公开(公告)号：US20240190743A1

公开(公告)日：2024-06-13

申请号：US18424751

申请日：2024-01-27

申请人： Shenzhen Academy of Environmental Sciences ,  Hainan University

发明人： Gong Cheng ,  Sai Wang ,  Xiaodan Chen ,  Wei Li ,  Tuantuan Wang ,  Rui Lin ,  Yiwen Luo ,  Yi Chen

IPC分类号： C02F9/00 ,  C02F1/00 ,  C02F1/44 ,  C02F1/52 ,  C02F1/56 ,  C02F1/66

CPC分类号： C02F9/00 ,  C02F2001/007 ,  C02F1/44 ,  C02F2001/5218 ,  C02F1/5245 ,  C02F1/56 ,  C02F1/66

摘要： A method for treating alkaline fluorine-containing wastewater by combining an induced crystallization method with a tubular membrane filter (TMF) includes: introducing fluorine-containing wastewater into a regulating pond to regulate to 8.0-8.5; introducing alkaline fluorine-containing wastewater into a first-stage chemical sedimentation tank, and adding calcium chloride, poly aluminum chloride, calcium fluoride, and tremolite; performing shearing treatment, then introducing into a first-stage coagulation sedimentation tank and a first-stage inclined-tube sedimentation tank in sequence to discharge a first-stage effluent; introducing the first-stage effluent into a second-stage chemical sedimentation tank, adding calcium chloride and poly aluminum chloride, stirring to react, then introducing into a second-stage coagulation sedimentation tank, adding polyacrylamide, and then flowing into a second-stage inclined-tube sedimentation tank, and discharging a second-stage effluent; and performing a treatment by using the TMF, and then discharging a treated second-stage effluent.