SRS® Family of Emulsified Vegetable Oil Substrates for In-Situ Bioremediation
The anaerobic bioremediation process uses native or introduced microorganisms (Dehalococcoides) to degrade chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE) to innocuous end products including ethene and ethane. Terra Systems unique, flexible, just-in-time manufacturing facility allows us to produce Terra Systems patented SRS® Family of Emulsified Vegetable Oil Substrates to meet the PM’s specific site requirements. SRS® is added to the groundwater to rapidly generate reducing conditions and provide the necessary carbon and hydrogen to support biodegradation of the chlorinated solvents. Each product is manufactured with the optimal piece of manufacturing equipment, which allows us to manufacture:
- EVO products with 45% – 90% soy bean oil
- Small and large droplet sizes for optimal radius of influence or optimal retention within the aquifer
- With or without nutrients and quick release substrates to reduce costs
| Product | Diffrentiation | Application | Benefit | Technical Data Sheet | Safety Data Sheet (SDS) |
|---|---|---|---|---|---|
| SRS®-SD EVO (45 -60% soybean oil) | Small droplet emulsified vegetable oil (EVO); nonionic emulsifier, lactate, nutrients & Vitamin B12 | Remediation of chlorinated solvents in aquifers with groundwater flow rate (gwfr) <180 ft/yr | Maximum radius of influence (ROI); longevity | 60% SRS-SD Technical Data Sheet | 60% SRS-SD SDS |
| SRS®-SD-Basic EVO (45 -60% soybean oil) | Small droplet emulsified vegetable oil (EVO); nonionic emulsifier; does not include quick release substrate or nutrients | Remediation of chlorinated solvents in aquifers with groundwater flow rate (gwfr) <180 ft/yr | Maximum radius of influence (ROI); longevity; lower cost | 60% SRS-SD-Basic Technical Data Sheet | 60% SRS-SD-Basic SDS |
| SRS®-STA EVO (45 -60% soybean oil) | Viscosity decreases as injection pressure increases | Remediation of chlorinated solvents in heterogeneous aquifers | Increased distribution in heterogeneous formations | 60% SRS-STA Technical Data Sheet (2020-01F) | 60% SRS-STA SDS |
| SRS®-FRL EVO (45 -60% soybean oil) | Large droplet emulsified vegetable oil (EVO), anionic (stickier) emulsifier, lactate, nutrients & Vitamin B12 | Remediation of chlorinated solvents in aquifers with high gwfr >180 ft/yr or close to streams, rivers or estuaries or in permeable reactive barriers | Maximum retention; longevity | 60% SRS-FRL Technical Data Sheet | 60% SRS-FRL SDS |
| SRS®-FRL-Basic EVO (45 -60% soybean oil) | Large droplet EVO anionic (stickier) emulsifier; does not include quick release substrate or nutrients | Remediation of chlorinated solvents in aquifers | Maximum retention; longevity; Lower cost | 60% SRS-FRL-Basic Technical Data Sheet | 60% SRS-FRL-Basic SDS |
| SRS®-NR EVO | Large droplet EVO with anionic emulsifiers | Remediation of nitrate and perchlorate in high gwfr sites | Maximum retention; longevity | 60% SRS-NR Technical Data Sheet | 60% SRS-NR SDS |
| SRS®-M EVO (45 -60% soybean oil) | Small or large droplet SRS® with 10 - 50 g/L food grade abiotic reductant | Remediation of mixed plumes of chlorinated solvents and reducible metals like hexavalent chromium (Cr6+) | Simultaneous reduction of chlorinated solvents and Cr6+; longevity | 60% SRS-M Technical Data Sheet | 60% SRS-M SDS |
| SRS®-C EVO | Custom formulation specified by consultant | Remediation of chlorinated solvents | Optimize for source and diffuse plume treatment | 60% SRS-C Technical Data Sheet | 60% SRS-C SDS |
| NutriPlus™ | Nutrient package including N, P, trace minerals, and vitamins including B12 | Addition of nutrients to carbon substrates | Improved microbial activity and dechlorination efficiency | NutriPlus Technical Data Sheet | NutriPlus SDS |
| pH Buff-Up | Slurry of 50% calcium carbonate in water combined with a proprietary thickener to optimize the pH at a site. | pH optimization at a site. | Maintain optimal pH conditions for reductive dechlorination | pH Buff-Up Technical Data Sheet | pH Buff-Up SDS |
| Buffers | Sodium Bicarbonate, Sodium Carbonate, Magnesium Oxide, Calcium Carbonate | Add to chase/dilution water for low pH (<6.0) aquifers | Maintain optimal pH for microbes | pH Buffers and Buffer Capacity Test Technical Data Sheet | Sodium Bicarbonate SDS Sodium Carbonate Anhydrous SDS Magnesium Oxide SDS Calcium Carbonate SDS |