Full Nitrogen Removal Through Microvo Technology
Oro Loma Sanitary District in San Lorenzo, California, partnered with green technology company, Microvi Biotech, Inc. and wastewater specialists, WesTech Engineering, Inc. to showcase a large-scale demonstration of the Microvi MNE solution for Oro Loma’s wastewater treatment plant.
This technology uses novel bio catalytic composites (biocatalysts) that intensify biological processes, while maintaining a controlled population of targeted microorganisms at a much higher density than existing technologies.
The demonstration’s primary objective was to tackle increased nitrogen discharge limits in the San Francisco Bay Area. The district is using the demonstration to proactively evaluate cost-effective new technologies to meet these projected effluent limits, possibly as low as <6 mg/L of total nitrogen (TN).The demonstration show that the combined nitrification-denitrification process can achieve effluent levels consistently below 3 mg/L and even as low as 1 mg/L from influent ammonia (NH3) concentrations as high as 45 mg/L, with an unprecedented retention time of under two hours. The next phase of the Oro Loma demonstration will focus on side-stream treatment of ammonia concentrations as high as 500 mg/L.