Wastewater treatment technique for pressurization static bed biomembrane reactor

Abstract

The invention discloses a sewage treating art adopting pressurizing aeration to be operated in a closed fixed bed biological membrane reactor. The sewage treating art reactor consists of a reactor main body and a pressure control and adjusting system. The invention is characterized in that a buffering area, a bearing filtering board water and gas distribution system, a grain filling layer, a clear water area, a pressure air area and a gas-water separator are respectively connected by a pipeline from bottom to top; wherein, the bearing filtering board water and gas distribution system are arranged between the buffering area and the grain filling layer; the gas-water separator is connected with the clear water area through a pipeline; the pressure air area is provided with the pressure control and adjusting system which is used for displaying and controlling the air pressure so as to automatically and dynamically adjust the rotating speed of the air compressor and ensure that the supplied air volume and pressure even satisfy the set requirement of operation. Adopting the pressurizing fixed bed biological membrane reactor sewage treating art can markedly improve the treating efficiency of sewage, thereby having comparatively higher application value on the sewage treating application.

Description

technical field [0001] The invention relates to a sewage treatment process using pressurized (non-pressure) aeration operation in a closed fixed-bed biofilm reactor, which can treat domestic sewage and organic industrial wastewater to reuse or discharge standards. Background technique [0002] Domestic sewage and organic industrial wastewater are the main factors leading to water pollution in my country. The amount of such sewage (waste) water is large and scattered. The organic pollutants and nitrogen elements mainly contained in sewage (waste) water will be oxidized and decomposed after being discharged into surface water bodies. , During the decomposition process, a large amount of dissolved oxygen in the water body is consumed, and eventually the water body is hypoxic, so that aquatic animals such as fish living in the water body cannot breathe and die. At the same time, the foul-smelling gas makes the water body smelly and black, which deteriorates the environmental condi...

AI Technical Summary

Problems solved by technology

Because the weight ratio of oxygen in the air component is 21%, and the air is blown in from the blower and released into small bubbles through the aerator until the bubbles rise to the liquid surface and burst, the oxygen in the bubbles is transferred to the sewage. 5% of the air weight, and the oxygen accounting for about 16% of the air weight is not used and returned to the atmosphere, so that the transfer efficiency of oxygen to the sewage is not high. On the one hand, the oxygen in the air is not fully utilized. To achieve a certain treatment effect, it is necessary to increase the supply of oxygen, thereby increasing energy consumption; on the other hand, because the rate of aerobic biological reaction is limited by the concentration of dissolved oxygen in the sewage, the organic load and biodegradation efficiency of the reactor are not high, which leads to the Huge system, increased investment and operating costs

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