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Modified grass fiber and thallus mixture for adsorbing heavy metal

A technology for adsorbing heavy metals and grass fibers, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of high cost and harsh conditions, and achieve the effects of short reaction time, stable performance and simple preparation method

Inactive Publication Date: 2014-10-01
QINGDAO KEWEIYUAN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the disadvantages of harsh conditions and high cost in the existing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The Achnatherum splendens is crushed and dried, one part by weight of grass powder is added, a little water is added, the pH value is adjusted to 7.5 with 0.1M sodium hydroxide solution, and the reaction is conducted at 120 degrees for 60 minutes. This process is completed with constant stirring. After the reaction is completed, add two parts by weight of Bacillus licheniformis S1, use 0.1% lactose as a medium, stir uniformly, filter, wash, and dry to obtain the mixture.

Embodiment 2

[0016] The Achnatherum splendens is crushed and dried, one part by weight of grass powder is added, a little water is added, the pH value is adjusted to 9.0 with a 0.1M sodium hydroxide solution, and the reaction is performed at 140 degrees for 70 minutes. This process is completed with continuous stirring. After the reaction is completed, add two parts by weight of Bacillus licheniformis S1, use 0.1% lactose as the medium, stir uniformly, filter, wash, and dry to obtain a mixture.

Embodiment 3

[0018] The Achnatherum splendens is crushed and dried, one part by weight of grass powder is added, a little water is added, the pH value is adjusted to 10.5 with 0.1M sodium hydroxide solution, and the reaction is carried out at 150 degrees for 80 minutes. This process is completed in constant stirring. After the reaction is completed, add two parts by weight of Bacillus licheniformis S1, use 0.1% lactose as a medium, stir uniformly, filter, wash, and dry to obtain the mixture.

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Abstract

The invention aims to provide a modified grass fiber and thallus mixture for adsorbing heavy metal. To realize the purpose, the invention adopts the technical scheme that achnatherum splendens is smashed and dried; a small quantity of water is added into a certain quantity of grass powder; the pH value is adjusted to 7.5 to 10.5 with a 0.1 M sodium hydroxide solution; reaction is carried out at 120 to 150 DEG C for 60 to 80 minutes while stirring is carried out unceasingly; after reaction, a certain quantity of bacillus licheniformis S1 is added; lactose is taken as a medium; uniform stirring, suction filtration, washing and drying are carried out to obtain the mixture.

Description

technical field [0001] The invention relates to the field of adsorption of heavy metal ions, in particular to a mixture of modified grass fiber and bacterium capable of adsorbing heavy metals. Background technique [0002] In recent years, with the rapid development of industrialization, the use of heavy metals has become more and more extensive, and the accompanying heavy metal pollution has become more and more serious. [0003] Frequent outbreaks of pollution accidents will destroy the normal physiological and metabolic activities of organisms, and even produce "three causes" (carcinogenic, teratogenic, and mutagenic) substances, which are extremely harmful to organisms and even affect generations. The increasing and harmfulness of heavy metal pollution load has aroused widespread concern of environmental scholars around the world, and heavy metal treatment technology has become a research hotspot for scientists. [0004] The existing traditional heavy metal treatment te...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30
Inventor 不公告发明人
Owner QINGDAO KEWEIYUAN ENVIRONMENTAL PROTECTION TECH
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