Restoring method of activated carbon for decomposing, processing and adsorbing organic substance in waste water through microwave irradiation

Abstract

The characteristics are: adsorption of organic substances in waste water and regeneration of active carbon are all proceeded in a microwave irradiating regenerating unit, active carbon is granular, humidity is controlled in 35-55 percent, stuffing quantity is 1 / 3-4 / 5 of volume of reactor, microwave frequency is 2450 MHz or 915 MHz, power is 0.5-64 kw, temp. is increased to 800-1200 deg.C and kept 3-5 minutes, total irradiating time is 15 minutes. The microwave irradiating regenerating unit consists of magnetron, microwave cavity resonantor and reactor, in top of which water control valve and vapour exit are set on, and there is a blow head in the reactor and sample connection and water exit on bottom of the reactor, alkali solution absorbing tank connected to vapour exit and gas adsorption column.

Description

technical field

[0001] The invention relates to an activated carbon regeneration method and a microwave irradiation regeneration device for decomposing and treating organic matter in adsorbed waste water by using microwave radiation, which are used for treating organic waste water, especially refractory organic waste water, and belong to the field of water treatment. Background technique

[0002] Activated carbon is a non-toxic, odorless, excellent adsorbent with a well-developed pore structure and a large specific surface area. In the early 1960s, European and American countries began to use activated carbon adsorption to treat urban drinking water and industrial wastewater. At present, the activated carbon adsorption method has become an effective means for the advanced treatment of urban sewage and industrial wastewater and the purification of polluted water sources. Since the early 1970s, the use of granular activated carbon to treat industrial wastewater has developed ...

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