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Imam A, Suman SK, Vasavdutta S, Chatterjee S, Vempatapu BP, Ray A, Kanaujia PK. Degradation of multiple PAHs and co-contaminants by microbial consortia and their toxicity assessment. Biodegradation 2024; 35:299-313. [PMID: 37792261 DOI: 10.1007/s10532-023-10055-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 09/21/2023] [Indexed: 10/05/2023]
Abstract
The anthropogenic activities toward meeting the energy requirements have resulted in an alarming rise in environmental pollution levels. Among pollutants, polycyclic aromatic hydrocarbons (PAHs) are the most predominant due to their persistent and toxic nature. Amidst the several pollutants depuration methods, bioremediation utilizing biodegradation is the most viable alternative. This study investigated the biodegradation efficacy using developed microbial consortium PBR-21 for 2-4 ringed PAHs named naphthalene (NAP), anthracene (ANT), fluorene (FLU), and pyrene (PYR). The removal efficiency was observed up to 100 ± 0.0%, 70.26 ± 4.2%, 64.23 ± 2.3%, and 61.50 ± 2.6%, respectively, for initial concentrations of 400 mg L-1 for NAP, ANT, FLU, and PYR respectively. Degradation followed first-order kinetics with rate constants of 0.39 d-1, 0.10 d-1, 0.08 d-1, and 0.07 d-1 and half-lifet 1 / 2 of 1.8 h, 7.2 h, 8.5 h, and 10 h, respectively. The microbial consortia were found to be efficient towards the co-contaminants with 1 mM concentration. Toxicity examination indicated that microbial-treated PAHs resulted in lesser toxicity in aquatic crustaceans (Artemia salina) than untreated PAHs. Also, the study suggests that indigenous microbial consortia PBR-21 has the potential to be used in the bioremediation of PAH-contaminated environment.
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Affiliation(s)
- Arfin Imam
- Analytical Sciences Division, CSIR-Indian Institute of Petroleum, Haridwar Road, Dehradun, Uttarakhand, 248005, India
- Material Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Haridwar Road, Dehradun, Uttarakhand, 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sunil Kumar Suman
- Material Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Haridwar Road, Dehradun, Uttarakhand, 248005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Sonpal Vasavdutta
- CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar, Gujarat, 364002, India
| | - Shruti Chatterjee
- CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar, Gujarat, 364002, India
| | - Bhanu Prasad Vempatapu
- Analytical Sciences Division, CSIR-Indian Institute of Petroleum, Haridwar Road, Dehradun, Uttarakhand, 248005, India
| | - Anjan Ray
- Analytical Sciences Division, CSIR-Indian Institute of Petroleum, Haridwar Road, Dehradun, Uttarakhand, 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pankaj K Kanaujia
- Analytical Sciences Division, CSIR-Indian Institute of Petroleum, Haridwar Road, Dehradun, Uttarakhand, 248005, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Luo M, Zhang X, Long T, Chen S, Zhan M, Zhu X, Yu R. Modeling and optimization study on degradation of organic contaminants using nZVI activated persulfate based on response surface methodology and artificial neural network: a case study of benzene as the model pollutant. Front Chem 2023; 11:1270730. [PMID: 37927557 PMCID: PMC10620510 DOI: 10.3389/fchem.2023.1270730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Due to the complicated transport and reactive behavior of organic contamination in groundwater, the development of mathematical models to aid field remediation planning and implementation attracts increasing attentions. In this study, the approach coupling response surface methodology (RSM), artificial neural networks (ANN), and kinetic models was implemented to model the degradation effects of nano-zero-valent iron (nZVI) activated persulfate (PS) systems on benzene, a common organic pollutant in groundwater. The proposed model was applied to optimize the process parameters in order to help predict the effects of multiple factors on benzene degradation rate. Meanwhile, the chemical oxidation kinetics was developed based on batch experiments under the optimized reaction conditions to predict the temporal degradation of benzene. The results indicated that benzene (0.25 mmol) would be theoretically completely oxidized in 1.45 mM PS with the PS/nZVI molar ratio of 4:1 at pH 3.9°C and 21.9 C. The RSM model predicted well the effects of the four factors on benzene degradation rate (R2 = 0.948), and the ANN with a hidden layer structure of [8-8] performed better compared to the RSM (R2 = 0.980). In addition, the involved benzene degradation systems fit well with the Type-2 and Type-3 pseudo-second order (PSO) kinetic models with R2 > 0.999. It suggested that the proposed statistical and kinetic-based modeling approach is promising support for predicting the chemical oxidation performance of organic contaminants in groundwater under the influence of multiple factors.
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Affiliation(s)
- Moye Luo
- Department of Environmental Science and Engineering, School of Energy and Environment, Southeast University, Nanjing, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, China
| | - Xiaodong Zhang
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, China
| | - Tao Long
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, China
| | - Sheng Chen
- Geo-engineering Investigation Institute of Jiangsu Province, Nanjing, China
| | - Manjun Zhan
- Nanjing Research Institute of Environmental Protection, Nanjing Environmental Protection Bureau, Nanjing, China
| | - Xin Zhu
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, China
| | - Ran Yu
- Department of Environmental Science and Engineering, School of Energy and Environment, Southeast University, Nanjing, China
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Barghoth MG, Desouky SE, Radwan AA, Shah MP, Salem SS. Characterizations of highly efficient moderately halophilic toluene degrading exiguobacterium mexicanum M7 strain isolated from Egyptian saline sediments. Biotechnol Genet Eng Rev 2023:1-19. [PMID: 36861663 DOI: 10.1080/02648725.2023.2184053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/15/2023] [Indexed: 03/03/2023]
Abstract
Toluene and other monoaromatic compounds are released into the environment particularly saline habitats due to the inappropriate disposal methods of petroleum products. Studying the bio-removal strategy is required to clean up these hazardous hydrocarbons that threaten all ecosystem life using halophilic bacteria with higher biodegradation efficiency of monoaromatic compounds as a sole carbon and energy source. Therefore, sixteen pure halophilic bacterial isolates were obtained from saline soil of Wadi An Natrun, Egypt, which have the ability to degrade toluene and consume it as the only source of carbon and energy. Amongst these isolates, isolate M7 exhibited the best growth with considerable properties. This isolate was selected as the most potent strain and identified based on phenotypic and genotypic characterizations. The strain M7 was belonging to Exiguobacterium genus and founded to be closely matched to the Exiguobacterium mexicanum with a similarity of 99%. Using toluene as sole carbon source, strain M7 showed good growth at a wide range temperature degree (20-40ºC), pH (5-9), and salt concentrations (2.5-10%, w/v) with optimal growth conditions at 35ºC, pH 8, and 5%, respectively. The biodegradation ratio of toluene was estimated at above optimal conditions and analyzed using Purge-Trap GC-MS. The results showed that strain M7 has the potentiality to degraded 88.32% of toluene within greatly short time (48 h). The current study findings support the potential ability to use strain M7 as a biotechnological tool in many applications such as effluent treatment and toluene waste management.
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Affiliation(s)
- Mohammed G Barghoth
- Department of Botany and Microbiology, Faculty of Science (Boys), Al-Azhar University, Nasr, Cairo, Egypt
| | - Said E Desouky
- Department of Botany and Microbiology, Faculty of Science (Boys), Al-Azhar University, Nasr, Cairo, Egypt
| | - Ahmed A Radwan
- Department of Botany and Microbiology, Faculty of Science (Boys), Al-Azhar University, Nasr, Cairo, Egypt
| | - Maulin P Shah
- Industrial Waste Water Research Lab, Enviro Technology Ltd, Ankleshwar, Gujarat, India
| | - Salem S Salem
- Department of Botany and Microbiology, Faculty of Science (Boys), Al-Azhar University, Nasr, Cairo, Egypt
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Obiri-Nyarko F, Kwiatkowska-Malina J, Kumahor SK, Malina G. Evaluating low-cost permeable adsorptive barriers for the removal of benzene from groundwater: Laboratory experiments and numerical modelling. JOURNAL OF CONTAMINANT HYDROLOGY 2022; 250:104054. [PMID: 35952492 DOI: 10.1016/j.jconhyd.2022.104054] [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: 01/24/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Permeable adsorptive barriers (PABs) consisting of individual (compost, zeolite, and brown coal) and composite (brown coal-compost and zeolite-compost) adsorbents were evaluated for their hydraulic performance and effectiveness in removing aqueous benzene using batch and column experiments. Different adsorption isotherms and kinetic models and different formulations of the equilibrium advection-dispersion equation (ADE) were evaluated for their capabilities to describe the benzene sorption in the media. The batch experiments showed that the adsorption of benzene by the adsorbents was favourable and could be adequately described by the Freundlich and Langmuir isotherms and the pseudo-second-order kinetic model. Particle attrition and structural reorganization occurred in the columns, possibly introducing preferential flow paths and resulting in slight changes in the final hydraulic conductivity values (4.3 × 10-5 cm s-1-1.7 × 10-3 cm s-1) relative to the initial values (4.2 × 10-5 cm s-1-2.14 × 10-3 cm s-1). Despite the fact that preferential flow appeared to have an impact on the performance of the investigated adsorbents, the brown coal-compost mixture proved to be the most effective adsorbent. It significantly delayed benzene breakthrough (R = 29), indicating that it can be applied as a low-cost effective adsorbent in PABs for sustainable remediation of benzene-contaminated groundwater. The formulated transport models could fairly describe the behaviour of benzene in the investigated media under dynamic flow conditions; however, model refinement and additional experimental studies are needed before pilot/full-scale applications to improve the fits and verify the benzene removal processes. Our results generally demonstrate how such studies can be useful in evaluating potential reactive barrier materials.
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Affiliation(s)
| | - Jolanta Kwiatkowska-Malina
- Department of Spatial Planning and Environmental Sciences, Faculty of Geodesy and Cartography, Warsaw University of Technology, Pl Politechniki 1, 00-661 Warsaw, Poland.
| | | | - Grzegorz Malina
- Department of Hydrogeology and Engineering, Geology AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland.
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Dolphen R, Treesubsuntorn C, Santawee N, Setsungnoen A, Thiravetyan P. Modified coir pith with glucose syrup as a supporter in non-external nutrient supplied biofilter for benzene removal by Bacillus megaterium. ENVIRONMENTAL TECHNOLOGY 2020; 41:3607-3618. [PMID: 31081467 DOI: 10.1080/09593330.2019.1615994] [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: 10/02/2018] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Coir pith glucose syrup beads were used as a supporter in a biofilter system. The modified coir pith beads provided a carbon source and controlled humidity for microorganism growth for long-term operation without external nutrient supplementation. For the screening, Bacillus spp. were immobilised on coir pith beads and used for benzene bioremediation. The result showed that coir pith beads immobilised with Bacillus megaterium can remove on average 85-100% of the benzene (215-day operation). In addition, B. megaterium presented the ability to transform benzene to catechol. For an up-scaled application, a 25-L biofilter system was developed and tested in a closed 24-m3 container re-injected with 0.6 ppm benzene for 8 cycles. The system presented the ability to remove 100% of the benzene. This biofilter has the potential to be applied in a real benzene-contaminated site.
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Affiliation(s)
- Rujira Dolphen
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology, Thonburi, Thailand
| | - Chairat Treesubsuntorn
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology, Thonburi, Thailand
| | - Nuttapong Santawee
- School of Bioresources and Technology, King Mongkut's University of Technology, Thonburi, Thailand
| | - Arnon Setsungnoen
- School of Bioresources and Technology, King Mongkut's University of Technology, Thonburi, Thailand
| | - Paitip Thiravetyan
- School of Bioresources and Technology, King Mongkut's University of Technology, Thonburi, Thailand
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Maity JP, Huang YH, Lin HF, Chen CY. Variation of Microbial Diversity in Catastrophic Oil Spill Area in Marine Ecosystem and Hydrocarbon Degradation of UCMs (Unresolved Complex Mixtures) by Marine Indigenous Bacteria. Appl Biochem Biotechnol 2020; 193:1266-1283. [PMID: 32445124 DOI: 10.1007/s12010-020-03335-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 04/23/2020] [Indexed: 11/29/2022]
Abstract
The study targeted an assessment of microbial diversity during oil spill in the marine ecosystem (Kaohsiung port, Taiwan) and screened dominant indigenous bacteria for oil degradation, as well as UCM weathering. DO was detected lower and TDS/conductivity was observed higher in oil-spilled area, compared to the control, where a significant correlation (R2 = 1; P < 0.0001) was noticed between DO and TDS. The relative abundance (RA) of microbial taxa and diversities (> 90% similarity by NGS) were found higher in the boundary region of spilled-oily-water (site B) compared to the control (site C) and center of the oil spill area (site A) (BRA/diversity > CRA/diversity > ARA/diversity). The isolated indigenous bacteria, such as Staphylococcus saprophyticus (CYCTW1), Staphylococcus saprophyticus (CYCTW2), and Bacillus megaterium (CYCTW3) degraded the C10-C30 including UCM of oil, where Bacillus sp. are exhibited more efficient, which are applicable for environmental cleanup of the oil spill area. Thus, the marine microbial diversity changes due to oil spill and the marine microbial community play an important role to biodegrade the oil, besides restoring the catastrophic disorders through changing their diversity by ecological selection and adaptation process.
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Affiliation(s)
- Jyoti Prakash Maity
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County, 62102, Taiwan.,School of Civil Engineering and Surveying and International Centre for Applied Climate Science, University of Southern Queensland, Toowoomba, Australia
| | - Yi-Hsun Huang
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County, 62102, Taiwan
| | - Hsien-Feng Lin
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County, 62102, Taiwan
| | - Chien-Yen Chen
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County, 62102, Taiwan. .,Center for Innovative Research on Aging Society, AIM-HI, National Chung Cheng University, 168, University Rd., Min-Hsiung, Chiayi, 62102, Taiwan.
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Degradation of chlorotoluenes and chlorobenzenes by the dual-species biofilm of Comamonas testosteroni strain KT5 and Bacillus subtilis strain DKT. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-018-1415-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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8
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Kureel MK, Geed SR, Rai BN, Singh RS. Novel investigation of the performance of continuous packed bed bioreactor (CPBBR) by isolated Bacillus sp. M4 and proteomic study. BIORESOURCE TECHNOLOGY 2018; 266:335-342. [PMID: 29982055 DOI: 10.1016/j.biortech.2018.06.064] [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: 05/04/2018] [Revised: 06/16/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
The present study reveals the benzene degrading potential of bacterial species isolated from petroleum contaminated soil. Genomic analysis suggests that Bacillus sp. M4 was found to be dominating species. The process parameters were optimized and found to be pH 7.0 ± 0.2, temperature 32 ± 5 °C, immobilization time (20 days) and benzene concentration 400 mg/L. The maximum removal efficiency of benzene was calculated and found to be 93.13% at elimination capacity156 (mg/L/day) and inlet loading rate 192 (mg/L/day) achieved in 54th days of operation. In the study, the residual metabolites were analyzed by GC/MS analysis and identified as benzene-1,2-diol. In order to identify the responsible protein involved in the process of benzene biodegradation The proteomic study was performed and proteins were identified by MALDI-TOF analysis. The molecular docking was confirmed by the benzene biodegradation.
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Affiliation(s)
- M K Kureel
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, UP 221005, India
| | - S R Geed
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, UP 221005, India
| | - B N Rai
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, UP 221005, India
| | - R S Singh
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi, UP 221005, India.
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Wu MN, Maity JP, Bundschuh J, Li CF, Lee CR, Hsu CM, Lee WC, Huang CH, Chen CY. Green technological approach to synthesis hydrophobic stable crystalline calcite particles with one-pot synthesis for oil-water separation during oil spill cleanup. WATER RESEARCH 2017; 123:332-344. [PMID: 28683374 DOI: 10.1016/j.watres.2017.06.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/14/2017] [Accepted: 06/06/2017] [Indexed: 06/07/2023]
Abstract
The process of separating oil and water from oil/water mixtures is an attractive strategy to answer the menace caused by industrial oil spills and oily wastewater. In addition, water coproduced during hydrocarbon exploitation, which can be an economic burden and risk for freshwater resources, can become an important freshwater source after suitable water-oil separation. For oil-water separation purposes, considerable attention has been paid to the preparation of hydrophobic-oleophilic materials with modified surface roughness. However, due to issues of thermodynamic instability, costly and complex methods as well as lack of ecofriendly compounds, most of hydrophobic surface modified particles are of limited practical application. The study presents a facile procedure, to synthesize crystalline particles of calcite, which is the most stable polymorph of CaCO3 from industrial CaCO3 using oleic acid as an additive in a one-pot synthesis method. The XRD results show that the synthesized particles were a well-crystallized form of calcite. The FTIR results reflect the appearance of the alkyl groups from the oleic acid in synthesized particles which promotes the production of calcite with 'rice shape' (1.64 μm) (aggregated by spherical nanoparticle of 19.56 nm) morphology with concomitant changes in its surface wettability from hydrophilic to hydrophobic. The synthesized particles exhibited near to super hydrophobicity with ∼99% active ratio and a contact angle of 143.8°. The synthesized hydrophobic calcite particles had an oleophilic nature where waste diesel oil adsorption capacity of synthesized calcium carbonate (HCF) showed a very high (>99%) and fast (7 s) oil removal from oil-water mixture. The functional group of long alkyl chain including of CO bounds may play critical roles for adsorption of diesel oils. Moreover, the thermodynamically stable crystalline polymorph calcite (compared to vaterite) exhibited excellent recyclability. The isothermal study reflects the comparatively high value of correlation coefficient (R2 = 0.94) for the Langmuir isotherm compared to those of the Freundlich isotherm (R2 = 0.82) showed that the adsorption of diesel oil onto the hydrophobic CaCO3 adsorbent was much better described by the Langmuir isotherm. The kinetics study of second-order rate expression (R2 = 0.99) more fitted with the experimental data compare to first-order model (R2 = 0.92). The synthesized calcite exhibited a significant dual oleophilic and hydrophobic nature that can be applicable for oil adsorption/or removal purpose in oil contaminated areas in environment and/or industrial oily wastewater for green, simple, and inexpensive environmental cleanup.
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Affiliation(s)
- Min-Nan Wu
- Department of Physics, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Jyoti Prakash Maity
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan; School of Civil Engineering and Surveying, University of Southern Queensland, West Street, Toowoomba 4350, Australia.
| | - Jochen Bundschuh
- School of Civil Engineering and Surveying, University of Southern Queensland, West Street, Toowoomba 4350, Australia; Deputy Vice-Chancellor's Office (Research and Innovation), University of Southern Queensland, West Street, Toowoomba 4350, QLD, Australia
| | - Che-Feng Li
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Chin-Rong Lee
- Department of Physics, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Chun-Mei Hsu
- Department of Chemical Engineering, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Wen-Chien Lee
- Department of Chemical Engineering, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Chung-Ho Huang
- Department of Civil Engineering at the National Taipei University of Technology, No. 1, Sec. 3, Zhongxiao E. Rd., Da'an Dist., Taipei City 106, Taiwan
| | - Chien-Yen Chen
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan.
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Kureel MK, Geed SR, Giri BS, Rai BN, Singh RS. Biodegradation and kinetic study of benzene in bioreactor packed with PUF and alginate beads and immobilized with Bacillus sp. M3. BIORESOURCE TECHNOLOGY 2017; 242:92-100. [PMID: 28390787 DOI: 10.1016/j.biortech.2017.03.167] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/25/2017] [Accepted: 03/27/2017] [Indexed: 05/23/2023]
Abstract
Benzene removal in free and immobilized cells on polyurethane foam (PUF) and polyvinyl alcohol (PVA)-alginate beads was studied using an indigenous soil bacterium Bacillus sp. M3 isolated from petroleum-contaminated soil. The important process parameters (pH, temperature and inoculums size) were optimized and found to be 7, 37°C and 6.0×108CFU/mL, respectively. Benzene removals were observed to be 70, 84 and 90% within 9days in a free cell, immobilized PVA-alginate beads and PUF, respectively under optimum operating conditions. FT-IR and GC-MS analysis confirm the presence of phenol, 1,2-benzenediol, hydroquinone and benzoate as metabolites. The important kinetic parameter ratios (µmax/Ks; L/mg·day) calculated using Monod model was found to be 0.00123 for free cell, 0.00159 for immobilized alginate beads and 0.002016 for immobilized PUF. Similarly inhibition constants (Ki; mg/L) calculated using Andrew-Haldane model was found to be 435.84 for free cell, 664.25 for immobilized alginate beads and 724.93 for immobilized PUF.
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Affiliation(s)
- M K Kureel
- Department of Chemical Engineering & Technology, IIT (BHU), Varanasi, UP 221005, India
| | - S R Geed
- Department of Chemical Engineering & Technology, IIT (BHU), Varanasi, UP 221005, India
| | - B S Giri
- Department of Chemical Engineering & Technology, IIT (BHU), Varanasi, UP 221005, India
| | - B N Rai
- Department of Chemical Engineering & Technology, IIT (BHU), Varanasi, UP 221005, India
| | - R S Singh
- Department of Chemical Engineering & Technology, IIT (BHU), Varanasi, UP 221005, India.
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Kureel M, Geed S, Giri B, Shukla A, Rai B, Singh R. Removal of aqueous benzene in the immobilized batch and continuous packed bed bioreactor by isolated Bacillus sp. M1. RESOURCE-EFFICIENT TECHNOLOGIES 2016. [DOI: 10.1016/j.reffit.2016.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Hentati D, Chebbi A, Loukil S, Kchaou S, Godon JJ, Sayadi S, Chamkha M. Biodegradation of fluoranthene by a newly isolated strain of Bacillus stratosphericus from Mediterranean seawater of the Sfax fishing harbour, Tunisia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:15088-15100. [PMID: 27083911 DOI: 10.1007/s11356-016-6648-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 04/05/2016] [Indexed: 06/05/2023]
Abstract
A physico-chemical characterization of seawater taken from the fishing harbour of Sfax, Tunisia, revealed a contamination by organic and inorganic micropollutants. An aerobic marine halotolerant Bacillus stratosphericus strain FLU5 was isolated after enrichment on fluoranthene, a persistent and toxic polycyclic aromatic hydrocarbon (PAH). GC-MS analyses showed that strain FLU5 was capable of degrading almost 45 % of fluoranthene (100 mg l(-1)), without yeast extract added, after 30 days of incubation at 30 g l(-1) NaCl and 37 °C. In addition, the isolate FLU5 showed a remarkable capacity to grow on a wide range of aliphatic, aromatic and complex hydrocarbons. This strain could also synthesize a biosurfactant which was capable of reducing the surface tension of the cell-free medium, during the growth on fluoranthene. The biodegradative abilities of PAHs are promising and can be used to perform the bioremediation strategies of seawaters and marine sediments contaminated by hydrocarbons.
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Affiliation(s)
- Dorra Hentati
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, LMI COSYS-Med, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Alif Chebbi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, LMI COSYS-Med, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Slim Loukil
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, LMI COSYS-Med, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Sonia Kchaou
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, LMI COSYS-Med, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Jean-Jacques Godon
- Laboratory INRA of Environmental Biotechnology, Avenue des Etangs, F-11100, Narbonne, France
| | - Sami Sayadi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, LMI COSYS-Med, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Mohamed Chamkha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, LMI COSYS-Med, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia.
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Pal S, Banat F, Almansoori A, Abu Haija M. Review of technologies for biotreatment of refinery wastewaters: progress, challenges and future opportunities. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/21622515.2016.1164252] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sreela Pal
- Department of Chemical Engineering, The Petroleum Institute, Abu Dhabi, UAE
| | - Fawzi Banat
- Department of Chemical Engineering, The Petroleum Institute, Abu Dhabi, UAE
| | - Ali Almansoori
- Department of Chemical Engineering, The Petroleum Institute, Abu Dhabi, UAE
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Aleer S, Adetutu EM, Weber J, Ball AS, Juhasz AL. Potential impact of soil microbial heterogeneity on the persistence of hydrocarbons in contaminated subsurface soils. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2014; 136:27-36. [PMID: 24553295 DOI: 10.1016/j.jenvman.2014.01.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 12/06/2013] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
In situ bioremediation is potentially a cost effective treatment strategy for subsurface soils contaminated with petroleum hydrocarbons, however, limited information is available regarding the impact of soil spatial heterogeneity on bioremediation efficacy. In this study, we assessed issues associated with hydrocarbon biodegradation and soil spatial heterogeneity (samples designated as FTF 1, 5 and 8) from a site in which in situ bioremediation was proposed for hydrocarbon removal. Test pit activities showed similarities in FTF soil profiles with elevated hydrocarbon concentrations detected in all soils at 2 m below ground surface. However, PCR-DGGE-based cluster analysis showed that the bacterial community in FTF 5 (at 2 m) was substantially different (53% dissimilar) and 2-3 fold more diverse than communities in FTF 1 and 8 (with 80% similarity). When hydrocarbon degrading potential was assessed, differences were observed in the extent of (14)C-benzene mineralisation under aerobic conditions with FTF 5 exhibiting the highest hydrocarbon removal potential compared to FTF 1 and 8. Further analysis indicated that the FTF 5 microbial community was substantially different from other FTF samples and dominated by putative hydrocarbon degraders belonging to Pseudomonads, Xanthomonads and Enterobacteria. However, hydrocarbon removal in FTF 5 under anaerobic conditions with nitrate and sulphate electron acceptors was limited suggesting that aerobic conditions were crucial for hydrocarbon removal. This study highlights the importance of assessing available microbial capacity prior to bioremediation and shows that the site's spatial heterogeneity can adversely affect the success of in situ bioremediation unless area-specific optimizations are performed.
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Affiliation(s)
- Sam Aleer
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), Mawson Lakes, Adelaide, South Australia 5095, Australia
| | - Eric M Adetutu
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), Mawson Lakes, Adelaide, South Australia 5095, Australia; School of Biological Sciences, Flinders University, Adelaide, South Australia 5001, Australia
| | - John Weber
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), Mawson Lakes, Adelaide, South Australia 5095, Australia
| | - Andrew S Ball
- School of Biological Sciences, Flinders University, Adelaide, South Australia 5001, Australia
| | - Albert L Juhasz
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), Mawson Lakes, Adelaide, South Australia 5095, Australia.
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15
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Degradation of benzene, toluene, and xylene (BTX) from aqueous solution by isolated bacteria from contaminated sites. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1189-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Li H, Zhang Q, Wang XL, Ma XY, Lin KF, Liu YD, Gu JD, Lu SG, Shi L, Lu Q, Shen TT. Biodegradation of benzene homologues in contaminated sediment of the East China Sea. BIORESOURCE TECHNOLOGY 2012; 124:129-136. [PMID: 22989641 DOI: 10.1016/j.biortech.2012.08.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2012] [Revised: 08/08/2012] [Accepted: 08/10/2012] [Indexed: 06/01/2023]
Abstract
This study focused on acclimating a microbial enrichment to biodegrade benzene, toluene, ethylbenzene and xylenes (BTEX) in a wide range of salinity. The enrichment degraded 120 mg/L toluene within 5d in the presence of 2M NaCl or 150 mg/L toluene within 7d in the presence of 1-1.5M NaCl. PCR-DGGE (polymerase chain reaction-denatured gradient gel electrophoresis) profiles demonstrated the dominant species in the enrichments distributed between five main phyla: Gammaproteobacteria, Sphingobacteriia, Prolixibacter, Flavobacteriia and Firmicutes. The Marinobacter, Prolixibacter, Balneola, Zunongwangia, Halobacillus were the dominant genus. PCR detection of genotypes involved in bacterial BETX degradation revealed that the degradation pathways contained all the known initial oxidative attack of BTEX by monooxygenase and dioxygenase. And the subsequent ring fission was catalysed by catechol 1,2-dioxygenase and catechol 2,3-dioxygenase. Nuclear magnetic resonance (NMR) spectroscopy profiles showed that the bacterial consortium adjusted the osmotic pressure by ectoine and hydroxyectoine as compatible solutes to acclimate the different salinity conditions.
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Affiliation(s)
- Hui Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Functional Materials Chemistry, School of Bioengineering, East China University of Science and Technology, Shanghai 200237, PR China
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17
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Mukherjee AK, Bordoloi NK. Biodegradation of benzene, toluene, and xylene (BTX) in liquid culture and in soil by Bacillus subtilis and Pseudomonas aeruginosa strains and a formulated bacterial consortium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2012; 19:3380-3388. [PMID: 22528987 DOI: 10.1007/s11356-012-0862-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Accepted: 03/12/2012] [Indexed: 05/31/2023]
Abstract
PURPOSE The major aromatic constituents of petroleum products viz. benzene, toluene, and mixture of xylenes (BTX) are responsible for environmental pollution and inflict serious public concern. Therefore, BTX biodegradation potential of individual as well as formulated bacterial consortium was evaluated. This study highlighted the role of hydrogen peroxide (H(2)O(2)), nitrate, and phosphate in stimulating the biodegradation of BTX compounds under hypoxic condition. MATERIALS AND METHODS The individual bacterium viz. Bacillus subtilis DM-04 and Pseudomonas aeruginosa M and NM strains and a consortium comprising of the above bacteria were inoculated to BTX-containing liquid medium and in soil. The bioremediation experiment was carried out for 120 h in BTX-containing liquid culture and for 90 days in BTX-contaminated soil. The kinetics of BTX degradation either in presence or absence of H(2)O(2), nitrate, and phosphate was analyzed using biochemical and gas chromatographic (GC) technique. RESULTS Bacterial consortium was found to be superior in degrading BTX either in soil or in liquid medium as compared to degradation of same compounds by individual strains of the consortium. The rate of BTX biodegradation was further enhanced when the liquid medium/soil was exogenously supplemented with 0.01 % (v/v) H(2)O(2), phosphate, and nitrate(.) The GC analysis of BTX biodegradation (90 days post-inoculation) in soil by bacterial consortium confirmed the preferential degradation of benzene compared to m-xylene and toluene. CONCLUSIONS It may be concluded that the bacterial consortium in the present study can degrade BTX compounds at a significantly higher rate as compared to the degradation of the same compounds by individual members of the consortium. Further, addition of H(2)O(2) in the culture medium as an additional source of oxygen, and nitrate and phosphate as an alternative electron acceptor and macronutrient, respectively, significantly enhanced the rate of BTX biodegradation under oxygen-limited condition.
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Affiliation(s)
- Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784 028 Assam, India.
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Pereiro AB, Deive FJ, Rodríguez A. On the Use of Ionic Liquids to Separate Aromatic Hydrocarbons from a Model Soil. SEP SCI TECHNOL 2012. [DOI: 10.1080/01496395.2011.606258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Maity JP, Kar S, Liu JH, Jean JS, Chen CY, Bundschuh J, Santra SC, Liu CC. The potential for reductive mobilization of arsenic [As(V) to As(III)] by OSBH(2) (Pseudomonas stutzeri) and OSBH(5) (Bacillus cereus) in an oil-contaminated site. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2011; 46:1239-1246. [PMID: 21879856 DOI: 10.1080/10934529.2011.598802] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Microbial reduction of arsenate [As(V)] plays an important role in arsenic (As) mobilization in aqueous environments. In this study, we investigated reduction of arsenate by different bacterial isolates such as OSBH(1) (GU329913), OSBH(2) (GU329914), OSBH(3) (GU329915), OSBH(4) (GU329916) and OSBH(5) (GU329917), isolated from the oil sludge of a sewage treatment plant operated by the China Petroleum Refinery Company in Kaohsiung, southern Taiwan. Bacterial strains of pure culture were identified by 16S rRNA analysis (≥99 % nucleotide similarity). Morphological and 16S rRNA analysis show that the isolate OSBH(1) is similar to E. coli, OSBH(2) is similar to P. stutzeri, OSBH(3) is similar to P. putida, OSBH(4) is similar to P. aeruginosa, and OSBH(5) is similar to B. Cereus. The As(V) was transformed to As(III) in the presence of isolates OSBH(2) and OSBH(5) by a detoxification process. The potential reduction rates of As(V) were higher in the presence of isolate OSBH(5) compared to the isolate OSBH(2). The microbial growth (cell/mL) of isolate OSBH(5) was significantly higher in culture medium compared to OSBH(2). The bacterial isolates such as OSBH(1), OSBH(3) and OSBH(4) were found to be incapable of transforming the As(V). It is concluded that the activity of the oil-degrading bacterial isolates described in this work contributes to the mobilization of As in the more toxic As(III) form that affects biotic life.
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Affiliation(s)
- Jyoti Prakash Maity
- Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan.
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