公开(公告)号：US20240336508A1

公开(公告)日：2024-10-10

申请号：US18631294

申请日：2024-04-10

申请人： Xi'an University of Architecture and Technology

发明人： Xudong WANG ,  Haibing TANG ,  Bitao XU ,  Lei WANG ,  Licheng CHEN ,  Yongtao LV

IPC分类号： C02F9/00 ,  B01D61/02 ,  B01D61/14 ,  B01D61/42 ,  B01D61/44 ,  B01D61/58 ,  B01D69/02 ,  B01D71/02 ,  C02F1/44 ,  C02F1/467 ,  C02F1/469 ,  C02F1/66 ,  C02F5/02

CPC分类号： C02F9/00 ,  B01D61/58 ,  B01D69/02 ,  B01D71/02 ,  B01D61/025 ,  B01D61/147 ,  B01D61/422 ,  B01D61/445 ,  B01D2311/08 ,  B01D2325/02834 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4672 ,  C02F1/4695 ,  C02F1/66 ,  C02F5/02 ,  C02F2201/46145

摘要： Disclosed are a method and system for resource treatment of a reverse osmosis concentrated brine (ROC) by bipolar membrane electrodialysis. The method includes: adding a calcium-magnesium precipitant to ROC, and mixing, to remove hardness; filtering a resulting mixture through diatomaceous earth, to intercept an organic matter and a precipitate; adjusting a resulting filtrate to be acidic with a pH adjuster; feeding a resulting acidic filtrate in an electro-Fenton reaction device, and subjecting the resulting acidic filtrate to oxidation under an acidic environment, such that a chemical oxygen demand removal rate is not less than 97%; subjecting a resulting effluent from the electro-Fenton reaction device to fine filtration with a polypropylene microporous filter, to obtain a fine filtrate; and introducing the fine filtrate into a bipolar membrane electrodialysis device, and performing the bipolar membrane electrodialysis, to generate an acid and an alkali under the action of an external electric field.