The first major stage in wastewater treatment that removes solids and organic matter mostly by the process of sedimentation or flotation. Examples of primary treatment technologies include septic tanks, biogas settlers, etc. See also pre-treatment.
The first major stage in wastewater treatment that removes solids and organic matter mostly by the process of sedimentation or flotation. Examples of primary treatment technologies include septic tanks, biogas settlers, etc. See also pre-treatment.
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