The chemical wastewater Treatment plant of Pizhou Economic Development Zone is located in the east side of Taishan Road of Pizhou Economic Development Zone and the north side of the first phase of the Daiwei sewage Treatment Plant of Pizhou City. The construction unit is Pizhou Economic Development Holding Group Co., LTD. The total investment of the project is 61.3 million yuan, covering a total area of 32.16 mu, the total design scale is 5000m3/d, the first phase of the scale is 2500m3/d, and the new industrial sewage network is 5 kilometers. The sewage is collected in Pizhou Economic Development Zone, chemical industry gathering area. The treatment process of "regulation + initial sedimentation + hydrolysis +A/O+ ozone catalytic oxidation + biological aerated filter + activated carbon adsorption" is adopted. The effluent quality is subject to the "Pollutant Discharge Standard for Urban Sewage Treatment Plant" (GB18918-2002) Grade A standard.