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Microaerophilic Dechlorination

With our Microaerophilic Dechlorination analysis microbial key parameters are determined, giving you insight into the potential for biodegradation of chlorinated ethenes under microaerophilic conditions. On request we can give you advice on stimulating and managing microaerophilic dechlorination in for your specific situation.

Analysis essentials

  • To establish the capacity for natural microaerophilic degradation of chlorinated ethenes for your location
  • To determine the spread of micro-organisms that microaerophilically degrade chlorinated ethenes in groundwater
  • To monitor the potential for the reduction of microbial chlorinated ethenes in time (does it increase or decrease?)

Content of the package

The following micro-organisms and key parameters are detected and quantified with our Microaerophilic dechlorination analysis:

  • The microbial species Polaromonas JS666 which can convert DCE to CO2
  • A gene specific for the degradation of Vinyl chloride to CO2 (Epoxyalkane coenzyme M transferase)
  • A gene specific for the degradation of Vinyl chloride and ethylene to CO2 (Alkene monooxygenase)
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Background information

CVOC (Chlorinated Volatile Organic Carbons) like PCE (perchloroethene) and TCE (trichloroethene) have many applications, especially as a solvent or degreaser. Because they were frequently used in the past, many sites are contaminated with these compounds. Under strictly anaerobic conditions the bacterium Dehalococcoides is the only species of bacteria that completely convert PCE and TCE  to harmless end products ethene and ethane. In addition to reductive dechlorination there is another decomposition process that can occur. In the presence of very low oxygen concentrations of about 0.1 mg/l, cis-DCE and Vinylchloride can be broken down further to CO2 and water (this process is called microaerophilic degradation). The microbial key parameters which play a vital role in the microaerophilic degradation of CVOC are known. These key parameters are detected and quantified with our Microaerophilic dechlorination package, resulting in a fast and effective tool to gain insight into the microaerophilic degradation potential of CVOC on your contaminated location.