Rare earth smelting separation wastewater resourceful treatment process

• Main Authors: YI QIHUI, HUANG JINGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a rare earth smelting separation wastewater resourceful treatment process, which relates to the technical field of rare earth smelting, and comprises the following seven steps: rare earth wastewater is introduced into a desulfurization and denitrification auxiliary tower for flue gas treatment of a coal-fired boiler, participates in a desulfurization and ammonia removal reaction in the desulfurization and denitrification auxiliary tower, reduces ammonia and nitrogen in the wastewater, then passes through a biological aerated filter, and finally passes through a secondary desulfurization and denitrification tower for flue gas treatment of a coal-fired boiler. Organic matters in the wastewater are adsorbed and biodegraded, ammonia nitrogen in the wastewater is removed by adopting a breakpoint chlorine feeding reaction, microorganisms are left through filtration of a filter membrane, the cost increase caused by microbial loss is avoided, and meanwhile, other pollution cannot be generated