Two-stage horizontal integrated sewage treatment plant

Abstract

The present invention discloses a two-stage horizontal integrated sewage treatment plant, which includes a grille, an anaerobic tank, a water-passing channel, an aerobic tank, a circulation channel, a rapid precipitation backflow tank, a water collecting tank, a bag-type filter, a clear water pool and a water pump, incoming water passes through the grille for pretreatment and then mixed with part of water from the aerobic tank, then enters the anaerobic tank for biological nitrogen removal and phosphorus release treatment, and then flows into the aerobic tank for removal of organic compounds in the water and biological nitrification, phosphorus uptake, the water treated by the aerobic tank is divided into two parts, one part of the water is mixed with water pretreated by the grille for recirculation, the other part of the water enters the rapid precipitation backflow tank by the circulation channel, mud-water separation of the incoming water is performed by the rapid precipitation backflow tank, clarification water passes through the water collecting tank to flow into the bag-type filter, the bag-type filter remove suspended solids in the water to discharge clear water out, and the clear water is collected in the clear water tank and pumped out by the water pump. The two-stage horizontal integrated sewage treatment plant is cleverly designed, highly practical, and suitable for being used in rural areas lack of sewage treatment implementation.

Description

technical field The invention relates to the field of sewage treatment devices, in particular to a two-stage horizontal integrated sewage treatment device. Background technique According to the data of China Statistical Yearbook in 2013, from 2006 to 2013, the sewage treatment rate of cities nationwide rose from 55.7% to 99.1%, which is now close to saturation; the sewage treatment rate of counties rose from 13.6% to 82.6%. The rate has also increased significantly. Except for a few cities and towns to pick up waste and make up for vacancies and improve standards, the only shortcoming is the rural market. Statistics show that in 2012 China's rural sewage treatment rate was only 7.0%, and only a few developed provinces and cities such as Beijing, Shanghai, and Tianjin have achieved certain results in rural sewage treatment. Among them, the rural sewage treatment rate in Beijing and Shanghai exceeds 40%, but most of the other provinces have not fully rolled out, and only car...

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Problems solved by technology

Among them, the rural sewage treatment rate in Beijing and Shanghai exceeds 40%, but most other provinces have not fully implemented it, and only carried out pilot or demonstration projects in some villages and towns

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