Pretreatment technique and equipment for degrading high-concentration organic waste water by power ultrasonic cavitation

Abstract

The invention provides a pretreatment technique and equipment for degrading high-concentration organic waste water by power ultrasonic cavitation. The equipment comprises an organic waste water regulating tank, a flow-type power ultrasonic cavitation degradation reactor, an automatic control device and other main operating devices. Through the cavitation effect, mechanical effect and free radical effect generated by the conduction of the power ultrasonic in the high-concentration organic waste water, the pretreatment technique and equipment can destroy the interfaces of functional group structural units of certain key enzymes of various nondegradable organic pollutants, and break the stable chemical bonds / chains so as to oxidize and decompose nondegradable organic pollutants, thereby reducing the nondegradable organic pollutants into inorganic substances or simple and degradable organic substances, and further creating favorable conditions for the application of the conventional sewage treatment technique. The pretreatment technique and equipment are mainly used for treating heavily-polluted industrial high-concentration organic waste water, and can be used independently or matched with other existing sewage treatment techniques.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a power ultrasonic cavitation degradation high-concentration organic wastewater pretreatment technology and equipment for pollution control of high-concentration organic wastewater discharged from heavy-pollution industries. Background technique [0002] The pollution hazards caused by high-concentration organic wastewater to the ecological environment mainly come from organic matter. Organic matter can be roughly divided into two categories: one is natural organic matter, including humus, microbial secretions, dissolved plant tissue, and animal metabolic residues, etc.; the other is artificially synthesized organic matter. According to relevant information, there are now more than 100,000 types of artificially synthesized organic substances, and the number is increasing at a rate of about 2,000 each year; many of the artificially synthesized organic substances are persistent orga...

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Problems solved by technology

[0008] The technical problem to be solved in the present invention is: based on the technical theory of power ultrasonic conduction in liquid to produce cavitation effect and mechanical effect, starting from the enrichment and improvement of high-concentration organic wastewater treatment technology in heavily polluted industries, from the research and analysis of power ultrasonic to refractory organic waste water. Starting from the mechanism of effective degradation of pollutants, research and design a "flow-type power ultrasonic cavitation" that can realize sonochemical reaction operations such as chain breaking, decomposition, and oxidation of refractory organic pollutants in the continuous flow of high-concentration organic wastewater. Degradation reactor" core special technical equipment, forming a power ultrasonic cavitation degradation high-concentration organic wastewater pretreatment technology and equipment that can be used in conjunction with existing sewage treatment technology

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