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Chen A, Li H, Wu H, Song Z, Chen Y, Zhang H, Pang Z, Qin Z, Wu Y, Guan X, Huang H, Li Z, Qiu G, Wei C. Anaerobic cyanides oxidation with bimetallic modulation of biological toxicity and activity for nitrite reduction. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134540. [PMID: 38733787 DOI: 10.1016/j.jhazmat.2024.134540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
Cyanide is a typical toxic reducing agent prevailing in wastewater with a well-defined chemical mechanism, whereas its exploitation as an electron donor by microorganisms is currently understudied. Given that conventional denitrification requires additional electron donors, the cyanide and nitrogen can be eliminated simultaneously if the reducing HCN/CN- and its complexes are used as inorganic electron donors. Hence, this paper proposes anaerobic cyanides oxidation for nitrite reduction, whereby the biological toxicity and activity of cyanides are modulated by bimetallics. Performance tests illustrated that low toxicity equivalents of iron-copper composite cyanides provided higher denitrification loads with the release of cyanide ions and electrons from the complex structure by the bimetal. Both isotopic labeling and Density Functional Theory (DFT) demonstrated that CN--N supplied electrons for nitrite reduction. The superposition of chemical processes reduces the biotoxicity and enhances the biological activity of cyanides in the CN-/Fe3+/Cu2+/NO2- coexistence system, including complex detoxification of CN- by Fe3+, CN- release by Cu2+ from [Fe(CN)6]3-, and NO release by nitrite substitution of -CN groups. Cyanide is the smallest structural unit of C/N-containing compounds and serves as a probe to extend the electron-donating principle of anaerobic cyanides oxidation to more electron-donor microbial utilization.
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Affiliation(s)
- Acong Chen
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Haoling Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Haizhen Wu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong 510006, PR China.
| | - Zhaohui Song
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Yao Chen
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Heng Zhang
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Zijun Pang
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Zhi Qin
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Yulun Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Xianghong Guan
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Hua Huang
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Zemin Li
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China; School of Environment, South China Normal University, Guangzhou, Guangdong 510006, PR China
| | - Guanglei Qiu
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Chaohai Wei
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, PR China; School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong 510006, PR China.
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2
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An Overview of Emerging Cyanide Bioremediation Methods. Processes (Basel) 2022. [DOI: 10.3390/pr10091724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Cyanide compounds are hazardous compounds which are extremely toxic to living organisms, especially free cyanide in the form of hydrogen cyanide gas (HCN) and cyanide ion (CN−). These cyanide compounds are metabolic inhibitors since they can tightly bind to the metals of metalloenzymes. Anthropogenic sources contribute significantly to CN− contamination in the environment, more specifically to surface and underground waters. The treatment processes, such as chemical and physical treatment processes, have been implemented. However, these processes have drawbacks since they generate additional contaminants which further exacerbates the environmental pollution. The biological treatment techniques are mostly overlooked as an alternative to the conventional physical and chemical methods. However, the recent research has focused substantially on this method, with different reactor configurations that were proposed. However, minimal attention was given to the emerging technologies that sought to accelerate the treatment with a subsequent resource recovery from the process. Hence, this review focuses on the recent emerging tools that can be used to accelerate cyanide biodegradation. These tools include, amongst others, electro-bioremediation, anaerobic biodegradation and the use of microbial fuel cell technology. These processes were demonstrated to have the possibility of producing value-added products, such as biogas, co-factors of neurotransmitters and electricity from the treatment process.
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Malmir N, Zamani M, Motallebi M, Fard NA, Mekuto L. Cyanide Biodegradation by Trichoderma harzianum and Cyanide Hydratase Network Analysis. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103336. [PMID: 35630813 PMCID: PMC9143735 DOI: 10.3390/molecules27103336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 11/23/2022]
Abstract
Cyanide is a poisonous and dangerous chemical that binds to metals in metalloenzymes, especially cytochrome C oxidase and, thus, interferes with their functionalities. Different pathways and enzymes are involved during cyanide biodegradation, and cyanide hydratase is one of the enzymes that is involved in such a process. In this study, cyanide resistance and cyanide degradation were studied using 24 fungal strains in order to find the strain with the best capacity for cyanide bioremediation. To confirm the capacity of the tested strains, cyano-bioremediation and the presence of the gene that is responsible for the cyanide detoxification was assessed. From the tested organisms, Trichoderma harzianum (T. harzianum) had a significant capability to resist and degrade cyanide at a 15 mM concentration, where it achieved an efficiency of 75% in 7 days. The gene network analysis of enzymes that are involved in cyanide degradation revealed the involvement of cyanide hydratase, dipeptidase, carbon–nitrogen hydrolase-like protein, and ATP adenylyltransferase. This study revealed that T. harzianum was more efficient in degrading cyanide than the other tested fungal organisms, and molecular analysis confirmed the experimental observations.
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Affiliation(s)
- Narges Malmir
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Mohammadreza Zamani
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Mostafa Motallebi
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Najaf Allahyari Fard
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Lukhanyo Mekuto
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
- Correspondence: ; Tel.: +27-(0)-11-559-9212
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4
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Ma H, Hu Y, Wu J, Kobayashi T, Xu KQ, Kuramochi H. Enhanced anaerobic digestion of tar solution from rice husk thermal gasification with hybrid upflow anaerobic sludge-biochar bed reactor. BIORESOURCE TECHNOLOGY 2022; 347:126688. [PMID: 35017086 DOI: 10.1016/j.biortech.2022.126688] [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: 12/14/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Tar generated as a by-product during biomass gasification contains a high concentration of refractory organic matters. In this study, a hybrid upflow anaerobic sludge-biochar bed reactor was established for tar treatment, and the methane yield was 120-154 NmL-CH4/g-CODinf, 20-30% higher than the control reactor. COD removal and methane production significantly decreased in both reactors when the influent tar concentration was doubled from 4954 mg-COD/L to 9964 mg-COD/L. When the influent concentration was reduced, the biochar packed reactor showed a faster recovery. Batch tests confirmed that higher tar concentration inhibited methane production and induced longer lagphase. Biochar addition effectively relieved the inhibition and prolonged the retention of organic matters. SEM observation and 16S rRNA analysis suggested that biochar also acted as the microbe's carrier, and promoted the growth of some microbes. The results of this study provide new ideas for tar treatment.
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Affiliation(s)
- Haiyuan Ma
- College of Environment and Ecology, Chongqing University, 400045, PR China; Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Yong Hu
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jiang Wu
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Takuro Kobayashi
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan.
| | - Kai-Qin Xu
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, PR China
| | - Hidetoshi Kuramochi
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
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Tian L, Chen P, Jiang XH, Chen LS, Tong LL, Yang HY, Fan JP, Wu DS, Zou JP, Luo SL. Mineralization of cyanides via a novel Electro-Fenton system generating •OH and •O 2. WATER RESEARCH 2022; 209:117890. [PMID: 34856430 DOI: 10.1016/j.watres.2021.117890] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
Traditional methods of cyanides' (CN-) mineralization cannot overcome the contradiction between the high alkalinity required for the inhibition of hydrogen cyanide evolution and the low alkalinity required for the efficient hydrolysis of cyanate (CNO-) intermediates. Thus, in this study, a novel Electro-Fenton system was constructed, in which the free cyanides released from ferricyanide photolysis can be efficiently mineralized by the synergy of •OH and •O2-. The complex bonds in ferricyanide (100 mL, 0.25 mM) were completely broken within 80 min under ultraviolet radiation, releasing free cyanides. Subsequently, in combination with the heterogeneous Electro-Fenton process, •OH and •O2- were simultaneously generated and 92.9% of free cyanides were transformed into NO3- within 120 min. No low-toxic CNO- intermediates were accumulated during the Electro-Fenton process. A new conversion mechanism was proposed that CN- was activated into electron-deficient cyanide radical (•CN) by •OH, and then the •CN intermediates reacted with •O2- via nucleophilic addition to quickly form NO3-, preventing the formation of CNO- and promoting the mineralization of cyanide. Furthermore, this new strategy was used to treat the actual cyanide residue eluent, achieving rapid recovery of irons and efficient mineralization of cyanides. In conclusion, this study proposes a new approach for the mineralization treatment of cyanide-containing wastewater.
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Affiliation(s)
- Lei Tian
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Peng Chen
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, China
| | - Xun-Heng Jiang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Li-Sha Chen
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Lin-Lin Tong
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Hong-Ying Yang
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Jie-Ping Fan
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Dai-She Wu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Jian-Ping Zou
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China.
| | - Sheng-Lian Luo
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, China
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6
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Performance and dynamic characteristics of microbial communities in multi-stage anaerobic reactors treating gibberellin wastewater. J Biosci Bioeng 2019; 127:318-325. [DOI: 10.1016/j.jbiosc.2018.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 11/28/2017] [Accepted: 05/24/2018] [Indexed: 01/19/2023]
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7
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Gupta P, Sreekrishnan TR, Shaikh ZA. Application of hybrid anaerobic reactor: Treatment of increasing cyanide containing effluents and microbial composition identification. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 226:448-456. [PMID: 30144783 DOI: 10.1016/j.jenvman.2018.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 08/01/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
The study endeavors the anaerobic treatment of cyanide-containing effluents using the hybrid anaerobic reactor, with self-immobilized granules under high up-flow velocities. Comparison of one-year time-course analyses of HARs treating high strength effluents containing cyanide and control indicates the importance of wastewater characteristics in development and maintenance of microbiome. Efforts were directed towards associating process performance with microbial dynamics. Presence of cyanide results in the accumulation of intermediates paralleled with a drop in abundance of sensitive aceticlastic methanogens. HAR appear to have better resilience than other identified digesters because of shielding effects and enhanced granule-wastewater contact. The predominance of Methanobacteriales in the presence of cyanide can be linked to its tolerance. It was found that methane yield is positively correlated with abundance of aceticlastic guilds (R = 0.830, CI = 0.01). Tolerant bacterial groups were also identified. The study advances our knowledge related to less energy intensive technology with the focus on the development of efficient HAR.
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Affiliation(s)
- Pragya Gupta
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - T R Sreekrishnan
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Z A Shaikh
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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8
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Glanpracha N, Basnayake BMN, Rene ER, Lens PNL, Annachhatre AP. Cyanide degradation kinetics during anaerobic co-digestion of cassava pulp with pig manure. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 2017:650-660. [PMID: 30016282 DOI: 10.2166/wst.2018.210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Anaerobic co-digestion of cassava pulp (CP) and pig manure (PM) under cyanide inhibition conditions was investigated and modeled. Batch experiments were performed with initial cyanide concentrations ranging from 1.5 to 10 mg/L. Cyanide acclimatized sludge from an anaerobic co-digester treating cyanide-containing CP and PM was used as the seed sludge (inoculum). Cyanide degradation during anaerobic digestion consisted of an initial lag phase, followed by a cyanide degradation phase. After a short sludge acclimatization period of less than 3 days, the anaerobic sludge was able to degrade cyanide, indicating that the sludge inhibition due to cyanide was reversible. Cyanide degradation during anaerobic co-digestion of CP and PM followed the first-order kinetics with a rate constant of 0.094 d-1. Gas evolution during batch anaerobic degradation was modeled using the modified Monod-type kinetics to incorporate cyanide inhibition. The model predicted results yielded a satisfactory fit with the experimental data.
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Affiliation(s)
- Naraporn Glanpracha
- Environmental Engineering and Management, School of Environment Resources and Development, Asian Institute of Technology, Pathumthani 12120, Thailand E-mail: ; Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathumthani 12110, Thailand
| | - B M N Basnayake
- Environmental Engineering and Management, School of Environment Resources and Development, Asian Institute of Technology, Pathumthani 12120, Thailand E-mail:
| | - Eldon R Rene
- UNESCO-IHE Institute for Water Education, Westvest 7, 2601 DA Delft, The Netherlands
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, Westvest 7, 2601 DA Delft, The Netherlands
| | - Ajit P Annachhatre
- Environmental Engineering and Management, School of Environment Resources and Development, Asian Institute of Technology, Pathumthani 12120, Thailand E-mail:
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Molecular insights into the activity and mechanism of cyanide hydratase enzyme associated with cyanide biodegradation by Serratia marcescens. Arch Microbiol 2018; 200:971-977. [DOI: 10.1007/s00203-018-1524-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/27/2018] [Accepted: 05/03/2018] [Indexed: 10/16/2022]
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10
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Repinc SK, Šket R, Zavec D, Mikuš KV, Fermoso FG, Stres B. Full-scale agricultural biogas plant metal content and process parameters in relation to bacterial and archaeal microbial communities over 2.5 year span. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 213:566-574. [PMID: 29477353 DOI: 10.1016/j.jenvman.2018.02.058] [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: 11/16/2017] [Revised: 02/02/2018] [Accepted: 02/14/2018] [Indexed: 06/08/2023]
Abstract
A start-up of 4 MW agricultural biogas plant in Vučja vas, Slovenia, was monitored from 2011 to 2014. The start-up was carried out in 3 weeks with the intake of biomass from three operating full-scale 1-2 MW donor agricultural biogas plants. The samples were taken from donor digesters and from two serial digesters during the start-up over the course of 2.5 years. Bacterial and Archaeal microbial communities progressively diverged from the composition of donor digesters during the start-up phase. The rate of change of Bacterial community decreased exponentially over the first 2.5 years as dynamics within the first 70 days was comparable to that of the next 1.5 years, whereas approximately constant rate was observed for Archaea. Despite rearrangements, the microbial communities remained functionally stable and produced biogas throughout the whole 2.5 years of observation. All systems parameters measured were ordered according to their Kernel density (Gaussian function) ranging from the most dispersed (substrate categories used as cosubstrates, quantities of each cosubstrate, substate dry and volatile matter, process parameters) towards progressively least dispersed (trace metal and ion profiles, aromatic-polyphenolic compounds, biogas plant functional output (energy)). No deficiency was detected in trace metal content as the distribution of metals and elements fluctuated within the suggested limits for biogas over 2.5 year observation. In contrast to the recorded process variables, Bacterial and Archaeal microbial communities exhibited directed changes oriented in time. Variation partitioning showed that a large fraction of variability in the Bacterial and Archaeal microbial communities (55% and 61%, respectively) remained unexplained despite numerous measured variables (n = 44) and stable biogas production. Our results show that the observed reorganization of microbial communities was not directly associated with impact on the full-scale biogas reactor performance. Novel parameters need to be determined to elucidate the variables directly associated with the reorganization of microbial communities and those relevant for sustained function such as the more in-depth interaction between TSOC, trace metal profiles, aromatic-polyphenolic compounds and ionic strength (e.g. electrical conductivity).
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Affiliation(s)
- Sabina Kolbl Repinc
- Institute of Sanitary Engineering, Faculty of Civil and Geodetic Engineering, Jamova 2, Ljubljana, Slovenia
| | - Robert Šket
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, Slovenia
| | - Domen Zavec
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, Slovenia
| | - Katarina Vogel Mikuš
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, Slovenia
| | | | - Blaž Stres
- Institute of Sanitary Engineering, Faculty of Civil and Geodetic Engineering, Jamova 2, Ljubljana, Slovenia; Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, Slovenia; University of Ljubljana, Faculty of Medicine, Ljubljana, Vrazov trg 2, Ljubljana, Slovenia.
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11
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Liu Q, Zhang G, Ding J, Zou H, Shi H, Huang C. Evaluation of the Removal of Potassium Cyanide and its Toxicity in Green Algae (Chlorella vulgaris). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 100:228-233. [PMID: 29159542 DOI: 10.1007/s00128-017-2208-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 11/02/2017] [Indexed: 06/07/2023]
Abstract
To evaluate the removal of potassium cyanide (KCN) and its toxicity in algae, an initial comprehensive analysis was performed with Chlorella vulgaris. The algae showed potential removal capability for KCN, with the maximal removal rate of 61%. Moreover, effects of KCN on growth, cellular morphology and antioxidant defense system of C. vulgaris were evaluated. Cell number and chlorophyll a content decreased in most cases, with the maximal inhibition rates of 48% and 99%, respectively. The 100 mg L- 1 KCN seriously damaged the algal cell membrane. Additionally, activity of superoxide dismutase (SOD) was promoted by KCN exposure among 0.1-50 mg L- 1 and inhibited by 100 mg L- 1 KCN, while the malondialdehyde (MDA) content gradually decreased in C. vulgaris with increasing exposure concentration compared to the control. The present study reveals that C. vulgaris is useful in bio-treatment of cyanide-contaminated aquatic ecosystem, except in high concentrations which would cause overwhelming effects.
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Affiliation(s)
- Qingqing Liu
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Guangsheng Zhang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou, 215009, People's Republic of China
| | - Jiannan Ding
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou, 215009, People's Republic of China
| | - Hua Zou
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, People's Republic of China.
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou, 215009, People's Republic of China.
| | - Hongxing Shi
- State Key Laboratory of NBC Protection for Civilian, Institute of Chemical Defence, Beijing, 102205, People's Republic of China
| | - Chaoqun Huang
- State Key Laboratory of NBC Protection for Civilian, Institute of Chemical Defence, Beijing, 102205, People's Republic of China
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12
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Luque-Almagro VM, Cabello P, Sáez LP, Olaya-Abril A, Moreno-Vivián C, Roldán MD. Exploring anaerobic environments for cyanide and cyano-derivatives microbial degradation. Appl Microbiol Biotechnol 2017; 102:1067-1074. [PMID: 29209795 PMCID: PMC5778177 DOI: 10.1007/s00253-017-8678-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/23/2017] [Accepted: 11/24/2017] [Indexed: 11/25/2022]
Abstract
Cyanide is one of the most toxic chemicals for living organisms described so far. Its toxicity is mainly based on the high affinity that cyanide presents toward metals, provoking inhibition of essential metalloenzymes. Cyanide and its cyano-derivatives are produced in a large scale by many industrial activities related to recovering of precious metals in mining and jewelry, coke production, steel hardening, synthesis of organic chemicals, and food processing industries. As consequence, cyanide-containing wastes are accumulated in the environment becoming a risk to human health and ecosystems. Cyanide and related compounds, like nitriles and thiocyanate, are degraded aerobically by numerous bacteria, and therefore, biodegradation has been offered as a clean and cheap strategy to deal with these industrial wastes. Anaerobic biological treatments are often preferred options for wastewater biodegradation. However, at present very little is known about anaerobic degradation of these hazardous compounds. This review is focused on microbial degradation of cyanide and related compounds under anaerobiosis, exploring their potential application in bioremediation of industrial cyanide-containing wastes.
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Affiliation(s)
- Víctor M Luque-Almagro
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Edificio Severo Ochoa, 1ª planta, Campus de Rabanales, 14071, Córdoba, Spain
| | - Purificación Cabello
- Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de Córdoba, Edificio Celestino Mutis, Campus de Rabanales, 14071, Córdoba, Spain
| | - Lara P Sáez
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Edificio Severo Ochoa, 1ª planta, Campus de Rabanales, 14071, Córdoba, Spain
| | - Alfonso Olaya-Abril
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Edificio Severo Ochoa, 1ª planta, Campus de Rabanales, 14071, Córdoba, Spain
| | - Conrado Moreno-Vivián
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Edificio Severo Ochoa, 1ª planta, Campus de Rabanales, 14071, Córdoba, Spain
| | - María Dolores Roldán
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Edificio Severo Ochoa, 1ª planta, Campus de Rabanales, 14071, Córdoba, Spain.
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13
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Gupta P, Ahammad SZ, Sreekrishnan TR. Improving the cyanide toxicity tolerance of anaerobic reactor: Microbial interactions and toxin reduction. JOURNAL OF HAZARDOUS MATERIALS 2016; 315:52-60. [PMID: 27179200 DOI: 10.1016/j.jhazmat.2016.04.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 03/30/2016] [Accepted: 04/12/2016] [Indexed: 06/05/2023]
Abstract
Anaerobic biological treatment of high organics containing wastewater is amongst the preferred treatment options but poor tolerance to toxins makes its use prohibitive. In this study, efforts have been made to understand the key parameters for developing anaerobic reactor, resilient to cyanide toxicity. A laboratory scale anaerobic batch reactor was set up to treat cyanide containing wastewater. The reactor was inoculated with anaerobic sludge obtained from a wastewater treatment plant and fresh cow dung in the ratio of 3:1. The focus was on acclimatization and development of cyanide-degrading biomass and to understand the toxic effects of cyanide on the dynamic equilibrium between various microbial groups. The sludge exposed to cyanide was found to have higher bacterial diversity than the control. It was observed that certain hydrogenotrophic methanogens and bacterial groups were able to grow and produce methane in the presence of cyanide. Also, it was found that hydrogen utilizing methanogens were more cyanide tolerant than acetate utilizing methanogens. So, effluents from various industries like electroplating, coke oven plant, petroleum refining, explosive manufacturing, and pesticides industries which are having high concentrations of cyanide can be treated by favoring the growth of the tolerant microbes in the reactors. It will provide much better treatment efficiency by overcoming the inhibitory effects of cyanide to certain extent.
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Affiliation(s)
- Pragya Gupta
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - S Z Ahammad
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - T R Sreekrishnan
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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14
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Glanpracha N, Annachhatre AP. Anaerobic co-digestion of cyanide containing cassava pulp with pig manure. BIORESOURCE TECHNOLOGY 2016; 214:112-121. [PMID: 27128196 DOI: 10.1016/j.biortech.2016.04.079] [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: 02/13/2016] [Revised: 04/11/2016] [Accepted: 04/16/2016] [Indexed: 06/05/2023]
Abstract
Anaerobic co-digestion of cyanide-containing cassava pulp with pig manure was evaluated using laboratory scale mesophilic digester. The digester was operated in a semi-continuous mode with the mixed feedstock having C/N ratio of 35:1. Digester startup was accomplished in 60days with loading of 0.5-1kgVS/m(3)d. Subsequently, the loading to digester was increased step-wise from 2 to 9kgVS/m(3)d. Digester performance was stable at loading between 2 and 6kgVS/m(3)d with an average volatile solid removal and methane yield of 82% and 0.38m(3)/kgVSadded, respectively. However, beyond loading of 7kgVS/m(3)d, solubilization of particulate matter did not take place efficiently. Cyanide present in cassava pulp was successfully degraded indicating that anaerobic sludge in the digester was well acclimatized to cyanide. The results show that cassava pulp can be successfully digested anaerobically with pig manure as co-substrate without any inhibitory effect of cyanide present in the cassava pulp.
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Affiliation(s)
- Naraporn Glanpracha
- Environmental Engineering and Management, School of Environment Resources and Development, Asian Institute of Technology, Pathumthani 12120, Thailand
| | - Ajit P Annachhatre
- Environmental Engineering and Management, School of Environment Resources and Development, Asian Institute of Technology, Pathumthani 12120, Thailand.
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15
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Razanamahandry LC, Andrianisa HA, Karoui H, Kouakou KM, Yacouba H. Biodegradation of free cyanide by bacterial species isolated from cyanide-contaminated artisanal gold mining catchment area in Burkina Faso. CHEMOSPHERE 2016; 157:71-78. [PMID: 27209555 DOI: 10.1016/j.chemosphere.2016.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 05/05/2016] [Accepted: 05/09/2016] [Indexed: 06/05/2023]
Abstract
Soil and water samples were collected from a watershed in Burkina Faso where illegal artisanal gold extraction using cyanidation occurs. The samples were used to evaluate cyanide contamination and the presence of cyanide degrading bacteria (CDB). Free cyanide (F-CN) was detected in all samples, with concentrations varying from 0.023 to 0.9 mg kg(-1), and 0.7-23 μg L(-1) in the soil and water samples, respectively. Potential CDB also were present in the samples. To test the effective F-CN degradation capacity of the isolated CDB species, the species were cultivated in growth media containing 40, 60 or 80 mg F-CN L(-1), with or without nutrients, at pH 9.5 and at room temperature. More than 95% of F-CN was degraded within 25 h, and F-CN degradation was associated with bacterial growth and ammonium production. However, initial concentrations of F-CN higher than 100 mg L(-1) inhibited bacterial growth and cyanide degradation. Abiotic tests showed that less than 3% of F-CN was removed by volatilization. Thus, the degradation of F-CN occurred predominately by biological mechanisms, and such mechanisms are recommended for remediation of contaminated soil and water. The bacteria consortium used in the experiment described above exist in a Sahelian climate, which is characterized by a long hot and dry season. Because the bacteria are already adapted to the local climate conditions and show the potential for cyanide biodegradation, further applicability to other contaminated areas in West Africa, where illegal gold cyanidation is widespread, should be explored.
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Affiliation(s)
- Lovasoa Christine Razanamahandry
- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Decontamination, Ecosystem and Health (LEDES), 01 PO Box 594, 01, Ouagadougou, Burkina Faso.
| | - Harinaivo Anderson Andrianisa
- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Decontamination, Ecosystem and Health (LEDES), 01 PO Box 594, 01, Ouagadougou, Burkina Faso
| | - Hela Karoui
- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Decontamination, Ecosystem and Health (LEDES), 01 PO Box 594, 01, Ouagadougou, Burkina Faso
| | - Koffi Marcelin Kouakou
- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Decontamination, Ecosystem and Health (LEDES), 01 PO Box 594, 01, Ouagadougou, Burkina Faso
| | - Hamma Yacouba
- International Institute for Water and Environmental Engineering (2iE), Laboratory of Water Resource and Hydrology (LEAH), 01 PO Box 594, 01, Ouagadougou, Burkina Faso
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16
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Sabatini L, Battistelli M, Giorgi L, Iacobucci M, Gobbi L, Andreozzi E, Pianetti A, Franchi R, Bruscolini F. Tolerance to silver of an Aspergillus fumigatus strain able to grow on cyanide containing wastes. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:115-123. [PMID: 26705888 DOI: 10.1016/j.jhazmat.2015.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 12/01/2015] [Accepted: 12/09/2015] [Indexed: 06/05/2023]
Abstract
We studied the strategy of an Aspergillus fumigatus strain able to grow on metal cyanide wastes to cope with silver. The tolerance test revealed that the Minimum Inhibitory Concentration of Ag(I) was 6mM. In 1mM AgNO3 aqueous solution the fungus was able to reduce and sequestrate silver into the cell in the form of nanoparticles as evidenced by the change in color of the biomass and Electron Microscopy observations. Extracellular silver nanoparticle production also occurred in the filtrate solution after previous incubation of the fungus in sterile, double-distilled water for 72h, therefore evidencing that culture conditions may influence nanoparticle formation. The nanoparticles were characterized by UV-vis spectrometry, X-ray diffraction and Energy Dispersion X-ray analysis. Atomic absorption spectrometry revealed that the optimum culture conditions for silver absorption were at pH 8.5.The research is part of a polyphasic study concerning the behavior of the fungal strain in presence of metal cyanides; the results provide better understanding for further research targeted at a rationale use of the microorganism in bioremediation plans, also in view of possible metal recovery. Studies will be performed to verify if the fungus maintains its ability to produce nanoparticles using KAg(CN)2.
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Affiliation(s)
- L Sabatini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy
| | - M Battistelli
- Department of Earth, Life Sciences & Environment, University of Urbino Carlo Bo, Italy
| | - L Giorgi
- Department of Base Sciences and Foundations, Chemistry Section, University of Urbino Carlo Bo, Italy
| | - M Iacobucci
- Department of Earth, Life Sciences & Environment, University of Urbino Carlo Bo, Italy
| | - L Gobbi
- Department of Science and Engineering of Matter, of Environment and Urban Planning, Polytechnic University of Marche, Ancona, Italy
| | - E Andreozzi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy
| | - A Pianetti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy
| | - R Franchi
- Department of Base Sciences and Foundations, Chemistry Section, University of Urbino Carlo Bo, Italy
| | - F Bruscolini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Italy.
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Abundance and diversity of bacterial nitrifiers and denitrifiers and their functional genes in tannery wastewater treatment plants revealed by high-throughput sequencing. PLoS One 2014; 9:e113603. [PMID: 25420093 PMCID: PMC4242629 DOI: 10.1371/journal.pone.0113603] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 10/26/2014] [Indexed: 11/25/2022] Open
Abstract
Biological nitrification/denitrification is frequently used to remove nitrogen from tannery wastewater containing high concentrations of ammonia. However, information is limited about the bacterial nitrifiers and denitrifiers and their functional genes in tannery wastewater treatment plants (WWTPs) due to the low-throughput of the previously used methods. In this study, 454 pyrosequencing and Illumina high-throughput sequencing, combined with molecular methods, were used to comprehensively characterize structures and functions of nitrification and denitrification bacterial communities in aerobic and anaerobic sludge of two full-scale tannery WWTPs. Pyrosequencing of 16S rRNA genes showed that Proteobacteria and Synergistetes dominated in the aerobic and anaerobic sludge, respectively. Ammonia-oxidizing bacteria (AOB) amoA gene cloning revealed that Nitrosomonas europaea dominated the ammonia-oxidizing community in the WWTPs. Metagenomic analysis showed that the denitrifiers mainly included the genera of Thauera, Paracoccus, Hyphomicrobium, Comamonas and Azoarcus, which may greatly contribute to the nitrogen removal in the two WWTPs. It is interesting that AOB and ammonia-oxidizing archaea had low abundance although both WWTPs demonstrated high ammonium removal efficiency. Good correlation between the qPCR and metagenomic analysis is observed for the quantification of functional genes amoA, nirK, nirS and nosZ, indicating that the metagenomic approach may be a promising method used to comprehensively investigate the abundance of functional genes of nitrifiers and denitrifiers in the environment.
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