Double-membrane method integrated sewage treatment equipment

Abstract

The invention provides double-membrane method integrated sewage treatment equipment. The double-membrane method integrated sewage treatment equipment comprises a plurality of biological contact oxidation ponds, an MBR membrane pond and a filter, wherein a garland combined filler is arranged in the biological contact oxidation ponds, an MBR membrane assembly is arranged in the MBR membrane pond, awater inlet is formed in the top of at least one biological contact oxidation pond, raw water enters from the water inlet and sequentially passes through the biological contact oxidation pond and theMBR membrane pond, and a membrane water outlet pipe of the MBR membrane pond is connected with a membrane water outlet pump; the membrane water outlet pump is connected with a water inlet pipe of a filter through a waterway channel; the water outlet of the filter is connected with a clear water outlet pipe; microporous aeration coils are arranged in the biological contact oxidation ponds and theMBR membrane pond, and the outer ports of the microporous aeration coils are connected with an air blower. According to the double-membrane method integrated sewage treatment equipment, the technicalcharacteristic of combination of the biological contact oxidation membrane and the membrane bioreactor (MBR) is integrated, and the water quality of clear water is improved through the filter with thebuilt-in AFM active filter material.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a double-membrane method integrated sewage treatment equipment. Background technique [0002] At present, facultative MBR-integrated sewage treatment equipment on the market is mainly composed of anaerobic tanks, facultative tanks and MBR reaction tanks connected in sequence, using activated sludge method and membrane bioreactor to remove organic matter and degrade ammonia nitrogen value at the same time . This device has the following disadvantages: [0003] 1. The anaerobic tank and the facultative tank use spherical suspended filler as the biological carrier, the specific surface area of ​​the filler is relatively small, and the bacterial content is small; [0004] 2. Facultative MBR integrated sewage treatment equipment only has anaerobic pool, facultative pool, and MBR pool. There is no aerobic pool, and aerobic microorganisms cannot be cultivated, which can effec...

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Problems solved by technology

[0004] 2. Facultative MBR integrated sewage treatment equipment only has anaerobic pool, facultative pool, and MBR pool. There is no aerobic pool, and aerobic microorganisms cannot be cultivated, which can effectively degrade most of cod (chemical oxygen demand), ammonia nitrogen, etc. in sewage organic matter;

[0005] 3. The facultative MBR-integrated sewage treatment equipment currently on the market generally does not have a filter, or uses quartz sand as the filter material, which cannot guarantee the water quality standard;

[0006] 4. The output of residual sludge is higher

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