An enriched, microbial consortium containing species of Dehalococcoides sp. (DHC) for anaerobic bioaugmentation

Designed for use at sites where chlorinated contaminants are present and unable to be completely biodegraded via the existing microbial communities

What is it?

Bio-Dechlor INOCULUM Plus (BDI Plus)® is an enriched, natural microbial consortium containing species of Dehalococcoides sp. (DHC) which are capable of completely dechlorinating contaminants during in situ anaerobic bioremediation processes.

How it works

BDI Plus is provided in a liquid form which is directly injected into the contaminated subsurface either with, or following, a staged-release electron donor (food source) application. Once in place, this microbial consortium accelerates the extant rate of chlorinated contaminant degradation from parent compounds to daughter products like dichloroethene (DCE) and vinyl chloride (VC) and completely through to harmless end products such as ethene and ethane.

BDI Plus can be used at most any stage of a project to ensure the rapid and complete degradation of chlorinated compounds. Specifically, BDI Plus can be added to an aquifer at the beginning of a project in situations where there is a lack of, or suboptimal populations of Dehalococcoides sp.

Target contaminants

  • Tetrachloroethylene (PCE)
  • Trichloroethene (TCE)
  • cis-1,2 Dichloroethene (DCE)
  • Vinyl chloride (VC)
  • Tetrachloroethane
  • Trichloroethane (TCA)
  • Dichloroethane (DCA)
  • Carbon tetrachloride
  • Chloroethane

For a complete listing of treatable contaminants please visit our Range of Treatable Contaminants Page.


  • Rapid and effective treatment of undesirable intermediates
  • A low-cost means of enhancing the anaerobic biodegradation process
  • Application can occur at almost any stage of a project


  • Injection into permanent injection wells
  • Injection via direct-push points
  • For more information, please read the Application Instructions

Electron Donor Compatibility

BDI Plus is compatible with most electron donors however it is recommended that remediation practitioners use a staged-release technology like
3-D Microemulsion® or AquiFix for optimal performance and longevity.


Spec Sheet

bdi plus spec sheet

Application Guide

Comingled plume treatment

TCE VI UK - Featured Image