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Compound adsorbent for water treatment

A composite adsorption and water treatment technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc. The effect of low, good binding force and wide source of raw materials

Inactive Publication Date: 2016-06-15
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing adsorbents for water treatment have a single effect and only have adsorption properties, but do not have the functions of antibacterial and disinfection, and there are problems such as limited adsorption effect and short service life due to their weak binding force.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the embodiment of the present invention, a kind of composite adsorbent for water treatment, the raw material according to mass percentage includes bentonite 82%, bagasse 4%, fly ash 3%, alginic acid fiber 1%, polyvinyl alcohol 0.15%, Potassium carbonate 1%, diatomaceous earth 3%, zeolite powder 0.5%, nano titanium dioxide 0.35% and water 5%.

[0019] The preparation method of the described composite adsorbent for water treatment comprises the following steps:

[0020] 1) Mix bentonite, bagasse, fly ash, alginic acid fiber, potassium carbonate, and diatomaceous earth in proportion to the planetary ball mill, grind at a speed of 400r / min for 30-60min, take it out and dry it, grind it, and pass 100 -200 mesh sieve, get mixed powder stand-by;

[0021] 2) Weigh the polyvinyl alcohol and water in proportion, pour the polyvinyl alcohol and water into the container, then put the container into the water bath heating magnetic stirrer, heat the water bath heating magnetic sti...

Embodiment 2

[0026] In the embodiment of the present invention, a composite adsorbent for water treatment, the raw materials according to mass percentage include 74% bentonite, 7% bagasse, 4% fly ash, 1.5% alginate fiber, 0.35% polyvinyl alcohol, Potassium carbonate 1.8%, diatomaceous earth 3.4%, zeolite powder 0.7%, nano titanium dioxide 0.6% and water 6.65%.

[0027] The preparation method of the described composite adsorbent for water treatment comprises the following steps:

[0028] 1) Mix bentonite, bagasse, fly ash, alginic acid fiber, potassium carbonate, and diatomaceous earth in proportion to the planetary ball mill, grind at a speed of 400r / min for 30-60min, take it out and dry it, grind it, and pass 100 -200 mesh sieve, get mixed powder stand-by;

[0029] 2) Weigh the polyvinyl alcohol and water in proportion, pour the polyvinyl alcohol and water into the container, then put the container into the water bath heating magnetic stirrer, heat the water bath heating magnetic stirrer...

Embodiment 3

[0034] In the embodiment of the present invention, a composite adsorbent for water treatment, the raw materials according to mass percentage include 64% bentonite, 10% bagasse, 5% fly ash, 2% alginic acid fiber, 00.5% polyvinyl alcohol, Potassium carbonate 2%, diatomaceous earth 4.8%, zeolite powder 1%, nano titanium dioxide 0.7% and water 10%.

[0035] The preparation method of the described composite adsorbent for water treatment comprises the following steps:

[0036] 1) Mix bentonite, bagasse, fly ash, alginic acid fiber, potassium carbonate, and diatomaceous earth in proportion to the planetary ball mill, grind at a speed of 400r / min for 30-60min, take it out and dry it, grind it, and pass 100 -200 mesh sieve, get mixed powder stand-by;

[0037] 2) Weigh the polyvinyl alcohol and water in proportion, pour the polyvinyl alcohol and water into the container, then put the container into the water bath heating magnetic stirrer, heat the water bath heating magnetic stirrer, a...

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PUM

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Abstract

The invention discloses a composite adsorbent for water treatment. According to the mass percentage, the raw materials include 64-82% of bentonite, 4-10% of bagasse, 3-5% of fly ash, 1-2% of alginic acid fiber, Polyvinyl alcohol 0.15-0.5%, potassium carbonate 1-2%, diatomaceous earth 3-4.8%, zeolite powder 0.5-1%, nano titanium dioxide 0.35-0.7% and water 5-10%. The invention has the characteristics of wide source of raw materials and low cost, and each raw material will not pollute the environment. The present invention uses bentonite and diatomite as main raw materials, by adding polyvinyl alcohol with strong binding force, bagasse, fly ash, alginic acid fiber with strong adsorption, potassium carbonate with antibacterial effect, nano-titanium dioxide, etc. It is obtained by mixing auxiliary raw materials, has good binding force, antibacterial property, adsorption property and long-lasting effect, and can be widely used in water treatment.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a composite adsorbent for water treatment. Background technique [0002] At present, water resources are in short supply worldwide, and water pollution is becoming more and more serious. How to rationally utilize water resources, reduce sewage discharge, and protect the water environment has attracted widespread attention from people all over the world. Sewage reuse technology has emerged as the times require. Sewage reuse can not only save a lot of fresh water, but also greatly reduce sewage discharge and protect the water environment. [0003] The existing water treatment methods are mainly divided into physical treatment and chemical treatment. Physical methods include adsorption, barrier, and precipitation methods. The chemical method is to use various chemicals to convert impurities in water into substances that are less harmful to the human body, or to concentrate impuritie...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28
CPCB01J20/261B01J20/0211B01J20/043B01J20/103B01J20/12B01J20/14B01J20/165B01J20/24B01J2220/46C02F1/288C02F2303/04
Inventor 卢红伟
Owner HANGZHOU DIANZI UNIV
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