High flow-rate EVO
SRS®-PRB
Large-droplet EVO with an anionic emulsifier, purpose-built for PRB in high-flow aquifers.
- PCE (Tetrachloroethene (PCE))
- TCE (Trichloroethene (TCE))
- 1,1,1-TCA (1,1,1-Trichloroethane)
- Cr(VI) (Hexavalent chromium)
- Perchlorate
- Nitrate
- cis-1,2-DCE (cis-1,2-Dichloroethene)
- 1,1-DCE (1,1-Dichloroethene)
- VC (Vinyl chloride)
- 1,1,2-TCA (1,1,2-Trichloroethane)
- 1,1-DCA (1,1-Dichloroethane)
- Chloroethane
- Carbon tetrachloride
- Chloroform
- Methylene chloride
SRS®-PRB has a large, average 5 µm droplet and a proprietary anionic emulsifier make the substrate adhere to aquifer solids, which is what makes SRS®-PRB suited to high groundwater flow rates (greater than roughly 180 feet per year), fractured rock formations and permeable reactive barriers.
Benefits
- Anionic emulsifier and large droplet adhere to the formation in high-flow and fractured-rock aquifers
- Releases bio-available hydrogen over roughly 1 to 3 years
- Large-droplet, anionic-emulsifier formulation maximizes retention at the barrier location
- Used in permeable reactive barriers
Specifications
| Product code | SRS-PRB |
|---|---|
| Substrate type | Emulsified vegetable oil (EVO) |
| Soybean oil content | 60% |
| Quick-release substrate | 5.5% |
| Droplet size | 5 µm (large droplet) |
| Emulsifier / surfactant | Anionic emulsifier (5 – 15%) |
| Additional component | Pending TDS |
| Nutrients | Organic and inorganic nutrients |
| Vitamin B12 | Included |
| Specific gravity | Pending TDS |
| Viscosity | Pending TDS |
| pH | Pending TDS |
| Shelf life | Pending TDS |
| Available in | 5-gallon bucket · 55-gallon drum · 275-gallon IBC tote · 275-gallon cardboard tote |
Site suitability
Site conditions this product suits, from Terra Systems' product selection questionnaire.
| Distribution | Maximum retention |
|---|---|
| Injection method |
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| Groundwater flow rate (ft/day) |
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| Geology |
|
| Contaminant concentration (mg/L) |
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| Treatment volume (ft³) |
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| Distance to water body or receptor (ft) |
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Marked conditions are suitable for this product.
01 Related resources
Case studies, papers and manuals.
- A Non-Traditional Technology to Reduce Nitrogen Flux and Meet Estuary Nitrogen TMDLs (PDF)Technical paper · 2024 · Prepared for the Southeast New England Program (SNEP)
- Introduction to Harmful Algal Blooms & An In-Situ Treatment Strategy (PDF)Presentation · 2023 · Enviro Class webinar, December 2023
- Permeable Reactive Barriers for Removal of Nitrate from Groundwater Through Injection of Emulsified Vegetable Oil: Engineering Design Manual (PDF)Design manual · 2023 · Woods Hole Oceanographic Institution / ISOTEC / Terra Systems, Inc., prepared for the Southeast New England Program (SNEP)
- Combined EVO and ZVI for Enhanced Remediation of Chlorinated SolventsPresentation · 2021
- ZVI and SRS®-Z Columns with Sulfidation for Treatment of VOCs and Hexavalent Chromium (PDF)Technical paper · 2021 · Terra Systems, Inc.
- Optimizing Injection Strategies and In Situ Remediation Performance (PDF)Design manual · 2020 · Interstate Technology & Regulatory Council (ITRC)
02 Contact
Get SRS®-PRB priced for your site.
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