Integrated processor for high concentration non-degradable sewage

Abstract

The invention provides an integrated high-concentration refractory sewage treatment device. It includes a two-phase anaerobic zone and an aerobic zone. The two-phase anaerobic zone is composed of an inner sleeve, a middle sleeve and an outer sleeve. Between the middle sleeve is a two-phase anaerobic transition zone, between the middle sleeve and the outer sleeve is a methanogenic phase reaction zone, the lower part of the two-phase anaerobic transition zone and the methanogenic phase reaction zone is a mud-water separation zone, and the upper part is a In the gas phase area, there is an outlet weir plate around the top of the inner sleeve, and an outlet pipe is installed on the top of the outer sleeve. The outlet water is pumped to the aerobic area on the upper layer. A membrane bioreactor is installed in the aerobic area. In the two-phase anaerobic Both the aerobic area and the aerobic area are equipped with mud discharge pipes, and the lower part of the aerobic area is also equipped with an aerobic inlet pipe, which is connected to the aeration system, and the upper part is equipped with a backwash pipe. The invention has the advantages of good treatment effect, simple process, compact structure, convenient operation and management, small occupied area, low engineering cost and the like.

Description

(1) Technical field [0001] The invention relates to a sewage treatment device, in particular to a reactor for treating high-concentration refractory organic waste water. (2) Background technology [0002] In recent years, due to the continuous occurrence of serious water pollution incidents in the Songhua River and Taihu Lake, all walks of life and environmental protection departments at all levels have paid more and more attention to the discharge of high-concentration industrial wastewater. Therefore, the research on the treatment of high-concentration organic wastewater is particularly important. Anaerobic biological treatment is an efficient biological treatment technology, which has the advantages of high organic load and small sludge production, and is currently widely used in the treatment of high-concentration organic wastewater. However, the concentration of COD in the effluent is relatively high, and the effluent often cannot meet the discharge standards. Membran...

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Problems solved by technology

But there are also some disadvantages: 1) the structure is too simple, and there is no three-phase separator in the anaerobic part, so the complete separation of water, gas and liquid cannot be realized; 2) acid-producing bacteria and methanogenic bacteria are in the same reactor, which cannot provide the best conditions of growth and metabolism, which allow them to exert their respective maximum activity, with lower capacity and efficiency compared to the two-phase anaerobic digestion process

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