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  • 24-06-2020
  • Biology
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what are the principles involved in the the process of sewage filtration?​

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millie1605
millie1605 millie1605
  • 24-06-2020
In particular, the following wastewater treatment processes are caried out: preliminary treatment (physical) to remove large debris and grit, primary treatment (physical) to remove settleable suspended solids, secondary treatment (biological) to remove the remaining particulates and dissolved organic material and chemical.
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