Catalyzed ozonation film reactor with total removal rate of organic carbon over 99%

Abstract

The invention relates to a catalyzed ozonation film reactor with total removal rate of organic carbon over 99%, which mainly comprises a original water tank, a treatment water tank and an ozone generator, wherein the outlet of the original water tank is connected with an inlet at the lower part of the side of a newly arranged film assembly by a pipeline and a metering pump on the pipeline; the outlet of the ozone generator is connected with an inlet at the top of a buffer tank by a pipeline; an outlet at the top of the buffer tank is communicated with a hollow fiber film inner-cavity through the inlet on the top of the film assembly by a pipeline and a gas flow meter on the pipeline; after a water outlet at the upper part of the side of the film assembly is connected with a pipeline and athree-way pipe on the pipeline to form two pathes, one path is connected with the original water tank, and the other path is connected with the treatment water tank through a flow meter on the original water tank. The ozone generator and a pressure sensor on the top of the buffer tank are respectively connected with a PLC automatic control device by an electric wire. Hollow fiber film threads formed by blending nanometer TiO2 with polyvinylidene fluoride is filled in the film assembly. The ozone becomes liquid phase through the hollow fiber film inner-cavity of the film assembly in the existence of bubble points.

Description

technical field [0001] The patent of the present invention relates to the feedwater treatment technology, more precisely, it belongs to a catalytic ozonation membrane reactor with a TOC removal rate of over 99% for boiler feed water of a thermal power unit. Background technique [0002] With the increasingly prominent problem of non-point source water pollution in my country, organic pollutants and ammonia nitrogen in water have an increasing impact on the safe operation of boilers of high-parameter and large-capacity thermal power units. The traditional boiler make-up water treatment process cannot completely remove the pollutants in the water fundamentally, so seeking an economical, efficient and environmentally friendly make-up water treatment process has become an urgent problem to be solved in the power industry. [0003] In recent years, with the development of advanced oxidation technology (AOP), ozone has attracted much attention due to its strong oxidation ability. ...

AI Technical Summary

Problems solved by technology

However, the problems of using the ozone oxidation process alone are: (a) low utilization rate; (b) insufficient oxidation capacity; (c) low solubility in water; (d) selective degradation of organic matter, etc.

Compared with the single ozone oxidation process, the heterogeneous catalytic ozonation technology improves the removal rate of organic matter and ammonia nitrogen in water and the utilization rate of ozone, but the problem of catalyst deposition and loss still needs to be further solved

Images