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Heavy metal adsorbent prepared from strong oxide modified achnatherum splendens

A technology of Achnatherum splendens and oxide, which is applied in the field of heavy metal ion adsorption, can solve the problems of harsh conditions and high cost, and achieve the effects of stable performance, short reaction time and simple preparation method

Inactive Publication Date: 2014-09-24
QINGDAO KEWEIYUAN ENVIRONMENTAL PROTECTION 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 kind of heavy metal adsorbent prepared by modifying Achnatherum splendens with strong oxides, so as to overcome the disadvantages of harsh conditions and high cost in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Grind and dry Achnatherum splendens, take one part by weight of grass powder, add a little water, add five parts by weight of potassium permanganate, adjust the pH value to 7.5 with 0.1M sodium hydroxide solution, and react at 50 degrees for 1 hour , this process is completed with constant stirring. After the reaction is completed, the heavy metal adsorbent product is obtained by suction filtration, washing and drying.

Embodiment 2

[0016] Grind and dry Achnatherum splendens, take one part by weight of grass powder, add a little water, add five parts by weight of potassium permanganate, adjust the pH value to 9.0 with 0.1M sodium hydroxide solution, and react at 65 degrees for 3 hours , this process is completed with constant stirring. After the reaction is completed, the heavy metal adsorbent product is obtained by suction filtration, washing and drying.

Embodiment 3

[0018] Grind and dry Achnatherum splendens, take one part by weight of grass powder, add a little water, add five parts by weight of potassium permanganate, adjust the pH value to 10.5 with 0.1M sodium hydroxide solution, and react at 80 degrees for 4 hours , this process is completed with constant stirring. After the reaction is completed, the heavy metal adsorbent product is obtained by suction filtration, washing and drying.

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PUM

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Abstract

The invention aims at providing a heavy metal adsorbent prepared from strong oxide modified achnatherum splendens. According to the technical scheme for achieving the aim, the heavy metal adsorbent is prepared by the following steps: grinding and drying the achnatherum splendens; fetching a weight part of achnatherum splendens powder, adding a little water and certain amount of potassium permanganate; adjusting the pH value to 7.5-10.5 with 0.1M sodium hydroxide solution; reacting for 1-4 hours at 50-80 DEG C, wherein the process is finished in continuous stirring; after the reaction, performing suction filtration, washing and drying to obtain the product of the heavy metal adsorbent.

Description

technical field [0001] The invention relates to the field of heavy metal ion adsorption, in particular to a heavy metal adsorbent prepared by modifying Achnatherum splendens with strong oxides. 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 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24
Inventor 不公告发明人
Owner QINGDAO KEWEIYUAN ENVIRONMENTAL PROTECTION TECH
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