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Preparation method of modified synthetic-zeolite heavy-metal-ion absorbing material

A heavy metal ion and synthetic zeolite technology, applied in chemical instruments and methods, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as difficult regeneration, secondary pollution, and small adsorption capacity of heavy metal ions. Achieve the effect of increasing adsorption capacity, widening internal pores, improving adsorption capacity and regenerability

Inactive Publication Date: 2018-07-24
吴刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: due to the defects in the structure of the current common adsorbents, the adsorption capacity of heavy metal ions is small, the regeneration is difficult, and a large amount of waste containing heavy metals is easily produced to cause secondary pollution. A kind of preparation method of modified synthetic zeolite heavy metal ion adsorption material

Method used

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  • Preparation method of modified synthetic-zeolite heavy-metal-ion absorbing material
  • Preparation method of modified synthetic-zeolite heavy-metal-ion absorbing material

Examples

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Effect test

example 1

[0024] Weigh 12g of fly ash and pour it into 65mL of potassium hydroxide solution with a concentration of 8mol / L, stir and react for 4h at a temperature of 85°C to obtain the reactant, wash the reactant repeatedly with deionized water until the pH of the rinse solution is If it is neutral, the reactant after washing is placed in an oven, dried at a temperature of 95°C for 35 minutes, ground and discharged to obtain a self-made zeolite powder, and finally the self-made zeolite powder is put into a muffle furnace. Calcined at 400°C for 1 hour, cooled and discharged to obtain modified zeolite powder; mix kiwi fruit and lemon in a juicer according to the equal mass ratio and squeeze it into juice, collect the mixed juice, and then mix the modified zeolite powder, mixed juice and concentration for 10 5 The cfu / mL Acetobacter suspension is mixed in a fermenter at a mass ratio of 8:3:1, sealed and fermented at a temperature of 27°C for 7 days, and the fermentation product is taken ou...

example 2

[0026] Weigh 14g of fly ash and pour it into 70mL of potassium hydroxide solution with a concentration of 8mol / L, stir and react for 5h at a temperature of 90°C to obtain the reactant, rinse the reactant repeatedly with deionized water until the pH of the rinse solution is If it is neutral, the washed reactant is placed in an oven, dried at a temperature of 98°C for 40 minutes, ground and discharged to obtain a self-made zeolite powder, and finally the self-made zeolite powder is put into a muffle furnace. Calcined at 440°C for 1.5h, cooled and discharged to obtain modified zeolite powder; mixed kiwi fruit and lemon in a juicer according to equal mass ratio, squeezed into juice, collected mixed juice, then modified zeolite powder, mixed juice and Concentration is 10 5 The cfu / mL Acetobacter suspension is mixed in a fermenter at a mass ratio of 8:3:1, sealed and fermented at a temperature of 30°C for 8 days, and the fermentation product is taken out after the fermentation is co...

example 3

[0028] Weigh 16g of fly ash and pour it into 75mL of potassium hydroxide solution with a concentration of 8mol / L, stir and react for 6 hours at a temperature of 95°C to obtain the reactant, rinse the reactant repeatedly with deionized water until the pH of the rinse solution is If it is neutral, the reactant after washing is placed in an oven, dried at a temperature of 100°C for 45 minutes, ground and discharged to obtain a self-made zeolite powder, and finally the self-made zeolite powder is put into a muffle furnace. Calcined at 480°C for 2 hours, cooled and discharged to obtain modified zeolite powder; mix kiwi fruit and lemon in a juicer according to equal mass ratio and squeeze into juice, collect the mixed juice, and then mix the modified zeolite powder, mixed juice and concentration for 10 5 The cfu / mL Acetobacter suspension is mixed in a fermenter with a mass ratio of 8:3:1, and sealed and fermented at a temperature of 35°C for 9 days. After the fermentation, the ferme...

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Abstract

The invention relates to the technical field of preparation of environment-friendly materials and particularly relates to a preparation method of a modified synthetic-zeolite heavy-metal-ion absorbingmaterial. The preparation method is characterized in that the modified synthetic-zeolite heavy-metal-ion absorbing material is obtained by adopting synthetic zeolite as a matrix, adopting self-made chitosan as a modifier and adopting peach gum and absolute ethyl alcohol and the like as auxiliary materials; firstly, saccharose, yogurt, magnesium sulfate and potassium dihydrogen phosphate are mixedand dissolved in deionized water and the absolute ethyl alcohol to be stirred, after stirring, inoculating with acetic bacteria strains is carried out, modified zeolite powder, bacteria liquid matrixand self-made mixed juice are mixed and commonly fermented to dissolve impurities in molecular pore channels of the synthetic zeolite, the saccharose is utilized for providing nutritional substancesso as to supply a sufficient carbon source to heavy-metal-ion absorbing microorganisms; the chitosan is extracted from crab shells, so that the benefit for improving the absorbing capacity of the heavy-metal-ion absorbing material is achieved; the surface of the matrix is covered by viscous peach gum continuously, so that the regeneration purpose is achieved, the regeneration cycle period of the heavy-metal-ion absorbing material is prolonged and the use prospect is wide.

Description

technical field [0001] The invention relates to the technical field of preparation of environmental protection materials, in particular to a preparation method of a modified synthetic zeolite heavy metal ion adsorption material. Background technique [0002] The so-called heavy metal pollution mainly refers to elements with significant biological toxicity such as lead, copper, and mercury, as well as elements with certain toxicity such as zinc, tin, and cobalt. Because heavy metals and heavy metal compounds are widely used in chemical industry, electroplating, leather, etc. Industry, as their applications continue to expand, heavy metal pollution is also increasing. Because heavy metals are difficult to biodegrade and have bioaccumulation, the pollution caused by them is continuous. Heavy metals in water have become the most serious in the world today. One of the environmental problems. [0003] At present, the methods for treating industrial wastewater mainly include red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24C02F1/28B01J20/30C02F101/10C02F101/20
CPCB01J20/12B01J20/186B01J20/24C02F1/288C02F2101/103C02F2101/20
Inventor 吴刚杨明忠张建初
Owner 吴刚
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