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Sewage treatment method suitable for upgrading and reconstruction of sewage plant

A sewage treatment method and sewage plant technology, applied in water/sludge/sewage treatment, water/sewage multi-stage treatment, chemical instruments and methods, etc., can solve the problem of phosphorus removal, suspended solids removal, and chemical dosing costs that cannot be solved at the same time advanced questions

Inactive Publication Date: 2018-01-16
SUZHOU UNIV OF SCI & TECH
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Problems solved by technology

[0006] The two major problems of phosphorus removal and suspended matter removal in the original process cannot be solved at the same time, and the cost of dosing is high

Method used

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  • Sewage treatment method suitable for upgrading and reconstruction of sewage plant

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] refer to figure 1 , a sewage treatment method suitable for the upgrading and transformation of sewage plants, including: using the original process of sewage treatment plants: water inlet→coarse screen→fine screen→A settling tank→biochemical reaction tank→B settling tank→disinfection tank→water outlet Based on this, a combined process of a high-efficiency sedimentation tank + vertical fiber filter cloth filter is added between the B sedimentation tank and the disinfection tank of the original process.

[0028] The high-efficiency sedimentation tank includes a first mixing tank, a second sed...

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Abstract

The invention relates to a sewage treatment method suitable for upgrading and reconstruction of a sewage plant. The method comprises an original process of the sewage treatment plant and an efficientsedimentation tank and vertical fiber filter cloth filter combined process added between a sedimentation tank B and a disinfection tank of the original process, wherein the original process is based on water inlet, coarse screen, fine screen, sedimentation tank A, biochemical reaction tank, sedimentation tank B, disinfection tank and water outlet; an efficient sedimentation tank comprises a firstmixing tank, a second sedimentation tank and a water detector; 10-18 mg / L of an iron chloride and ferrous chloride mixture reagent is added to the first mixing tank to react with sewage with stirring;the sewage stays in the first mixing tank for 3-4 min. With the adoption of the sewage treatment method suitable for upgrading and reconstruction of the sewage plant, two problems of phosphorus removal and suspended solid removal in the original process can be solved simultaneously, and the dosage cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of sewage plants, in particular to a sewage treatment method suitable for upgrading and transforming sewage plants. Background technique [0002] With the continuous development of industry, the types and quantities of wastewater have also increased rapidly, and water pollution has seriously threatened human health and safety. The composition of industrial wastewater is complex, containing a variety of different pollutants, and the pollutants and concentrations in various industrial wastewater are quite different, making it difficult to treat. [0003] Nowadays, the environmental pressure is becoming more and more serious, the applicable discharge standards of various industries are continuously improving, and the requirements for the reuse rate of water are becoming more and more stringent. For example, the "National Environmental Protection "Twelfth Five-Year" Plan" clearly pointed out that we should thor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 吴鹏王昕竹魏凡凯沈耀良徐乐中
Owner SUZHOU UNIV OF SCI & TECH
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