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A high-efficiency phosphorus removal equipment and method for using the same

A high-efficiency, phosphorus-removing agent technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as increased investment costs, high operating costs, and large equipment volume, and achieve filtration Short reaction time, good phosphorus removal effect, and small footprint

Inactive Publication Date: 2011-12-28
江苏艾特克环境工程设计研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, biological phosphorus removal conditions are harsh and the effect is average, which often cannot meet the treatment requirements. Electrolytic phosphorus removal and membrane reactor phosphorus removal have the disadvantage of high operating costs and are not widely used.
The patent CN101913684 mentions the magnetic flocculation enhanced sewage dephosphorization reactor and its treatment method. Through chemical and physical means, the processes of dosing, coagulation, precipitation and dephosphorization are carried out in one pool. The whole system saves the follow-up sedimentation tank and greatly reduces the The equipment occupies an area, but the entire reaction process is intermittent operation, and the addition of chemicals is a step-by-step operation. The entire process takes more than 30 minutes. For the case of large processing volume, the required equipment volume is large, and the investment cost Increase

Method used

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  • A high-efficiency phosphorus removal equipment and method for using the same
  • A high-efficiency phosphorus removal equipment and method for using the same
  • A high-efficiency phosphorus removal equipment and method for using the same

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The phosphorus removal method of the invention has a remarkable effect on the treatment of phosphorus-containing sewage in a certain chemical plant. The sewage before treatment is the waste water that has undergone secondary biochemical treatment. The specific indicators are as follows:

[0021]

[0022] Water quality indicators that cannot meet the third-level discharge standards stipulated in the national "Integrated Wastewater Discharge Standards". The present invention designs a high-efficiency dephosphorization device with a diameter of 0.5m and a height of 4.1m. First, the sewage is driven into the water inlet pipe through the sewage pump, and at the same time, the phosphorus removal agent storage tank and the alkali agent storage tank are respectively connected with the dosing pump. Connect, pump in phosphorus removal agent and alkaline agent; then when the sewage mixed with the agent flows through the static mixer, use the air connected to the static mixer fo...

Embodiment 2

[0026] The sewage of a chemical factory in Changzhou is mainly composed of domestic sewage and industrial sewage

[0027] Raw water index

[0028]

[0029] First, the sewage is driven into the water inlet pipe through the sewage pump, and at the same time, the phosphorus removal agent storage tank and the alkali agent storage tank are connected to the dosing pump respectively, and the phosphorus removal agent and alkaline agent are pumped in; then the sewage mixed with the agent is When passing through the static mixer, use the air connected to the static mixer to carry out strong stirring. After staying and stirring for 36S, the phosphorus component in the sewage and the phosphorus removal agent are fully mixed and reacted to form larger floc particles; after thorough flocculation The reaction mixture enters the phosphorus remover through the water inlet pipe at the bottom of the phosphorus remover, and the floc particles produced are reaction products rich in phosphorus. ...

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Abstract

The invention discloses a high-efficiency phosphorus removal device, which comprises a water inlet pipe, a static mixer, a phosphorus remover, and a clean water tank sequentially connected by pipelines; the water inlet pipe is provided with a sewage pump, and the sewage pump is connected to the static mixer The water inlet pipe between them communicates with the storage tank of phosphorus removal agent and the storage tank of alkali agent in turn through pipelines; the water inlet pipe is provided with a static mixer; the phosphorus removal device is provided with a suspension filter layer. The high-efficiency dephosphorization device disclosed by the invention and its use method have the advantages of small footprint, short filtration reaction time, continuous treatment in the whole process of flocculation, sedimentation and filtration, and good phosphorus removal effect.

Description

[0001] technical field [0002] The invention belongs to the field of sewage treatment, and in particular relates to a high-efficiency chemical and physical enhanced phosphorus removal device and a use method thereof. Background technique [0003] According to the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002) promulgated by the state, the first-level A discharge standard of total phosphorus (calculated as P) in urban sewage plants is: 0.5ppm, and the first-level B standard is: 1.0ppm . Generally, there are many domestic phosphorus removal methods, such as biological phosphorus removal, electrolytic phosphorus removal, and membrane reactor phosphorus removal. Generally, biological phosphorus removal has strict requirements and general effect, which often cannot meet the treatment requirements. Electrolytic phosphorus removal and membrane reactor phosphorus removal have the disadvantage of high operating costs and are not widely used. The p...

Claims

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Application Information

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IPC IPC(8): C02F1/58
Inventor 吴智仁徐畅蒋素英
Owner 江苏艾特克环境工程设计研究院有限公司