa, Czestochowa, Poland
- Institute of Environmental Engineering, Polish Academy of Sciences, Zabrze, Poland
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Liu W, Lian J, Guo J, Guo Y, Yue L, Niu Y, Duan L. Perchlorate bioreduction by anaerobic granular sludge immobilised with Fe-HA complex: Performance, extracellular polymeric substances and microbial community structure. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122898. [PMID: 32464563 DOI: 10.1016/j.jhazmat.2020.122898] [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: 03/08/2020] [Revised: 04/19/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
An iron-humic acid (Fe-HA) complex was used as a redox mediator in perchlorate (ClO4-) bioreduction. Bioreduction performance, extracellular polymeric substances (EPS), and microbial community structure were comprehensively explored using different types of anaerobic granular sludge (AnGS) immobilised without the Fe-HA complex (AnGSCON) and with the Fe-HA complex (AnGSFH). The ClO4- was completely removed by AnGSCON by day 20, while the ClO4- was completely removed by AnGSFH by day 6. The AnGS immobilised with the Fe-HA complex significantly increased the ClO4- bioreduction. The acceleration of ClO4- bioreduction was also explained by the mixed liquor volatile suspended solids (MLVSS), MLVSS/mixed liquor suspended solids (MLSS), EPS composition, and microbial community structure. Compared with AnGSCON, the MLVSS and MLVSS/MLSS of the AnGSFH increased 1.4- and 1.2-fold, respectively. Humic substances in the EPS were stimulated by the Fe-HA complex. The microbial community structure analysis indicated that perchlorate and quinone reducing bacteria were enriched by the Fe-HA complex. Based on the analysis, the ClO4- bioreduction mechanism of the AnGSFH was revealed because the Fe-HA complex in the AnGS increased the biomass concentration, biological activity, and redox-active mediator and shifted the microbial community structure.
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Affiliation(s)
- Weilong Liu
- School of Environmental Science and Engineering Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, PR China; China Nuclear Power Engineering Co., Ltd. Hebei Branch, Yuhua East Road 56#, Shijiazhuang, 050019, PR China
| | - Jing Lian
- School of Environmental Science and Engineering Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, PR China.
| | - Jianbo Guo
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26#, Tianjin, 300384, PR China.
| | - Yankai Guo
- School of Environmental Science and Engineering Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, PR China
| | - Lin Yue
- School of Environmental Science and Engineering Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, PR China
| | - Yanyan Niu
- School of Environmental Science and Engineering Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, PR China
| | - Lili Duan
- School of Environmental Science and Engineering Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, PR China
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