Design principle:

The pretreatment-biochemical-physicochemical three-stage treatment process is adopted, and all the inspection indexes can meet the emission standards after treatment;

adopt low-energy treatment process to reduce operating costs;

adopt the combination of structures to reduce the occupied area.

measures such as liquid level automatic control and automatic adjustment of wastewater PH value are adopted to facilitate operation and management.

wastewater treatment process:

Three-stage treatment process of pretreatment-biochemistry-materialization is adopted

Design basis:

The construction unit provides wastewater quantity and water quality data;

environmental protection department's instructions and requirements for pollution control;

code for design of outdoor drainage (GBJ14-87)

first-class standard of integrated wastewater discharge standard (GB8978-1996);

The relevant design parameters and technical requirements of Environmental Engineering Manual "Water Pollution Prevention and Control Volume"

are for reference only.