Remediation Products
Terra Systems delivers a complete portfolio of anaerobic, abiotic, and aerobic bioremediation products Backed by more than 20 years of R&D and world-class in-house manufacturing, our patented SRS® and QRS® substrates, bioaugmentation cultures, and ZVI and oxygen-delivery technologies help environmental professionals remediate complex sites safely, effectively, and cost-efficiently.
Our Product Families
SRS® Family →
Patented emulsified vegetable oil substrates.
QRS® Family →
Quick-release lactate substrates for rapid reducing conditions.
High-density microbial cultures to accelerate complete dechlorination.
EVO/ZVI formulations for combined biotic + abiotic treatment.
Oxygen-delivery technologies including CPO and Microbubbler™.
Chemical Oxidation Solutions →
Lab testing to determine optimal product and dose.
Make contaminants accessible for treatment and removal.
Optimize conditions for more effective remediation.
Lab testing to determine optimal product and dose.
Each product line can be used as a standalone solution or integrated into a treatment train tailored to site conditions.
Anaerobic Remediation
SRS® Family
Emulsified Vegetable Oil Substrates
Purpose:
Drives reducing conditions and provides carbon/hydrogen for complete dechlorination of PCE and TCE.
Why SRS®:
+ Tailored formulations produced via just-in-time manufacturing
+ EVO content from 45%–90%
+ Custom droplet sizes for optimal radius of influence or retention
+ Optional nutrients & quick-release substrates
Ideal Use Cases:
Chlorinated solvent plumes, sites requiring extended electron donor availability, DNAPL source zones
QRS® Family
Quick-Release Lactate Substrates
Purpose:
Rapidly generates reducing conditions to support native or
introduced microorganisms.
Why QRS®:
+ Rapidly generates reducing conditions for immediate biodegradation (top pick)
+ Provides fast-acting carbon to accelerate remediation timelines
+ Delivers immediate substrate availability for microbial activity
+ Supports quick startup of anaerobic treatment processes
+ Ideal for sites requiring rapid response and short-term impact
Benefits:
• Injection ready
• Supports faster dechlorination kinetics
• Nutrient-enhanced options boost microbial performance
Bioaugmentation Cultures
TSI-DC® Family
High-Density Cultures
Bioaugmentation accelerates treatment when key microorganisms are absent or present at low levels.
Available Cultures:
+ TSI-DC® Dehalococcoides mccartyi Bioaugmentation Culture
+ TSI-TCA® Dehalobacter Bioaugmentation Culture
+ TSI-DC®/TSI-TCA® Bioaugmentation Culture Blend
+ TSI-MDB1® Dehalobacter MDB-1 Bioaugmentation Culture
+ TSI-RR® Rhodococcus ruber Bioaugmentation Culture
When to Use:
Stalled sites, low microbial counts, accelerated cleanup timelines, regulatory pressure for faster closure
ZVI Solutions
SRS®-ZVI and SRS®-EZVI
Purpose:
Combined biotic and abiotic reductive dechlorination—especially effective for DNAPL sites.
Product Options:
+ SRS®-ZVI — shear-thinning emulsion with ZVI, EVO, lactate & nutrients
+ SRS®-EZVI — micelle-based EVO/ZVI particle with hydrophobic exterior; ideal for DNAPLs
+ QRS™-GLY-ZVI — quick-release glycerin with ZVI for rapid biotic and abiotic degradation
Advantages:
• Broadest EVO/ZVI product line in the industry
• Custom ZVI loading and particle size
• Licensed under key U.S. patents for ZVI + carbon substrate technologies
Use Cases:
• PCE/TCE DNAPL zones, high-concentration source areas, complex subsurface conditions.
Aerobic Bioremediation
TSI-CPO Calcium Peroxide
A slow-release oxygen source for aerobic biodegradation of hydrocarbons.
Key Features:
+ Effective for BTEX, PAHs, TPH, MTBE, TBA
+ 16.6% active oxygen release for up to 12 months
+ Ideal for low–moderate contamination
+ Supports long-term aerobic microbial activity
Microbubbler™ Oxygen System
Continuous oxygen delivery using ambient air and a proprietary sparger.
Key Features:
+ Produces up to 24 lbs of oxygen/day
+ Low maintenance and safe, low-pressure operation
+ No hazardous oxygen cylinders
+ Simple 120V plug-in installation
+ Reliable, low-cost oxygen delivery
Ideal Applications:
Hydrocarbon plumes, sites requiring controlled oxygen addition, long-term aerobic enhancement.
Chemical Oxidation Solutions
Rapid contaminant destruction for high-concentration sites.
Key Features:
+ Rapid destruction of contaminants in source areas and hot spots
+ Effective across a wide range of organic compounds
+ Supports both oxidative and reductive treatment pathways
+ Extended reactivity in groundwater for sustained performance
+ Compatible with treatment-train approaches alongside bioremediation
Surfactant Solutions
Selecting the right surfactant is critical to maximizing remediation effectiveness.
Key Features:
+ Tailors surfactant choice to site-specific conditions
+ Improves contaminant desorption and availability
+ Enhances performance of ISCO, bioremediation, and extraction
+ Increases treatment efficiency and cost effectiveness
+ Supported by lab screening with rapid turnaround
Buffers, Additives, and Dry Products
Optimizing site chemistry for improved
treatment performance.
Key Features:
+ Stabilizes pH and subsurface geochemical conditions
+ Enhances performance of chemical oxidation and bioremediation
+ Improves reaction efficiency and treatment consistency
+ Supports microbial activity and contaminant degradation
+ Flexible application across a wide range of site conditions
Support and Services
Product Selection Support
Treatability Lab
Custom Formulation
Field Injection Guidance
Dosing Calculations
Regulatory Documentation