What is the definition of pretreatment of wastewater?
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hyy..
The term "pretreatment" means the treatment of wastewater by commercial and industrial facilities to remove harmful pollutants before being discharged to a sewer system under the control of a publicly owned treatment works .
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The term "pretreatment" means the treatment of wastewater by commercial and industrial facilities to remove harmful pollutants before being discharged to a sewer system under the control of a publicly owned treatment works .
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pretreatment of waste water is known as treatment of water by industrial biological and chemical before drain it into the sewage water plants
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