Urban and rural life sewage treatment device

Abstract

The invention discloses an urban and rural life sewage treatment device. The device comprises multiple sets of coarse filtering equipment and two transfer tanks; each set of coarse filtering equipmentcomprises a stainless steel tank body which is transversely arranged, a sedimentation tank is processed on the right side of each tank body, the depth of each sedimentation tank is greater than thatof the corresponding tank body, a water baffle is welded to the interior of each sedimentation tank, an overflow tank is formed in the right side of each water baffle, water pipes communicated with each overflow tank are welded to the front end face and the rear end face of the corresponding tank body respectively, the high portions of the water pipes are located on the upper half portion of eachsedimentation tank, the height of the water pipes is lower than that of the upper end of each water baffle, a water inlet pipe used for allowing sewage to enter is inserted into the left side of eachtank body, a filter is assembled on the right side of each water inlet pipe, and an overflow pipe is welded to the right side of the sedimentation tank. Accordingly, filter net cleaning can be achieved without stopping a machine when sewage primary treatment is conducted.

Description

technical field [0001] The invention relates to a township domestic sewage treatment device. Background technique [0002] Municipal sewage (municipal sewage, municipal wastewater) is a general term for sewage discharged into the urban sewage system. In the combined drainage system, production wastewater and retained rainwater are also included. [0003] Urban sewage mainly includes domestic sewage and industrial sewage, which is collected by the urban drainage pipe network and transported to the sewage treatment plant for treatment. [0004] The urban sewage treatment process generally determines the degree of sewage treatment and the corresponding treatment process according to the utilization or discharge of urban sewage and considering the natural purification capacity of the water body. The treated sewage, whether used in industry, agriculture or recharge to supplement groundwater, must meet the relevant water quality standards issued by the state. [0005] Modern se...

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Problems solved by technology

The tertiary treatment is advanced treatment, the effluent water quality is better, even can meet the drinking water quality standard, but the treatment cost is high, except in some countries and regions that are extremely short of water, it is rarely used

[0007] The first-level sewage treatment is mainly to remove large impurities in the sewage to facilitate subsequent treatment. However, in the existing technology, the filter method of the screen is used, and the screen needs to be cleaned frequently, and the machine needs to be shut down every time the screen is cleaned. operation, resulting in slower processing efficiency

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