Wastewater Treatment Equipment

Abstract

The invention provides a wastewater treatment equipment. The wastewater treatment equipment stabilizes water current in a treatment groove, reduces aeration air supply volume and inhibits strength load of the treatment groove serving as a construction structural body to the minimum. The wastewater treatment equipment is provided with the treatment groove, an air diffusion device and a supporter separation device. Wastewater flow from an inlet is contacted with a supported having microbial immobilization realized for biological treatment in the treatment groove. The diffusion device enables the wastewater in the treatment groove to produce swirling flows and oxygen is supplied. The support separation device is provided with filter meshs formed by arranging wire rods or rods in parallel. Separation faces of the filter meshes are arranged on an upstream part of an outlet of the treatment groove in a downwardly inclined manner. Back sides of the separation faces of the two filter meshes are arranged oppositely, so that a shared water discharging area connected with the outlet is formed. Beside, support legs arranged on the bottom face of the treatment groove are utilized for supporting the support separation device provided with the filter meshes.

Description

technical field [0001] The present invention relates to waste water treatment facilities, and particularly to an improvement in waste water treatment facilities for biologically treating waste water by contacting it with a support on which microorganisms are immobilized. Background technique [0002] Conventionally, as waste water treatment facilities, waste water treatment facilities of a support addition method having a treatment tank, a gas diffusion device, and a support separation device have been widely used. In the treatment tank, biological treatment is performed by bringing the waste water flowing in from the inflow port into contact with the support on which microorganisms are immobilized. The above-mentioned gas diffusion device makes the wastewater in the treatment tank generate swirl flow and supply oxygen. The above-mentioned support separation device has a filter screen in which wires or rod-shaped bodies are arranged side by side, and the separation surface ...

AI Technical Summary

Problems solved by technology

[0006] However, in this kind of wastewater treatment equipment, the comprehensive aeration method is often used. In the carrier separation device with only one filter screen, there are the following problems: the swirling flow in the treatment tank generated by the aeration gas is in the entire treatment tank. Therefore, the water flow tends to be unstable. In order to stabilize the water flow, it is necessary to increase the supply of aeration gas.

[0007] In addition, since the carrier separation device as a mechanical structure is mounted on the wall surface of the treatment tank as a civil structure, it is necessary to increase the strength of the treatment tank as a civil structure, so there is a problem of increased equipment costs.

[0008] In addition, the gas blowing structure for blowing gas from the gas blowing mechanism arranged on the support separation device is a structure in which a plurality of fine holes for blowing gas are opened in a sealing member such as a pipe connected to a gas supply source. During maintenance and management, when the blowing of gas is stopped, the wastewater in the treatment tank flows back from the micropores into the piping, and after repeated repetitions, the micropores may be clogged and the cleaning effect of the filter cleaning will be significantly reduced. , and, due to the different distances from the gas supply source, the amount of gas blown from the micropores is not uniform, resulting in the problem that it is difficult to effectively clean the entire surface of the filter screen

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