Adsorption Kinetics of Chloroform from Aqueous Solutions onto Activated Lignite
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Date
2013
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
WILEY
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
The lignite coal researched by this study was subjected to a two-stage activation process performed in the scope of obtaining active carbon from domestic resources. Activation and carbonization stages were used in the experiments. The modified lignite was produced by impregnating lignite with KOH and washing the activation product with 15% HCl solution after thermal treatment. Increasing KOH dosage also increased the removal efficiency. The variables investigated in adsorption experiments were contact time, initial concentration, pH, and sorbent dosage. Adsorption kinetics was fitted by using the pseudo-first-order equation, pseudo-second-order equation, and intra-particle diffusion. Isotherm modeling was carried out using Langmuir, Freundlich, and DubininRadushkevich equations. Selected target compound in this work is common environmental pollutant in waters. A commonly known effect of chloroform is its carcinogenic effect. Therefore, removal of these compounds from water is considerably important. Chloroform removal of 97% for was achieved by the use of Konya region activated lignite.
Description
Keywords
Adsorption, Carbonation, Disinfection, Modeling, Water pollutant
Journal or Series
CLEAN-SOIL AIR WATER
WoS Q Value
Q2
Scopus Q Value
Q3
Volume
41
Issue
1
