QRS® Family of Quick Release Lactate Substrates for In-Situ Bioremediation
Terra Systems “injection ready” Family of Sodium and Potassium Lactate Quick Release Substrates are 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 (Ellis et al. 2000).
Proprietary nutrients and Vitamin B12 can be added to sodium or potassium during the manufacturing process and has been statistically demonstrated to support biodegradation of chlorinated solvents with soluble substrates like lactate and emulsified vegetable oil. (He et al 2007 and Harkness et al 2012).
- 60% QRS™-SL sodium lactate is an inexpensive, soluble, food grade substrate for the biodegradation of chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE)
- 60% QRS™-SL Plus sodium lactate contains our Proprietary NutriPlus™ nutrient (Harkness et al 2012) and Vitamin B12 package (He et al 2007), which supports enhanced in-situ bioremediation and increases dechlorination kinetics and donor efficiency.
- 60% QRS™-PL potassium lactate is an inexpensive, soluble, food grade substrate for the biodegradation of chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE). It is often used in areas of Florida and California, which have restrictions on the amount of sodium (such as sodium lactate) that can be injected.
- 60% QRS™-PL Plus potassium lactate contains our Proprietary NutriPlus™ nutrient (Harkness et al 2012) and Vitamin B12 package (He et al 2007), which supports enhanced in-situ bioremediation and increases dechlorination kinetics and donor efficiency. It is often used in areas of Florida and California, which have restrictions on the amount of sodium (such as sodium lactate) that can be injected.
Family of QRS® Sodium and Potassium Lactate Fast Release Substrates.
| Product | Differentiation | Application | Benefit | Technical Data Sheet | Safety Data Sheet |
|---|---|---|---|---|---|
| QRS™-SL | 60% sodium lactate | 60% Sodium Lactate Remediation of chlorinated solvents | Fast acting for groundwater remediation | 60% QRS-SL Sodium Lactate Technical Data Sheet | 60% QRS-SL Sodium Lactate SDS |
| QRS™-Plus -SL | 60% Sodium Lactate with nutrients | Remediation of chlorinated solvents | Fast acting for groundwater remediation | 60% QRS-SL Plus Sodium Lactate Technical Data Sheet | 60% QRS-SL-Plus Sodium Lactate SDS |
| QRS™-PL | 60% Potassium Lactate | Remediation of chlorinated solvents | Fast acting for groundwater remediation | 60% QRS-PL Potassium Lactate Technical Data Sheet | 60% QRS-PL Potassium Lactate SDS |
| QRS™-Plus-PL | 60% Potassium Lactate with nutrients | Remediation of chlorinated solvents | Fast acting for groundwater remediation | 60% QRS-PL Plus Potassium Lactate Technical Data Sheet | 60% QRS-PL Plus Potassium Lactate 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 Buffers and Buffer Capacity Test Technical Data Sheet | pH Buff-Up SDS |
| Buffers | Sodium Bicarbonate, Sodium Carbonate, Magnesium Oxide | 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 |