Circulation type methane matrix membrane biological membrane reactor and sewage treatment method

Abstract

The invention relates to a circulation type methane matrix membrane biological membrane reactor and a sewage treatment method. A seal head seals the upper ends of a main reaction region and is provided with an air inlet pipe, one end of a hollow fiber membrane is sealed in the seal head and communicated with the air inlet pipe, the lower portion of the main reaction region is connected with an anti-impact porous plate, the lower portion of the anti-impact porous plate is connected with a sludge region, a blow-down pipe is arranged at the bottom of the sludge region, the main reaction region and a circulating pipe are connected together to from an upper transiting pipe and a lower transiting pipe, the upper end of the circulating pipe is connected with a driving motor, a motor shaft of thedriving motor is connected with an axial-flow type stirring paddle, a water inlet pipe is arranged at the lower end of the circulating pipe, and a water outlet pipe is arranged on one side of the upper end of the circulating pipe. The circulation type methane matrix membrane biological membrane reactor is convenient to operate; the effect of methane mass transfer is good, and the utilization rateis high; sludge easily attaches to the circulation type methane matrix membrane biological membrane reactor; nitrogen-containing wastewater can be treated.

Description

technical field [0001] The invention belongs to the field of sewage treatment equipment, and in particular relates to a circulating methane matrix biofilm reactor and a sewage treatment method. Background technique [0002] Methane is an important fossil fuel, a non-negligible greenhouse gas, an abundant hydrocarbon in nature, and also serves as a substrate for microbial growth. In recent years, due to the excessive discharge of industrial and agricultural wastewater, the nitrogen content of my country's surface waters has continued to increase, and water eutrophication incidents have occurred frequently, seriously threatening the safety of drinking water for humans and animals. The combination of anaerobic and aerobic treatment is a commonly used technology for industrial and agricultural wastewater treatment in my country. However, the application of this kind of technology, especially in small and medium-sized wastewater treatment plants, often leads to the difficulty of...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of low alkane utilization rate and poor mass transfer effect of methane in reactors such as SBR and anaerobic MBR commonly used in the denitrification type methane anaerobic oxidation process, and the problems of denitrification type methane anaerobic oxidation It is difficult to domesticate, enrich and cultivate functional flora in a short period of time, and provide a circulating methane-based plasma membrane organism that is easy to operate; methane mass transfer effect is good and utilization rate is high; sludge is easy to adhere; and nitrogen-containing wastewater can be treated Membrane reactor and sewage treatment method

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