Wastewater treatment system in factory

• Main Authors: ZHANG CHENG, HU HAO, LI JUN, GUAN PEIJUN, TAO HUIMIN, LI BIN, ZHANG XIANFENG, GENG JUNFENG, BAI YUN, ZHU JINGWAN, NIU JINGZONG, BAI XIAOLIN, SUN TAO, YANG WENLI, ZHAI MO, WANG SHIHONG
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model discloses a wastewater treatment system in a factory. The wastewater treatment system comprises a chemical reaction unit, a filtration and concentration unit and a salt separation unit, the device has the advantages that the hardness of wastewater can be reduced, and suspended matters and COD (Chemical Oxygen Demand) can be reduced through the chemical reaction unit; afterwards, through multi-stage concentration treatment, the treatment load of a subsequent salt separation unit can be reduced, the salt separation energy consumption and the salt separation cost can be reduced, and the water quality can reach the water inlet index of the salt separation unit. The water quality of the recycled primary brine obtained by the salt separation unit meets the primary brine quality index, and the recycled primary brine can be recycled to a primary brine system of a factory; according to the utility model, the generated wastewater does not need to be sent to a wastewater treatment plant for centralized