OLYMPIA, Wash. (AP) — Washington’s besieged dairies are testing several promising systems for recycling cow manure, turning it into fertilizer and clean water.

To do that, engineers are using processes that range from oversize bins of worms to cutting-edge technologies to reduce and reuse the nitrogen and phosphorous found in manure.

The stakes are huge. In recent years, the state’s $1.1 billion dairy industry has been the target of an onslaught of government regulations and private lawsuits, most of which targeted surface and groundwater pollution linked to manure.

Read more about how conservation districts are addressing nutrient management issues by following the link below.

Source: KOMONEWS/ Capital Press | Trials show hope for handling manure at Washington dairies