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Coagulant aid for sewage treatment and preparation method of coagulant aid

A technology of sewage treatment and coagulant aid, which is applied in water/sewage treatment, degassed water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problem that it is difficult to obtain better water treatment effect and reduce the probability of particle collision , Raw water turbidity reduction and other issues, to achieve the effect of strong adaptability, easy addition, and reduced consumption

Inactive Publication Date: 2018-04-13
ANHUI RUIZHIXIN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the reduction of raw water turbidity reduces the probability of particle collision during the flocculation process of water treatment, which affects the progress of the flocculation process.
Therefore, the treatment of low temperature, low turbidity, and low alkalinity water is a difficult problem in the water treatment field. Even if the dosage of coagulant is increased, it is difficult to obtain better water treatment effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A coagulant aid for sewage treatment, according to the mass components, its formula is as follows: 12 parts of cationic polyacrylamide, 20 parts of polyaluminum chloride, 2 parts of modifier, 5 parts of disinfectant, defoamer 8 parts, 5 parts of alum, 18 parts of oxalic acid and 20 parts of distilled water.

[0020] Preferably, the modifier is a mixture of potassium permanganate and sodium silicate.

[0021] Preferably, the polyacrylamide and oxalic acid are pulverized to 200 mesh, and the defoamer is used together with metal soap, silicone oil and silicon dioxide.

[0022] Preferably, the polyaluminum chloride raw material is an aqueous solution with a pH value of 3 and a concentration of 10%.

[0023] A preparation method for a coagulant aid for sewage treatment, comprising the steps of:

[0024] S1. Weigh each component by mass and place it separately for later use;

[0025] S2, heating the distilled water, the heating temperature is 45 degrees Celsius, then add h...

Embodiment 2

[0029] A coagulation aid for sewage treatment, according to the mass components, its formula is as follows: 25 parts of cationic polyacrylamide, 30 parts of polyaluminum chloride, 8 parts of modifier, 9 parts of disinfectant, defoamer 12 parts, 5 parts of alum, 25 parts of oxalic acid and 23 parts of distilled water.

[0030] Preferably, the modifying agent is potassium permanganate.

[0031] Preferably, the polyacrylamide and oxalic acid are pulverized to 200 mesh, and the defoamer is used together with metal soap, silicone oil and silicon dioxide.

[0032] Preferably, the polyaluminum chloride raw material is an aqueous solution with a pH value of 4 and a concentration of 10%.

[0033] A preparation method for a coagulant aid for sewage treatment, comprising the steps of:

[0034] S1. Weigh each component by mass and place it separately for later use;

[0035] S2, heating the distilled water, the heating temperature is 45 degrees Celsius, then add half of the distilled wa...

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PUM

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Abstract

The invention discloses a coagulant aid for sewage treatment. The coagulant aid is prepared from the following components in parts by mass: 12-25 parts of cationic polyscrylamide, 20-30 parts of polyaluminum chloride, 2-8 parts of modifier, 5-9 parts of disinfectant, 8-12 parts of antifoaming agent, 5-7 parts of alum, 18-25 parts of oxalic acid and 20-23 parts of distilled water. According to thecoagulant aid for sewage treatment and the preparation method of the coagulant aid disclosed by the invention, the cationic polyscrylamide acts to gather oil and suspended solids in sewage; the polyaluminum chloride realizes a function of enabling the suspended solids in the sewage to get larger so as to facilitate removal of the oil and the suspended solids. The coagulant aid has strong adaptability to the raw water quality change, and realizes a remarkable treatment effect on the raw water with low temperature, low turbidity and low alkalinity. Efficiency of an coagulant can be enhanced, the consumption of the coagulant is reduced, and the water treatment cost is lowered. The coagulant aid is easy to add without needing special equipment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a coagulation aid for sewage treatment. At the same time, the invention also relates to a preparation method of a coagulant aid for sewage treatment. Background technique [0002] The discharge of sewage has caused serious pollution to the environment. Some sewage discharges not only pollute surface water, but also pollute underground water sources, and even affect people's life and life safety. [0003] There are many known sewage treatment methods, including biological treatment methods and physical treatment methods. The biological method takes a long time to treat, and the speed is slow (for example, it takes 4 to 5 days for paper mills to treat papermaking sewage), and the efficiency is low; the material method has high treatment costs, and the treatment is not thorough, and the discharge standard cannot be met. With the acceleration of urbanizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/52C02F1/50C02F1/20
CPCC02F1/20C02F1/50C02F1/5236C02F1/56
Inventor 刘永飞吴义成李夫
Owner ANHUI RUIZHIXIN INFORMATION TECH CO LTD
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