Device and method with ultrasonic ozone and ultraviolet synergized for water treatment

Abstract

The invention discloses a device and a method with ultrasonic ozone and ultraviolet synergized for water treatment. The device comprises an outer cylinder and an inner cylinder positioned inside the outer cylinder, an ultraviolet treatment area is formed between the outer cylinder and the inner cylinder, and a water outlet is arranged on the upper portion of the wall of the outer cylinder. An ultraviolet lamp is arranged on the outer wall of the inner cylinder, an air inlet pipe and an air escape valve are arranged at the top of the inner cylinder, and an ozone inlet pipe is arranged at the bottom of the inner cylinder and connected with an ozone aerator. A padding layer is arranged on the inner upper of the inner cylinder, an ultrasonic reaction area is arranged below the padding layer, and a water outlet valve and an ultrasonic transducer are disposed on the inner wall of the ultrasonic reaction area. Using the device to treat slightly-polluted waste water enables quality of discharged water to reach the primary standard of national emission standards, and the problem of bromate during ozonization of brominated waste water can be solved. In addition, the device and the method have the advantages of simple flow, no pollution and low cost.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and energy saving, and relates to equipment for advanced treatment of slightly polluted water or waste water, in particular to a water treatment device and method for synergy of ultrasonic ozone and ultraviolet rays. Background technique [0002] Slightly polluted water bodies generally refer to water bodies that contain many types of pollutants and complex properties, but relatively low concentrations. Its micro-pollutants mainly include petroleum hydrocarbons, volatile phenols, ammonia nitrogen, pesticides, COD, heavy metals, arsenic, cyanide, iron, manganese, etc. These pollutants will cause great harm to human health, especially those that are difficult to degrade, easy to Bioaccumulation and toxic organic pollutants with tertiary effects also produce a certain smell while polluting water quality. [0003] Conventional drinking water treatment processes are mainly coagulation...

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Problems solved by technology

[0005] But ozone itself has certain problems, such as high energy consumption and low yield of ozone. The ozone concentration produced by domestic and foreign ozone generators is generally 5% to 10%; the solubility of ozone in water is not high, and most of the Ozone escapes from the water because it cannot be dissolved, and is finally discharged as exhaust gas; ozone is highly toxic, flammable and explosive; when treating bromine-containing wastewater, the by-product bromate produced by ozone oxidation is also a toxic and harmful substance

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