Forward osmosis-three-dimensional electrode combined reactor and method for removing PPCPs in sewage by virtue of combined reactor

Abstract

The invention discloses a forward osmosis-three-dimensional electrode combined reactor and a method for removing PPCPs (Pharmaceuticals and Personal Care Products) in sewage by virtue of a combined reactor. The forward osmosis-three-dimensional electrode combined reactor comprises a top plate, an anode net, a silica gel sealing pad A, activated carbon three-dimensional particles, a cathode net, aforward osmosis membrane, a silica gel sealing pad B and a base plate, wherein an anode and a cathode are mounted in the silica gel sealing pads, the activated carbon three-dimensional particles are located between the two electrodes, and the forward osmosis membrane is located between the two silica gel sealing pads. According to the forward osmosis-three-dimensional electrode combined reactor and the method, PPCPs are effectively intercepted by virtue of an interception effect of the forward osmosis membrane and the intercepted PPCPs are also oxidized and degraded by virtue of an electrochemistry oxidation effect of a three-dimensional electrode, so that the harmless removal of the PPCPs is realized; by utilizing a low-pressure reverse osmosis device, the stability of the concentration of extracting liquid is guaranteed, the PPSPs entering the extracting liquid can be intercepted again, so that the good effluent quality is guaranteed; and the simultaneous interception and degradationof PPCPs are integrally realized.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a forward osmosis-three-dimensional electrode combined reactor and a method for removing PPCPs in sewage. Background technique [0002] The environmental pollution of pharmaceuticals and personal care products (PPCPs) has become a hot topic at home and abroad in recent years. There are many kinds of PPCPs, including antibiotics, painkillers, weight loss drugs, antihypertensive drugs and other drugs, as well as the main chemical substances in various personal care products such as skin care products, toothpaste and perfume. PPCPs have been frequently detected in many natural environments such as oceans, rivers, lakes, groundwater, soil, etc. Although their concentration in natural water bodies is relatively low (nanogram level, microgram level), due to the frequent use of drugs and care products, Widely used, resulting in sustainable input of PPCPs into the environment...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of inconvenient treatment of PPCPs in the concentrate when treating sewage containing PPCPs by forward osmosis, the object of the present invention is to provide a forward osmosis-three-dimensional electrode combined reactor and a method for removing PPCPs in sewage, which can simultaneously intercept PPCPs in sewage and degradation, to solve the problems raised in the above background technology

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