Integrated liquid-solid separating device for sewage treatment

Abstract

An integrated liquid-solid separating device for sewage treatment comprises a tank body, a water inlet, a first sedimentation tank, a first partition plate, an aerobiotic aeration filler tank, a second partition plate, an oxygen-deficit aeration filler tank, a third partition plate, a second sedimentation tank, a fourth partition plate, an oblique pipe filler sedimentation tank, a fifth partition plate, a quartz sand filter tank, a sixth partition plate, a third sedimentation tank, a water outlet and a sludge return pipe. The tank body passes through the first partition plate, the second partition plate, the third partition plate, the fourth partition plate and the fifth partition plate from left to right, the first sedimentation tank, the aerobiotic aeration filler tank, the oxygen-deficit aeration filler tank, the second sedimentation tank, the oblique pipe filler sedimentation tank, the quartz sand filter tank and the third sedimentation tank are separated by the sixth partition plate sequentially. Multiple cavities are separated out of the tank body, each cavity has an independent function effect, the outlet water heights of the cavities are different, and the liquid level heights in the cavities are ensured, so that sewage treatment can be integrally performed, the number of treatment devices is decreased, and the usage area of the devices is decreased.

Description

technical field [0001] The invention relates to the field of domestic sewage treatment equipment, in particular to integrated sewage treatment liquid-solid separation equipment. Background technique [0002] Domestic sewage treatment generally determines the degree of sewage treatment and the corresponding treatment process based on the utilization or discharge of urban sewage and the natural purification capacity of the water body. Whether the treated sewage is used for industry, agriculture or recharge to replenish groundwater, it must meet the relevant water quality standards issued by the state. Domestic sewage treatment technology can be divided into primary, secondary and tertiary treatment processes according to the degree of treatment. Primary sewage treatment applies physical methods, such as sieving, sedimentation, etc., to remove undissolved suspended solids and floating substances in sewage. The secondary treatment of sewage is mainly the application of biologi...

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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

[0003] Due to the presence of a large amount of insoluble substances in domestic sewage, that is, the separation of liquid and solid must be carried out during sewage treatment. At present, there is no stable and mature treatment equipment for the separation of liquid and solid; the applicant, in view of this One problem, after long-term research and development and testing, a kind of liquid-solid separation equipment for integrated sewage treatment is provided

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