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

J Hazard Mater. 2009 Jun 15;165(1-3):266-70. doi: 10.1016/j.jhazmat.2008.09.116. Epub 2008 Oct 7.


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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Animals
  • Bombyx*
  • Fuel Oils*
  • Oils / isolation & purification*
  • Plant Oils / isolation & purification
  • Water Purification / methods*


  • Fuel Oils
  • Oils
  • Plant Oils