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ICSE Class 9 Answered

What is scum? How is it removed during effluent treatment?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

During primary treatment of effluents, oil, grease, soaps, plastics and other lighter solids float over the surface. The light floatable waste that rises to the top is called scum. The scum is removed with a skimmer.

Answered by | 04 Jun, 2014, 03:23: PM

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