Fiber material with heavy metal removing and sterilizing functions and application of fiber material

A fiber material, sterilization and disinfection technology, applied in the field of fiber materials, can solve the problems of easy breeding of activated carbon bacteria, frequent replacement of activated carbon, high regeneration costs, etc., achieve the effect of good drinking water protection, simplify maintenance process and operation, and reduce the effect of treatment

Inactive Publication Date: 2012-01-04
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the generally heavy pollution of water sources in our country, activated carbon will be saturated and invalid soon after use. When the water pollution is serious, activated carbon can only run for a few weeks.
The adsorption performance of activated carbon can be restored through regeneration, but the replacement of activated carbon is frequent and the cost of regeneration is high; moreover, during use, activated carbon is very easy to breed bacteria and cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The pretreated water is natural river water, and 20 kg of the fiber material is put into a reactor made of a PVC pipe with a diameter of 160 mm and a length of 1000 mm. The reactor is upright, the treated water flows freely from top to bottom, and the flow rate is stable at 0.61m 3 / h, under the condition of continuous operation for 20 days, the device's removal rate of heavy metals in natural river water reached 97%, the removal rate of organic pollutants reached 98%, and the killing rate of microorganisms reached 99.9%.

Embodiment 2

[0035] The pretreated water is ground water, and 20 kg of the fibrous material is put into a reactor made of a PVC pipe with a diameter of 160 mm and a length of 1000 mm. The reactor is upright, the treated water flows freely from top to bottom, and the flow rate is stable at 0.61m under the condition of continuous operation for 20 days 3 / h, the removal rate of heavy metals in groundwater by the device reaches 98%, the removal rate of organic pollutants reaches 99%, and the microbial killing rate reaches 99.9%.

Embodiment 3

[0037] The pretreated water is the outlet water of the municipal sewage treatment plant, and 20 kg of the fiber material is put into a reactor made of a PVC pipe with a diameter of 160 mm and a length of 1000 mm. The reactor is upright, the treated water flows freely from top to bottom, and the flow rate is stable at 0.46m under the condition of continuous operation for 20 days 3 / h, the removal rate of heavy metals in the outlet water of the municipal sewage treatment plant reached 94%, the removal rate of organic pollutants reached 96%, and the killing rate of microorganisms reached 98%.

[0038] After testing, the effect of removing heavy metals from the above fiber materials is obtained, as shown in the following table:

[0039] Fiber removal of heavy metal ions

[0040] Types of heavy metal ions

Possible impact on people

Removal rate

HG

Movement disorders, sensory disorders, mental disorders, etc.

97％

Arsenic

Loss of appetite, stomach pain, nausea, malignant tumor...

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PUM

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Abstract

The invention provides a fiber material with heavy metal ion removing and sterilizing functions, relatively large specific surface area and safety in use. The fiber material comprises matrix and groups fixed on the surface of the matrix through chemical bonds, wherein the matrix material comprises vinyl-acrylic polymer and vinyl-allylamine polymer; and the groups on the surface of the matrix are one or more of chlorine groups, quaternary ammonium salts and triazine groups. The fiber material is used for purifying water by the principle that: when heavy metal pollutants, organic pollutants and bacteria are close to the surface of the matrix, the heavy metal ions are reacted with carboxyl, the organic pollutants are adsorbed by the matrix, and the bacteria are caught and killed by the chlorine groups. The fiber material can be widely applied in the fields of water treatment and water purification.

Description

Technical field [0001] The invention relates to a fiber material and the application of the fiber material, and specifically designs a fiber material with the functions of removing heavy metals and sterilizing and disinfecting, and the application of the fiber material in a water purification process. Background technique [0002] Domestic drinking water treatment technology is mainly based on filtration, which is divided into membrane filtration and adsorption filtration. Due to the simple filtration process of membrane filtration technology, the operation is relatively convenient, and no secondary pollution is introduced. In particular, reverse osmosis membrane treatment can filter water. For most substances, effectively guaranteeing water quality and safety is one of the effective ways. In recent years, it has been applied in the treatment of polluted surface water sources in rural areas. However, while membrane filtration removes harmful components in water, it also removes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/00D06M13/46D06M13/358B01D39/04B01J20/26C02F1/28C02F1/50D06M101/26D06M101/18
Inventor 夏东升王栋阮新潮孙磊
Owner WUHAN TEXTILE UNIV
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