Authors:
Dmitry Porshnov, Maris Klavins
Book:
Proceedings of the 14th International Peat Congress
Venue:
Stockholm
Keywords:
hydrophobicity, low-temperature-pyrolysis, organosilicon-polymers, peat, sorbent
Documentfile:
Porshnov, Klavins 2012: Peat Based Sorbent For Oil Removal
Summary:
Theme IV. Chemical, physical and biological characteristics of peat
SUMMARY
Peat is a prospective material for oil sorption because it has such advantages as low cost, biodegradability and relatively high surface area and porosity. The most serious disadvantage of peat in this context is the hydrophilic character of this material
The hydrophilic properties of peat can be reduced by pyrolysis (at > 250 °C) and this process also leads to improvement of oil sorption capacity and velocity. However this method of modification only reduces the wetting ability of peat. Our results shows, that modification of thermally treated peat with organosilicon polymers causes a very significant improvement of the water repellency of its surface and ensures also high hydrocarbon sorption capacity.