Method for preparing thalli/ bentonite organic and inorganic composite adsorbent

An inorganic composite, bentonite technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of complex preparation process, difficult removal of heavy metals, poor decolorization effect, etc. The effect of removal rate

Inactive Publication Date: 2012-11-07
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of bacterium / bentonite organic-inorganic composite adsorbent, which utilizes fermentation waste bacterium, natural bentonite and industrial hydrochloric acid or sulfuric acid to prepare organic-inorganic composite adsorbent through microwave modification as water treatment It solves the problems of complex preparation process, high cost, secondary pollution, poor decolorization effect on dyes with good water solubility or low relative molecular weight and difficult removal of heavy metals existing in existing water treatment chemicals

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  • Method for preparing thalli/ bentonite organic and inorganic composite adsorbent
  • Method for preparing thalli/ bentonite organic and inorganic composite adsorbent
  • Method for preparing thalli/ bentonite organic and inorganic composite adsorbent

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with examples.

[0014] Add 10g of Aspergillus niger mycelium powder and 250g of bentonite into a 500mL large beaker and mix evenly, then add 312mL of industrial hydrochloric acid with a mass fraction of 3%, or 312mL of 3% sulfuric acid, stir while adding, continue to stir and mix for 15min, and let stand After activating for 15-25 minutes, place it in a microwave oven at 480W to heat, modify and dry it, take it out and cool it, and grind it into powder, which is the prepared mycelium / bentonite organic-inorganic composite water treatment agent product. Bentonite is the natural bentonite in Heishan Chengdong, Liaoning.

[0015] Use this product to treat various concentrations of single dye simulated wastewater and Cr commonly used in printing and dyeing factories 6+ The simulated wastewater has received a better treatment effect. The processing results are shown in Table 1 and Tables 2 and 3.

[00...

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Abstract

The invention discloses a method for preparing a thalli/ bentonite organic and inorganic composite adsorbent, and relates to a method for preparing a water treatment agent. The method comprises the following steps of: 1) preparing raw materials: drying and crushing fungal thalli, sieving with a sieve of 200 meshes, crushing natural bentonite, and sieving with a sieve of 200 meshes; and 2) preparing the water treatment agent: mixing the thalli powder and the bentonite in a mass ratio of 1: (10-40) (g/g), adding 3 to 5 percent by mass of industrial hydrochloric acid or 3 to 7 percent by mass of sulfuric acid in a mass/volume ratio of 1: (1.2-1.7) (g/mL), stirring and mixing for 10 to 15 minutes, standing and activating for 15 to 25 minutes, modifying with microwave of 400 to 480W, drying, crushing, and thus obtaining the thalli/ bentonite organic and inorganic composite adsorbent product. The adsorbent has a good adsorption and decolorization effect and high removal rate on active dyes, acid dyes, alkali dyes, disperse dyes and heavy metals.

Description

technical field [0001] The invention relates to a preparation method of a water treatment agent, in particular to a preparation method of a bacterium / bentonite organic-inorganic composite adsorbent. Background technique [0002] Water treatment agents include inorganic coagulants and organic polymer coagulants. Inorganic coagulants are mostly iron salts, aluminum salts, magnesium salts and inorganic polymer coagulants. Organic polymer coagulants include synthetic organic polymer coagulants and natural organic polymer coagulants. Synthetic organic polymer coagulants are mostly artificially synthesized giant linear molecules, while natural organic polymer coagulants include starch derivatives, cellulose derivatives, modified plant gums, polysaccharides and protein modified products, etc. Due to the complex manufacturing process of the above-mentioned water treatment agents, the high price of some products, or certain toxicity, easy to cause secondary pollution and other reas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30
Inventor 刘桂萍刘学贵刘长风祝杏
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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