Sewage pretreatment integration device

Abstract

The invention relates to a sewage pretreatment integration device. According to the characteristics of rural towns and residential communities, sewage treatment equipment needs to be miniaturized and generalized, and is designed through research; grille intercepting, sand settling and regulating pool design are integrated; the traditional three-unit operation mode is changed. The traditional grid design is changed into a grid lifting basket design in the device; the manual operation is used; no mechanical equipment is used; the maintenance is not needed in the operation process. A sand settling pool uses an aeration rotational flow vertical flow sand settling mode in the design; the sand settling is accelerated through an air flow rotating effect; the sand discharging adopts a gravity sand discharging mode; no mechanical equipment is installed; the maintenance is not needed in the operation process. For a regulating pool in the design, a submersible pump is arranged in the regulating pool for lifting sewage into a sewage treatment device; a flow pushing stirrer is arranged; through the effect of anaerobic bacteria, organic matters are subjected to hydrolysis, acidification and methanation; the organic matters in wastewater are removed; the biodegradability of the sewage is improved; the subsequent aerobic biological treatment is favorably realized.

Description

technical field [0001] The device relates to the technical field of small-scale water treatment integrated treatment devices, in particular to the pre-treatment of water treatment in rural townships, towns and villages. It is suitable for pre-treatment of sewage in scattered villages, towns and urban residential quarters. Background technique [0002] According to statistics, the country's villages and towns produce more than 8 billion tons of domestic sewage every year, and 96% of the villages have no drainage channels and sewage treatment systems. The indiscriminate discharge of domestic sewage has seriously polluted the ecological environment in rural areas, directly threatening the health of farmers and the economic development of rural areas. At present, the penetration rate of tap water in rural areas across the country is only about 34%, and more than 300 million farmers still have drinking water safety problems. There is a direct causal relationship between the low...

AI Technical Summary

Problems solved by technology

At present, the penetration rate of tap water in rural areas across the country is only about 34%, and more than 300 million farmers still have drinking water safety problems

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