Method for treating heavy-metal-containing wastewater membrane filtration concentrated liquid

• Main Authors: SHI GUOFEI, XU XIAOJUN, CHEN XIAOHONG, HUANG CHANGYUAN, HUANG WEIZHONG, YANG JINJIN, GUAN TANGZHEN, WEI JIANCHU, MA LING, ZHENG XIN
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2013
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention proposes a treatment method for a heavy-metal-containing wastewater membrane concentrated liquid, relates to the technical field of environmental protection and particularly relates to the treatment of the heavy-metal-containing wastewater membrane concentrated liquid in metallurgy and mining industries. The treatment method comprises: after collecting the heavy-metal-containing wastewater membrane concentrated liquid, introducing into a membrane distillation system for recycling, and introducing the concentrated liquid to an efficient evaporation system when a certain concentration ratio is reached; and collecting fresh water generated by the membrane distillation system and efficient evaporation system for reuse, and comprehensively utilizing or retreating a produced crystalline solid. The treatment method provided by the invention is convenient for operation and energy-saving, and has the advantages of less environmental pollution, lower treatment cost and wide application prospects, the occu