Integrated sewage treatment apparatus, and sewage treatment process flow using apparatus

Abstract

The invention provides an integrated sewage treatment apparatus and a sewage treatment process flow using the apparatus. The sewage treatment apparatus comprises an anaerobic biological treatment pool, an aerobic biological treatment pool, a sewage sedimentation pool and a membrane biological reaction pool; and the anaerobic biological treatment pool, the aerobic biological treatment pool, the sewage sedimentation pool and the membrane biological reaction pool are sequentially connected. The apparatus is used to carry out effective integrated treatment on sewage. The integrated sewage treatment apparatus has the advantages of good sealing property, strong adaption ability to various foundation conditions, acid and alkali resistance, oxidation resistance, no deformation under high or low temperature, and long service life. The sewage production cycle and the onsite construction installation cycle are short, so the apparatus can be fast used; early disposable investment is small, so the operating cost is low; the quality of discharged water is stable, and pollution discharge is maximally treated; the sewage treatment apparatus has a small size, saves space, can be conveniently carried; and the apparatus can be used in a landfill mode, so the occupied earth's surface area is extremely small, noise is small, and the apparatus can be extremely well combined to surrounding living environment.

Description

technical field [0001] The invention relates to the field of environmental protection water treatment, in particular to an integrated sewage treatment device and a sewage treatment process using the device. Background technique [0002] China currently has a rural population of about 674 million, more than 2.5 million natural villages, and a daily sewage discharge of more than 30 million tons, accounting for more than 50% of the country's water pollutant discharge. From 2006 to 2013, the national urban sewage treatment rate increased from 55.7% to 99.1%, which is now close to saturation; the county sewage treatment rate increased from 13.6% to 82.6%, and the sewage treatment rate has increased significantly. At present, the village sewage treatment rate is only 7.0%, and only a few developed provinces and cities such as Beijing, Tianjin, Shanghai, Jiangsu, Zhejiang, Guangdong and other rural domestic sewage treatment ratios can reach about 10%; Shanghai reaches 43%, the high...

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Problems solved by technology

[0004] Disadvantages of commonly used activated sludge treatment process: large area, complex operation, high investment, high energy consumption, high sludge output, poor effluent quality, low nitrogen and phosphorus removal rate

[0007] The main problems in my country's sewage treatment are: the relatively lagging pipe network, the phenomenon of heavy water and light mud is common, the upgrading is very urgent, the degree of sewage recycling is low, the construction and operation management of sewage treatment plants still needs to be strengthened, and the sewage treatment work has not yet been carried out on a large scale. carry out

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