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Methods of treatment in which the application of physical forces are known as operation units. Methods of treatment in which the removal of contaminants which is brought by chemical or biological processes are known as unit processes. At the present time, unit operations and processes are grouped together to provide what is known as primary, secondary and tertiary treatment.
In primary treatment, physical operations such as screebing and sedimentation are used to remove the floating and ...
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MTUGM 30:4 (2008)
Artikel Jurnal Universitas Indonesia Library
