Study of adsorption of Disperse Red 1 and Disperse Blue 3 from their aqueous solutions using atappelgate clay, atappelgate-urea complex and atappelgate-urea-formaldehyde polymer. Abbas Noor Muhammad

الملخص

In this work a study was carried out to estimate the ability of Attapulgite,
Attapulgite-urea complex and attapulgite– urea-formaldehyde polymer as a new
adsorbent for DR1 and DB3.This technique has been utilized to construct the relation
between amount of adsorbent and aquilibrium concentration (Isotherms) .The shape of
the isotherm obtained from adsorption of (DR1) and (DB3) on (AT,AUC,AUF) was
found to be comparable in all cases to the frundlich equation and were similar to Sshape.
The adsorption quantity were determined as a function of amount of adsorbents
(AT,AUC,AUF), (DR1) concentration ,pH value, shaking equilibrium contact time
and presence of different salts media. The adsorption quantities were increased with
an endothermic and chemicals adsorptions processes for (DR1). The adsorption
quantities were decreased with an exothermic and physical adsorptions processes for
(DB3).