• Top - Rotifer / Bottom - Stalked Ciliate Colony  Michigan's Biosolids Program

    The DEQ encourages the use of Biosolids (also known as sewage sludge) to enhance agricultural and silvicultural production in Michigan. Almost all Biosolids that are land applied in Michigan are used to grow crops on sites at agronomic application rates approved by the DEQ. Biosolids are also used to provide nutrients and soil conditioning in mine reclamation programs, tree farms, and forest lands.

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