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A multifunctional curtain for water purification

A water purification and multi-functional technology, applied in the direction of water/sewage multi-stage treatment, water pollutants, metallurgical wastewater treatment, etc., can solve multiple complex pollution and other problems, achieve flexible application forms, reduce the generation of secondary pollutants, The effect of long-term stable and high-efficiency water purification performance

Inactive Publication Date: 2018-05-11
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the severe water pollution problem in our country and it often presents the characteristics of multiple compound pollution, based on the rapid development of new high-efficiency water purification materials, the present invention develops a layered curtain-like water purification multifunctional curtain; the curtain has a single Layer or two or more combined layer structure, each group of layers is relatively independent and each layer can move relatively at different speeds; the curtain is mainly composed of filter cloth, high-strength porous sponge, activated carbon fiber, ion exchange fiber, two or A variety of materials and their composite products are made by optimizing the combination of layer modules; the curtain is selected and optimized according to the type, water volume and water quality pollution characteristics of the raw water to be treated; the multifunctional curtain has multiple functions of in-situ purification. The function of compound polluted raw water quality

Method used

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  • A multifunctional curtain for water purification
  • A multifunctional curtain for water purification
  • A multifunctional curtain for water purification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1The layer-by-layer water purification multi-functional curtain structure shown is composed of: polyester long fiber industrial filter cloth 240 (60-10) is woven with multifilament plain weave, and the weight is 240 g / square meter; the density is 22 / cm, Weft 18.8 / cm, strength N / 5*20cm radial 2162.6, weft 1082.6, elongation 32.03 longitude, weft 24.87, air permeability 36.1 liters / square meter per second, thickness 0.42 mm, used on both sides of the periphery ;Ordinary commercially available industrial polyurethane filter sponge, with a porosity of 96%, a pore size of 30PPI, and a density of 28kg / m 3 , 2 layers side by side, each layer thickness 20 mm; a company produces TK-1500 activated carbon fiber felt, with a specific surface area of ​​1400 m 2 / g, benzene adsorption value 50%, iodine adsorption value 1400mg / g, methylene blue adsorption value 220mg / g, ash content ≤ 4, average pore diameter 18~21 angstroms, carbon content 70~95%, 10 layers in parallel...

Embodiment 2

[0041] Such as figure 2 The layered bag side-by-side water purification multifunctional curtain structure shown is mainly composed of filter cloth, activated carbon fiber, and ion exchange fiber, including polyester long fiber industrial filter cloth 240 (60-10), which is woven with multifilament plain weave and weighs 240 grams per square meter; density of warp 22 / cm, weft 18.8 / cm, strength N / 5*20cm radial 2162.6, weft 1082.6, elongation 32.03 longitude, weft 24.87, air permeability 36.1 liters / square meter per second, thickness 0.42 mm; a company produces TK-1500 activated carbon fiber felt with a specific surface area of ​​1400 m 2 / g, benzene adsorption value 50%, iodine adsorption value 1400mg / g, methylene blue adsorption value 220mg / g, ash content ≤ 4, average pore diameter 18~21 angstroms, carbon content 70~95%, 10 layers in parallel, each layer thickness 15 mm; industrial strong acid cation exchange fiber produced by a certain company, light yellow, SO 3 H-functiona...

Embodiment 3

[0044] Such as figure 2 The layered bag side-by-side water purification multifunctional curtain structure shown is made of the following materials: nylon fiber filter cloth 7239 is woven with nylon multifilament twill, the weight is 470 g / square meter; the density is 37.8 / cm for warp and 18.9 / cm for weft , thickness 0.69mm, strength N / 5*20cm radial 5043.4 weft 3326, elongation 53.6 warp, weft 39.07, breathable 62.85 liters / square meter per second. Pitch-based activated carbon fibers with a specific surface area of ​​2000 m 2 / g, pore volume 1.1mL / g, constituent element 13μm fiber, bagging thickness 300mm, packing density 40kg / m 3 ;Do not use high-strength porous sponge and ion exchange fiber.

[0045] The raw water to be treated is the advanced treatment of the effluent from the secondary sedimentation tank after the biochemical treatment unit of an urban sewage treatment plant. The influent water quality indicators are COD 100 mg / L, BOD 5 30 mg / L, SS 30 mg / L, NH 3 -N 30...

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Abstract

The invention provides a multifunctional curtain for water purification, which is mainly applicable to the field of water treatment. Its main feature is that the multi-functional curtain is a layered curtain-like water purification material; the curtain is a single-layer or two-layer or more combined layer structure, each group of layers is relatively independent and each layer can move relatively at different speeds The curtain is mainly made of filter cloth, high-strength porous sponge, activated carbon fiber, ion exchange fiber, two or more of them and their composite product materials, and is made by optimizing the combination of layer modules; the technical selection of the optimized production The basis is the type, water quantity and water quality pollution characteristics of the raw water to be treated; the multifunctional curtain has the function of in-situ purification of multiple compound polluted raw water quality. The beneficial effect is wide adaptability, good water purification effect, small footprint, flexible application form, easy replacement, regeneration and reuse, and environmental friendliness.

Description

technical field [0001] The invention relates to a water purification multifunctional curtain, which belongs to the field of water treatment materials. Background technique [0002] The shortage of water resources in my country is serious. The per capita water resources are only one-fourth of the world's average level. It is one of the countries with the poorest per capita water resources in the world. More than two-thirds of the cities are facing water shortage crises. Moreover, my country's water pollution is still very serious. In recent years, with the development of industry, the acceleration of urbanization and the expansion of population, the average annual discharge of domestic sewage in my country is more than 440 billion tons, and the average annual discharge of industrial wastewater exceeds 20 billion tons. China is a big country that uses pesticides and chemical fertilizers in the world. The amount of pesticides used per unit area is three times the world’s avera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/02C02F9/04C02F101/38C02F103/16
Inventor 陈宏曾琦胡旭跃刘晓平杜春艳余关龙雷超危润初陈伟严晓江
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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