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Gelatin/fly ash composite adsorbing material and preparation method thereof

A composite adsorption material and fly ash technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal compounds, etc., to achieve the effects of increasing reactivity, expanding application range, and enhancing stability

Inactive Publication Date: 2016-06-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the hydrophilic nature of gelatin, it will dissolve in water for a short time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Dry 1 part of fly ash at 110°C for 5 hours, add 20 parts of benzene and stir at high speed for 5 minutes. Add 0.9 parts of coupling agent dropwise. Reflux and stir at 60° C. for 1 hour, filter under reduced pressure, dry the filter cake at 120° C., and grind with a ball mill at 200 r / min for 10 minutes. Dissolve gelatin in water at 40°C with a mass concentration of 2%, add 1% amination-modified fly ash with a mass concentration of 1% under high-speed stirring, and add 1% dialdehyde starch crosslinking agent after stirring to obtain gelatin / Fly ash composite gel: pour the matrix solution into a mold after defoaming, and freeze-dry for 12 hours to obtain a sponge-like gelatin / fly ash composite adsorption material. The gelatin / fly ash composite adsorption material is placed in a hard mesh bracket and submerged in sewage for adsorption.

Embodiment 2

[0032] Dry 1 part of fly ash at 120°C for 3 hours, add 15 parts of toluene and 15 parts of ethanol and stir at high speed for 7 minutes. Add 2 parts of coupling agent dropwise. Reflux and stir at 90°C for 10 hours, suction filter under reduced pressure, dry the filter cake at 110°C, and grind with a ball mill at 600r / min for 15 minutes. Dissolve gelatin at 2% mass concentration in water at 40°C, add 1% mass concentration of amination-modified fly ash under high-speed stirring, add 2% dialdehyde guar gum after stirring evenly to obtain gelatin / powder Coal ash composite gel: pour the matrix solution into a mold after defoaming, and freeze-dry for 15 hours to obtain a sponge-like gelatin / fly ash composite adsorption material. The gelatin / fly ash composite adsorption material is placed in a hard mesh bracket and submerged in sewage for adsorption.

Embodiment 3

[0034] Dry 1 part of fly ash at 170°C for 4 hours, add 5 parts of xylene and 10 parts of methanol and stir at high speed for 7 minutes. Add 1 part of coupling agent dropwise. Reflux and stir at 80°C for 8 hours, suction filter under reduced pressure, dry the filter cake at 108°C, and grind with a ball mill at 500r / min for 18 minutes. Dissolve gelatin in water at 70°C with a mass concentration of 7%, add 5% mass concentration of aminated fly ash under high-speed stirring, and add 7% dialdehyde guar gum after stirring to obtain gelatin / powder Coal ash composite gel: pour the matrix solution into a mold after defoaming, and freeze-dry for 24 hours to obtain a sponge-like gelatin / fly ash composite adsorption material. The gelatin / fly ash composite adsorption material is placed in a hard mesh bracket and submerged in sewage for adsorption.

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Abstract

The invention provides a gelatin / fly ash composite adsorbing material and a preparation method thereof. According to the method, gelatin used as a base material and gamma-aminopropyltriethoxysilane modified fly ash used as adsorbing particle filler are evenly mixed, then a crosslinking modifier is added, and the gelatin / fly ash composite adsorbing material is prepared through crosslinking modification. The prepared gelatin / fly ash composite adsorbing material has a stronger pollutant adsorbing effect and is degradable in the environment, so that the material can be used as fertilizer without causing secondary pollution after adsorbing pollutants. Raw materials of the adsorbing material are wide in source, and meanwhile, a new way is provided for recycling leather leftover materials and waste coal cinder. To sum up, the prepared novel adsorbing material has bright market application value and prospect.

Description

technical field [0001] The invention relates to the field of adsorption materials, in particular to a gelatin / fly ash composite adsorption material with good adsorption performance and a preparation method thereof. Background technique [0002] At present, my country's economy is developing rapidly, and resource shortage and environmental pollution are two major problems facing development. In particular, the pollution and shortage of water resources not only affect economic development but also affect the survival of human beings. Solving the problem of water pollution can not only provide more water resources, but also further reduce environmental pollution. [0003] At present, in addition to the traditional sedimentation method, more membrane filtration methods are used in the treatment of water pollution. The sedimentation method has low efficiency and takes a long time. The membrane filtration method needs to consume more power, and needs to continuously remove the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28
CPCB01J20/267B01J2220/46C02F1/285
Inventor 穆畅道徐永斌葛黎明周颖
Owner SICHUAN UNIV
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