DC Water’s Brown-to-Green Initiative

Dean Alexander

DC Water has another green initiative up its sleeve. The department has created a thermal hydrolysis process to recover biosolids from our city’s nutrient-rich wastewater and turn it into a product they call Bloom. Bloom is being provided to local partners to test by blending it with soil for use in gardening and landscaping. Not only is that green in and of itself, but DC Water is the first in the nation to take the main ingredient — i.e., the fecal matter in sewage — and harness it to produce a third of the electricity used by the wastewater treatment plant, which happens to be the city’s largest consumer of electricity. Made from the sterile byproduct of that process, Bloom is weed-free, drought-resistant and produced by you.

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