Device for improving water purification efficiency of ultra-filtration membrane by performing pre-treatment of activating persulphate by ferrous ions and application method thereof
A technology for activating persulfate and ferrous ions, used in chemical instruments and methods, oxidized water/sewage treatment, water/sewage treatment, etc. Contaminant removal and other issues, to achieve the effect of improving water purification efficiency, easy operation, and enhanced removal
Pending Publication Date: 2017-06-20
NAT ENG RES CENT OF URBAN WATER RESOURCE +1
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Abstract
The invention relates to a device for improving the water purification efficiency of an ultra-filtration membrane by performing pre-treatment of activating persulphate by ferrous ions and an application method thereof, and aims to solve the problems that membrane pollution exists in ultra-filtration membrane operating, a trace organic substance removal effect is poor, and the ultra-filtration membrane pollution cannot be relieved effectively and pollutant removal cannot be reinforced in a conventional pre-treatment technology. The device consists of a raw water pipeline, a ferrous ion adding device, a persulphate adding device, an oxidative coagulation reaction tank, a sedimentation tank and an ultra-filtration membrane assembly. According to the device for improving the water purification efficiency of the ultra-filtration membrane by performing the pre-treatment of activating the persulphate by the ferrous ions and the application method thereof, a synergistic effect between the ferrous ions and the persulphate can be fully played; the ultra-filtration membrane pollution is relieved effectively, and meanwhile, the removal of micropollutant is reinforced.
Application Domain
Water/sewage treatment by flocculation/precipitationWater/sewage treatment by oxidation
Technology Topic
Pre treatmentRaw water +8
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