PHOSPHORUS REMOVAL AND ITS INFLUENCE ON METAL SPECIATION DURING WASTE-WATER TREATMENT

WATER RESEARCH

卷:27

Article

YEOMAN, S ; LESTER, JN ; PERRY, R

关键词: PHOSPHORUS PRECIPITANTS;    HEAVY METALS;    SEWAGE SLUDGE;   

DOI  :  10.1016/0043-1354(93)90038-J

来源: Elsevier

【 摘 要 】

The effect of chemical phosphate precipitants on heavy metal distribution in sewage sludges was investigated. The proportion of solids contained within each particle size range was affected by treatment. For the heavy metals, chemical precipitation appeared to shift the distribution throughout various chemical fractions in the sludges. More importantly aluminium sulphate increased the solubility of Cu and Pb in raw and digested sludge, while both precipitants appeared to generally reduce the solubility of the other metals in all of the sludges.

【 授权许可】

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