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Polychlorinated sodium aluminosilicate phosphate flocculant and preparation method thereof

A polychlorinated sodium silicoaluminophosphate and flocculant technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve problems such as performance defects and poor stability of PASC series flocculants , to achieve the effect of easy storage, good flocculation effect and short flocculation time

Inactive Publication Date: 2020-02-11
仇明华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to: solve the problems of performance defects and poor stability of PASC series flocculants in the existing market PAC, and develop a high-quality flocculant and its preparation method for the drinking water industry in my country

Method used

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  • Polychlorinated sodium aluminosilicate phosphate flocculant and preparation method thereof
  • Polychlorinated sodium aluminosilicate phosphate flocculant and preparation method thereof
  • Polychlorinated sodium aluminosilicate phosphate flocculant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Take 3 parts of aluminum sulfate and 55 parts of aluminum chloride, put them into a container, add 150ml of pure water, stir and mix for 30 minutes to get 150ml of solution A, and keep it for later use;

[0021] 2. Take 20 parts of sodium carbonate, 10 parts of sodium silicate, and 20 parts of sodium phosphate, add them into 150ml of pure water, stir and mix for 30 minutes to obtain 150ml of solution B, and keep it for later use;

[0022] 3. Add the prepared 150ml solution B to the prepared 150ml solution A, and stir while adding it. The stirring speed is maintained at 350-500 rpm, and the stirring can be stopped when the pH value reaches 3.5-4.5;

[0023] 4. Send the mixed solution of solution B and solution A into the aging tank and let it age for 8 hours.

Embodiment 2

[0025] 1. Take 1 part of aluminum sulfate and 40 parts of aluminum chloride, put them into a container, add 150ml of pure water, stir and mix for 30 minutes to get 150ml of solution A, and keep it for later use;

[0026] 2. Take 10 parts of sodium carbonate, 5 parts of sodium silicate, and 10 parts of sodium phosphate, add them into 150ml of pure water, stir and mix for 30 minutes to obtain 150ml of solution B, and keep it for later use;

[0027] 3. Add the prepared 150ml solution B to the prepared 150ml solution A, and stir while adding it. The stirring speed is maintained at 350-500 rpm, and the stirring can be stopped when the pH value reaches 3.5-4.5;

[0028] 4. Send the mixed solution of solution B and solution A into the aging tank and let it age for 8 hours.

Embodiment 3

[0030] 1. Take 5 parts of aluminum sulfate and 60 parts of aluminum chloride, put them into a vessel, add 150ml of pure water, stir and mix for 30 minutes to obtain 150ml of solution A, and keep it for later use;

[0031] 2. Take 5 parts of sodium carbonate, 10 parts of sodium silicate, and 15 parts of sodium phosphate, add them into 150ml of pure water, stir and mix for 30 minutes to obtain 150ml of solution B, and keep it for later use;

[0032] 3. Add the prepared 150ml solution B to the prepared 150ml solution A, and stir while adding it. The stirring speed is maintained at 350-500 rpm, and the stirring can be stopped when the pH value reaches 3.5-4.5;

[0033] 4. Send the mixed solution of solution B and solution A into the aging tank and let it age for 8 hours.

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Abstract

According to the invention, polychlorinated sodium aluminosilicate phosphate is a novel inorganic polymeric flocculant; the invention belongs to the technical field of drinking water and sewage treatment; based on the problems of low flocculation speed, small flocculation particles, poor low-temperature flocculation effect, no flocculation effect on special water systems, high cost for synthesizing high-quality products by using chemical intermediate raw materials and like of the existing inorganic macromolecule flocculant poly aluminium chloride (PAC) for drinking water treatment and problemsof incapability of being commercialized and the like of poly-aluminum silicate chloride due to poor stability, a novel inorganic macromolecule polymer flocculant with a three-dimensional network structure containing a -O-P-O-Al-O-Si-O- bond is obtained by using aluminum chloride, sodium phosphate, sodium silicate and part of a regulator as raw materials through chemical synthesis at a normal temperature under a normal pressure; and the flocculant disclosed by the invention is environment-friendly in preparation process, conventional and easily available in raw materials, low in equipment investment, easy to control in operation, stable in structure and property, and superior to PAC or PASC in performance and effect, and can be used for various drinking water treatment and sewage treatment.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a polysodium silicoaluminum phosphate chlorinated flocculant and a preparation method thereof. Background technique [0002] In the water treatment industry, whether it is drinking water treatment or sewage treatment, the use of various flocculants is inseparable. At present, polyaluminum chloride (PAC) is the most widely used flocculant for drinking water treatment on the market, but with the long-term use and research of PAC, polyaluminum chloride flocculant has many advantages compared with alum, but There are also some shortcomings, such as the PAC produced as raw material with aluminum-containing ore or waste aluminum slag, not only the production process is seriously polluted, but also the heavy metal content in the polyaluminum chloride product is relatively high, and there are many water-insoluble substances. For drinking water treatment, it will produce secondar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
CPCC02F1/5236
Inventor 仇明华
Owner 仇明华
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