Method of Modified Corncob Adsorbing Heavy Metal Ions from Water

Ri Hui Liu; Shuo Deng; Jiang Wei Chen; Bin Hui Jiang

doi:10.4028/www.scientific.net/AMR.955-959.2458

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 955-959Method of Modified Corncob Adsorbing Heavy Metal...

Method of Modified Corncob Adsorbing Heavy Metal Ions from Water

Abstract:

Experiment used the microwave and the adjustment of pH to modify corncob to adsorb heavy metal ions (Zn²⁺, Pb²⁺) from Water. In order to find out the best adsorption condition on the liquor which concentrations of Zn²⁺ and Pb²⁺ were 30 mg/L respective, the experiment used method of control variables and the modified corncob adsorption rate of Zn²⁺ was the reference index. The results indicated that when corncob diameter, dosage, absorbing time, shaking speed and the pH value of liquor zinc chloride were 1.5mm, 20mg/L, 30min, 180rpm and 6, respectively, the adsorption rate of Zn²⁺ and Pb²⁺ reached the highest by 76.67% and 98.54%. The results showed that modified corncob adsorption rate of Zn²⁺ and Pb²⁺ were more than 80% and 98% at low concentrations. In conclusion, modified corncob had a good adsorption property of heavy metal ions in water.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

2458-2462

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.2458

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Online since:

June 2014

Authors:

Ri Hui Liu, Shuo Deng, Jiang Wei Chen, Bin Hui Jiang*

Keywords:

Adsorption, Corncob, Heavy Metal Ion, Microwave

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* - Corresponding Author

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