Use of clay minerals for sewage sludge stabilization and a preliminary assessment of the treated sludge’s fertilization capacity

Preserving sewage sludge’s N is important for its agronomic use and this could possibly be achieved by treating sludge with certain clay minerals. Nine clay minerals and additionally Ca(OH) 2 were added to dewatered sewage sludge at 0–30 % rates (wet weight basis) (treatments). After 70 days of equi...

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