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Adsorption of phosphate from domestic wastewater treatment plant effluent onto the laterites in a hydrodynamic column

Fulazzaky, Mohamad Ali and Khamidun, Mohd Hairul and Md Din, Mohd Fadhil and Mohd Yusoff, Abdull Rahim (2014) Adsorption of phosphate from domestic wastewater treatment plant effluent onto the laterites in a hydrodynamic column. Chemical Engineering Journal, 258. pp. 10-17. ISSN 13858947

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High concentration of phosphate (PO3- 4) released from wastewater treatment plant effluent (WWTPE) can negatively impact aquatic ecosystems and human health. Even though adsorption techniques have been widely used to remove PO3- 4 from waters, an empirical model used to describe the adsorption of PO3- 4 onto a porous material is still not yet fully understood. In this study, the empirical models of bed depth service time (BDST), Thomas and mass transfer factor (MTF) are used to scrutinize the adsorption behaviors of PO3- 4 removal from a domestic WWTPE onto the granular laterites applied to a hybrid plug flow column reactor. Despite the applications of Thomas and MTF model are verified suitable for use with general-purpose data models, the BDST is only applicable to model the data of monitoring PO3- 4 after seeing a more than 50% outflow. The dynamic adsorption capacity, adsorption rate constants and equilibrium solute uptake are determined. The resistance of mass transfer for the adsorption of PO3- 4 onto granular laterites in aqueous solution before breakthrough occurred to continue until the outflow reaches at certain percentage is only dependent on porous diffusion. The application of experimentally verified adsorption data binding with three different models can make significant contributions to improving environmental quality.

Item Type: Article
Uncontrolled Keywords: Adsorption; empirical adsorption model; hybrid plug flow column reactor; laterite; phosphate; domestic wastewater treatment plant effluent
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 25 Sep 2018 08:21
Last Modified: 25 Sep 2018 08:21
URI: http://eprints.uthm.edu.my/id/eprint/10411
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