Utilization of silkworm cocoon waste as a sorbent for the removal of oil from water.
The aim of this study is to investigate the utilization of silkworm cocoon waste, such as pierced or stained cocoons, as a sorbent material for the removal of motor and vegetable oils from water. The oil-sorption capacity, rate and reusability of the material were evaluated. The results show the high sorption capacity of the silkworm cocoon waste sorbent (42-52 g(oil)/g(sorbent) for motor oil and 37-60 g(oil)/g(sorbent) for vegetable oil). The oil sorbed onto the material could be recovered by squeezing the sorbent, and the squeezed material showed an oil-sorption capacity over 15 g(oil)/g(sorbent). We concluded that the material shows a high performance as a low cost and environmental friendly sorbent for the removal of oil from water.
Moriwaki
Hiroshi
H
Division of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Tokida, Ueda, Japan. moriwaki@shinshu-u.ac.jp
Kitajima
Shiori
S
Kurashima
Masahiro
M
Hagiwara
Ayaka
A
Haraguchi
Kazuma
K
Shirai
Koji
K
Kanekatsu
Rensuke
R
Kiguchi
Kenji
K
D000327:Adsorption; D000818:Animals; D012831:Bombyx; D005648:Fuel Oils; D009821:Oils / Q000302:isolation & purification*; D010938:Plant Oils / Q000302:isolation & purification; D018508:Water Purification / Q000379:methods*
D005648:Fuel Oils; D009821:Oils; D010938:Plant Oils