Department of Biotechnology and Chemistry, School of Engineering, Kinki University
Department of Biotechnology and Chemistry, School of Engineering, Kinki University
Department of Biotechnology and Chemistry, School of Engineering, Kinki University
出版者 名前
近畿大学工学部
出版社 カナ
キンキ ダイガク コウガクブ
出版社 ローマ字
Kinki daigaku kogakubu
出版年(from)
2008
出版年(to)
12-20
日付 作成日
2010-06-29
雑誌名
近畿大学工学部研究報告
雑誌名(英)
Research reports of the School of Engineering, Kinki University
号
42
ページ
1 - 5
発行年
2008-12-01
ISSN
0386491X
抄録
Recycle of rice husks as an adsorbent of metallic ion was studied. Cellulose contained in rice husks was phosphorylated by heating with a mixed solution of DMF (dimethylformamide), phosphoric acid and urea. Phosphorylation of rice husks was extremely improved by milling below 125 microns in a particle diameter and by washing with hot water. Amount of adsorption of metallic ion by rice husks was examined for pH, immersion duration or concent ration of solution. Rice husks phosphorylated showed similar characteristics to typical cellulose hosphorylated, while the adsorbed amount in a unit mass by rice husks constituted 35% of that of cellulose phosphorylated, since the cellulose content in rice husks was 30%.