Investment in more than 500 million yuan Qilu Petrochemical chlor-alkali plant PVC centrifuge mother liquor recycling device, since the operation has been operating for more than a month since normal, currently more than 1200 tons per day of wastewater treatment through the device into the ethylene fire water system.
The PVC centrifuge mother liquor recycling device is an auxiliary project of 720,000 tons of ethylene equipment. Its initial design was to use the slurry mother liquid produced from the PVC device in the circulating water system, and after many demonstrations, after flocculation, precipitation, adsorption, oxidation and other processes, it turned to a more appropriate fire-fighting water system. Since the device was put into operation, the PVC plant of the chlor-alkali plant has formulated strict operating procedures, regular analysis, and careful control to ensure that the chlorine ion content, COD content, etc. of the sewage entering the fire-fighting water system all meet the standard, while reducing the consumption of fresh industrial water. Sewage discharge has achieved significant economic and social benefits.
The PVC centrifuge mother liquor recycling device is an auxiliary project of 720,000 tons of ethylene equipment. Its initial design was to use the slurry mother liquid produced from the PVC device in the circulating water system, and after many demonstrations, after flocculation, precipitation, adsorption, oxidation and other processes, it turned to a more appropriate fire-fighting water system. Since the device was put into operation, the PVC plant of the chlor-alkali plant has formulated strict operating procedures, regular analysis, and careful control to ensure that the chlorine ion content, COD content, etc. of the sewage entering the fire-fighting water system all meet the standard, while reducing the consumption of fresh industrial water. Sewage discharge has achieved significant economic and social benefits.