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http://dx.doi.org/10.17137/Korrae.2014.22.2.44

Removal of Heavy Metal in Wastewater with Coffee Grounds  

Shin, Hyun-Gon (Dept. of Energy & Environmental Engineering, Shinhan University)
Kim, Choong-Gon (DOHWA Engineering Co., Ltd.)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.22, no.2, 2014 , pp. 44-49 More about this Journal
Abstract
In order to remove the heavy metals from synthetic wastewater containing Pb, Cr, and Cd, the experiment was conducted with a variety of concentration and pH by using the washed and dried coffee grounds as adsorbent. Almost of the heavy metals were removed in thirty minutes and the removal efficiency was maximized to the 80 percents following the different pH conditions. Furthermore, in the case of Cr, the removal efficiency was declined with the increasing of pH. As a result of this study, coffee grounds is proved to be a very good adsorbent to remove the heavy metals.
Keywords
Coffee grounds; Heavy metal; Wastewater; Adsorbent;
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