M. Krichevskaya et al., Photocatalytical oxidation of de-icing agents in aqueous solutions and aqueous extract of jet fuel, WATER SCI T, 44(5), 2001, pp. 1-6
Improper handling of jet fuel at abandoned military bases has resulted in h
eavy pollution of the soil and groundwater. Experimental research of photoc
atalytical oxidation (PCO) of jet fuel aqueous extract and aqueous solution
s of de-Icing agents was undertaken. The influence of different parameters
-pH, concentration of substances to be oxidised, presence of inorganic admi
xtures, effect of OH. radical generators - on the PCO of solutions of de-ic
ing agents and jet fuel aqueous extract was determined. The role of OH. rad
icals was found to be less important in determining the PCO rate. The PCO o
f organic pollutants was also investigated using a catalyst immobilised ont
o the surface of buoyant hollow glass microspheres. Attached titanium dioxi
de (TiO2) showed lower photocatalytical activity than when suspended in slu
rry, although it allows waters to be treated in simple shallow ponds withou
t intensive stirring. The biodegradability of aqueous solutions of de-icing
agents and jet fuel aqueous extract increased as PCO proceeded.