Adsorptive removal of aniline by granular activated carbon from aqueous solutions with catechol and resorcinol.

Abstract:

:In the present paper, the removal of aniline by adsorption process onto granular activated carbon (GAC) is reported from aqueous solutions containing catechol and resorcinol separately. The Taguchi experimental design was applied to study the effect of such parameters as the initial component concentrations (C(0,i)) of two solutes (aniline and catechol or aniline and resorcinol) in the solution, temperature (T), adsorbent dosage (m) and contact time (t). The L27 orthogonal array consisting of five parameters each with three levels was used to determine the total amount of solutes adsorbed on GAC (q(tot), mmol/g) and the signal-to-noise ratio. The analysis of variance (ANOVA) was used to determine the optimum conditions. Under these conditions, the ANOVA shows that m is the most important parameter in the adsorption process. The most favourable levels of process parameters were T = 303 K, m = 10 g/l and t = 660 min for both the systems, qtot values in the confirmation experiments carried out at optimum conditions were 0.73 and 0.95 mmol/g for aniline-catechol and aniline-resorcinol systems, respectively.

journal_name

Environ Technol

journal_title

Environmental technology

authors

Suresh S,Srivastava VC,Mishrab IM

doi

10.1080/09593330.2011.592228

subject

Has Abstract

pub_date

2012-04-01 00:00:00

pages

773-81

issue

7-9

eissn

0959-3330

issn

1479-487X

journal_volume

33

pub_type

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