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Yeruva DK, S VM. Electrogenic engineered flow through tri-phasic wetland system for azo dye treatment: Microbial dynamics and functional metagenomics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 334:122107. [PMID: 37369299 DOI: 10.1016/j.envpol.2023.122107] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/12/2023] [Accepted: 06/24/2023] [Indexed: 06/29/2023]
Abstract
Electrogenic engineered flow through tri-phasic wetland (EEFW) system based on nature-based ecological principles was studied by integrating successive biological microenvironments. The potential mechanism of the plant root-based microbial community and its functional diversity with the influence of plant-microbe-electrode synergism towards dye degradation was evaluated. The EEFW system was operated at three varied dye loads of 10, 25 and 50 mg L-1, where the results from the cumulative outlets revealed a maximum dye removal efficiency of 96%, 96.5% and 93%, respectively. Microbial community analysis depicted synergistic dependence on the plant-microbe-electrode interactions, influencing their functional diversity and metabolism towards detoxification of pollutants. The core microbial taxa enriched against the microenvironment variation were mostly associated with carbon and dye removal viz., Desulfomonile tiedjei and Rhodopseudomonas palustris in Tank 1 and Chloroflexi bacterium and Steroidobacter denitrificans in Tank 2. The degradation of polycyclic aromatic hydrocarbons, chloroalkane/chloroalkene, nitrotoluene, bisphenol, caprolactam and 1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane (DDT) were observed to be predominant in Tank 1. EEFW system could be one of the option for utilizing nature-based processes for the treatment of wastewater by self-induced bioelectrogenesis to augment process efficiency.
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Affiliation(s)
- Dileep Kumar Yeruva
- Bioengineering and Environmental Science Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500 007, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Venkata Mohan S
- Bioengineering and Environmental Science Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500 007, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India.
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2
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Basharat Z, Asghar S, Yasmin A. Leveraging molecular docking to understand Congo red degradation by Staphylococcus caprae MB400. Arch Microbiol 2023; 205:250. [PMID: 37243783 DOI: 10.1007/s00203-023-03591-z] [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: 02/21/2023] [Revised: 04/11/2023] [Accepted: 05/18/2023] [Indexed: 05/29/2023]
Abstract
Congo red (CR) is a genotoxic, sulphonated azo dye and poses significant pollution problem. We hereby report its degradation by Staphylococcus caprae MB400. The bacterium initially propagated as a suspected contaminant upon CR dye supplemented nutrient agar plates, forming zones of clearance around its growth area. The bacterium was purified, gram stained and identified as Staphylococcus caprae via 16S rRNA gene sequencing. Dye decolourization was analysed in liquid culture, and Fourier-transform infrared spectroscopy (FTIR) was conducted for analysis of degraded product/metabolites. A decolourization of ~ 96.0% at 100 µg/ml concentration and pH 7 after 24 h of incubation was observed. Structure of the azoreductase enzyme, responsible for breakage of the bond in the dye and ultimately decolourization, was predicted, and molecular docking was harnessed for understanding the mechanism behind the reduction of azo bond (-N=N-) and conversion to metabolites. Our analysis revealed 12 residues critical for structural interaction of the azoreductase enzyme with this dye. Among these, protein backbone region surrounding four residues, i.e. Lys65, Phe122, Ile166 and Phe169, showed major displacement changes, upon binding with the dye. However, overall the conformational changes were not large.
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Affiliation(s)
- Zarrin Basharat
- Alpha Genomics (Private) Limited, Islamabad, 45710, Pakistan.
| | - Sehrish Asghar
- Environmental Science Program, College of Natural Resources, University of Idaho, Moscow, ID, 83843, USA
| | - Azra Yasmin
- Microbiology and Biotechnology Research Lab, Department of Biotechnology, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan.
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Kopperi H, Hemalatha M, Ravi Kiran B, Santhosh J, Venkata Mohan S. Sustainable consideration for traditional textile handloom cluster/village in pollution abatement - A case study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 324:121320. [PMID: 36805470 DOI: 10.1016/j.envpol.2023.121320] [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: 12/06/2022] [Revised: 02/03/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Decentralized handlooms are being traditionally practised throughout India. Siripuram village known for traditional Pochampally/Ikat work was considered as a case study for detailed investigation towards providing a sustainable solution. Nearly 65% of village population solely depend on weaving and dyeing works as primary occupation based on the household survey and generated wash water of 127 KLD on an average from the dyeing operations. Initially, a topographical survey (Aerial drone; PHANTOM 4 RTK UAV) was carried out to understand the drainage pattern, elevations, contours and interlinked with domestic and dyeing functions. The characteristics of combined wastewater and dye wash water were studied at lab scale using sequential batch (SBR) operation under aerobic (SBRAe) and aerobic-anoxic (SBRAex) microenvironments. SBRAex microenvironment showed effective organic and nutrients removal due to infused anoxic microenvironment. Treatment studies depicted 76.2% of organic fraction, 73.3% of phosphate, and 81.6% of nitrate removal. Based on the lab scale studies a closed-loop decentralized effluent treatment system was designed to ensure zero-liquid discharge (ZLD).
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Affiliation(s)
- Harishankar Kopperi
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manupati Hemalatha
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Boda Ravi Kiran
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India
| | - J Santhosh
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Althuri A, Tiwari ON, Gowda VTK, Moyong M, Venkata Mohan S. Small/Medium scale textile processing industries: case study, sustainable interventions and remediation. Chem Ind 2020. [DOI: 10.1080/00194506.2020.1821795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Avanthi Althuri
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering (DEEE), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Onkar Nath Tiwari
- Department of Biotechnology, Ministry of Science & Technology, New Delhi, India
| | - Vanitha T. K. Gowda
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering (DEEE), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Miyon Moyong
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering (DEEE), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - S. Venkata Mohan
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering (DEEE), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
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Yeruva DK, Shanthi Sravan J, Butti SK, Annie Modestra J, Venkata Mohan S. Spatial variation of electrode position in bioelectrochemical treatment system: Design consideration for azo dye remediation. BIORESOURCE TECHNOLOGY 2018; 256:374-383. [PMID: 29475145 DOI: 10.1016/j.biortech.2018.02.030] [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: 12/04/2017] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
In the present study, three bio-electrochemical treatment systems (BET) were designed with variations in cathode electrode placement [air exposed (BET1), partially submerged (BET2) and fully submerged (BET3)] to evaluate azo-dye based wastewater treatment at three dye loading concentrations (50, 250 and 500 mg L-1). Highest dye decolorization (94.5 ± 0.4%) and COD removal (62.2 ± 0.8%) efficiencies were observed in BET3 (fully submerged electrodes) followed by BET1 and BET2, while bioelectrogenic activity was highest in BET1 followed by BET2 and BET3. It was observed that competition among electron acceptors (electrode, dye molecules and intermediates) critically regulated the fate of bio-electrogenesis to be higher in BET1 and dye removal higher in BET3. Maximum half-cell potentials in BET3 depict higher electron acceptance by electrodes utilized for dye degradation. Study infers that spatial positioning of electrodes in BET3 is more suitable towards dye remediation, which can be considered for scaling-up/designing a treatment plant for large-scale industrial applications.
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Affiliation(s)
- Dileep Kumar Yeruva
- Bioengineering and Environmental Sciences Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India
| | - J Shanthi Sravan
- Bioengineering and Environmental Sciences Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India
| | - Sai Kishore Butti
- Bioengineering and Environmental Sciences Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India
| | - J Annie Modestra
- Bioengineering and Environmental Sciences Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Hyderabad, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
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Mandegari M, Fashandi H. Untapped potentials of acrylonitrile-butadiene-styrene/polyurethane (ABS/PU) blend membrane to purify dye wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 197:464-475. [PMID: 28412618 DOI: 10.1016/j.jenvman.2017.04.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/25/2017] [Accepted: 04/08/2017] [Indexed: 06/07/2023]
Abstract
Production of acrylonitrile-butadiene-styrene/polyurethane (ABS/PU) blend membrane with high rejection efficiency for disperse and vat dyes, is introduced as a facile and cost effective technique to purify textile wastewater. In this respect, membranes are produced using commercially available polymers, i.e. ABS and PU, with different compositions (ABS/PU: 100/0, 80/20, 70/30, 60/40 and 50/50 w/w) through wet casting. Casting solutions with concentration of 30 wt% are prepared using two different solvents, i.e. dimethylformamide (DMF) and N-methyl-2- pyrrolidone (NMP). The prepared membranes are characterized using a variety of analytical techniques including SEM imaging, FTIR spectroscopy, dry and wet gas permeation, evaluation of reusability, antifouling and mechanical properties, photostability, surface hydrophilicity and pure water permeability (PWP) of the produced membranes. According to the results, irrespective of solvent type, ABS/PU membranes with higher PU content have lower porosity and smaller pore size both of which contribute to enhanced dye rejection efficiency. This is while the impact of PU content on the photostability of ABS/PU membranes was found to be negligible. Additionally, the produced ABS/PU membranes exhibit good reusability and antifouling properties. However, the mechanical properties of ABS/PU membranes with higher PU contents are inferior to those with lower PU contents. This contrast highlights the prominence of optimum PU content to make a trade-off between dye rejection efficiency and mechanical properties. In this regard, ABS/PU (60/40 w/w) membrane is recognized as the one with optimum composition. Furthermore, it was found that regardless of PU content, membranes cast from DMF-based solutions exhibit superior rejection performance over those cast from NMP-based solutions. Overall, one can witness that employing ABS/PU membranes provides a meritorious and clean approach to refine disperse and vat dye wastewaters, a great threat to the environment and human health.
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Affiliation(s)
- Mansoor Mandegari
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Hossein Fashandi
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
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Catal T, Gover T, Yaman B, Droguetti J, Yilancioglu K. Hydrogen production profiles using furans in microbial electrolysis cells. World J Microbiol Biotechnol 2017; 33:115. [PMID: 28488198 DOI: 10.1007/s11274-017-2270-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 04/22/2017] [Indexed: 10/19/2022]
Abstract
Microbial electrochemical cells including microbial fuel cells (MFCs) and microbial electrolysis cells (MECs) are novel biotechnological tools that can convert organic substances in wastewater or biomass into electricity or hydrogen. Electroactive microbial biofilms used in this technology have ability to transfer electrons from organic compounds to anodes. Evaluation of biofilm formation on anode is crucial for enhancing our understanding of hydrogen generation in terms of substrate utilization by microorganisms. In this study, furfural and hydroxymethylfurfural (HMF) were analyzed for hydrogen generation using single chamber membrane-free MECs (17 mL), and anode biofilms were also examined. MECs were inoculated with mixed bacterial culture enriched using chloroethane sulphonate. Hydrogen was succesfully produced in the presence of HMF, but not furfural. MECs generated similar current densities (5.9 and 6 mA/cm2 furfural and HMF, respectively). Biofilm samples obtained on the 24th and 40th day of cultivation using aromatic compounds were evaluated by using epi-fluorescent microscope. Our results show a correlation between biofilm density and hydrogen generation in single chamber MECs.
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Affiliation(s)
- Tunc Catal
- Department of Molecular Biology and Genetics, Uskudar University, Uskudar, 34662, Istanbul, Turkey.
- Biotechnology Application and Research Center, Uskudar University, Uskudar, 34662, Istanbul, Turkey.
| | - Tansu Gover
- Department of Molecular Biology and Genetics, Uskudar University, Uskudar, 34662, Istanbul, Turkey
| | - Bugra Yaman
- Department of Molecular Biology and Genetics, Uskudar University, Uskudar, 34662, Istanbul, Turkey
| | - Jessica Droguetti
- Department of Bioengineering, Uskudar University, Uskudar, 34662, Istanbul, Turkey
| | - Kaan Yilancioglu
- Department of Bioengineering, Uskudar University, Uskudar, 34662, Istanbul, Turkey
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Cao Z, Zhang J, Zhang J, Zhang H. Degradation pathway and mechanism of Reactive Brilliant Red X-3B in electro-assisted microbial system under anaerobic condition. JOURNAL OF HAZARDOUS MATERIALS 2017; 329:159-165. [PMID: 28131972 DOI: 10.1016/j.jhazmat.2017.01.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/17/2017] [Accepted: 01/23/2017] [Indexed: 06/06/2023]
Abstract
The degradations of Reactive Brilliant Red X-3B (RBRX-3B) in an electric-assisted microbial system (EAMS), a microbial system (MS) and an electrochemical system (ECS) were compared. The degradation efficiency of RBRX-3B in EAMS (99.8%) was 10.8% higher than the sum in MS (61.9%) and ECS (27.1%) at 24h at the optimal voltage of 0.4V, indicating that there was a synergistic effect between the electrode reaction and the biodegradation. The RBRX-3B degradation in EAMS followed first-order kinetic model. The activation energy of RBRX-3B degradation in EAMS was calculated to be 60.53kJmol-1 by the Arrhenius equation, showing that the degradation rate of RBRX-3B mainly depended on bio-chemical reaction. RBRX-3B was degraded to both low-strength toxic compounds and nontoxic compounds in EAMS and those intermediates were easier to be further degraded. The pathway of RBRX-3B degradation in EAMS was different from that in MS.
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Affiliation(s)
- Zhanping Cao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Jinghui Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Jingli Zhang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China.
| | - Hongwei Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
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