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Preparation method of charge positive charge filter material and application thereof

A technology of filter material and positive charge, applied in filtration and separation, separation methods, chemical instruments and methods, etc., can solve the problems of high cost, high manufacturing cost, unsuitable for wide application, etc., and achieve low cost and low cost of wastewater treatment , the effect of easy reprocessing

Inactive Publication Date: 2011-05-11
无锡强工机械工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Filtration with filter materials is a commonly used treatment process in wastewater treatment at this stage. The treatment capacity and filtration performance of ordinary filter materials in the prior art depend on the size of the filter aperture. In order to improve the filtration accuracy, high-density, fine Pore ​​size filter material, this kind of material has high manufacturing cost, and it needs to be treated separately after being discarded, the cost is higher, and it is not suitable for wide application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] To prepare a positive charge coating solution:

[0020] (1) Weigh 3g of polyvinyl alcohol; water, 97g; adjust the conductivity of the water at about 200μs, and the temperature at about 90°C;

[0021] (2) Put water into the container, then slowly add the weighed polyvinyl alcohol while stirring, and continue stirring for 10 minutes to prepare a positively charged coating solution.

[0022] The preparation method of described positively charged filter material comprises the steps:

[0023] Material selection and cleaning treatment: select old cotton cloth, wool, hemp, chemical fiber, etc. that meet the requirements, and carry out washing, decolorization, expansion and crushing treatment, control the length of the fiber to no more than 20cm, and then wash it with water, and set it aside;

[0024] Soaking and charging: Soak the processed raw materials in the above prepared positive charge coating solution, the liquid level of the coating solution is about 5cm above the upp...

Embodiment 2

[0028] To prepare a positive charge coating solution:

[0029] (1) Take chitosan polymer 5g; Water 95g; Regulate the conductivity of water at about 200μs, and the temperature at about 40°C;

[0030] (2) Put water into the container, then slowly put in the weighed chitosan polymer while stirring, and continue stirring for 10 minutes to prepare a positively charged coating solution.

[0031] The preparation method of described positively charged filter material comprises the steps:

[0032] Material selection and cleaning treatment: select the waste cotton cloth that meets the requirements, carry out crushing treatment, control the fiber length not to exceed 20cm, then wash it with water, and set it aside;

[0033] Soaking and charging: Soak the treated raw materials in the positively charged coating solution prepared above. The liquid level of the coating solution is about 5cm higher than the upper surface of the raw materials. Add 1% quaternary ammonium salt cross-linking age...

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PUM

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Abstract

The invention relates to a preparation method of a charge positive charge filter material and an application thereof; the preparation method of the charge positive charge filter material comprises the steps of cleaning treatment, immersion charging and dehydration drying; the filter material can be prepared into linear structure, cloth-like structure, rope-like structure, flocculent structure andthree-dimensional structure, and can be used in a filter device. Due to the adoption of chemical fiber substance as preparation materials which are easy for aftertreatment and are low in cost and thecost for treating waste water is also low, by coating a coating material with positive charge on the prepared filter material and using the characteristic of positive charge, oil hydrocarbon, such asbenzene, toluene, ethylbenzene, dimethylbenzene compounds, and other anion suspension substances, in various industrial and domestic waste water can be effectively removed, after absorption is saturated, recycling can be realized by only removing filter elements and pollutants, the saturated filter elements can be crushed to be organic fertilizers, thus having great economic benefit and social benefit.

Description

technical field [0001] The invention relates to a preparation method and application of a positively charged filter material. Background technique [0002] With the development of society and the improvement of industrialization, many industries will produce a large amount of wastewater in daily production and life, such as oil field reinjection water, car washing water, degreasing cleaning water in surface engineering industry, petroleum refining, hardware processing industry, shipbuilding, etc. Industry, oil and water in environmental protection industry, urban domestic sewage, etc. These sewage need to be pulverized, otherwise it will bring great harm to the environment. Filtration with filter materials is a commonly used treatment process in wastewater treatment at this stage. The treatment capacity and filtration performance of ordinary filter materials in the prior art depend on the size of the filter aperture. In order to improve the filtration accuracy, high-density,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/16
Inventor 强光初
Owner 无锡强工机械工业有限公司