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Lower Cost Nitrate Removal with biottta®

Lower Cost Nitrate Removal with biottta®

Full-scale biottta® systems use steel pressure vessels

Full-scale biottta® systems use steel pressure vessels that can be sized to meet any capacity.

What is biottta®?

biottta® stands for biologically-tailored, two-stage treatment approach and is the latest Carollo-developed technology to help municipalities and public agencies cost-effectively treat contaminated groundwater sources to improve local and regional water supplies.

Carollo’s biottta® process uses naturally-occurring bacteria to treat a wide range of groundwater contaminants while eliminating traditional, environmentally harmful waste streams, increasing water recovery rates, and reducing treatment costs.

Five Benefits of biottta®

  1. It’s Cost-Effective. biottta® exerts low O&M and life-cycle costs due to the low energy demand, high water recoveries, and lack of brine waste.
  2. It’s Green. biottta® is a low-energy system that eliminates nitrate from the environment rather than concentrating it, which eliminates high-strength brine streams and the addition of salt to a given watershed. It can also achieve water recovery rates greater than 96 percent.
  3. It’s Robust. Hydraulic and water treatment performance is independent of raw water quality and treatment goals and is insensitive to wide swings in operating conditions.
  4. It’s Flexible. biottta® can remove multiple contaminants in a single reactor and across a two-stage process. Nitrate, perchlorate, hexavalent chromium, selenate, arsenic, uranium, and many volatile organic compounds (VOCs) can be removed without multiple add-on unit processes.
  5. It’s Straightforward. biottta® is comparable in design and operation to conventional granular media filtration. In addition, the biottta™ system is highly automated, reducing the need for extensive (and expensive) operator attention.
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The Six Steps of the biottta® System

Roll over the six numbered circles to see what happens in each step.

The biottta® system has a two-stage approach that facilitates the removal of multiple contaminants without generating high-strength, high-volume waste.


For more information, please use our Contact form, and select "biottta® Information Request" in the Category pull-down menu.