Water treatment composite flocculant

A composite flocculant and water treatment technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of insufficient performance of the agent, incomplete performance of the flocculant, and difficulty in controlling the dosing time. The effect of simplifying the dosing equipment and fast precipitation

Inactive Publication Date: 2008-12-24
郭振岳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of the one-time dosing process of the mixed chemical solution are: insufficient performance of the chemical agent, large dosage, easy to cause waste, and produce secondary pollution
For the batch-dosing process, it is difficult to control the dosing time, and there are also disadvantages such as the inability of t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] Aluminum salt 40-60%, iron salt 15-30%, polyacrylamide 1-10%, starch 1-5%.

[0021] The invention adopts the spray compounding method to mix 50 liters of aluminum sulfate and 20 liters of iron sulfate mixed solution, 5 kilograms of solid non-ionic polyacrylamide powder, 2.5 kilograms of starch, mix, stir and mix, and then spray dry to obtain the Invented multi-layer composite coagulant for water treatment. The average particle size of the composite flocculant particles is 0.1-3mm. Since the sulfate is coated on the outer layer of the polyacrylamide, when the flocculant of the present invention is put into sewage for sewage treatment, the polyacrylamide starts to dissolve 1 minute after the sulfate is dissolved.

Example Embodiment

[0022] Example 2

[0023] Mix 40 liters of aluminum chloride and 15 liters of polyferric sulfate mixed solution, 1 kg of cationic polyacrylamide powder, 1 kg of starch, mix, stir and mix, and then spray dry to obtain the water treatment multi-layered water treatment of the present invention Compound coagulant. The average particle size of the composite flocculant particles is 0.1-3mm.

Example Embodiment

[0024] Example 3

[0025] Mix 60 liters of aluminum chloride and 30 liters of polyferric sulfate mixed solution, 10 kilograms of cationic polyacrylamide powder, 5 kilograms of starch, mix, stir and mix, and then spray dry to obtain the water treatment multi-layered water treatment of the present invention Compound coagulant. The average particle size of the composite flocculant particles is 0.1-3mm.

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PUM

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Abstract

The invention relates to a granular compound flocculant for water treatment compositely comprising a bilayer or multilayer flocculant. The components according to the weight percentage are as follows: aluminum salt 40%-60%, ferric salt 15%-30%, polyacrylamide 0.5%-10% and starch 1%-15%. The flocculant of the invention integrates the characteristic of both inorganic and organic flocculants, improves the dosing mode of the medicament, increases the action efficiency of the medicament by using the multilayer sustained release structure and improves the efficiency of the medicament.

Description

technical field [0001] The invention relates to a water treatment flocculant, in particular to a water treatment composite flocculant. Background technique [0002] Coagulation and sedimentation of chemical agents is a commonly used method in water treatment technology. The method has the characteristics of low investment, small land occupation, low operating cost and wide adaptability. In the coagulation and sedimentation technology of water treatment, the delivery method of chemical agents is one of the key technologies. With the improvement of water treatment requirements, a combination of various flocculants is often used in the chemical dosing process to meet the water quality requirements. The main disadvantages of the one-time dosing process of the mixed chemical solution are: insufficient performance of the chemical agent, large dosage, easy to cause waste, and produce secondary pollution. For the process of adding chemicals in batches, there are disadvantages suc...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 徐立群刘希邈
Owner 郭振岳
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