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环境科学 2009
Analysis of the Secondary Effluent of Municipal Wastewater in North China
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Abstract:
The secondary effluent from a municipal sewage treatment plant was fractionated into three parts: the dissolved,the near-colloidal and the suspended. The variation of each composition was investigated individually during winter,spring and summer.The fractionation study revealed that the dissolved COD and DOC accounted for 78.2%-86.5% of total COD and 82.6%-86.6% of TOC,respectively.The molecular weight distribution(MWD) of the secondary effluent indicated that the organics with molecular weight(MW)(<1?000) ...
