Soluble quick-release electron donor
Newman Zone QR90
High Hydrogen Production, Low Cost
Newman Zone QR90 is a blend of soluble electron donors, nutrients, and vitamins designed to rapidly establish anaerobic conditions for in situ bioremediation. With 90% fermentable material, it produces almost three times more molecular hydrogen than 60% sodium lactate.
Rapid fermentation provides hydrogen to quickly reduce competing electron acceptors such as dissolved oxygen, nitrate, and sulfate, creating conditions favorable for anaerobic biodegradation of chlorinated solvents, nitrated explosives, perchlorate, nitrate, and selected metals.
Why Newman Zone QR90
Newman Zone QR90 is an easy to use low-cost, fast-release electron donor. As a low-viscosity, water soluble electron donor, it is easy to inject or distribute using circulation systems.
With almost 3x more hydrogen production than 60% sodium lactate QR90 delivers more usable electron donor per pound at a lower cost. For projects requiring both rapid startup and long-term treatment, Newman Zone QR90 can be combined with slow-release donors such as Newman Zone 55 or Newman Zone HRO.
Cost-Effective Hydrogen Production
Costs less than 60% sodium lactate and delivers almost 3x the molecular hydrogen per pound.
Rapid Microbial Growth
Provides fast-release electron donors, nitrogen, phosphorus, and Vitamin B12 to support rapid microbial growth.
No Sodium Salts
60% Sodium Lactate contains almost 12% sodium - Newman Zone QR90 has less than 0.05%. Use QR90 to protect aquifers from excess salinity.
Performs in Cold Conditions
Easy to use in cold weather, with low viscosity (63 centipoise at 0 ºC). It won’t freeze – still a liquid even at -75ºC!
Technical Details
How it Works
1. Easy Use
A water soluble electron donor that is easy to dilute and inject. Ideal for use in recirculation systems.
2. Ferments to Produce Hydrogen
Rapid fermentation generates molecular hydrogen and volatile fatty acids, reducing competing electron acceptors such as DO, nitrate, and sulfate.
3. Stimulates Anaerobic Biodegradation
Electron donors, nitrogen, phosphorus and vitamin B12 support reductive dechlorination and other anaerobic biodegradation processes.
Application & Handling
- Can be injected directly into wells to reduce biofouling – then diluted with “chase water”
- Can be applied using direct push, injection wells, infiltration trenches, or recirculation systems
- Diluted with water to reduce ethanol concentrations 5% or less in situ to minimize ethanol toxicity
Performance Characteristics
- Rapid fermentation produces hydrogen and VFAs quickly
- Sustains higher VFA concentrations compared to sodium lactate in microcosm testing
- Effective for quickly reducing electron acceptors and initiating treatment
Packaging & Storage
Available in:
- Drums (450 lb net)
Totes (2,200 lb net)
Storage:
- Stable for years at ambient temperatures
- Remains pumpable in sub-zero conditions
- Will not freeze above -75°C
- Hazardous flammable liquid must be stored accordingly
Safety
- Flammable liquid at room temperature
- May cause irritation with prolonged contact
- Use appropriate PPE during handling
- Contains denatured ethanol (SDA-3C)
QR75 / QR90 Comparison
| Feature | QR75 | QR90 |
|---|---|---|
| Fermentable Material | 75% or more | 90% or more |
| Hydrogen Production | ~2X 60% sodium lactate | ~3X 60% sodium lactate |
| Performance Profile | Cost-efficient fast-release electron donor | Cost-efficient fast-release electron donor |
| Cold Weather Injections | Liquid at-30°C | Liquid at -75°C |
| Storage & Transportation | Not hazardous | Hazardous flammable liquid |
Need to quickly establish anaerobic conditions?
Get guidance on dosing, injection strategy, and combining QR90 with long-term electron donors.