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Technology of treating sewage

A sewage treatment and sewage technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of reaction efficiency, treatment efficiency has not been fundamentally improved, and the industrialization of sewage treatment cannot be formed , complete set, investment cost per ton and increase in operating cost, etc., to achieve excellent nitrogen and phosphorus removal effects, excellent BOD5 removal, and operating cost savings

Inactive Publication Date: 2005-06-08
杨源 +1
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Problems solved by technology

[0003] At present, the treatment of sewage has been using a similar process route, such as the traditional activated sludge process, developed to the A / O process and A 2 / O process, the essence is to increase the anaerobic biological treatment and anaerobic tank, in the further treatment of BOD 5 、COD cr At the same time as SS and SS, the effect of phosphorus and nitrogen removal is increased, but the investment cost per ton and operating cost will also increase. Moreover, the treated sewage needs advanced treatment to meet the requirements of reclaimed water reuse. There are few equipments, mainly relying on the pool body , so it is impossible to form industrialization and complete sets of sewage treatment, and its reaction efficiency and treatment efficiency have not been fundamentally improved. Therefore, there is a breakthrough reduction in the investment per ton of sewage treatment and the cost per ton of sewage treatment

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  • Technology of treating sewage
  • Technology of treating sewage

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Embodiment Construction

[0021] see figure 1 and figure 2 The sewage is pumped into the cyclone separator 2 through the pump 1. After the solid-liquid separation of the sewage in the cyclone separator 2, the sewage enters the anaerobic tower 3 for anaerobic biochemical reaction, and releases phosphorus and denitrification in the anaerobic tower 3. , to remove degraded organic matter, and then the sewage enters the biofiltration membrane tower 4 for aerobic biochemical reactions to degrade organic matter, biological phosphorus absorption, and nitrification denitrification. The biofiltration membrane tower 4 relies on negative pressure ventilation to supply oxygen. Part returns to the entrance of anaerobic tower 3 with circulation pump 5 and enters the anaerobic tower 3 to continue to participate in the anaerobic biochemical reaction. Part of the coagulant with a concentration of 1-500ppm is added to the mixer 6 and enters the sedimentation tank 7 for dephosphorization, removal of organic matter and h...

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Abstract

A ZATL technology for treating sewage includes such steps as solid-liquid separation, anaerobic biochemical reaction in anaerobic tower while releasing P and denitrating, aerobic biochemical reaction in biomembrane filtering tower, adding coagulane, depositing, and solid-liquid separation for removing P, organic substances and heavy metals. Its advantages are high effect and low cost.

Description

technical field [0001] The invention relates to a sewage treatment process, in particular to a sewage treatment ZATL process. Background technique [0002] Sewage treatment methods are composed of physical treatment methods, chemical treatment methods, biochemical methods and various technological methods. With the continuous improvement of sewage pollutant treatment requirements, the treatment process is getting longer and longer, and the investment per ton of sewage treatment is getting higher and higher. , the cost of treatment is getting higher and higher, and the area of ​​the treatment plant is getting bigger and bigger. In order to solve the shortcomings of the original sewage treatment process, innovative new sewage process and new technology are necessary for the market. [0003] At present, the treatment of sewage has been using a similar process route, such as the traditional activated sludge process, developed to the A / O process and A 2 / O process, the essence i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F9/14
Inventor 杨源曾智勇
Owner 杨源
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