The wastewater treatment new construction project of Yancheng Shengda Chemical Co., Ltd., which was contracted by our company, was successfully completed. Shengda Chemical mainly produces brominated alkanes, acids, esters, alcohols, acids and esters. The wastewater has a high COD concentration and is biologically toxic. The project separates high-concentration wastewater and low-concentration wastewater separately. The high-concentration wastewater is pretreated and mixed with low-concentration wastewater to enter biochemical treatment. The project has been completed and the commissioning is good and the operation is stable.

Design water quantity: 150t/d; design influent water quality: high-concentration wastewater 80000-100000mg/l, low-concentration wastewater 5000-8000mg/l; effluent water quality is better than the three-level discharge standard of "Sewage Integrated Emission Standard" (GB8978-1996) .