Airlift sonochemical reactor

Abstract

The invention discloses an airlift sonochemical reactor, which is characterized in that: a vertical reacting cylinder is arranged; an ozone distributor with a gas outlet being upwards is arranged on the bottom of the reacting cylinder, a water outlet of a waste liquid tubing guide is close to the upper of the distributor, and keeps flow direction of water outlet being symmetrical with flow direction of ozone; energy transducers are arranged on the internal side wall of the reacting cylinder in an array manner, and a low frequency energy transducer and a high frequency energy transducer in a same horizontal plane are oppositely arranged on a same diameter line to form a energy transducer pair; and the number of the energy transducer pairs on a same horizontal plane is odd number, and the energy transducers uniformly distributed on a same circumference are arranged in an interval arrange manner of a low frequency energy transducer and a high frequency energy transducer. The airlift sonochemical reactor of the invention can high-efficiency utilize the synergism of ultrasonic wave and ozone, promotes acoustic cavitation effect, and can be used for treating industrial wastewater which is difficult to degrade.

Description

technical field [0001] The invention relates to a wastewater treatment device, which belongs to the technical field of environmental protection equipment, in particular to an air-lift sonochemical reactor. Background technique [0002] Sonochemistry refers to a new interdisciplinary subject that uses ultrasonic waves to accelerate chemical reactions or increase yields. At present, the application fields of sonochemistry have involved organic synthesis, biochemistry, analytical chemistry, polymer materials, surface processing, biotechnology and environmental protection etc. Since the 1990s, foreign countries have begun to study the application of ultrasonic chemistry to sewage control, especially the treatment of toxic organic pollutants that are difficult to degrade in wastewater, and have achieved satisfactory results. [0003] Refractory biodegradable organic substances are difficult to remove by the current conventional secondary biological treatment process, and almost ...

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Problems solved by technology

However, in practice, most people have not analyzed the characteristics of ultrasound (ultrasonic propagation, thermal mechanism, etc.), so the designed reactor structure is relatively simple, mainly in the layout of the ultrasonic generator and the structural design of the reactor. , resulting in very low ultrasonic energy utilization and sonication yield, generally applicable to laboratories

For example, the Chinese invention patent application number 200720190903.6 applied for a multi-frequency sonochemical reactor. Although it uses a combination of different frequency ultrasonic transducers, the influence of medium changes on ultrasonic propagation makes the external installation greatly reduce the ultrasonic utilization. Unable to maximize the wastewater treatment effect of dual-frequency ultrasound

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