Bioremediation Journal 

About: Bioremediation Journal is an academic journal published by Taylor & Francis. The journal publishes majorly in the area(s): Bioremediation & Biodegradation. It has an ISSN identifier of 1088-9868. Over the lifetime, 626 publications have been published receiving 12703 citations.

Laccases: A Useful Group of Oxidoreductive Enzymes

Abstract: Using enzymes as decontaminating agents has received great attention. One of the most promising groups of enzymes, laccases, are used to decontaminate phenol-polluted systems and for bio technological applications. Higher plants and fungi, mostly wood-rotting fungi, are the main producers of laccases, but bacterial laccases also have been found. Belonging to the class of phenoloxidases, laccases catalyze the polymerization of several phenolic substances to polymeric products. In addition, they have transformed lignin and lignin-related compounds, showing a very broad substrate specificity. Specific compounds acting as protein-synthesis inducers historically have been used to improve the production of the enzyme. Recent success in fungal molecular and cellular engineering technology has contributed to significantly increase the industrial production of recombinant laccase. Kinetic (Michaelis-Menten parameters, optimum pH, kcat) and stability properties of laccases may vary according to the source of the en...

Perchlorate Chemistry: Implications for Analysis and Remediation

Abstract: Since the discovery of perchlorate in the ground and surface waters of several western states, there has been increasing interest in the health effects resulting from chronic exposure to low (parts per billion [ppb]) levels. With this concern has come a need to investigate technologies that might be used to remediate contaminated sites or to treat contaminated water to make it safe for drinking. Possible technologies include physical separation (precipitation, anion exchange, reverse osmosis, and electrodialysis), chemical and electrochemical reduction, and biological or biochemical reduction. A fairly unique combination of chemical and physical properties of perchlorate poses challenges to its analysis and reduction in the environment or in drinking water. The implications of these properties are discussed in terms of remediative or treatment strategies. Recent developments are also covered.

History and Ecology of Chloroethene Biodegradation: A Review

Abstract: (2003). History and Ecology of Chloroethene Biodegradation: A Review. Bioremediation Journal: Vol. 7, No. 2, pp. 81-109.

A Review of Chlorate- and Perchlorate-Respiring Microorganisms

Abstract: Chlorate (CIO3 −) and perchlorate (CIO4 −) have been manufactured in large quantities, and therefore it is not surprising that they have been found at high concentrations (>50 mg/L and >1000 mg/L, respectively) in surface waters and groundwaters around the world. These compounds are chemically stable in water, and they are difficult to remove using typical physical-chemical water treatment technologies. Fortunately, chlorate and perchlorate can be removed by biodegradation to low levels in water. Both compounds are highly oxidized and can serve as electron acceptors for several strains of microorganisms under anoxic conditions. Although it has been known for more than 40 years that chlorate can be reduced by mixed cultures, several bacteria have been isolated recently that are able to respire using either chlorate or perchlorate. The purpose of this paper is to review the characteristics of these mixed cultures and isolates in order to assess their future potential for biological water and wastewater trea...

Biodegradation Rates for Fuel Hydrocarbons and Chlorinated Solvents in Groundwater

Abstract: Numerous studies presented in the general literature have shown that the key mechanism affecting the rate and extent of migration of a contaminant plume is biodegradation since it removes contaminant mass and reduces average plume concentrations. This paper attempts to address the importance of biodegradation for fuel and chlorinated solvent plumes and to present a comprehensive review of rates of biodegradation obtained from field and laboratory studies. Data from approximately 280 studies are statistically analyzed to determine ranges of biodegradation rates for various contaminants under different redox conditions. A review of 133 studies for fuel hydrocarbons has yielded first-order biodegradation coefficients up to 0.445 day−1 under aerobic conditions and up to 0.522−1 under anaerobic conditions in 90% of the cases. A median rate constant for benzene of 0.3% day−1 was estimated from all studies, while those for toluene, ethylbenzene, and xylenes were estimated to be 4, 0.3, and 0.4% day−1, respective...