Preparation method of bentonite adsorption material for wastewater treatment

An adsorption material and wastewater treatment technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. The effect of large adsorption capacity, increased adsorption capacity, and good popularization and application value

Inactive Publication Date: 2019-01-22
WUHU PENGLEI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if bentonite is used alone as an adsorbent, there are fewer adsorption objects, the adsorption range and adsorption capacity are relatively limited, and it is difficult to separate from wastewater, making water treatment difficult.

Method used

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Experimental program
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Embodiment Construction

[0017] A preparation method of bentonite adsorption material for wastewater treatment, comprising the following steps:

[0018] (1) Grinding 5 parts by weight of bentonite raw ore to 100 mesh to obtain raw bentonite powder, adding the raw bentonite powder, 0.05 part by weight of sodiumizing agent and 0.01 part by weight of dispersant to 20 parts by weight of water, first stirring at high speed for 10 minutes, and then Stand at 80°C for 1 hour, centrifuge and dry to obtain sodium bentonite;

[0019] (2) After mixing and sterilizing the sodium bentonite obtained in step (1) with 100 parts by weight of bacterial cellulose fermentation medium, insert 0.5 parts by weight of Acetobacter xylinum suspension to ferment for 10 days, centrifuge, wash and dry, Obtain bacterial cellulose-sodium bentonite composite material;

[0020] (3) Add the bacterial cellulose-sodium bentonite composite material obtained in step (2) into 120 parts by weight of water and mix evenly to obtain a composit...

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Abstract

The invention discloses a preparation method of a bentonite adsorption material for wastewater treatment. The preparation method comprises the following steps: carrying out sodium modification on bentonite to obtain sodium bentonite, mixing the sodium bentonite with a bacterial cellulose fermentation medium, inoculating with an Acetobacter xylinum suspension, carrying out fermentation, centrifugation, washing and drying to obtain a bacterial cellulose-sodium bentonite composite material, adding the composite material to water, performing uniform mixing to obtain a composite slurry, carrying out pillaring modification treatment by using a hydroxy aluminum pillaring agent, and carrying out centrifugation and washing to obtain the bentonite adsorption material for wastewater treatment. The bentonite adsorption material obtained by the preparation method has the advantages of wide adsorption range, large adsorption capacity, convenience in wastewater treatment, and good promotion and application values.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a preparation method of bentonite adsorption material for wastewater treatment. Background technique [0002] The main mineral component of bentonite is montmorillonite, and the structural formula of montmorillonite is: Na x (H 2 O) 4 {(Al 2 -xMgx) (OH) 2}, bentonite particles are stacked by hundreds of montmorillonite structural unit layers, and the interlayer domain formed between the unit layers becomes a space with a huge inner surface. This structural feature determines that bentonite has a high Excellent cation exchange capacity and good adsorption performance. [0003] Traditional wastewater treatment adsorbents, such as activated carbon and fly ash, have their own shortcomings in application, such as high price and secondary pollution. my country's bentonite reserves are the first in the world, with a wide range of sources, low prices, and no secondary unman...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24C02F1/28B01J20/30
CPCB01J20/08B01J20/12B01J20/24C02F1/281C02F1/286
Inventor 王浩
Owner WUHU PENGLEI NEW MATERIAL
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