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Arthi R, Parameswari E, Dhevagi P, Janaki P, Parimaladevi R. Microbial alchemists: unveiling the hidden potentials of halophilic organisms for soil restoration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33949-9. [PMID: 38877191 DOI: 10.1007/s11356-024-33949-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 06/05/2024] [Indexed: 06/16/2024]
Abstract
Salinity, resulting from various contaminants, is a major concern to global crop cultivation. Soil salinity results in increased osmotic stress, oxidative stress, specific ion toxicity, nutrient deficiency in plants, groundwater contamination, and negative impacts on biogeochemical cycles. Leaching, the prevailing remediation method, is expensive, energy-intensive, demands more fresh water, and also causes nutrient loss which leads to infertile cropland and eutrophication of water bodies. Moreover, in soils co-contaminated with persistent organic pollutants, heavy metals, and textile dyes, leaching techniques may not be effective. It promotes the adoption of microbial remediation as an effective and eco-friendly method. Common microbes such as Pseudomonas, Trichoderma, and Bacillus often struggle to survive in high-saline conditions due to osmotic stress, ion imbalance, and protein denaturation. Halophiles, capable of withstanding high-saline conditions, exhibit a remarkable ability to utilize a broad spectrum of organic pollutants as carbon sources and restore the polluted environment. Furthermore, halophiles can enhance plant growth under stress conditions and produce vital bio-enzymes. Halophilic microorganisms can contribute to increasing soil microbial diversity, pollutant degradation, stabilizing soil structure, participating in nutrient dynamics, bio-geochemical cycles, enhancing soil fertility, and crop growth. This review provides an in-depth analysis of pollutant degradation, salt-tolerating mechanisms, and plant-soil-microbe interaction and offers a holistic perspective on their potential for soil restoration.
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Affiliation(s)
- Ravichandran Arthi
- Department of Environmental Science, Tamil Nadu Agricultural University, Coimbatore, India
| | | | - Periyasamy Dhevagi
- Department of Environmental Science, Tamil Nadu Agricultural University, Coimbatore, India
| | - Ponnusamy Janaki
- Nammazhvar Organic Farming Research Centre, Tamil Nadu Agricultural University, Coimbatore, India
| | - Rathinasamy Parimaladevi
- Department of Bioenergy, Agrl. Engineering College & Research Institute, Tamil Nadu Agricultural University, Coimbatore, India
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2
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Chifflet S, Chu van T, Bui Van V, Pham The T, Mari X, Pradel N. Analysis of the metals and metalloids concentrations and of the bacterial population in sediments of the Red River Delta, Vietnam. Front Microbiol 2024; 15:1394998. [PMID: 38933021 PMCID: PMC11201535 DOI: 10.3389/fmicb.2024.1394998] [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: 03/02/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
In this study, we discuss for the first time the relationships between the diversity of the bacterial population and of the metals and metalloids concentrations in the sediments of the Red River Delta, Vietnam. The analysis of the 16S rRNA by the Illumina technology revealed a diversified population and a potential of bioremediation by the microorganisms, notably by the Bacilli relatively abundant in the Bach Dang estuary, where high metals and metalloids concentrations were highlighted. This work offers new information on the environmental context of the delta and highlights the potential impact that metals and metalloids may have on the bacterial population. Further investigations on the role of the bacteria in the biogeochemistry of this ecosystem will be of interest for the development of bioremediation processes.
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Affiliation(s)
- Sandrine Chifflet
- Aix Marseille Université, IRD, Université de Toulon, CNRS, MIO, UM 110, Marseille, France
| | - Thuoc Chu van
- Institute of Marine Environment and Resources (IMER), Vietnam Academy of Science and Technology (VAST), Haiphong, Vietnam
| | - Vuong Bui Van
- Institute of Marine Environment and Resources (IMER), Vietnam Academy of Science and Technology (VAST), Haiphong, Vietnam
| | - Thu Pham The
- Institute of Marine Environment and Resources (IMER), Vietnam Academy of Science and Technology (VAST), Haiphong, Vietnam
| | - Xavier Mari
- Aix Marseille Université, IRD, Université de Toulon, CNRS, MIO, UM 110, Marseille, France
- Institute of Marine Environment and Resources (IMER), Vietnam Academy of Science and Technology (VAST), Haiphong, Vietnam
| | - Nathalie Pradel
- Aix Marseille Université, IRD, Université de Toulon, CNRS, MIO, UM 110, Marseille, France
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Sajid S, de Dios VR, Zveushe OK, Nabi F, Shen S, Kang Q, Zhou L, Ma L, Zhang W, Zhao Y, Han Y, Dong F. Newly isolated halotolerant Aspergillus sp. showed high diesel degradation efficiency under high salinity environment aided with hematite. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130324. [PMID: 36444053 DOI: 10.1016/j.jhazmat.2022.130324] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
The contamination of saline soil with hazardous petroleum hydrocarbons is a common problem across coastal areas globally. Bioaugmentation combined with chemical treatment is an emerging remediation technique, but it currently shows low efficiency under high saline environments. In this study, we screened and used a novel halotolerant lipolytic fungal consortium (HLFC) combined with hematite (Fe2O3) for the bioremediation of diesel contaminated saline soils. The changes in total petroleum hydrocarbons (TPH) concentrations, enzyme activity, and microbial diversity were compared among different treatments (HLFC, hematite, hematite-HLFC, and control). The results showed that TPH degradation was significantly (P < 0.05) enhanced in hematite-HLFC (47.59-88.01%) and HLFC (24.26-72.04%) amended microcosms across all salinity levels, compared to the treatments of hematite (23.71-66.26%) and control (6.39-55.20%). TPH degradation was positively correlated with lipase and laccase enzyme activities, electrical conductivity, and the water holding capacity of the soil. Analyses of the microbial community structure showed that microbial richness decreased, while evenness increased in HLFC and hematite-HLFC treatments. The relative abundances of Alicyclobacillus, Sediminibacillus, Alcanivorax, Penicillium, Aspergillus, and Candida genera were significantly high in hematite-HLFC and HLFC amended microcosms. Our findings provide a promising new microbial-based technique, which can degrade TPH efficiently in saline soil.
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Affiliation(s)
- Sumbal Sajid
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Víctor Resco de Dios
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China; Joint Research Unit CTFC-AGROTECNIO, Universitat de Lleida, 25198 Lérida, Spain
| | - Obey Kudakwashe Zveushe
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Farhan Nabi
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Songrong Shen
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Qianlin Kang
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Lei Zhou
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang 621010, China
| | - Lin Ma
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Wei Zhang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China; Center of Analysis and Testing, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
| | - Yulian Zhao
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Ying Han
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Faqin Dong
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China; Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China.
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Hu Y, Mu S, Zhang J, Li Q. Regional distribution, properties, treatment technologies, and resource utilization of oil-based drilling cuttings: A review. CHEMOSPHERE 2022; 308:136145. [PMID: 36029858 DOI: 10.1016/j.chemosphere.2022.136145] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/07/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Oil-based drilling cuttings (OBDC) are hazardous wastes produced during the extensive use of oil-based drilling mud in oil and gas exploration and development. They have strong mutagenic, carcinogenic, and teratogenic effects and need to be properly disposed of to avoid damaging the natural environment. This paper reviews the recent research progress on the regional distribution, properties, treatment technologies, and resource utilization of OBDC. The advantages and disadvantages of different technologies for removing petroleum pollutants from OBDC were comprehensively analyzed, and required future developments in treatment technologies were proposed.
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Affiliation(s)
- Yuansi Hu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Shiqi Mu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Jingjing Zhang
- Sichuan Solid Waste and Chemicals Management Center, Chengdu, 610036, China
| | - Qibin Li
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China.
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5
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Biodegradation of high molecular weight hydrocarbons under saline condition by halotolerant Bacillus subtilis and its mixed cultures with Pseudomonas species. Sci Rep 2022; 12:13227. [PMID: 35918482 PMCID: PMC9345985 DOI: 10.1038/s41598-022-17001-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/19/2022] [Indexed: 11/08/2022] Open
Abstract
Biodegradation of high-molecular-weight petroleum hydrocarbons in saline conditions appears to be complicated and requires further investigation. This study used heavy crude oil to enrich petroleum-degrading bacteria from oil-contaminated saline soils. Strain HG 01, with 100% sequence similarity to Bacillus subtilis, grew at a wide range of salinities and degraded 55.5 and 77.2% of 500 mg/l pyrene and 500 mg/l tetracosane, respectively, at 5% w/v NaCl. Additionally, a mixed-culture of HG 01 with Pseudomonas putida and Pseudomonas aeruginosa, named TMC, increased the yield of pyrene, and tetracosane degradation by about 20%. Replacing minimal medium with treated seawater (C/N/P adjusted to 100/10/1) enabled TMC to degrade more than 99% of pyrene and tetracosane, but TMC had lesser degradation in untreated seawater than in minimal medium. Also, the degradation kinetics of pyrene and tetracosane were fitted to a first-order model. Compared to B. subtilis, TMC increased pyrene and tetracosane's removal rate constant (K1) from 0.063 and 0.110 per day to 0.123 and 0.246 per day. TMC also increased the maximum specific growth rate of B. subtilis, P. putida, and P. aeruginosa, respectively, 45% higher in pyrene, 24.5% in tetracosane, and 123.4% and 95.4% higher in pyrene and tetracosane.
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6
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Mainka T, Herwig C, Pflügl S. Reducing Organic Load From Industrial Residual Process Brine With a Novel Halophilic Mixed Culture: Scale-Up and Long-Term Piloting of an Integrated Bioprocess. Front Bioeng Biotechnol 2022; 10:896576. [PMID: 35519624 PMCID: PMC9062027 DOI: 10.3389/fbioe.2022.896576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Integrating bioprocess solutions for treatment and subsequent reuse of saline residual process brine into industrial processes could increase the sustainability of production chains. However, such bioprocesses require large-scales and a robust operation over a prolonged period. Consequently, the aim of this study was to analyze scale-up equivalence as well as continuous and stable process performance of a previously established lab scale process for the degradation of organic contaminants (formate and aromatic compounds) in an industrial context. To that end, a pilot-scale bubble column bioreactor system equipped with a membrane-based cell retention system for process intensification was integrated at an industrial production site. The process was successfully scaled-up and continuously operated for more than 210 days. Overall, the process proved to be robust towards changing compositions of the residual process brine stream and degradation rates for organic contaminants were close to 100%. Interestingly, due to the unsterile process conditions, the original Haloferax mediterranei culture was replaced by a novel halophilic bacterial community consisting of three bacterial genera. To further improve process economics and productivity, an optimization of the co-substrate feeding strategy for glycerol is required, as results indicated a potential correlation between glycerol feeding and formate degradation rates. To that end, decoupling of the glycerol feeding from the residual process brine feed is a potential way to increase process control options and allow for easy adaptation of the process to changing residual process brine compositions. Ultimately, the process described here could be a promising alternative for chemical or physical methods of treating residual process brine and once more underlines the potential to exploit natural microbial diversity for industrial purposes.
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Affiliation(s)
- Thomas Mainka
- Institute for Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria
| | - Christoph Herwig
- Institute for Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria,Competence Center CHASE GmbH, Linz, Austria
| | - Stefan Pflügl
- Institute for Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria,*Correspondence: Stefan Pflügl,
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From Surface Water to the Deep Sea: A Review on Factors Affecting the Biodegradation of Spilled Oil in Marine Environment. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10030426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Over the past century, the demand for petroleum products has increased rapidly, leading to higher oil extraction, processing and transportation, which result in numerous oil spills in coastal-marine environments. As the spilled oil can negatively affect the coastal-marine ecosystems, its transport and fates captured a significant interest of the scientific community and regulatory agencies. Typically, the environment has natural mechanisms (e.g., photooxidation, biodegradation, evaporation) to weather/degrade and remove the spilled oil from the environment. Among various oil weathering mechanisms, biodegradation by naturally occurring bacterial populations removes a majority of spilled oil, thus the focus on bioremediation has increased significantly. Helping in the marginal recognition of this promising technique for oil-spill degradation, this paper reviews recently published articles that will help broaden the understanding of the factors affecting biodegradation of spilled oil in coastal-marine environments. The goal of this review is to examine the effects of various environmental variables that contribute to oil degradation in the coastal-marine environments, as well as the factors that influence these processes. Physico-chemical parameters such as temperature, oxygen level, pressure, shoreline energy, salinity, and pH are taken into account. In general, increase in temperature, exposure to sunlight (photooxidation), dissolved oxygen (DO), nutrients (nitrogen, phosphorous and potassium), shoreline energy (physical advection—waves) and diverse hydrocarbon-degrading microorganisms consortium were found to increase spilled oil degradation in marine environments. In contrast, higher initial oil concentration and seawater pressure can lower oil degradation rates. There is limited information on the influences of seawater pH and salinity on oil degradation, thus warranting additional research. This comprehensive review can be used as a guide for bioremediation modeling and mitigating future oil spill pollution in the marine environment by utilizing the bacteria adapted to certain conditions.
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Dell’ Anno F, Rastelli E, Sansone C, Brunet C, Ianora A, Dell’ Anno A. Bacteria, Fungi and Microalgae for the Bioremediation of Marine Sediments Contaminated by Petroleum Hydrocarbons in the Omics Era. Microorganisms 2021; 9:1695. [PMID: 34442774 PMCID: PMC8400010 DOI: 10.3390/microorganisms9081695] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 11/29/2022] Open
Abstract
Petroleum hydrocarbons (PHCs) are one of the most widespread and heterogeneous organic contaminants affecting marine ecosystems. The contamination of marine sediments or coastal areas by PHCs represents a major threat for the ecosystem and human health, calling for urgent, effective, and sustainable remediation solutions. Aside from some physical and chemical treatments that have been established over the years for marine sediment reclamation, bioremediation approaches based on the use of microorganisms are gaining increasing attention for their eco-compatibility, and lower costs. In this work, we review current knowledge concerning the bioremediation of PHCs in marine systems, presenting a synthesis of the most effective microbial taxa (i.e., bacteria, fungi, and microalgae) identified so far for hydrocarbon removal. We also discuss the challenges offered by innovative molecular approaches for the design of effective reclamation strategies based on these three microbial components of marine sediments contaminated by hydrocarbons.
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Affiliation(s)
- Filippo Dell’ Anno
- Department of Marine Biotechnology, Stazione Zoologica “Anton Dohrn”, Villa Comunale, 80121 Naples, Italy; (C.S.); (C.B.); (A.I.)
| | - Eugenio Rastelli
- Department of Marine Biotechnology, Stazione Zoologica “Anton Dohrn”, Fano Marine Centre, Viale Adriatico 1-N, 61032 Fano, Italy;
| | - Clementina Sansone
- Department of Marine Biotechnology, Stazione Zoologica “Anton Dohrn”, Villa Comunale, 80121 Naples, Italy; (C.S.); (C.B.); (A.I.)
| | - Christophe Brunet
- Department of Marine Biotechnology, Stazione Zoologica “Anton Dohrn”, Villa Comunale, 80121 Naples, Italy; (C.S.); (C.B.); (A.I.)
| | - Adrianna Ianora
- Department of Marine Biotechnology, Stazione Zoologica “Anton Dohrn”, Villa Comunale, 80121 Naples, Italy; (C.S.); (C.B.); (A.I.)
| | - Antonio Dell’ Anno
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
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Procópio L. The oil spill and the use of chemical surfactant reduce microbial corrosion on API 5L steel buried in saline soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26975-26989. [PMID: 33496949 DOI: 10.1007/s11356-021-12544-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
In order to evaluate the biocorrosion of API 5L metal buried in saline soils, three different conditions in microcosms were evaluated. The control microcosm contained only saline soil, the second had the addition of petroleum, and the third contained the addition of both petroleum and surfactant. The corrosion rate of the metals was measured by loss of mass after 30 days, and the microbial communities were delineated using 16S rRNA gene sequencing techniques. The species were dominated by halophiles in all samples analyzed. Among the bacteria, the predominant group was Proteobacteria, with emphasis on the Alphaproteobacteria and Gammaproteobacteria. Betaproteobacteria and Deltaproteobacteria members were also identified in a smaller number in all conditions. Firmicutes were especially abundant in the control system, although it was persistently present in other conditions evaluated. Bacteroidetes and Actinobacteria were also present in a considerable number of OTUs in the three microcosms. Halobacteria were predominant among archaea and were present in all conditions. The analysis pointed to a conclusion that in the control microcosm, the corrosion rate was higher, while the microcosm containing only oil had the lowest corrosion rate. These results suggest that, under these conditions, the entry of other carbon sources favors the presence of petroleum degraders, rather than samples involved in the corrosion of metals.
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Affiliation(s)
- Luciano Procópio
- Industrial Microbiology and Bioremediation Department, Universidade Federal do Rio de Janeiro (UFRJ), Caxias, Rio de Janeiro, Brazil.
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Tirkey SR, Ram S, Mishra S. Naphthalene degradation studies using Pseudomonas sp. strain SA3 from Alang-Sosiya ship breaking yard, Gujarat. Heliyon 2021; 7:e06334. [PMID: 33869819 PMCID: PMC8035486 DOI: 10.1016/j.heliyon.2021.e06334] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/29/2021] [Accepted: 02/17/2021] [Indexed: 11/16/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) remediation has received considerable attention due to their significant health concern and environmental pollution. However, PAHs contaminated sites also contain indigenous microbes that can potentially degrade naphthalene. Therefore, this study aimed to isolate, characterise and optimise process parameters for efficient naphthalene degradation. A total of 50 naphthalene degrading bacteria were isolated from Alang-Sosiya ship breaking yard, Bhavnagar, Gujarat and screened for their naphthalene degrading capacity. The selected isolate, Pseudomonas sp. strain SA3 was found to degrade 98.74 ± 0.00% naphthalene at a concentration of 500 ppm after 96 h. Further, optimisation of environmental parameters using one factor at a time approach using different inoculum sizes (v/v), pH, salinity, temperature, carbon and nitrogen source greatly accelerated the degradation process attaining 98.6 ± 0.46% naphthalene degradation after 72 h. The optimised parameters for maximum naphthalene degradation were pH 8, 0.1% peptone as nitrogen source, 8% salinity and 1% (v/v) inoculum size.
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Affiliation(s)
- Sushma Rani Tirkey
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Applied Phycology & Biotechnology Division, CSIR- Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
| | - Shristi Ram
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Applied Phycology & Biotechnology Division, CSIR- Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
| | - Sandhya Mishra
- Applied Phycology & Biotechnology Division, CSIR- Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
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Bioremediation of Diesel Contaminated Marine Water by Bacteria: A Review and Bibliometric Analysis. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2021. [DOI: 10.3390/jmse9020155] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oil pollution can cause tremendous harm and risk to the water ecosystem and organisms due to the relatively recalcitrant hydrocarbon compounds. The current chemical method used to treat the ecosystem polluted with diesel is incompetent and expensive for a large-scale treatment. Thus, bioremediation technique seems urgent and requires more attention to solve the existing environmental problems. Biological agents, including microorganisms, carry out the biodegradation process where organic pollutants are mineralized into water, carbon dioxide, and less toxic compounds. Hydrocarbon-degrading bacteria are ubiquitous in the nature and often exploited for their specialty to bioremediate the oil-polluted area. The capability of these bacteria to utilize hydrocarbon compounds as a carbon source is the main reason behind their species exploitation. Recently, microbial remediation by halophilic bacteria has received many positive feedbacks as an efficient pollutant degrader. These halophilic bacteria are also considered as suitable candidates for bioremediation in hypersaline environments. However, only a few microbial species have been isolated with limited available information on the biodegradation of organic pollutants by halophilic bacteria. The fundamental aspect for successful bioremediation includes selecting appropriate microbes with a high capability of pollutant degradation. Therefore, high salinity bacteria are remarkable microbes for diesel degradation. This paper provides an updated overview of diesel hydrocarbon degradation, the effects of oil spills on the environment and living organisms, and the potential role of high salinity bacteria to decontaminate the organic pollutants in the water environment.
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12
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Waghmode S, Suryavanshi M, Sharma D, Satpute SK. Planococcus Species - An Imminent Resource to Explore Biosurfactant and Bioactive Metabolites for Industrial Applications. Front Bioeng Biotechnol 2020; 8:996. [PMID: 32974318 PMCID: PMC7461981 DOI: 10.3389/fbioe.2020.00996] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/30/2020] [Indexed: 11/13/2022] Open
Abstract
The marine environment represents a well-off and diverse group of microbes, which offers an enormous natural bioactive compounds of commercial importance. These natural products have expanded rigorous awareness due to their widespread stability and functionality under harsh environmental conditions. The genus Planococcus is a halophilic bacterium known for the production of diverse secondary metabolites such as 2-acetamido-2-deoxy-α-d-glucopyranosyl-(1, 2)-β-d-fructofuranose exhibiting stabilizing effect and methyl glucosyl-3,4-dehydro-apo-8-lycopenoate displaying antioxidant activity. The genus Planococcus is reported generally for hydrocarbon degradation in comparison with biosurfactant/bioemulsifier secretion. Although Planococcus was proposed in 1894, it seized long stretch (till 1970) to get accommodated under the genus Planococcus authentically. Large-scale biosurfactant production from Planococcus was reported in 2014 with partial characterization. For the first time in 2019, we documented genomic and functional analysis of Planococcus sp. along with the physico-chemical properties of its biosurfactant. In 2020, again we screened biosurfactant for pharmacological applications. The present review discusses the comprehensive genomic insights and physical properties of Planococcus-derived biosurfactant. Moreover, we also highlight the prospects and challenges in biosurfactant production from Planococcus sp. Among ∼102 reports on biosurfactant produced by marine bacteria, 43 were of glycolipid and 59 were non-glycolipid type. Under other biosurfactant type, they were identified as lipopeptide (20) like surfactin (5), glycolipoprotein/lipoprotein (12), and other non-glycolipid (22). Planococcus sp. generally produces glycolipid-type biosurfactant (4) and exopolysaccharides (2). The single report documented in the literature is on biosurfactant production (glycolipid +non glycolipid) by diverse marine microbes (39) suggesting their novelty and diversity for biosurfactant secretion.
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Affiliation(s)
| | - Mangesh Suryavanshi
- Yenepoya Research Centre, Yenepoya Deemed to be University, Mangalore, India
| | - Deepansh Sharma
- Amity Institute of Microbial Technology, Amity University, Rajasthan, India
| | - Surekha K Satpute
- Department of Microbiology, Savitribai Phule Pune University, Pune, India
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13
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Poyai T, Getwech C, Dhanasin P, Punyapalakul P, Painmanakul P, Chawaloesphonsiya N. Solvent-based washing as a treatment alternative for onshore petroleum drill cuttings in Thailand. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 718:137384. [PMID: 32105921 DOI: 10.1016/j.scitotenv.2020.137384] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
In Thailand, onshore drill cuttings (DC) contaminated with total petroleum hydrocarbon (TPH) are currently transported off-site for incineration, causing high transportation cost and potential leakage to the environment. To address the issues, we develop solvent-based washing as a greener alternative for onshore DC remediation, focusing on solvent selection, washing process optimization, and solvent recovery. The results showed that ethyl lactate (EL) was the best green solvent for DC washing, compared to water, ethylene glycol, and ethyl acetate. Based on response surface methodology assisted with central composite design, the maximum TPH removal of 87.1% was achieved from 4 mL g-1 liquid-to-solid ratio, 14 min washing time, and 80 rpm stirring speed, and the TPH removal rate by EL fitted well with the second-order reaction (R2 = 0.9774). Furthermore, the spent EL was successfully recycled by simple and low-energy adsorption using granular activated carbon (GAC). With the sufficient GAC dosage, TPH could be completely removed from the spent EL without impairing the original EL properties. Moreover, the recycled EL exhibited its successful reuse in the subsequent DC washing process. These findings suggest that solvent washing accompanied with solvent recovery by adsorption could be a novel and greener remedial scheme for onshore DC management.
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Affiliation(s)
- Thaksina Poyai
- International Program in Hazardous Substance and Environmental Management, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand
| | - Chiratthakan Getwech
- PTT Exploration and Production Public Company Limited (PTTEP), Bangkok 10900, Thailand
| | - Phanachit Dhanasin
- PTT Exploration and Production Public Company Limited (PTTEP), Bangkok 10900, Thailand
| | - Patiparn Punyapalakul
- Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pisut Painmanakul
- Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand; Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; Research Unit on Technology for Oil Spill and Contamination Management, Chulalongkorn University, Bangkok 10330, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand
| | - Nattawin Chawaloesphonsiya
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; Research Unit on Technology for Oil Spill and Contamination Management, Chulalongkorn University, Bangkok 10330, Thailand.
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Khoshkholgh Sima NA, Ebadi A, Reiahisamani N, Rasekh B. Bio-based remediation of petroleum-contaminated saline soils: Challenges, the current state-of-the-art and future prospects. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 250:109476. [PMID: 31476519 DOI: 10.1016/j.jenvman.2019.109476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/17/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
Exploiting synergism between plants and microbes offers a potential means of remediating soils contaminated with petroleum hydrocarbons (PHCs). Salinity alters the physicochemical characteristics of soils and suppresses the growth of both plants and soil microbes, so the bioremediation of saline soils requires the use of plants and in microbes which can tolerate salinity. This review focuses on the management of PHC-contaminated saline soils, surveying what is currently known with respect to the potential of halophytes (plants adapted to saline environments) acting in concert with synergistic microbes to degrade PHCs. The priority is to identify optimal combinations of halophyte(s) and the bacteria present as endophytes and/or associated with the rhizosphere, and to determine what are the factors which most strongly affect their viability.
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Affiliation(s)
- Nayer Azam Khoshkholgh Sima
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Ali Ebadi
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Narges Reiahisamani
- Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Behnam Rasekh
- Microbiology and Biotechnology Research Group, Research Institute of Petroleum Industry, Tehran, Iran.
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15
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Romero-Silva R, Sánchez-Reyes A, Díaz-Rodríguez Y, Batista-García RA, Hernández-Hernández D, Tabullo de Robles J. Bioremediation of soils contaminated with petroleum solid wastes and drill cuttings by Pleurotus sp. under different treatment scales. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1236-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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16
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Potts LD, Perez Calderon LJ, Gubry-Rangin C, Witte U, Anderson JA. Characterisation of microbial communities of drill cuttings piles from offshore oil and gas installations. MARINE POLLUTION BULLETIN 2019; 142:169-177. [PMID: 31232291 DOI: 10.1016/j.marpolbul.2019.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/03/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Drill cuttings (DC) are produced during hydrocarbon drilling operations and are composed of subsurface rock coated with hydrocarbons and drilling fluids. Historic disposal of DC at sea has resulted in the formation of large piles on the seabed that may be left in situ following infrastructure decommissioning. This study provides a first insight into the microbial abundance, diversity and community structure of two DC piles from North Sea oil and gas installations. The abundance of both bacteria and archaea was lower in DC than in surrounding natural sediments. Microbial diversity and richness within DC were low but increased with distance from the piles. Microbial community structure was significantly different in DC piles compared to nearby natural sediments. DC bacterial communities were dominated by Halomonas, Dietzia and Dethiobacter. The presence of such organisms suggests a potential function of hydrocarbon degradation ability and may play an active role in DC pile remediation.
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Affiliation(s)
- Lloyd D Potts
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom; Chemical and Materials Engineering, School of Engineering, University of Aberdeen, Aberdeen, United Kingdom.
| | - Luis J Perez Calderon
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom; Chemical and Materials Engineering, School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
| | - Cecile Gubry-Rangin
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Ursula Witte
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - James A Anderson
- Chemical and Materials Engineering, School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
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