The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Sunita Varjani - One of the best experts on this subject based on the ideXlab platform.
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Microbial degradation of petroleum hydrocarbons.
Bioresource technology, 2016Co-Authors: Sunita VarjaniAbstract:Petroleum hydrocarbon pollutants are recalcitrant compounds and are classified as priority pollutants. Cleaning up of these pollutants from environment is a real world problem. Bioremediation has become a major method employed in restoration of petroleum hydrocarbon polluted environments that makes use of natural Microbial Biodegradation activity. Petroleum hydrocarbons utilizing microorganisms are ubiquitously distributed in environment. They naturally biodegrade pollutants and thereby remove them from the environment. Removal of petroleum hydrocarbon pollutants from environment by applying oleophilic microorganisms (individual isolate/consortium of microorganisms) is ecofriendly and economic. Microbial Biodegradation of petroleum hydrocarbon pollutants employs the enzyme catalytic activities of microorganisms to enhance the rate of pollutants degradation. This article provides an overview about bioremediation for petroleum hydrocarbon pollutants. It also includes explanation about hydrocarbon metabolism in microorganisms with a special focus on new insights obtained during past couple of years.
A. Chesterikoff - One of the best experts on this subject based on the ideXlab platform.
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Polychlorobiphenyl behaviour in the water/sediment system of the Seine river, France
Water Research, 1998Co-Authors: Marc Chevreuil, M. Blanchard, M.j. Teil, A. ChesterikoffAbstract:Abstract Investigations concerning the polychlorinated biphenyl (PCB) levels conducted from 1984 to 1992, showed persistent pollution in the surface sediment of the Seine river (from 50 to 26000 μg/kg of dry weight). A significant correlation between the particulate organic carbon (POC) and the PCB levels in the surface sediment was found (P⩽0.05). In sediment from different depths (3, 10 and 25 cm), our results led to the same conclusion: PCB levels increased according to the depth and were related to the rise of POC levels. Sediment PCB patterns at Maisons Laffitte, Acheres and Porcheville showed no Microbial Biodegradation in the sediment of the Seine river even in the deepest sediment under methanogenic conditions. The distribution of different PCB components in the sediment appeared to depend mainly on their physical and chemical properties.
Atul N. Vaidya - One of the best experts on this subject based on the ideXlab platform.
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Bioreactors for treatment of VOCs and odours - a review.
Journal of environmental management, 2010Co-Authors: Sandeep N. Mudliar, Balendu Shekher Giri, K.v. Padoley, Dewanand Satpute, Rashmi M. Dixit, Praveena Bhatt, R.a. Pandey, Asha A. Juwarkar, Atul N. VaidyaAbstract:Volatile organic compounds (VOCs) and odorous compounds discharged into the environment create ecological and health hazards. In the recent past, biological waste air treatment processes using bioreactors have gained popularity in control of VOCs and odour, since they offer a cost effective and environment friendly alternative to conventional air pollution control technologies. This review provides an overview of the various bioreactors that are used in VOC and odour abatement, along with details on their configuration and design, mechanism of operation, insights into the Microbial Biodegradation process and future R&D needs in this area.
Husein Yemendzhiev - One of the best experts on this subject based on the ideXlab platform.
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Microbial degradation of phenol and phenolic derivatives
Engineering in Life Sciences, 2013Co-Authors: Albert Krastanov, Z. Alexieva, Husein YemendzhievAbstract:Phenol and its derivatives are one of the largest groups of environmental pollutants due to their presence in many industrial effluents and broad application as antibacterial and antifungal agents. A number of Microbial species possess enzyme systems that are applicable for the decomposition of various aliphatic and aromatic toxic compounds. Intensive efforts to screen species with high-degradation activity are needed to study their capabilities of degrading phenol and phenolic derivatives. MostofthecurrentresearchhasbeendirectedattheisolationandstudyofMicrobial species of potential ecological significance. In this review, some of the best achievementsindegradingphenoliccompoundsbybacteriaandyeastsarepresented,which draws attention to the high efficiency of strains of Pseudomonas, Candida tropicalis, Trichosporon cutaneum, etc. The unique ability of fungi to maintain their degradation potential under conditions unfavorable for other microorganisms is outstanding. Mathematical models of the Microbial Biodegradation dynamics of single and mixed aromatic compounds, which direct to the benefit of the processes studied in optimization of modern environmental biotechnology are also presented.
Marc Chevreuil - One of the best experts on this subject based on the ideXlab platform.
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Polychlorobiphenyl behaviour in the water/sediment system of the Seine river, France
Water Research, 1998Co-Authors: Marc Chevreuil, M. Blanchard, M.j. Teil, A. ChesterikoffAbstract:Abstract Investigations concerning the polychlorinated biphenyl (PCB) levels conducted from 1984 to 1992, showed persistent pollution in the surface sediment of the Seine river (from 50 to 26000 μg/kg of dry weight). A significant correlation between the particulate organic carbon (POC) and the PCB levels in the surface sediment was found (P⩽0.05). In sediment from different depths (3, 10 and 25 cm), our results led to the same conclusion: PCB levels increased according to the depth and were related to the rise of POC levels. Sediment PCB patterns at Maisons Laffitte, Acheres and Porcheville showed no Microbial Biodegradation in the sediment of the Seine river even in the deepest sediment under methanogenic conditions. The distribution of different PCB components in the sediment appeared to depend mainly on their physical and chemical properties.