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Method for preparing demulsification clarifier

A purifying agent and demulsification technology, used in chemical instruments and methods, chemical/physical processes, oxidized water/sewage treatment, etc., can solve the problems of high cost, complex process, and high difficulty in operation, and achieve low investment and good effect. Effect

Inactive Publication Date: 2008-01-30
SHANGHAI ZHONGCHENG ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The process is more complicated, the efficiency is lower, and the cost is higher;
[0004] 2. Large investment, difficult operation, and many safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A kind of demulsification purifying agent, is made up of following raw material of percentage by weight:

[0021] Sewage net [Al 2 (OH) n Cl(6-n)]myF 55%

[0022] Polyferric sulfate [Fe 2 (OH) n (SO 4 ) 3-n / 2 ] m 14%

[0023] Polyaluminum Chloride [Al 2 (OH) n Cl 6-n ] m 10%

[0024] Anhydrous Calcium Chloride CaCl 2 6%

[0025] Ferric chloride FeCl 3 15%;

[0026] A kind of preparation method of demulsification purifying agent, its steps are:

[0027] The first step. Put the sewage, polyferric sulfate and polyaluminum chloride into the mixer, then pour in anhydrous calcium chloride and add 50% water of the sum of the four raw materials, and fully stir. The stirring speed is per minute 60 rpm, to ensure that the solid components are completely dissolved, and keep for 2 hours;

[0028] Step 2. Add ferric chloride and continue to stir at a stirring speed of 60 rpm for half an hour. After shutting dow...

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PUM

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Abstract

The invention relates to a demulsification purifying agent and is characterized in that the purifying agent is composed by the components and proportions: 2-68 percent of sewage purifier, 2-37 percent of polymeric ferric sulfate, 5-45 percent of aluminum polychlorid, 6-57 percent of calcium chloride, and 19-47 percent of ferric chloride. The preparation steps are that: sewage purifier, polymeric ferric sulfate and aluminum polychlorid are dumped into a mixer and then calcium chloride and last water of 50 percent of the four raw materials are added; the mixture is stirred fully at a rate of 60 rpm for two to three hours to ensure the solid components are completely dissolved; the ferric chloride is added and the mixture is mixed continuously but at a rate of 50-80 rpm for half an hour to one hour; the mixture is filtered and packed into package buckles after the mixer is stopped for six to ten hours. The invention has excellent sewage treatment effect with low investment.

Description

technical field [0001] The invention relates to a preparation method of a demulsification purifying agent, which belongs to the technical field of environmental protection, and relates to sewage treatment in the automobile manufacturing industry and the mechanical processing industry. Background technique [0002] In the automobile manufacturing industry and mechanical processing industry, a large number of emulsions and cleaning agents need to be used in the production process. Their chemical structure will cause major pollution factors to the environment. Generally, high-concentration organic wastewater is treated with calcium chloride and Oxidizing agents, i.e. hydrochloric acid and sulfuric acid, have the disadvantages of: [0003] 1. The process is more complicated, the efficiency is lower, and the cost is higher; [0004] 2. The investment is large, the operation is difficult, and there are many safety marks. Contents of the invention [0005] The purpose of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/42C02F1/52C02F1/28C02F1/70C02F1/72B01F17/00C09K23/00
Inventor 余国炎
Owner SHANGHAI ZHONGCHENG ENVIRONMENTAL SCI & TECH
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