Tapping sewage as a source of useful materials

Read the full story in Chemical & Engineering News.

Sewage treatment plants are chemical factories in waiting. By combining engineering expertise with chemistry and biology, plant operators can convert the solid sludge they generate into an array of useful chemical products. Some wastewater treatment plants already make phosphate and cellulose. But this is no cake walk. There are major hurdles still to jump, and project failure is very much a reality.

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