Multi-wavelength uv-led lamp belt synergistic chlorine water treatment device and treatment method

Abstract

The invention discloses a multi-wavelength UV-LED lamp strip collaborative chlorine water treatment device and a treatment method, including a reaction vessel, an electric stirrer, an all-quartz glass light source protection cold trap, a multi-wavelength UV-LED lamp strip, and an ultraviolet spectrum water quality analysis instrument, chlorine adding device, PLC control panel and multiple residual chlorine meters; the reaction vessel is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the water inlet, the water outlet pipe is connected to the water outlet, and the residual chlorine meter is set on the water outlet pipe; multi-wavelength The UV‑LED light strip is installed in a cold trap protected by an all-quartz glass light source, and the PLC control panel is respectively connected to a chlorine supplement device, a multi-wavelength UV‑LED light strip, an ultraviolet spectrum water quality analyzer, a residual chlorine meter and an electric stirrer. The invention can effectively remove the trace organic pollutants in the water body and reduce the acute toxicity and genotoxicity of the solution, thereby improving the safety of water.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and particularly relates to a multi-wavelength UV-LED lamp belt collaborative 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 bodies 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 laundry industries, the production and use of pharmaceuticals and personal care products (PPCPs) have grown rapidly, resulting in their residues in water, soil and atmospheric environments. PPCPs include a wide variety of chemicals, such as various prescription and over-the-counter drugs (such...

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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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