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Apex Engineering has designed, installed and optimized biological nitrate removal systems throughout the western U.S. and in South America--at locations in Montana, Idaho, Washington, Nevada, South Dakota, California, Alaska and Peru. These systems have treated mine water, groundwater and industrial wastewaters. Click on each project title or picture to see more information on that project, and click on the company name to go to that website.
Location: Lincoln, California
Location: Republic, Washington
Location: Cajamarca, Peru
Here are several papers on nitrate removal:
Location: Shepherd, Montana