Ozone-based biofilm biochemical reaction system and wastewater purification process

Abstract

The invention belongs to the field of wastewater treatment, and particularly relates to an ozone-based biofilm biochemical reaction system and a wastewater purification process. The system comprises an ozone reactor, an oxygen-enriched aeration biofilm biochemical reactor, and an ozone decomposition reactor, wherein the ozone reactor is used for purifying wastewater by using ozone, the oxygen-enriched aeration biofilm biochemical reactor communicates with an ozone generator, and is used for carrying out deep purification treatment of the purified wastewater and performing discharge, and the ozone decomposition reactor respectively communicates with the ozone generator and the oxygen-enriched aeration biofilm biochemical reactor, and is used for decomposing the unreacted ozone after passingthrough the ozone reactor into oxygen. The invention provides a low-energy-consumption, high-efficiency, and economical wastewater deep purification process: an ozone catalytic oxidation in series with fixed biofilm biochemical reactor. With relatively low energy consumption, wastewater can be purified and discharged up to standard.

Description

technical field

[0001] The invention belongs to the field of wastewater treatment, and in particular relates to an ozone-based biofilm biochemical reaction system, wastewater purification and process for advanced treatment of organic wastewater. Background technique

[0002] In order to cope with the deteriorating ecological environment, the country continues to promulgate stricter environmental protection standards, and the requirements for sewage treatment are also constantly increasing. With the rapid development of industry, the volume of industrial wastewater is increasing, and the components are becoming more and more complex. The difficulty of treatment is also increasing, especially the treatment of those refractory organics or organic pollutants that are toxic to organisms has attracted great attention, but these organic pollutants are not only difficult to biodegrade, but also difficult to use general Oxidant removal by oxidation.

[0003] In order to achieve the ...

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