Micro-pore aeration system

Abstract

The invention discloses a micro-pore aeration system, which is used for the bottom aerobic aeration of the sewage biological treatment, and mainly consists of a micro-power aeration device, an air distribution pipe network, an air supply main pipe, a water-sealing safety device, a main valve, a blower, an air filter and an end drain device. The micro-pore aeration device mainly consists of a hydrophobic effect micro-pore aeration diaphragm, a soft capsule, an elevation-type check valve plate, a press cover and a base; the water-sealing safety device consists of a Y-shaped tee pipe, a U-shapedpipe, an adjusting pipe and a pressure stabilizing pipe; and the end drain device mainly consists of a drain tank, a drain pipe, a drain valve, a discharging pipe and an air release valve. Compared with the similar advanced technologies both at home and abroad, the micro-pore aeration system has the advantages that the service life is greatly prolonged, while the aeration efficiency is improved and the running power consumption is reduced, and the service life can reach more than 20 years, so the total cost of the sewage treatment is greatly reduced, and the vast economic benefit can be realized.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a microporous aeration system for sewage biochemical treatment. Background technique [0002] There are two main types of aeration equipment for sewage treatment: surface aeration equipment such as pump (umbrella) type, rotary brush (disk) and bottom aeration equipment such as microporous aerator (tube), cyclone aerator, diffuse flow aerator, etc. Aeration equipment. Microporous aeration equipment has high power efficiency, more than twice that of surface aeration equipment, which can greatly reduce the operating power consumption of sewage treatment, and has been widely used in engineering. [0003] Microporous aeration equipment is roughly divided into two types: corundum microporous aeration equipment with fixed pore diameter and rubber microporous aeration equipment with variable pore diameter. There are the following disadvantages during use: [0004] 1. The former is prone...

AI Technical Summary

Problems solved by technology

[0004] 1. The former is prone to water ingress in the micropores during the alternating start and stop of aeration operation, resulting in microbial growth and blockage and inconvenient cleaning. The latter is prone to fatigue and rupture of the rubber membrane due to the continuous expansion and contraction of the pore diameter during the aeration process, which cannot be repaired;

[0005] 2. Due to the gradual blockage of the aeration micropores or the aging and hardening of the rubber, the rated aeration volume will decrease, which will increase the air resistance loss and increase the power consumption;

[0007] 4. The service life is short, generally about 5 years, which is far behind the surface aeration equipment with a service life of about 15 years and easy maintenance;

[0008] 5. Replacing or cleaning damaged or clogged microporous aeration equipment requires heavy workload, high cost, long cycle and large impact

[0009] The above-mentioned shortcomings of microporous aeration equipment are the main reasons for the increase in management and maintenance costs of sewage treatment. Compared with surface aeration equipment, the economic benefits of comprehensive operation are not in an advantageous position. These shortcomings are due to the current equipment material performance and technology. It is also difficult to improve and break through on the original basis.

Images