TAP Tech Deployment: Algae Harvester

Clermont County | East Fork Little Miami River Watershed | Inland Southwestern Ohio

AECOM Technical Services, Inc. (AECOM) submitted their Hydronucleation Flotation Technology (HFT) to the H2Ohio Technology Assessment Program (TAP) and the proposal was identified as one of ten (10) emerging technologies that could play an important role in the reduction of harmful algal blooms (HABs) in Ohio. AECOM’s HFT, also known as an algae harvester, physically removes algae, key nutrients (phosphorus and nitrogen), carbon, and cyanotoxins from the water column. This technology has been successfully tested in multiple field-based studies outside of Ohio (including work with USACE).

The Ohio Water Development Authority (OWDA) awarded ODNR a Research and Development Grant to support the project. The technology was demonstrated at William H. Harsha Lake in East Fork State Park from mid-August through mid-September in 2022. A report will describe the effectiveness and safety of the HFT under site-specific conditions in Ohio and develop treatment needs and associated costs for full-scale implementation of HFT to meet water quality goals in Ohio.

Partners: AECOM Technical Services, U.S. Army Corps of Engineers, Division of Parks and Watercraft, Ohio Water Development Authority