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Behaviour of heavy metals in domestic sewage sludge amended into soil


Japanese Journal of Soil Science and Plant Nutrition 67(1): 24-31
Behaviour of heavy metals in domestic sewage sludge amended into soil
Experiments were carried out to determine the behaviour of heavy metals in sewage sludge applied to the soil surface. The results showed: (1) domestic sewage sludge contained 0.25-0.30 kg/kg of organic matter as total carbon. The average Cd content was 3.4 mg/kg, and Cu and Zn were > 1000 mg/kg; (2) the solubility of heavy metals in the sewage sludge in acid solution was in the order Zn > Pb > Cd > Cu, and 65% of total Zn was the acid-soluble form.


Accession: 002763601



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