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Sinocalamus affinis scrap biomass adsorbent, and preparation method and application thereof

A technology of biomass adsorbent and trimmings, applied in chemical instruments and methods, adsorption of water/sewage treatment, water pollutants, etc., can solve the problems of low added value, single utilization of Cizhu trimmings, etc., and achieve processing costs Low, excellent adsorption effect, simple preparation process

Inactive Publication Date: 2013-01-02
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cheap and easy to obtain, low cost, good removal effect, wide application range biomass adsorbent and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 100ml of hydrochloric acid with a mass fraction of 10% to 10 grams of pulverized Arthias chinensis (0.2-0.25mm in particle size), stir and react at 50°C for 3h, filter, and wash the filter residue with deionized water until the filtrate is neutral . Add 100ml of sodium dodecylbenzenesulfonate solution with a mass fraction of 5%, stir well, and then stir and react at 60°C for 12h; filter, wash the filter residue with deionized water until the filtrate is clear, and dry at 60°C for 24h, namely The heavy metal ion adsorbent of Cizhu corner material biomass can be obtained.

[0028] The adsorption amount of the adsorbent to methylene blue is 79.6 mg / g, the adsorption amount to hexavalent chromium ion is 54.1 mg / g, and the adsorption amount to hexavalent uranium ion is 17 mg / g.

Embodiment 2

[0030] Add 100ml of sulfuric acid with a mass fraction of 5% to 10 grams of pulverized Cizhu corners (with a particle size of 0.2-0.25mm), stir and react at 50°C for 3h, filter, and wash the filter residue with deionized water until the filtrate is neutral . Add 100ml of sodium dodecylbenzenesulfonate solution with a mass fraction of 5%, stir well, and then stir and react at 60°C for 12h; filter, wash the filter residue with deionized water until the filtrate is clear, and dry at 60°C for 24h, namely The heavy metal ion adsorbent of Cizhu corner material biomass can be obtained.

[0031] The adsorption capacity of the adsorbent for methylene blue is 66.1 mg / g, the adsorption capacity for hexavalent chromium ions is 43.2 mg / g, and the adsorption capacity for hexavalent uranium ions is 15.2 mg / g.

Embodiment 3

[0033] Add 100ml of nitric acid with a mass fraction of 5% to 10 grams of pulverized Cizhu corners (with a particle size of 0.2-0.25mm), stir and react at 50°C for 3h, filter, and wash the filter residue with deionized water until the filtrate is neutral . Add 100ml of sodium dodecylbenzenesulfonate solution with a mass fraction of 5%, stir well, and then stir and react at 60°C for 12h; filter, wash the filter residue with deionized water until the filtrate is clear, and dry at 60°C for 24h, namely The heavy metal ion adsorbent of Cizhu corner material biomass can be obtained.

[0034] The adsorption amount of the adsorbent to methylene blue is 94 mg / g, the adsorption amount to hexavalent chromium ion is 49.5 mg / g, and the adsorption amount to hexavalent uranium ion is 19.8 mg / g.

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Abstract

The invention discloses a sinocalamus affinis scrap biomass adsorbent and a preparation method thereof. The preparation method of the adsorbent comprises the following steps: 1) reacting pulverized sinocalamus affinis scraps with activating agent to obtain activated sinocalamus affinis scraps; and 2) reacting the activated sinocalamus affinis scraps with modifier to obtain the sinocalamus affinis scrap biomass adsorbent. The adsorbent takes the sinocalamus affinis scraps as preparation raw materials, only requires common equipment, and is low in price, simple in preparation process, low in processing cost and favorable in adsorbing effect.

Description

technical field [0001] The invention relates to a kind of biomass adsorbent for leftovers of Cizhu and its preparation method and application. Background technique [0002] The existence of excessive heavy metal ions in natural water bodies has become an important factor that pollutes the environment and threatens human health. How to remove excess metal ions in natural water with high efficiency, low cost and no secondary pollution has become a topic of increasing concern to scientists all over the world. At present, the methods of removing heavy metals in water are still mainly chemical precipitation, electrochemical treatment, physical adsorption, living biological adsorption and ion exchange, among which ion exchange adsorption plays an important role in the removal of heavy metals. [0003] In recent years, the research on adsorption materials using natural products as raw materials has attracted increasing attention of researchers. The current research results show t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20C02F101/22
Inventor 胡尚连任鹏朱会平段宁卢学琴曹颖
Owner SOUTHWEAT UNIV OF SCI & TECH
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