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      Utilization of silkworm cocoon waste as a sorbent for the removal of oil from water.

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          Abstract

          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.

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          Author and article information

          Journal
          J. Hazard. Mater.
          Journal of hazardous materials
          Elsevier BV
          1873-3336
          0304-3894
          Jun 15 2009
          : 165
          : 1-3
          Affiliations
          [1 ] Division of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Tokida, Ueda, Japan. moriwaki@shinshu-u.ac.jp
          Article
          S0304-3894(08)01466-0
          10.1016/j.jhazmat.2008.09.116
          19008047

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