The CLEARAS Solution

Our Advanced Biological Nutrient Recovery (ABNR) system is a zero-waste solution that maximizes the recovery of excess nutrients, increases dissolved oxygen, and produces no chemical by-products, eliminating costly disposal fees.

Modeled after traditional activated sludge processes, our patented system (U.S. Patent #8101080) harnesses microbiology in a photobioreactor environment that accelerates photosynthesis, the consumption of carbon dioxide and excess nutrients. Advanced ultra filtration is then used to filter out high quality water from return activated algae, which returns to the beginning of the ABNR process.

Why the CLEARAS Solution

The ABNR Solution is a simple, chemical-free solution to cost-effectively meet regulation for nutrient discharge requirements while achieving best-in-class water quality with phosphorus and nitrogen recovery to near non-detect levels, while reducing other harmful contaminants in wastewater.

With a modular and flexible design, our system scales to any available footprint and integrates seamlessly into your existing wastewater treatment infrastructure to prevent system downtime and flow disruption, while maintaining the flexibility to meet a variety of effluent discharge requirements.

With a competitive total cost of ownership, industry experts have endorsed the CLEARAS ABNR Solution as a leading technology in the next generation of advanced wastewater treatment.

  • We have been hosting a demonstration of the Clearas ABNR technology at our wastewater treatment plant this past summer. We take pride in the performance delivered by our existing process and team, and have been pleasantly surprised with the exceptional performance of the ABNR technology.

    Alice Godsey, Director of Public Utilities, Perrysburg, OH
  • Water remediation using algae is an exciting technology that couples a critical need with a natural process. Clearas Water Recovery has taken an innovative approach to this need and developed a robust technology that is able to remove harmful phosphates and other chemical contaminants from wastewater and from impaired water sources.

    David Bayless, Ph.D., P.E., Director, Center for Algal Engineering, State of Ohio Third Frontier Facility
  • Clearas continues to develop technologies to improve their water remediation technologies, including improving inorganic carbon transfer to aid in phosphate management and algal growth. Their strategic approach to technology development is unique among others involved in the use of algae and will enhance their ability to deliver optimal results for their customers.

    David Bayless, Ph.D., P.E., Director, Center for Algal Engineering, State of Ohio Third Frontier Facility
  • The challenges facing the overall water quality of the Great Lakes requires that a comprehensive solution be developed which recognizes best management practices as well as adoption of technological solutions. The Clearas ABNR technology has demonstrated the type of innovative solution that is going to be required. Nothing else out there has shown the ability to achieve as cost effective a solution.

    Jim Ridgway, Member, USEPA Great Lakes Advisory Board & Vice President, Environmental Consulting & Technology, Inc.
  • Every batch that we have run through this plant, the final product has come back with zero detect for any nutrients...with this process, we are not only achieving no detect on phosphorus, it’s taking care of nitrogens, the BODs, the suspended solids, and the trace elements like copper.

    John Bond , Roberts Public Works Director
  • The 45MGD Upper Blackstone Water Pollution Abatement District has been hosting an extended duration evaluation of the Clearas Water Recovery Advanced Biological Nutrient Recovery (ABNR™) technology at its facility in Millbury, MA since the summer of 2014. The results obtained on total phosphorus have consistently been well below our permitted requirement of 0.1mg/L-often achieving non-detectable levels of performance. The Clearas team is committed to making the ABNR technology a viable, cost-effective and sustainable treatment process.

    Mark Johnson, Deputy Director, Upper Blackstone Water Pollution Abatement District
  • We are confident that the Clearas Technology will alleviate water stress in our region – improving the quality of life that has been essential to our environment – and, more importantly, giving us hope for a sustainable future.

    Sid Davidson, Director, The Lyndon Paul Lorusso Charitable Foundation, Cape Cod, MA

News / Resources

  • Lake Erie's 2015 Algal Bloom Effects Revealed

    On Thursday, charter captains, travel personnel, water treatment engineers and business owners gathered at the Lake Erie Shores and Islands center in Portage Township to speak to the press about this year's algal bloom and its devastating effects on their industries.
  • Pulp & Paper: A Look at Wastewater Treatment Trends & Technologies

    There are many industrial processes in use across the nation and around the world that discharge large amounts of wastewater effluent into local waterways and ground soil. Generated from a variety of manufacturing processes, these discharges often serve as a primary source of pollution for aquatic life, public health and the environment.
  • Wastewater Industry Moving Toward Enhanced Nutrient Removal Standards

    Certain receiving waters are showing evidence that BNR limits are not strict enough to protect water quality and, as a result, these levels are still causing unbalanced ecosystems.