Terra Systems SRS - Model FRL - Large Droplet Emulsified Vegetable Oil Substrate
Terra Systems patented 'injection ready' 60% SRS-FRL Large Droplet Emulsified Vegetable Oil Substrate is added to the groundwater to rapidly generate reducing conditions and provide the necessary carbon and hydrogen to support native or introduced microorganisms (Dehalococcoides) for the biodegradation of chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE) to innocuous end products including ethene and ethane.
Key Communication Points
- 60% SRS®-FRL is designed for use in aquifers with high groundwater flowrates (>180 ft/year), Fractured Rock Formations or Permeable Reactive Barriers (PRB's). It is also used for remediation treatment near streams, rivers and estuaries.
- The 5 ?m droplet size results in better substrate retention in the subsurface.
- The anionic emulsifier (has a charge) results in better retention for the client because the substrate sticks more readily to the positively charged soil particles. It is specifically engineered to adhere to the formation, make contact with the bacteria and minimize the potential impact on nearby surface water.
- Provides 73% fermentable carbon.
- Has >98% biobased content.
- Includes sodium or potassium lactate to kick-start the anaerobic degradation process, nutrients and Vitamin B12 a micronutrient, which He et al. 2007 demonstrated is an important micronutrient to enhance dechlorination activity. It arrives as a homogenous injection ready substrate, which results in lower field labor costs from inefficient field mixing. Proven effective with PCE, TCE, TECA, DNAPL (Sabre Project), Perchlorate, TCA, Cr6+, TNT, Uranium and Nitrate. Proven effective at military installations (Kelly AFB), dry cleaners, semiconductor manufacturers, fabricators and manufacturing firms that use and clean metal parts (air conditioners, dishwashers, etc.).
Application:
Terra Systems patented, nutrient enriched, proven slow release SRS® FRL large droplet emulsified vegetable oil substrate with an anionic emulsifier is used when a long lasting carbon substrate is desired that provides maximum retention in high groundwater flow-rate aquifers. SRS® FRL sticks to soil particles and is specifically designed when adherence to the formation is key to making contact with the bacteria.
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