Sewage treatment system for water shortage cities and storage and advanced treatment method of sewage and rainwater

A technology for treatment system and urban sewage, applied in the field of water treatment, can solve problems such as unsatisfactory effect, and achieve the effect of effective and reliable sewage treatment, flexibility and adjustability, and buffer impact

Inactive Publication Date: 2010-11-24
NORTHEAST NORMAL UNIVERSITY
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  • Application Information

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Problems solved by technology

However, the effect of using stabilization ponds or constructed wetlands alone to purify sewage is not satisfactory

Method used

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  • Sewage treatment system for water shortage cities and storage and advanced treatment method of sewage and rainwater
  • Sewage treatment system for water shortage cities and storage and advanced treatment method of sewage and rainwater
  • Sewage treatment system for water shortage cities and storage and advanced treatment method of sewage and rainwater

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Embodiment Construction

[0023] This system is composed of pretreatment station 1, stabilization pond 2, drainage and irrigation station 3 and artificial wetland 4. Stabilization pond 2 is divided into anaerobic pond 5, facultative pond 6, primary aquatic plant pond 7, and secondary aquatic plant pond 8. The first-class aquatic animal pond 9 and the second-class aquatic animal pond 10. The artificial wetland 4 is built around the stabilization pond 2 and separates each stabilization pond 2. The width of the artificial wetland 4 is 5 meters. Each stabilization pond 2 has a width of 8 meters and a length of 16 meters. The bottoms of the stabilization pond 2 and the constructed wetland 4 are covered with an upper soil layer 11, a sandstone layer 12, a waterproof layer 13 and a lower soil layer 14. The upper soil layer 11, sandstone layer 12. The waterproof layer 13 and the lower soil layer 14 are laid from top to bottom, the thickness of the upper soil layer 11 is 200 mm, the thickness of the sand and gra...

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Abstract

The invention relates to a sewage treatment system for water shortage cities and a storage and advanced treatment method of sewage and rainwater, belonging to the technical field of water treatment. The system comprises a pretreatment station house, stabilization ponds, a drainage and irrigation station house and artificial wetlands, wherein the stabilization ponds are divided into an anaerobic pond, a facultative pond, a primary aquatic plant pond, a secondary aquatic plant pond, a primary aquatic animal pond and a secondary aquatic animal pond; the artificial wetlands are constructed around the stabilization ponds and divide each of the stabilization ponds; and a culvert pipe passes through the space below the artificial wetlands among the pretreatment station house, the stabilization ponds and the drainage and irrigation station house to enable the pretreatment station house, each stabilization pond and the drainage and irrigation station house to be sequentially connected in series. Biological floras, planted aquatic plants or cultured aquatic animals are respectively put in each stabilization pond, and sewage and rainwater sequentially enter each stabilization pond to be purified. The invention has the advantages of low manufacturing cost and operating cost and easy maintenance and can be used for carrying out effective and reliable sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and relates to a sewage treatment system and a method for purifying sewage by using the sewage treatment system. Background technique [0002] In recent years, with the improvement of people's living standards in our country, the demand for water has also increased greatly, and water pollution has become more serious, making more and more cities face the problem of water shortage. Sewage is a stable fresh water resource for cities. The practice of domestic and foreign sewage resource utilization shows that the utilization of reclaimed water is an indispensable measure to save water and reduce pollution and maintain a healthy water cycle, and it is one of the main outlets for up-to-standard sewage. In recent years, stabilizing ponds and artificial wetlands have gradually become new technologies for urban sewage treatment. Stabilization pond is a general term for biological treatment struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCY02W10/33Y02W10/37
Inventor 霍明昕边德军潘艳秋田曦
Owner NORTHEAST NORMAL UNIVERSITY
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