Bio char filter was fabricated from rice husk and used for purifying polluted air. In one cubic-meter of chamber, the reusable filter decreases TMA and H2S concentration from 400 ppm to almost 0 ppm in 30 min and in 15 min, respectively. This paper was submitted to 2017 KEI International Paper & Idea Competition and selected as KEI Finalists (idea).
Author: Nam, Hoseok
Date: 28th Dec. 2017