High-rate biodegradation of pentachlorophenol by biofilm developed in the immobilized soil bioreactor
Article Abstract:
The use of a novel type of bioreactor, the immobilized soil biofilm reactor (ISBR), for the biodegradation of pentachlorophenol (PCP) in aqueous solutions, was studied. Results of the study will be of considerable significance for the development of new systems for in situ biotreatment of groundwater contaminated with PCP, as well as for the design of immobilized soil bioreactors for an aboveground treatment of aqueous solutions of PCP. It was found that the aerobic biodegradation of PCP is substantially less affected by variations in the various physico-chemical factors when carried out in a biofilm, compared to a free suspended culture. Among the primary advantages of this approach are very high volumetric removal efficiency; ad efficient PCP degradation over a wide range of pH values.
Comment:
Use of the immobilized soil biofilm reactor for the biodegradation of pentachlorophenol (PCP) in aqueous solutions, was studied
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Temporal and spatial trends in biogeochemical conditions at a groundwater-surface water interface: implications for natural bioattenuation
Article Abstract:
Several observations were obtained about the temporal and spatial trends occurring at the groundwater-surface water interface. Contamination of the groundwater by chloroethane and methane decreased as oxygenation at shallow points along the interface increased. This higher level of oxygenation was the result of infiltration by the surface water. The primary bio-transforming mechanism working on contaminants in the deeper zones was reductive dechlorination.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Spatial variations and chronologies of aliphatic hydrocarbons in Lake Michigan sediments
Article Abstract:
Aliphatic hydrocarbons found in sediment cores from southern Lake Michigan are described in detail. The rate of accumulation of an unresolved complex mixture (UCM) is compared to the sedimentary rate of organic and terrestrial n-alkanes. Several graphs exhibit the author's findings, broken down by spatial differentiation and chronology.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
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