ERD Electron Donors

Long-lasting Electron Donor

EDS-ER™ (electron donor solution – extended release)

EDS-ER™ (Electron Donor Solution, Extended Release) is a long-lasting source of carbon and hydrogen required for enhanced reductive dichlorination and other bioremediation processes. 100% of the EDS‑ER™ you buy will serve as a fermentable substrate to create the right aquifer conditions for anaerobic remediation. When mixed with water, EDS-ER™ spontaneously becomes an emulsified vegetable oil (EVO). That said, most EVO products in the market are shipped as concentrated emulsions containing water. EDS-ER™ is shipped without water, typically reducing shipping costs by 50%.

At room temperature, EDS-ER™ is a liquid material with an appearance, viscosity and freezing point similar to vegetable oil. Unlike common EVO products that freeze at ~0°C and require preservatives, EDS‑ER™ is preservative free and has a shelf life of over two years without spoilage. 

Features and Benefits

• Spontaneously forms a high-quality, low-droplet size oil-in-water emulsion that easily and uniformly disperses in the aquifer
• Easily mixes with water, simplifying field operations
• The product can be injected into existing wells or via direct push
• A slowly fermenting product than can provide electrons for up to five years
• Contains refined, bleached, and deodorized (RBD) food-grade soybean oil
• Preservative free
• Long shelf life
• Lower transportation costs when compared to other EVO products
• Up to 50% less packaging material required
• Lower carbon footprint
• USDA Certified Biobased Product

Fast-acting Electron Donor

Nutrimens^®

Nutrimens^® provides reduced carbon and a wide array of beneficial vitamins, minerals, and metabolites to microbes for enhanced bioremediation of contaminated sites.  It can be utilized in groundwater remediation efforts using the liquid or granular formulation or in bioreactors and constructed wetland treatment systems to improve remediation of effluents and surface waters for various metals. 

Our Nutrimens^® product is a better choice than yeast extract. Besides its role in increasing the rates of bioremediation, addition of Nutrimens^® increases the efficiency of electron donor utilization. Nutrimens® provides a source of sugars, proteins, vitamins and amino acids contained in yeast cells and extracellular metaboliteswhich will decrease the remediation time.  In addition, Nutrimens® has also been demonstrated to aid in maintaining circumneutral pH.

EDS-QR™ (Electron Donor Solution – Quick Release)

EDS-QR™ is a fast-acting, completely soluble amendment engineered for enhanced reductive dechlorination of chlorinated solvents or any other anaerobically degradable substance.  Our EDS-QR™ product is USP Kosher Grade 99.7% purity USA sourced from an ISO Certified Plant.  A key benefit is that EDS-QR™ provides more electron equivalence per pound than sodium lactate, so you buy and ship less product.  With 99.7% organic carbon, 60 lbs. of EDS-QR™ provides the same amount of carbon as 100 lbs. sodium lactate.  EDS-QR™ is an ideal choice for projects that are on a fast track.  One injection will typically enhance biological activity for 2 to 3 months.

EDS-ME™