Chlorobenzene degradation by bacteria isolated from contaminated groundwater

Article Abstract:

The microbial consortium from chlorobenzene (CB)-contaminated ground water was isolated and characterized. Four types of microorganisms were detected based on their biochemical reactions, gram reaction, morphology, motility and colony appearance. The entire consortium was able to mineralize 54% of CB within seven days. Of the four types, one was not able degrade CB, while another accumulated potentially toxic intermediates. However, the other two types were able to mineralize CB as well as the chlorocatechol intermediates. The biodegradation rates were limited only by the supply of oxygen and inorganic nutrients.

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Monitoring bacterial transport by stable isotope enrichment of cells

Article Abstract:

Researchers describe a method of tracking the movement of bacteria in water and soil by altering the stable carbon isotope value of the cells. This technique could be used to track bacteria that are introduced to biodegrade pollutants and to distinguish them from the indigenous bacteria.

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An improved spectrophotometric method to study the transport, attachment, and breakthrough of bacteria through porous media

Article Abstract:

Research describes an improved spectrophotometric method for estimating bacterial populations in the porous media. Data indicate that the technique minimizes collision efficiency and bed ripening index artifacts which have implications in the subsurface bioremediation engineering.

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