Paper Title:

Development of Porous Materials Using Sewage Sludge by Molten-Salt Method

Periodical Materials Science Forum (Volume 569)
Main Theme Eco-Materials Processing and Design IX
Edited by Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee
Pages 325-328
DOI 10.4028/www.scientific.net/MSF.569.325
Citation Yeong Seok Yoo et al., 2008, Materials Science Forum, 569, 325
Online since January, 2008
Authors Yeong Seok Yoo, Kyeong Ho Cheon, Jae Ik Lee, Beom Suk Kim, Woo Seob Shin, Jong Bo Kim
Keywords Artificial Soil, CEC, Molten Salt, Porous Material, Sewage Sludge
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This study is about the development of porous material which shapes Ø3~8mm bead with sewage sludge by molten-salt method. The development of porous material was conducted by 2 different processes. One is made by molding sewage sludge into beads with pelletizer and then coating the beads with molten-salt and lastly sintered at 1050°C, and the other is mixing sewage sludge with molten-salt which is using synthesized zeolite, and then molding the mixture into beads with pelletizer. The molded mixture is finally sintered at 1050°C. We evaluated the value of developed material as sorbent and artificial soil for tree-planning by analyzing surface area, distribution of pore size, and cation exchange capacity(CEC). According to the results, surface coated porous material have 92.8m2/g of surface area and CEC 98.9meq/100g and the mixture sewage sludge with molten-salt have 104.1m2/g of surface area and CEC 140.8meq/100g. Thus, developed porous material can be applied to various uses as sorbent and artificial soil.

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