Preparation method of high-efficiency phosphorus-removal coagulant

A coagulant and high-efficiency technology, used in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water pollutants, etc., can solve problems such as poor phosphorus removal effect, achieve good phosphorus removal effect, increase particle size, The effect of improving the settling effect

Inactive Publication Date: 2019-05-28
北京尚水清源水处理技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a preparation method of high-efficiency phosphorus removal coagulant to solve the technical problem of poor phosphorus removal effect in the prior art

Method used

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Embodiment Construction

[0015] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0016] The present invention is described more specifically by way of example in the following paragraphs.

[0017] Include the following steps:

[0018] 1) Add a certain volume of nano-Al13 solution (Al ion concentration is 0.2mol / L) into the container; the container is a three-necked flask.

[0019] 2) Under high-shear conditions, use a constant-current peristaltic pump to slowly add a certain volume of organic coagulant aid solution to the container, and then add an appropriate amount of deionized water to make the Al ion concentration 0.1mol / L;

[0020] 3) After stirring for 24 hours, a coagulant for removing phosphorus is obtained.

[0021] The temperature of the nano-A...

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Abstract

The invention discloses a preparation method of a high-efficiency phosphorus-removal coagulant, comprising the following steps: 1) adding a certain volume of a nano AI13 solution (AI ion concentrationis 0.2 mol/L) to a container ; 2) under high shear condition, slowly and dropwise adding a certain volume of an organic coagulant aid solution to the container by using a constant-flow peristaltic pump, and then adding appropriate amount of deionized water to make the AI ion concentration be 0.1 mol/L; 3) after stirring for 24 h, obtaining the phosphorus-removal coagulant. According to the invention, the amount of the coagulant aid is appropriately increased, exertion of net trapping effect is facilitated while the adsorption bridging effect is strengthened. Coagulant aid molecules can make tiny colloids form large floccules to a certain extent, so the presence of the coagulant aid is beneficial to forming a high polymer with a spatial structure, increasing the particle size of flocs, andimproving the sedimentation effect, thereby achieving the good phosphorus-removal effect.

Description

technical field [0001] The invention relates to the technical field of phosphorus removal, in particular to a preparation method of a high-efficiency phosphorus removal coagulant. Background technique [0002] With the rapid development of my country's economy, more and more urban domestic sewage rich in nitrogen, phosphorus and other elements are discharged into rivers, lakes and seas, making the eutrophication of water bodies increasingly serious. A large number of studies have shown that eutrophication may occur when the total phosphorus (TP) concentration in water reaches 0.02mg / L. On the other hand, the activated sludge method commonly used in my country's urban sewage treatment plants is not effective in removing total phosphorus, and the concentration of total phosphorus in the effluent often cannot meet the national discharge standards. In order to curb the increasingly serious problem of water eutrophication and reduce the concentration of total phosphorus in sewag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F101/10
Inventor 刘锟虞红波刘昕辛胜
Owner 北京尚水清源水处理技术有限公司
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