High-strength high-permeability polyethylene sewage treatment membrane and preparation process thereof

A technology of sewage treatment and polyethylene film, which is applied in water/sewage treatment, biological water/sewage treatment, adsorption water/sewage treatment, etc., can solve the problems of pollution and pollution degradation, and achieve the purpose of inhibiting hole recombination, The effect of improving adsorption and enhancing adsorption performance

Pending Publication Date: 2022-03-04
JIANGSU HORIZON NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polyethylene has good chemical stability and low temperature resistance, but when polyethylene is used as a sewage treatment membrane, it is easily polluted by organic matter in sewage, and the effect of pollution degradation is relatively poor, thus inhibiting the use of polyethylene in sewage treatment membranes. develop

Method used

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  • High-strength high-permeability polyethylene sewage treatment membrane and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: comprise the following steps:

[0037] S1: Mix 10 parts of melamine and 10 parts of dimethyl sulfoxide solution evenly, and react with ultrasound for 10 minutes, which is material A. Mix 10 parts of cyanuric acid and 10 parts of dimethyl sulfoxide solution evenly, and react with ultrasound for 10 minutes, which is Material B, soak 5 parts of hemp stalks in 20 parts of glacial acetic acid, mix well, react for 10 minutes, add 10 parts of dimethyl sulfoxide and 5 parts of N,N,N',N'-tetramethyldiamine, mix After uniformity, slowly add 5 parts of tetrabutyl titanate dropwise, react for 0.5h, heat up to 120°C, react for 10h, filter, wash with ethanol, after drying, mix with material A evenly, ultrasonically react for 10min, add material B, mix Evenly, filter with suction, wash with ethanol, dry, protect with nitrogen, and calcinate at 500°C for 2 hours, which is the biochar-titanium dioxide composite material;

[0038]S2: Add 10 parts of β-cyclodextrin and 15 p...

Embodiment 2

[0043] Embodiment 2: comprise the following steps:

[0044] S1: Mix 12 parts of melamine and 12 parts of dimethyl sulfoxide solution evenly, and react ultrasonically for 12 minutes, which is material A. Mix 12 parts of cyanuric acid and 12 parts of dimethyl sulfoxide solution evenly, and react ultrasonically for 12 minutes, which is Material B, soak 8 parts of hemp stalks in 23 parts of glacial acetic acid, mix well, react for 15 minutes, add 12 parts of dimethyl sulfoxide and 8 parts of N,N,N',N'-tetramethyldiamine, mix After uniformity, slowly add 12 parts of tetrabutyl titanate dropwise, react for 0.6h, heat up to 130°C, react for 12h, filter, wash with ethanol, after drying, mix evenly with material A, ultrasonically react for 11min, add material B, mix Evenly, filter with suction, wash with ethanol, dry, protect with nitrogen, and calcinate at 500°C for 2 hours, that is, biochar-titanium dioxide composite material;

[0045] S2: Add 12 parts of β-cyclodextrin and 20 parts...

Embodiment 3

[0050] Embodiment 3: comprise the following steps:

[0051] S1: Mix 18 parts of melamine and 16 parts of dimethyl sulfoxide solution evenly, and react ultrasonically for 13 minutes, which is material A. Mix 18 parts of cyanuric acid and 16 parts of dimethyl sulfoxide solution evenly, and react ultrasonically for 13 minutes, which is Material B, soak 13 parts of hemp stalks in 28 parts of glacial acetic acid, mix well, react for 18 minutes, add 12 parts of dimethyl sulfoxide and 13 parts of N,N,N',N'-tetramethyldiamine, mix After uniformity, slowly add 18 parts of tetrabutyl titanate dropwise, react for 0.8h, heat up to 140°C, react for 13h, filter, wash with ethanol, after drying, mix evenly with material A, ultrasonically react for 13min, add material B, mix Evenly, filter with suction, wash with ethanol, dry, protect with nitrogen, and calcinate at 500°C for 2 hours, that is, biochar-titanium dioxide composite material;

[0052] S2: Add 18 parts of β-cyclodextrin and 25 par...

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Abstract

The invention discloses a high-strength high-permeability polyethylene sewage treatment membrane and a preparation process thereof.The sewage treatment membrane comprises a polyethylene membrane and a coating, the surface of at least one side of the polyethylene membrane is coated with the coating, and the polyethylene membrane is prepared from, by weight, 60-85 parts of polyethylene, 1-5 parts of pore-foaming agent, 0.3-1.5 parts of antioxidant and 1-5 parts of filler; the coating is prepared from dopamine, a silane coupling agent, a metal ion adsorbent and a Tris-HCl buffer solution. The preparation method comprises the following steps: S1, preparing raw materials; s2, preparing a polyethylene film and a coating; s3, the surface of at least one side of a polyethylene film is coated with the coating, a coating layer is formed, heat setting treatment and rolling are carried out, and the polyethylene sewage treatment film is obtained.The polyethylene sewage treatment film prepared through the preparation method has good hydrophilicity, permeability, acid and alkali resistance, corrosion resistance and metal ion and organic matter adsorption performance and is high in efficiency.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a high-strength and high-permeability polyethylene sewage treatment membrane and a preparation process thereof. Background technique [0002] With the development of industrialization in today's society, more and more sewage is discharged into the natural environment, and the types and quantities of sewage are also increasing day by day. The discharge of sewage is harmful to the environment and human health, breaking the ecological balance and It will cause a waste of energy and resources, so sewage treatment has become a top priority. [0003] Commonly used sewage treatment methods include: precipitation, air flotation, coagulation, neutralization, redox, electrolysis, biological treatment, etc. With the development of technology, membrane technology has become the most widely used method in sewage treatment. It can be widely used in biomedicine, electrical devices, ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D67/00B01D69/02B01D71/26C02F3/34C02F1/28C02F1/30
CPCB01D71/26B01D69/02B01D67/0088B01D67/0083C02F1/30C02F1/288C02F3/34B01D2325/10B01D2325/12B01D2325/36B01D2325/48B01D2325/30C02F2305/10
Inventor 翁星星吕东梅沈亚定
Owner JIANGSU HORIZON NEW ENERGY TECH CO LTD
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