15 products
Anaerobic solutions
Sustained and quick-release electron donors plus the cultures that finish the dechlorination pathway to ethene, for faster, more complete treatment of chlorinated solvents.
01 In situ remediation
Practical, proprietary remediation technology backed by 34 years of science
We formulate and manufacture the substrates, cultures and reagents used to treat chlorinated solvents, petroleum and metals in soil and groundwater. Every batch is blended in our own plant, and our own lab runs the treatability testing behind it.
- 1992Manufacturing since
- 300+Lab-validated treatability studies
- Claymont, DEBlended and shipped in house
02 Remediation solutions
Start with the contaminant, not the catalog.
Narrow the catalog by what is in the ground, the treatment mechanism you have selected, or how the reagent will be placed. Every filter state has its own address, so a case study or a proposal can link straight to it.
6 solution families, 39 products/remediation-solutions/Link to this filtered view in the solutions catalog
2 products
Aerobic solutions
Slow oxygen release for aerobic biodegradation of petroleum hydrocarbons and fuel oxygenates, where a reducing zone is not the goal.
- TSI-CPO
- TSI-RR®
7 products
ZVI solutions
Micro-scale zero-valent iron blended into substrate for combined abiotic and biotic treatment of chlorinated solvents and DNAPL.
- SRS®-ZVI: 3
- QRS™-GLY-ZVI: 3
- EZVI: 1
2 products
Chemical oxidation
Persulfate and its activator for oxidative destruction of hydrocarbons, fuel oxygenates, chlorinated solvents and 1,4-dioxane in high-concentration source areas.
- TSI-SPS™
- TSI-FSA™
2 products
Surfactant solutions
Biodegradable surfactants that reduce interfacial tension and mobilize heavier hydrocarbons and chlorinated solvents, with a lab screening test to select the right formulation.
- E-Mulse 3
- E-Mulse 10
11 products
Buffers & additives
pH buffers, nutrient additives and dry viscosifiers that keep a treatment zone in range for chemical oxidation and bioremediation.
- Buffers: 3
- Additives: 5
- Dry products: 3
No catalogued product matches that combination. Our chemists formulate to site conditions, so tell us what you are treating and we will build it.
Request A Custom FormulationMatching products
- SRS®-SDSmall-droplet EVOAnaerobic solutions, SRS® substratesPatented, injection-ready small-droplet emulsified vegetable oil (EVO) substrate containing 60% U.S.-grown soybean oil, 5.5% quick-release substrate, proprietary nutrients, and Vitamin B12 for anaerobic reductive dechlorination.
- SRS®-STAShear-thinning EVOAnaerobic solutions, SRS® substratesPatented, injection-ready EVO substrate: 60% soybean oil, 5.5% quick-release substrate, nutrients, and Vitamin B12, plus a shear-thinning agent that lowers viscosity under injection pressure to improve distribution in heterogeneous formations.
- SRS®-LDLarge-droplet EVOAnaerobic solutions, SRS® substratesPatented, injection-ready large-droplet EVO substrate (avg. 5 µm droplet) with 60% soybean oil, 5.5% quick-release substrate, proprietary nutrients, and Vitamin B12; larger droplets extend substrate longevity for reductive dechlorination.
- SRS®-LDLLarge-droplet, lecithinAnaerobic solutions, SRS® substratesPatented, injection-ready large-droplet EVO substrate (avg. 5 µm droplet) with 60% soybean oil, 5.5% quick-release substrate, nutrients, lecithin, and Vitamin B12; stickier emulsifier package improves retention on aquifer solids.
- SRS®-MEVO with metals reductantAnaerobic solutions, SRS® substratesPatented, injection-ready EVO substrate (60% soybean oil, 5.5% quick-release substrate, nutrients, Vitamin B12) with an added abiotic reductant to reduce metals such as hexavalent chromium. Available as M10 (10 g/L) or M20 (20 g/L) reductant.
- SRS®-NRHigh flow-rate EVO for nitrateAnaerobic solutions, SRS® substratesPatented, injection-ready EVO substrate containing 60% U.S.-grown soybean oil, 4.0% quick-release substrate, and anionic emulsifiers designed for high groundwater flow rates.
- SRS®-PRBEVO with sulfidated ZVIAnaerobic solutions, SRS® substratesPatented, injection-ready substrate combining emulsified vegetable oil with 125 µm sulfidated micro-scale zero-valent iron (ZVI) to form a permeable reactive barrier (PRB). Available with 5%, 10%, 15%, or 20% ZVI.
- QRS™-GLYGlycerol substrateAnaerobic solutions, QRS™ substratesInjection-ready 98% glycerol substrate—a soluble, food-grade carbon source for anaerobic biodegradation of chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE).
- QRS™-GLY+Glycerol PLUSAnaerobic solutions, QRS™ substratesInjection-ready 98% glycerol quick-release carbon substrate enhanced with proprietary nutrients and Vitamin B12 to support anaerobic reductive dechlorination of chlorinated solvents PCE and TCE.
- QRS-SL™Sodium lactateAnaerobic solutions, QRS™ substratesInjection-ready 60% sodium lactate substrate—a soluble, food-grade carbon source for anaerobic biodegradation of chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE).
- QRS-SL™+Sodium lactate PLUSAnaerobic solutions, QRS™ substratesInjection-ready 60% sodium lactate quick-release substrate enhanced with proprietary nutrients and Vitamin B12 for anaerobic reductive dechlorination of chlorinated solvents PCE and TCE.
- TSI-DC®Dehalococcoides mccartyiAnaerobic solutions, TSI® culturesBioaugmentation culture containing >1×10¹¹ Dehalococcoides mccartyi per liter for complete reductive dechlorination of chlorinated ethenes (PCE, TCE) through to ethene.
- TSI-TCA®DehalobacterAnaerobic solutions, TSI® culturesBioaugmentation culture of Dehalobacter formulated for anaerobic treatment of 1,1,1-trichloroethane (1,1,1-TCA).
- TSI-DC®/TSI-TCA®Blended cultureAnaerobic solutions, TSI® culturesA 50/50 blend of TSI-DC Dehalococcoides mccartyi and TSI-TCA Dehalobacter cultures for sites with mixtures of chlorinated ethenes (PCE, TCE) and chlorinated ethanes (1,1,1-TCA, 1,1-DCA).
- TSI-MDB1®Dehalobacter (MDB-1)Anaerobic solutions, TSI® culturesBioaugmentation culture of Dehalobacter (MDB-1) for anaerobic treatment of carbon tetrachloride, chloroform, and methylene chloride.
- TSI-CPOCalcium peroxideAerobic solutionsCalcium peroxide oxygen-release compound that slowly releases oxygen to promote aerobic biodegradation in soil and groundwater and/or to support chemical oxidation.
- TSI-RR®Rhodococcus ruberAerobic solutionsBioaugmentation culture of Rhodococcus ruber for aerobic cometabolic treatment of 1,4-dioxane, methyl tert-butyl ether (MTBE), and tert-butyl alcohol (TBA) with a cometabolic substrate such as propane or isobutane.
- SRS®-ZVI (4 µm)4 µm sulfidated ZVIZVI solutions, SRS®-ZVIPatented, injection-ready emulsified vegetable oil substrate with 4 µm sulfidated micro-scale zero-valent iron (ZVI) and a shear-thinning agent that maintains ZVI suspension and lowers viscosity under injection. Available with 5%, 10%, 15%, or 20% ZVI.
- SRS®-ZVI (44 µm)44 µm sulfidated ZVIZVI solutions, SRS®-ZVIPatented, injection-ready EVO substrate with 44 µm sulfidated micro-scale zero-valent iron (ZVI) and a shear-thinning agent to maintain suspension and reduce viscosity. Direct-push injection only. Available with 5, 10, 15, 20, 25, 30, or 40% ZVI.
- SRS®-ZVI (125 µm)125 µm sulfidated ZVIZVI solutions, SRS®-ZVIPatented, injection-ready EVO substrate with 125 µm sulfidated micro-scale zero-valent iron (ZVI) and a shear-thinning agent to maintain ZVI suspension and reduce viscosity under injection. Available with 5, 10, 15, 20, 25, 30, or 40% ZVI.
- QRS™-GLY-ZVI (4 µm)4 µm sulfidated ZVIZVI solutions, QRS™-GLY-ZVIInjection-ready quick-release substrate combining glycerol with 4 µm sulfidated micro-scale zero-valent iron (ZVI) for combined biotic and abiotic dechlorination. Available with 5%, 10%, or 15% ZVI.
- QRS™-GLY-ZVI (44 µm)44 µm sulfidated ZVIZVI solutions, QRS™-GLY-ZVIInjection-ready quick-release substrate combining glycerol with 44 µm sulfidated micro-scale zero-valent iron (ZVI) for combined biotic and abiotic dechlorination. Available with 5%, 10%, or 15% ZVI.
- QRS™-GLY-ZVI (125 µm)125 µm sulfidated ZVIZVI solutions, QRS™-GLY-ZVIInjection-ready quick-release substrate combining glycerol with 125 µm sulfidated micro-scale zero-valent iron (ZVI) for combined biotic and abiotic dechlorination. Available with 5%, 10%, or 15% ZVI.
- SRS®-EZVIEmulsified zero-valent ironZVI solutions, EZVIInjection-ready substrate combining zero-valent iron (ZVI), U.S.-grown soybean oil, and surfactants into stable micelles; the outer oil layer draws chlorinated compounds to the reactive ZVI core. For DNAPL and high concentrations. Available at 10%, 15%, or 17% ZVI (4 µm).
- TSI-SPS™Sodium persulfateChemical oxidationSodium persulfate oxidant for in situ chemical oxidation (ISCO), injected into groundwater to rapidly generate oxidative (sulfate and hydroxyl) radicals that degrade a broad range of organic contaminants.
- TSI-FSA™Persulfate activatorChemical oxidationFerrous sulfide-based persulfate activator for in situ chemical oxidation (ISCO). Activates sodium persulfate while improving crew safety, minimizing damage to injection tooling, and reducing project cost.
- E-Mulse 3Biodegradable surfactantSurfactant solutionsPatented, injection-ready surfactant solution (EthicalChem; distributed exclusively by Terra Systems) incorporating a plant-based citrus solvent for surfactant-enhanced treatment of heavier hydrocarbons including MGP tar, wastes, and creosote.
- E-Mulse 10Biodegradable surfactantSurfactant solutionsPatented, injection-ready surfactant solution (EthicalChem; distributed exclusively by Terra Systems) formulated for enhanced solubilization and mobilization of chlorinated solvents and petroleum fuels such as diesel, hydraulic fluid, and gasoline.
- Sodium AscorbateBuffer / reducing agentBuffers & additivesSodium ascorbate (Vitamin C salt) additive used as a reducing agent/antioxidant amendment; supplied in 55-lb boxes (repackaging available by special order).
- Sodium BicarbonatepH bufferBuffers & additivesSodium bicarbonate (NaHCO₃) pH-buffering compound used to maintain near-neutral conditions for microbial activity; packaged in 50-lb bags.
- Calcium CarbonatepH bufferBuffers & additivesCalcium carbonate (CaCO₃) pH-buffering compound used to neutralize acidity and sustain microbial activity; packaged in 50-lb bags.
- NutriMaxNutrient additiveBuffers & additivesProprietary nutrient blend formulated to enhance microbial activity in both aerobic and anaerobic remediation.
- Epsom SaltMagnesium sulfate heptahydrateBuffers & additivesEpsom salt (magnesium sulfate heptahydrate, MgSO₄·7H₂O) nutrient additive supplying magnesium and sulfate to support microbial growth.
- DAPDiammonium phosphateBuffers & additivesDiammonium phosphate ((NH₄)₂HPO₄) nutrient additive supplying nitrogen and phosphorus to support microbial growth.
- Ferrous GluconateIron additiveBuffers & additivesFerrous gluconate soluble-iron nutrient additive providing bioavailable iron to support microbial activity.
- Yeast ExtractNutrient additiveBuffers & additivesDry yeast extract nutrient additive supplying organic nitrogen, vitamins, and growth factors to stimulate microbial activity.
- Guar GumViscosifierBuffers & additivesGuar gum powder used as a viscosifier to keep zero-valent iron (ZVI) particles in suspension during mixing and injection.
- Xanthan GumViscosifierBuffers & additivesXanthan gum powder used as a viscosifier to help keep amendments such as zero-valent iron in suspension during mixing and injection.
- ZVI Dry Powder4, 44 and 125 µmBuffers & additivesZero-valent iron (ZVI) dry iron powder for abiotic dechlorination and reactive applications. Available in 4, 44, and 125 µm particle sizes.
Not sure which mechanism fits the site? Our treatability lab runs bench-scale tests on your own soil and groundwater before you commit to a full-scale design.
03 Manufacturing
Every batch is blended in our own plant.
Terra Systems owns and operates its manufacturing facility in Claymont, Delaware, with an in-house quality control laboratory on the production floor. A microscope with droplet-size calculation software measures the mean droplet size of every batch of emulsified vegetable oil substrate before it ships, and a QA/QC sheet travels with each shipment.
That in-house control is why droplet size, oil content, nutrient package and ZVI loading are things we can change for your site, rather than things you have to design around.
04 Technical resources
The evidence, in one searchable place.
Case studies, technical papers and design manuals share a single tag vocabulary with the product catalog, so every product page pulls its own supporting literature automatically.
- 5
Case studies
Field results by contaminant, geology and delivery method, with the design basis that produced them.
- 12
Technical papers
Conference proceedings and peer-reviewed work from the Terra Systems technical staff and project partners.
- 3
Design manuals
Dosing, distribution and monitoring guidance for each substrate family, written for the designer of record.
- 8
Presentations
Webinars, conference presentations and recorded talks from the Terra Systems technical team.
Featured resources
- Introduction to Harmful Algal Blooms & An In-Situ Treatment StrategyPresentation · Enviro Class webinar, December 2023 · 2023 · PDF
- Permeable Reactive Barriers for Removal of Nitrate from Groundwater Through Injection of Emulsified Vegetable Oil: Engineering Design ManualDesign manual · Woods Hole Oceanographic Institution / ISOTEC / Terra Systems, Inc., prepared for the Southeast New England Program (SNEP) · 2023 · PDF
- EVO Carbon Footprint, Distribution, and Longevity: Summary of SRS® Case HistoriesTechnical paper · Battelle Second International Symposium on Bioremediation and Sustainable Environmental Technologies (Paper E-21) · 2013 · PDF
05 Contact
Tell us what you are treating.
One form, routed behind the scenes to the right chemist or the right sales engineer. You do not have to work out who that is first.