Nano catalytic composite fiber membrane and application thereof in Fenton-process wastewater treatment

• Main Authors: ZHANG QIANRU, ZHANG WEIZHENG, LUAN YIQIU, ZHAO YUEXUAN, SU LEI, CAO LIPING, WANG XINYAN, WANG YAJING, LI HAIFENG, SONG FEIFEI
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the technical field of catalysis, and particularly relates to a nano catalytic composite fiber membrane and application thereof in Fenton-process wastewater treatment. The catalytic fiber membrane is prepared by the following steps: adding a ferrous chloride aqueous solution containing bis (dioctyloxy pyrophosphate) ethylene titanate and a sodium oxalate aqueous solution into a reaction feed liquid at 60-75 DEG C in a parallel flow manner, carrying out a precipitation reaction, carrying out aging treatment at 90-95 DEG C, filtering, washing with water, drying, and roasting under an air isolation condition to obtain ferrous oxide powder; the preparation method comprises the following steps: preparing a membrane casting solution from N, N-dimethylacetamide, tridecafluorooctyltriethoxysilane, ferrous oxide powder, polyvinylidene fluoride, polyvinylpyrrolidone and polyethylene glycol 10000; and carrying out wet spinning on the membrane casting solution, and carrying out oxidation treatmen