By creating optimal conditions in the subsurface ETEC's reductive dechlorination process results in complete dechlorination with no build up of hazardous daughter products such as Vinyl Chloride. 

Typical anaerobic bioremediation products are focused on applying a certain electron donor substrate. ETEC took a different approach when designing our anaerobic bioremediation products. Our anaerobic bioremediation products were formulated based on fundamental principles that include an easily-degradable substrate, necessary nutrients, and ease of application on a site-wide basis.


Use our anaerobic bioremediation products with the following treatments:


CarBstrate™ is a B-vitamin and nutrient-amended carbohydrate substrate specifically designed for in situ application.  In addition to its high solubility and low-retardation factor, it is a non-toxic, food-grade product that includes the macro-nutrients that are necessary for effective microbial growth (i.e. N and P) as well as a specific suite of trace mineral that are critical for active anaerobic microbial activity. 



CarBstrate™ is a dry powder that is mixed with water for subsequent subsurface injection or recirculation.  Once delivered into a target saturated zone, this nutrient-amended carbohydrate will stimulate consumption of terminal electron acceptor (TEA) sinks (i.e. dissolved oxygen, nitrate, sulfate, etc.) and provide available total organic carbon (TOC) that will maintain sulfate-reducing and/or methanogenic conditions throughout the target saturated zone.  Additional product information shown in the table below.


NutriChlor™ is a blend of inorganic compounds and trace minerals that are critical for growth of anaerobic microbial species, especially those that play important roles in the reductive dechlorination process. NutriChlor™ was developed specifically to supplement the use of any electron donor substrate (i.e. lactate, edible oils, etc.).

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SDC-9™ Dechlorinating Culture (Bioaugmentation)


SDC-9™ dechlorinating culture was developed by APTIM to treat chlorinated solvent contaminated aquifers. The culture contains Dehalococcoides sp. (DHC) bacteria that degrade a wide range of chlorinated contaminants via dehalorespiration.  In addition to degrading highly chlorinated ethenes like PCE and TCE, the culture rapidly dechlorinates cDCE and VC to non-toxic ethene. Combined with ETEC’s CarBstrate or Nutrichlor (site dependent) SDC-9 can be added as part of your overall approach to achieving remedial goals.


The SDC‐9 culture is a pathogen‐free, non‐genetically altered microbial consortium capable of biologically degrading halogenated aliphatic pollutants including 1,1,1‐TCA, 1,1,2‐TCA, 1,1‐DCA, 1,2‐DCA, 1,2‐DBE, TCA, CT, CF, PCE, TCE, cDCE, VC, and Freon 113 (1,2‐dichloro‐1,2‐difluoroethane), and mixtures thereof. Molecular biological analyses of the SDC‐9 culture has demonstrated that the culture has at least three closely‐related strains of Dehalococcoides sp. bacteria which is the only bacterial genus known to degrade chlorinated ethenes completely to ethene. In addition, the culture contains other known pollutant degrading bacteria, including Desufitobacterium and Desulfovibrio strains.

  • Not inhibited by chloroform

  • Performs at pH levels as low as 5.5 (Vainberg and Steffan, 2014)

  • Up to tenfold cell concentration available to reduce shipping costs

  • Applied more than 650 times (well over 100,000 L) in the United States

  • SDC-9 can be applied via direct injection

  • ETEC’s In Situ Delivery System (ISD) makes dosing with SDC‐9 simple