NAGOYA--Sludge generated through sewage treatment is set to be marketed by city officials here as the perfect fertilizer rich in nitrogen and phosphorus. Nitrogen is an indispensable ingredient ...

Charlotte Water “is closely monitoring” a new federal report on potential health risks of sewage sludge spread on farmland as fertilizer — a practice the utility has used for years.

Harmful chemicals in sewage sludge that is spread on pasture land as fertilizer are causing cancer, the Environmental Protection Agency said Tuesday. The risk is highest for people who regularly ...

She has explored how it is possible to transform municipal sewage sludge and agricultural residues into something useful, namely biochar. The research project has a significant relevance to the ...