Skim serum is an industrial effluent from rubber factories. It is of higher BOD and contains about 1% protein and 0.05-0.3% ammoniacal nitrogen, etc.

胶清废水系天然橡胶初加工时的一种工业废水，具有较高的生化需氧量(BOD)，其中约含有1%蛋白质，0.05 ~ 0.3%氨态氮等。

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The traditional method to deal with the coke plant wastewater is a means using by the active dreggy mud, which has less effect on the hard-degraded substance and ammoniacal nitrogen.

由于含有大量的难生物降解及有毒物质，因而成为公认难处理工业废水之一。

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The traditional method to deal with the coke plant wastewater is a means using by the active dreggy mud, which has less effect on the hard-degraded substance and ammoniacal nitrogen.

由于含有大量的难生物降解及有毒物质，因而成为公认难处理工业废水之一。

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