BIOREMEDIATION SOLVENTS TESTED AND PROVEN TO REMOVE CONTAMINANTS FROM SOIL AND WATER.

Terra Systems (TSI)experience indicates that site remediation costs for remediation technologies are generally consistent with the cost metrics, which are discussed in Quinton et al's 1997 paper entitled “A method to compare groundwater cleanup technologies”.  In that paper, the authors predict costs (on a net present cost basis) for Natural Attenuation to be 9% and Accelerated Anaerobic Bioremediation to be 13% of a Pump-and-Treat System, i.e. a savings of 91% and 87% respectively.

There are basically three different techniques for in situ biological transformation of chlorinated contaminants: Natural Attenuation; Passive Accelerated Anaerobic Bioremediation; and Accelerated Anaerobic Bioremediation.  Depending on site conditions, economics, and the site owner's goals, one or more of these techniques can be used at the site.  Read more...Rationale for Biological Approach.

TSI’s family of SRS^® Slow Release Emulsified Vegetable Oil Substrates are patented engineered products for the reductive dechlorination of chlorinated solvents or any anaerobically degradable substance.  The substrate package is a low viscosity liquid that contains a combination of slow and fast release electron donors and nutrients.  Its viscosity, once diluted, is similar to that of milk which translates into a significantly larger dispersion pattern than other products.  One injection will typically enhance biological activity for up to 3 to 5 years. Our family of SRS^® emulsified vegetable oil substrates allow the PM to choose the right product for their needs and reduces the likelihood of “trying to fit a square peg into a round hole”.

·        SRS^®-SD small droplet emulsified vegetable oil substrate (EVO) for formations where the radius of influence is critical

·        SRS^®-FR large droplet emulsified vegetable oil substrate (EVO) for fractured rock formations and barrier systems where retention in the formation is critical

·        SRS^®-M_etals emulsified vegetable oil substrate (EVO) for the conversion and precipitation of Cr⁶⁺ to Cr³⁺

·         SRS^®-B_uffered emulsified vegetable oil substrate (EVO) for very low pH aquifers

·         SRS^®-C_ustom is a custom emulsified vegetable oil substrate (EVO) blend that you specify of our small droplet SRS^®-SD and large droplet SRS^®-FR. You specify the recipe.

TSI DC Dehalococcoides ethenogenes Bioaugmentation Culture^® is an enriched bacteria culture that contains >1 x 10¹⁰ Dehalococcoides cells/L for bioaugmentation.  It can be used at sites where bacteria capable of complete reductive dechlorination of tetrachloroethene (PCE) or trichloroethene (TCE) are not present, found in low numbers, or where there is a need to decrease the remediation time frame.

QRS Quick Release Sodium Lactate Substrate is an engineered product for the reductive dechlorination of chlorinated solvents or any anaerobically degradable substance.  This substrate package contains a fast release electron donor in addition to a nutrient package.  It is intended for projects that are on a fast track.  One injection will typically enhance biological activity for 1 to 3 months.

Microbubbler is an inexpensive oxygen generation and delivery system that reduces the cost of dissolved oxygen to below $0.40 per pound.  Depending on site conditions, the typical oxygen requirement for biodegradation of petroleum hydrocarbons is 2 to 3 pounds.  The cost of alternative sources of oxygen such as solid peroxygens can be extremely high in comparison.