A New Mexico dairy is attempting to use an anaerobic digester to treat wastewater from the milking parlor. They’ll also use a constructed wetlands for the final cleaning step before the water from the 400-cow dairy is reused  — either for irrigation or reinjection to the aquifer.

The Raymond L. Jarrett family is working with an engineering firm to design the unique system. The goal is to get water nitrogen levels below 10 parts per million.

The Natural Resources Conservation Service awarded the project a grant of $64,686.

Santa Fe New Mexican