Pneumatic biological drum device and wastewater treatment method with function of efficient biological nitrogen removal

Abstract

The invention discloses a pneumatic biological drum device and a wastewater treatment method with a function of efficient biological nitrogen removal. The pneumatic biological drum device comprises awater tank, a drum and a gas diffusion assembly, wherein the drum is arranged in the water tank, the drum is filled with biological filler, and the gas diffusion assembly is used for supplying oxygento an aerobic area in the water tank through aeration and pushing the drum to rotate. Due to the arrangement of the gas diffusion assembly, while the dissolved oxygen is supplied to a biological filmon the biological filler in the drum through aeration, the drum can be pushed to rotate, therefore, it is achieved that the biological film and wastewater make full contact and mixed, and the nitrogenremoval efficiency is improved. The structure is simple, the area occupied by the device is small, the investment cost is low, through pneumatic drive, the energy consumption is low, and later maintenance is simple.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a pneumatic biological cage equipment and a sewage treatment method for high-efficiency biological denitrification. Background technique [0002] With the rapid development of China's economy, the problem of water pollution has become increasingly serious. The traditional sewage denitrification treatment technology is based on anoxic-aerobic activated sludge method. The denitrification efficiency of this technology is not high, but the energy consumption is high and the sludge is easy to expand. In recent years, the biofilm method based on suspended fillers has gradually attracted people's attention, and is considered to be the potential technology most likely to replace the traditional activated sludge method in the future. The key to its operation effect is to ensure that the fillers are evenly distributed in the equipment to ensure The biofilm is in full contact with...

AI Technical Summary

Problems solved by technology

However, compared with the suspended packing, the effective surface area of ​​the turntable is small, the amount of biofilm adhesion is insufficient, and the space utilization rate is low.

The traditional electric biological turntable needs a turntable drive device such as a gearbox and a motor, which has high energy consumption and heavy maintenance workload, which causes inconvenience to long-term use and maintenance in rural areas and other underdeveloped areas

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