Composite type high-efficiency adsorbent for purifying water

A technology for purifying water and adsorbents, applied in the field of composite high-efficiency adsorbents, can solve problems such as high cost, non-recyclable, complicated process, etc., and achieve strong adsorption performance, high environmental protection and economic benefits, and broad-spectrum adsorption objects Effect

Inactive Publication Date: 2018-08-14
HEFEI PULFI WIRE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the resources of these adsorbent components are non-renewable resources, especially biomass resource materials such as activated carbon, which cannot be recycled after use, and the cost of using thes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] A composite high-efficiency adsorbent for water purification. According to parts by mass, the high-efficiency adsorbent includes: 70 parts of wooden activated carbon, 30 parts of calcined bentonite, 6 parts of coal tar, 5 parts of hydroxymethyl cellulose, and modified carbonic acid 30 parts of calcium, 20 parts of mercapto lignocellulose, 15 parts of montmorillonite, 70 parts of 0.5mol / L sodium hydroxide solution, 25 parts of hydroxyapatite, 25 parts of binder, 7 parts of pore former.

[0025] In this embodiment, the preparation method of modified calcium carbonate is as follows: pass carbon dioxide gas into 20% calcium hydroxide slurry, and add 10% calcium persulfate solution and 25% hydrazine hydrate solution to the slurry. Stir, the addition amount of calcium persulfate solution is 5% of the slurry volume, the addition amount of hydrazine hydrate solution is 8% of the slurry volume, and the amount of carbon dioxide gas is introduced to make the slurry p...

Example Embodiment

[0031] Example 2

[0032] A composite high-efficiency adsorbent for water purification. According to parts by mass, the high-efficiency adsorbent includes: 80 parts of wooden activated carbon, 35 parts of calcined bentonite, 10 parts of coal tar, 8 parts of hydroxymethyl cellulose, and modified carbonic acid. 50 parts of calcium, 30 parts of mercapto lignocellulose, 17 parts of montmorillonite, 80 parts of 0.5mol / L sodium hydroxide solution, 30 parts of hydroxyapatite, 28 parts of binder, and 10 parts of pore former.

[0033] In this embodiment, the preparation method of modified calcium carbonate is as follows: pass carbon dioxide gas into 20% calcium hydroxide slurry, and add 10% calcium persulfate solution and 25% hydrazine hydrate solution to the slurry. Stir, the addition amount of calcium persulfate solution is 5% of the slurry volume, the addition amount of hydrazine hydrate solution is 8% of the slurry volume, and the amount of carbon dioxide gas is introduced to make the s...

Example Embodiment

[0039] Example 3

[0040] A composite high-efficiency adsorbent for water purification. According to parts by mass, the high-efficiency adsorbent includes: 75 parts of wooden activated carbon, 33 parts of calcined bentonite, 8 parts of coal tar, 7 parts of hydroxymethyl cellulose, and modified carbonic acid 32 parts of calcium, 25 parts of mercapto lignocellulose, 16 parts of montmorillonite, 75 parts of 0.5mol / L sodium hydroxide solution, 27 parts of hydroxyapatite, 26 parts of binder, and 9 parts of pore former.

[0041] In this embodiment, the preparation method of modified calcium carbonate is as follows: pass carbon dioxide gas into 20% calcium hydroxide slurry, and add 10% calcium persulfate solution and 25% hydrazine hydrate solution to the slurry. Stir, the addition amount of calcium persulfate solution is 5% of the slurry volume, the addition amount of hydrazine hydrate solution is 8% of the slurry volume, and the amount of carbon dioxide gas is introduced to make the slur...

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Abstract

The invention relates to the technical field of water purifying agents and particularly relates to a composite type high-efficiency adsorbent for purifying water. The composite type high-efficiency adsorbent is prepared from the following components of: wooden activated carbon, calcined bentonite, coal tar, hydroxymethyl cellulose, modified calcium carbonate, sulfydryl wooden cellulose, montmorillonite, sodium hydroxide solution, hydroxyapatite, a binding agent and a pore-forming agent, wherein the hydroxyapatite is powder obtained by soaking desulfurized gypsum in phosphate solution, then conveying into a polytetrafluoroethylene reaction kettle for ageing and centrifugation, finally washing, drying and grinding; the binding agent is attapulgite clay; the pore-forming agent is one or mixture of more of ammonium carbonate, ammonium hydrogen carbonate and sodium hydrogen carbonate. The composite type high-efficiency adsorbent has the beneficial effects that the adsorbing efficiency is high, the spectrum for adsorbing pollutants can be broader, and due to use of a large amount of industrial side products, the production cost of the adsorbent can be obviously reduced and the environmental-friendly and economic benefits are higher.

Description

technical field [0001] The invention relates to the technical field of water purifiers, in particular to a composite high-efficiency adsorbent for purifying water. Background technique [0002] Human production and life will produce a large amount of wastewater, which contains pollutants such as heavy metals, organic matter and suspended solids that are harmful to organisms. If these wastewater are not purified and discharged directly into the environment, ecological water resources will be damaged. Cause serious pollution and affect the normal physiological activities of humans and other living organisms in the biological world. [0003] Adsorption is the most important part of wastewater treatment. Through specific adsorbents, organic matter, heavy metals and inorganic substances in wastewater can be effectively absorbed, thereby purifying the water quality to the extent that it can be directly discharged. Used in the environmental protection treatment process The adsorbe...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/20B01J20/12B01J20/04B01J20/30C02F1/28C02F101/30C02F101/20
CPCB01J20/048B01J20/12B01J20/20B01J20/24C02F1/288C02F2101/20C02F2101/30
Inventor 刘勇
Owner HEFEI PULFI WIRE TECH CO LTD
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