Partial least-squares near-infrared determination of hydrocarbons removed from polluted waters by using tanned solid wastes.
A new procedure has been developed for the determination of hydrocarbons retained in solid tanned wastes from polluted waters. The method uses near-infrared (NIR) transmission spectra obtained from leachates of the hydrocarbons with CCl4 using a partial least-squares (PLS) calibration model based on the use of mixtures of n-hexane, isooctane, and toluene diluted with CCl4. This methodology was applied to the evaluation of the absorption capacity of chrome shavings in water samples polluted with hydrocarbons, resulting in a maximum absorption capacity of 6.30 g hydrocarbons per g solid waste.
Gammoun
A
A
Faculté des Sciences--Université Hassan II Aïn Chock, Casablanca, Morocco.
Moros
J
J
Tahiri
S
S
Garrigues
S
S
de la Guardia
M
M