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Hydrophilic oleophobic filter material and preparation method thereof

A technology of hydrophilic and oleophobic filter materials, which is applied in the field of filter materials, can solve the problems that hinder the popularization and application of fiber ball filter materials and cannot be washed clean, and achieve good regeneration performance, high filtration speed and good filtration effect

Inactive Publication Date: 2015-11-18
曾金华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the extremely strong lipophilicity on the surface of the fiber ball filter material, it cannot be washed clean after absorbing oil, which hinders the popularization and application of the fiber ball filter material in the treatment of oily sewage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of hydrophilic and oleophobic filter material, comprises the steps:

[0030] 1) Raw material preparation: prepare 90kg fiber silk and 10kg ramie;

[0031] 2) Processing of ramie:

[0032] ① Crush the ramie, add purified water equivalent to twice the weight of the raw material, heat to 60°C for 5 minutes, and obtain a paste-like slurry;

[0033] ②Enzymolysis: adjust the pH of the paste slurry obtained in step ① to be 4, add 0.05% by weight of the paste slurry with an activity of 10,000-30,000 activity units / gram of pectin-cellulose compound enzyme and 0.001% by weight of Mannitol was subjected to enzymolysis for 60 minutes to obtain an enzymolysis solution;

[0034] ③Degreasing: Add 2 times the weight of pure water to the enzymatic hydrolysis solution obtained in step ②, heat to 70°C and extract for 60 minutes to obtain a mixture of the upper layer floating oil liquid and the lower layer liquid and slag;

[0035] ④Drying: drying the lower liquid...

Embodiment 2

[0040] The preparation method of hydrophilic and oleophobic filter material, comprises the steps:

[0041] 1) raw material preparation: prepare 95kg fiber silk, 5kg ramie;

[0042] 2) Processing of ramie:

[0043] ① Crush the ramie, add purified water equivalent to 3 times the weight of the raw material, heat to 50°C for 10 minutes, and obtain a paste-like slurry;

[0044] ② Enzymolysis: adjust the pH of the paste slurry obtained in step ① to be 5, add 0.1% by weight of the paste slurry with an activity of 10,000-30,000 activity units / gram of pectin-cellulose compound enzyme and 0.001% by weight of Mannitol was subjected to enzymolysis for 40 minutes to obtain an enzymolysis solution;

[0045] ③Degreasing: Add 3 times the weight of pure water to the enzymatic solution obtained in step ②, heat to 60°C and extract for 60 minutes to obtain a mixture of the upper layer floating oil liquid, the lower layer liquid and slag;

[0046] ④ Drying: Dry the lower layer liquid and slag m...

Embodiment 3

[0051] The preparation method of hydrophilic and oleophobic filter material, comprises the steps:

[0052] 1) Raw material preparation: prepare 92kg fiber silk and 8kg ramie;

[0053] 2) Processing of ramie:

[0054] ① Crush the ramie, add purified water equivalent to 3 times the weight of the raw material, heat to 55°C for 5-10 minutes, and obtain a paste-like slurry;

[0055] ② Enzymolysis: adjust the pH of the paste slurry obtained in step ① to 4, add 0.1% by weight of the paste slurry with an activity of 10,000-30,000 activity units / gram of pectin-cellulose compound enzyme and 0.001% by weight of Mannitol was subjected to enzymolysis for 60 minutes to obtain an enzymolysis solution;

[0056] ③Degreasing: add 3 times the weight of pure water to the enzymatic solution obtained in step ②, heat to 65°C and extract for 100 minutes to obtain a mixture of the upper layer floating oil liquid, the lower layer liquid and slag;

[0057] ④ Drying: Dry the lower layer liquid and sla...

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PUM

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Abstract

The invention discloses a hydrophilic oleophobic filter material and a preparation method thereof. Manufactured fibers are chemically improved through an efficient technology, and botanic ingredients are added, so that the treatment performance of the fibers is changed. According to the obtained hydrophilic oleophobic filter material, modified treatment is carried out on fiber balls, and the adsorption capacity to oil and organic matter is improved. In the running process, the porosity of a filter layer is gradually reduced in the water flow direction, an ideal big-end-up pore distribution state of the filter material is formed, and the filter effect is better. The filter speed is high and can reach 30-35 m / h, and the filter material only needs to be supplemented by about 5% every year, and does not need to be replaced.

Description

technical field [0001] The invention belongs to the technical field of filter materials, and in particular relates to a hydrophilic and oleophobic filter material and a preparation method thereof. Background technique [0002] The fiber ball filter material is made of fiber filaments. Fiber balls can effectively remove suspended solids in water, and have obvious removal effects on organic matter, colloid, iron, manganese, etc. in water. Since the fiber ball filter material was put into the market in the 1980s, it has been used in China for many years. It has a large specific surface area, high porosity, large sewage interception capacity, small resistance loss, high filtration rate, and good water quality. Recommended by industry insiders. [0003] Fiber balls are widely used in side-flow filtration of circulating water, advanced treatment of domestic water, boiler feed water treatment, pre-filtration of reverse osmosis, and filtration of sewage reuse. Fiber balls are sui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/04
Inventor 曾金华
Owner 曾金华
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