Adsorption performance of coconut shell activated carbon for the removal of chlorate from chlor-alkali brine stream

Lakshmanan, S. and Murugesan, T. (2016) Adsorption performance of coconut shell activated carbon for the removal of chlorate from chlor-alkali brine stream. Water Science and Technology, 74 (12). pp. 2819-2831. ISSN 02731223

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Abstract

Activated carbon from coconut shell was used to investigate the adsorption of chlorate from a chloralkali plant's brine stream. The effect of pH, flowrate, chlorate and chloride concentration on the breakthrough curves were studied in small-scale column trials. The results obtained show enhanced adsorption at low flowrates, higher chlorate concentrations, and at a pH of 10. These studies show that introducing an activated carbon adsorption column just before the saturator would remove sufficient quantities of chlorate to allow more of the chlor-alkali plant's brine stream to be reused. From column dynamic studies, the Thomas model showed close approximation when the chlorate in the effluent was higher than breakthrough concentrations and there was close correlation at high influent concentration. The qo (maximum adsorption capacity) values were close to those obtained experimentally, indicating close representation of the breakthrough curve by the Thomas model. © IWA Publishing 2016.

Item Type: Article
Additional Information: cited By 7
Uncontrolled Keywords: Activated carbon; Adsorption; Effluents, Adsorption performance; Breakthrough; Breakthrough curve; Chlor-alkali; Chlor-alkali plants; Chloride concentrations; Coconut shells; Effect of pH; Small scale; Thomas models, Chlorine compounds, activated carbon; alkali; chlorate; chloride; chlorine; hydrochloric acid; sodium chlorate; alkali; brine; charcoal; chlorate; inorganic salt, activated carbon; adsorption; breakthrough curve; brine; chloride; concentration (composition); correlation; effluent; performance assessment; pH; pollutant removal, adsorption; Article; coconut; pH; adsorption; chemistry; isolation and purification; procedures; sewage, Adsorption; Alkalies; Charcoal; Chlorates; Cocos; Salts; Waste Disposal, Fluid
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:18
Last Modified: 09 Nov 2023 16:18
URI: https://khub.utp.edu.my/scholars/id/eprint/6548

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