In Situ Bioremediation Solutions
Bioremediation Products Designed for Real Site Conditions
Products from renewable, crop-based ingredients
RNAS provides products for the safe and effective treatment of soil and groundwater. Most of our products are made from renewable (USDA Certified Biobased), crop-based ingredients that enhance biological processes and support cost-effective, sustainable remediation.

Product Categories
RNAS offers a range of products designed for different site conditions, contaminants, and treatment approaches.
Electron Donors
Provide the energy required for anaerobic biodegradation.
Products:
Newman Zone EVO, HRO, QR75, QR90
pH Control
Maintains neutral pH during biological treatment.
Product:
Neutral Zone
Oxygen Removal
Removes dissolved oxygen to create reducing conditions.
Product:
Newman Zone OS
Bioaugmentation
Adds microorganisms for effective biodegradation.
Product:
SDC-9, SDC-9+, TCA-20-B
Product Comparison
Compare products by application, performance, and applicable contaminants.
| Product | Best Use | Performance | Applicable Contaminants |
|---|---|---|---|
| Newman Zone EVO | General-purpose donor | Balanced short- and long-term electron donor | Chlorinated solvents, nitrated explosives, perchlorate, nitrate, metals |
| Newman Zone HRO | Coarse soils, fractured bedrock | Long-term donor with enhanced retention in high-permeability media | Chlorinated solvents, nitrated explosives, perchlorate, nitrate, metals |
| Neutral Zone | Low pH conditions | Sustained pH buffering with retained solids | Supports all biological treatment |
| Newman Zone OS | Injection water preparation | Rapid oxygen removal to establish reducing conditions | Supports all biological treatment |
| QR75 | Cost-effective startup | Rapid hydrogen release for anaerobic conditions | Chlorinated solvents, nitrated explosives, perchlorate, nitrate, metals |
| QR90 | High-demand sites | Faster, higher hydrogen output | Chlorinated solvents, nitrated explosives, perchlorate, nitrate, metals |
| SDC-9 | Complete dechlorination | Establishes active dechlorinating culture | Chlorinated solvents |
| TCA-20-B | Bioaugmentation, Chloroethanes | The only bioaugmentation culture that reduces chloroethanes to ethane | Chloroethane compounds; 1,1,1TCA, Chloroethene and 1,1 DCA |
| SDC-9+ | Bioagumentation, Chloroethenes, and Chloroethanes | Complete reduction of chloroethenes to ethene; complete reduction of Chloroethanes to ethane | Chloroethenes compounds; PCE, TCE, DCE, and VC; Chloroethane compounds; 1,1,1TCA, Chloroethene and 1,1 DCA |
Sustainable Remediation
How to Select the Right Product
Selecting the Right Approach
Different site conditions require different treatment strategies. Products may be used individually or in combination depending on site chemistry, contaminant type, and remediation goals.
- Need sustained, long-term treatment? → Newman Zone EVO or HRO
- Need to maintain neutral pH? → Neutral Zone
- Need to remove free chlorine or dissolved oxygen? → Newman Zone OS
- Need to rapidly establish anaerobic conditions? → QR75 or QR90
- Need complete dechlorination? → SDC-9, TCA-20B and SDC-9+

USDA Certified Biobased
Many RNAS products are certified under the USDA BioPreferred® Program, verifying the use of renewable, crop-derived materials through independent testing.
Expert Guidance for Your Project
Unsure which electron donor product best suits your remediation needs? Our team at RNAS Inc. is ready to assist you. We offer personalized technical guidance to help you select the right solution based on your specific site conditions and project goals. Reach out to us today to ensure your remediation strategy is both effective and sustainable.
