EBR Technology

In Situ Treatments

Treatability Studies

Microbial Assessment

Does the EBR process operate without any nutrient additions?

No, the EBR process requires intermittent additions of nutrients. A proper nutrient balance (C:N:P:S:etc.) is crucial for cell maintenance and support of a healthy microbial population.

Even though the EBR system uses organic carbon as a nutrient base, it does not rely on it for the electrons needed to carry out reduction reactions and contaminant transformations. Those electrons are supplied to the microbes and the system directly via low voltage and low current (1-3 Volts and milliAmp current).

1 milliAmp supplies 6.2 x 10^15 electrons every second! For comparison, o
ne molecule of glucose can provide up to 24 electrons under complete metabolism. 

What does the typical EBR process development look like?

EBR system development moves through a tiered testing program, from bench-level water chemistry and microbial evaluations to site specific bench- and pilot-scale testing to full-scale design and implementation, to achieve long-term stability and maximum contaminant removal efficiencies and kinetics. This testing sequence is structured to assure clients that water can be treated and that on-site pilot testing will provide the data required for a successful full-scale implementation of the tested technology.

Inotec is a small company. How can you provide design, engineering, procurement, construction, and management services required for a full-scale system implementation?

It's true: we are a small company and our focus is on technology development and process design and improvement. For full-scale implementations, Inotec has collaboration and service agreements in place with large engineering firms (such as Stantec and AMEC) or can partner with a client’s preferred engineering firm to implement an EBR system on time and within budget. We see our job as developing the best process for our client's site and leading the startup and operation efforts. We let the professional engineers worry about detailed engineering, procurement, construction, and management.

Your technology is interesting but before we commit to a tiered testing and process design program, we need to know the ballpark cost estimates of the EBR technology so that we can make preliminary cost comparison analysis with other technologies in the market.

We hear you! Contact us with the basic information about your site (listed below) and we'll provide you with a Class 5 estimate (-50% to +100% accuracy) for your technology screening purposes.
- Water source (e.g., waste coal seepage, heap leaching solution, flotation process water, RO concentrate, FGD waters, etc.)​  
- Flowrate (average and min/max)
- Water temperature (average and min/max)
- Contaminant(s) of interest, concentrations (average and min/max), speciation
- Water chemistry (pH, alkalinity, acidity, TSS, conductivity or TDS, hardness, metals, phosphate, ammonia, chloride, total and WAD cyanide, BOD and COD)