Improved enhanced phosphorus removal device and phosphorus removal process

An improved and technological technology, applied in the field of improved enhanced phosphorus removal device and phosphorus removal process, can solve the problems of low load and large investment and operation cost, and achieve the effects of increasing surface load, reducing civil construction cost and improving treatment efficiency.

Active Publication Date: 2016-12-21
苏州市苏创环境科技发展有限公司
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Problems solved by technology

[0004] During the advanced treatment, the concentration of phosphorus in the effluent of the secondary sedimentation tank is higher than the national discharge standard, and it is necessary to add phosphorus removal facilities such as filter cloth filters or dosing chemicals, but the addition of chemicals requires another sedimentation tank, and the advanced treatment part needs to be treated The load is very low, and the operation cost is very high

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  • Improved enhanced phosphorus removal device and phosphorus removal process
  • Improved enhanced phosphorus removal device and phosphorus removal process
  • Improved enhanced phosphorus removal device and phosphorus removal process

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0027] The improved enhanced phosphorus removal device of the present invention is a radial flow type secondary sedimentation tank, such as Figure 1~3 As shown, it is composed of a coagulation area, a sedimentation area, a water outlet area and a mud discharge area; the coagulation area is composed of an inlet pipe 1 and an annular coagulation corridor 2, and the water inlet pipe 1 is arranged on the side wall of the secondary sedimentation tank. Connected with the annular coagulation corridor 2, the top of the annular coagulation corridor 2 is provided with a dosing pipe 10, the slope of the bottom is 10-15%, and a perforated flower wall 12 is provided at the end 1 / 3 of the annular coagulation corridor 2;

[0028] The described settling area is adjacent to the coagulation area, and is composed of a heavy settling area 3 in the lower layer and an...

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Abstract

The invention belongs to the technical field of sewage deep treatment, and specifically relates to an improved enhanced phosphorus removal device and phosphorus removal process. The process provided by the invention is mainly used for the situation that the phosphorus concentration of effluent water after a biological sewage treatment process still can not reach the standard, and is characterized in that a phosphorus removal reagent is added to influent water in a secondary sedimentation tank to enhance flocculating phosphorus removal; and an inclined plate or inclined tube is arranged in a sedimentation tank to perform mud-water separation and flocculating phosphorus removal of effluent water from a biochemical tank in the same tank, thus improving the sedimentation efficiency and the effluent water effect. The improved enhanced phosphorus removal device and phosphorus removal process are applicable to the deep phosphorus removal demand after biological treatment, improve the effluent water quality standard and lower the investment and project cost of a sewage plant.

Description

technical field [0001] The invention belongs to the technical field of advanced sewage treatment, and in particular relates to an improved enhanced phosphorus removal device and a phosphorus removal process. Background technique [0002] At present, the methods used in sewage treatment and phosphorus removal in my country are mainly divided into biological, physical and chemical methods. Among them, the chemical method adopts the method of dosing chemicals, and it is difficult to determine the dosage due to the large changes in the composition of the sewage. The physical method mainly adopts the addition of coagulant and coagulant aid to form larger pollutant particles in the water and discharge them through the sedimentation tank. This method has a low removal rate and the effluent is unstable. At present, the biological method AAO (Anaerobic-Anoxic-Oxic) is mainly used in my country to simultaneously remove nitrogen and phosphorus. [0003] The AAO synchronous denitrif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
CPCC02F1/52C02F2001/007
Inventor 于鹏飞金星何祥李希
Owner 苏州市苏创环境科技发展有限公司
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