Equipment for internal cycle treatment of waste water through coordination of ozone and ultraviolet

Abstract

The invention discloses equipment for internal cycle treatment of waste water through coordination of ozone and ultraviolet. The equipment comprises a circular spraying tower and an automatic control system, wherein the bottom of the circular spraying tower is connected with a crude water tank and an ozone generator; the bottom of the circular spraying tower is provided with an effluent electromagnetic valve; the circular spraying tower is provided with an ozone aeration circulating system and a waste water spraying system; the ozone aeration circulating system comprises an aerating head which is arranged at the bottom of the circular spraying tower and a circulating fan which is arranged between the bottom and the top of circular spraying tower; the waste water spraying system comprises a spraying head which is arranged above the inside of the circular spraying tower, and a circulating water pump which is arranged between the bottom and the top of the circular spraying tower; an ultraviolet lamp tube and a ceramic filter are arranged below the spraying head. By adopting the waste water treatment equipment disclosed by the invention, ozone and ultraviolet oxidization are integrated organically; a spraying tower structure is utilized, and ozone gas and organic waste water are circulated in a reverse double cycle way, so that the ozone utilization efficiency is increased, and organic waste water is circulated and degraded efficiently through the ozone and the ultraviolet.

Description

technical field [0001] The invention relates to a waste water treatment device, in particular to a device for treating waste water in cooperation with ozone and ultraviolet rays in internal circulation. Background technique [0002] As a practical and efficient advanced oxidation technology, ozone oxidation has the advantages of strong oxidation ability, short reaction time, no secondary pollution, simple equipment, etc. has wide application potential. Ozone oxidation technology is not limited by wastewater chromaticity, wastewater colloidal substances, high temperature and high pressure and strict pH, and will not produce a large amount of secondary pollutants. It can oxidize refractory organic substances into carbon dioxide, water and other inorganic substances, or convert Oxidation of toxic and harmful substances into harmless substances has become one of the key technologies for removing highly stable and refractory organic pollutants in water. [0003] However, there ...

AI Technical Summary

Problems solved by technology

[0003] However, there are some problems in the actual application of ozone advanced treatment technology: (1) The solubility of ozone in water is low, the utilization rate is low, and the oxidation effect is limited in a short time, resulting in poor treatment effect; (2) The contact time between ozone and wastewater is short, A large amount of ozone waste is caused, which increases operating costs; (3) Ozone has strong oxidizing properties, and there are secondary pollution problems; (4) General ozone oxidation wastewater treatment equipment has the problems of poor gas-liquid contact effect and large equipment footprint

(5) It is easier for ozone to break the unsaturated bonds in macromolecules and decompose them into small molecular substances, but the ability to continue to oxidize and mineralize these small molecular substances needs to be improved. In order to achieve a better treatment effect, multiple sets of equipment need to be used in series, which increases the investment cost.

However, the application of ultraviolet lamps in water is limited to sterilization and disinfection, mainly due to the high chroma of organic wastewater, low light transmittance, weak penetration of ultraviolet lamps in water, and low oxygen content in wastewater, the effect of ultraviolet lamps produces less ozone

Images