Universiti Teknologi Malaysia Institutional Repository

A comparative study on dynamic Hg(II) and MeHg(II) removal by functionalized agrowaste adsorbent: breakthrough analysis and adsorber design

Saman, Norasikin and Kong, Helen and Mohtar, Safia Syazana and Johari, Khairiraihanna and Mansor, Azmi Fadziyana and Hassan, Onn and Ali, Noorhalieza and Mat, Hanapi (2019) A comparative study on dynamic Hg(II) and MeHg(II) removal by functionalized agrowaste adsorbent: breakthrough analysis and adsorber design. Korean Journal of Chemical Engineering, 36 (7). pp. 1069-1081. ISSN 0256-1115

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s11814-019-0285-z

Abstract

The adsorption dynamics of inorganic mercury, Hg(II) and organic methylmercury, MeHg(II) removal by low-cost reactive agrowaste adsorbents namely CP-Pure, CP-MPTES and CP-RR was investigated in a fixed-bed adsorber. The results show that the breakthrough and saturation times were delayed with decreasing flow rate (F) and initial concentration (Co), and increasing bed height (Z). The Hg(II) possessed better adsorption performance than MeHg(II). The isotherm and kinetic model analyses of adsorption data followed the Temkin isotherm and the pseudosecond order kinetic models, respectively. The breakthrough curve was simulated well by the Thomas and Yoon-Nelson models, and then was further used for scale-up studies. The empty bed contact time (EBCT) concept was successfully demonstrated for the adsorber design and scale-up studies. The regeneration studies showed that the regenerated CP-Pure and CP-MPTES have a high regeneration efficiency up to third adsorption cycle.

Item Type:Article
Uncontrolled Keywords:fixed-bed, inorganic mercury, organic mercury
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:88818
Deposited By: Yanti Mohd Shah
Deposited On:29 Dec 2020 12:25
Last Modified:29 Dec 2020 12:25

Repository Staff Only: item control page