The laundry department for a large repair facility faced the expensive problem of having its wastewater treated as hazardous waste due to the high content of petroleum and other hydrocarbons present in the water. The greases and oils came in on rags, uniforms, and other materials that the laundry department was required to process. The water from the wash cycles was recirculated until the concentration of greases and oils become high enough, at which point the water was stored in 55 gallon drums and ultimately disposed of as hazardous waste. Seeking a more cost-eective solution, the department examined means of naturally removing the petroleum from the water. Ultimately deciding to use enzymes, management ran several tests on Great Lakes Bio Systems enzymes vs. the competition, and provid

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