Treatment device with synergistic effect of multi-wavelength UV-LED lamp strip and chlorine water and treatment method

Abstract

The invention discloses a treatment device with a synergistic effect of multi-wavelength UV-LED lamp strip and chlorine water and a treatment method. The treatment device comprises a reaction vessel,an electric stirrer, a full quartz glass light source protecting cold trap, a multi-wavelength UV-LED lamp strip, an ultraviolet spectrum water quality analyzer, a chlorine-supplementing device, a PLCcontrol panel and a plurality of residual chlorine meters; a water feeding pipe and a water draining pipe are arranged on the reaction vessel; the water feeding pipe is connected with a water inlet;the water draining pipe is connected with a water outlet; the residual chlorine meters are arranged on the water draining pipe; the multi-wavelength UV-LED lamp strip is arranged in the full quartz glass light source protecting cold trap; the PLC control panel is respectively connected with the chlorine-supplementing device, the multi-wavelength UV-LED lamp strip, the ultraviolet spectrum water quality analyzer, the residual chlorine meters and the electric stirrer. The treatment device provided by the invention is capable of effectively removing trace organic pollutants in water while reducing acute toxicity and genetic toxicity of solution, so as to promote the safety of water use.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a multi-wavelength UV-LED lamp belt cooperative chlorine water treatment device and a treatment method. Background technique [0002] With the development of society, organic pollutants in water have aroused people's attention to the safety of water quality. Trace organic pollutants in water mainly include pesticides (such as herbicides, insecticides, etc.), pharmaceuticals and personal care products (PPCPs), chemicals and plastic products, naturally occurring chemicals, etc. substances, etc.). [0003] With the large-scale development of the pharmaceutical and cleaning industries, the production and use of pharmaceuticals and personal care products (PPCPs) have increased rapidly, resulting in their residues in water, soil and the atmosphere. PPCPs include a wide variety of chemical substances, such as various prescription and over-the-counter drugs (such as...

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Problems solved by technology

The risk of water quality transformation mainly occurs in the disinfection process, and it is difficult to avoid the production of by-products such as chloroform and trihalomethanes

[0005] After the 1970s, it was found that traditional chlorine disinfection would produce by-products such as teratogenic, carcinogenic, and mutagenic halogenated alkanes, while UV disinfection has the advantages of not adding chemicals, producing no toxic and harmful by-products, and not adding water. Smell and taste, fast disinfection, high efficiency, simple equipment operation, easy operation management and automation, etc., overcome the shortcomings of the existing traditional disinfection, and have gradually been widely used in recent years, but it cannot be continuously disinfected, and because of its wear The permeability is very poor, and usually only the surface of the sample can be sterilized

[0013] Chlorine disinfection generally produces disinfection by-products with "three effects". Although ultraviolet disinfection basically does not produce disinfection by-products, does not cause secondary pollution problems, and is easy and quick to operate and maintain, it does not have the ability to follow-up disinfection

However, traditional ultraviolet disinfection is not easy to achieve uniform radiation in the entire treatment space, and there are irradiated shadow areas; the ultraviolet disinfection device consumes a lot of power, and the maintenance cost and cost of equipment are relatively high.

There are many different organic substances in the water body, such as phenols, aromatic compounds and other organic substances, and the chlorine-containing disinfectants required for their effective removal are also different. The existing ultraviolet and chlorine dioxide combined process is difficult to achieve effective removal of organic substances. removal, high energy consumption, and cannot reduce the acute toxicity and genotoxicity of the solution

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