Sains Malaysiana 48(4)(2019): 719–725

http://dx.doi.org/10.17576/jsm-2019-4804-03

 

Adsorption of Mercury(II) using Activated Carbon Produced from Bambusa vulgaris var. striata in a Fixed-Bed Column

(Penjerapan daripada Merkuri(II) menggunakan Karbon Teraktif yang Dihasilkan daripada Bambusa vulgaris var. striata dalam Kolum Lapisan Tetap)

 

EKA MARYA MISTAR¹, IDA HASMITA¹, TATA ALFATAH², ABRAR MUSLIM³ & MUHAMMAD DANI SUPARDAN³*

 

¹Department of Chemical Engineering, Serambi Mekkah, Banda Aceh, Indonesia

 

²Environment and Forestry Office of the Provincial Government of Aceh, Banda Aceh, Indonesia

 

³Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia

 

Received: 22 July 2018/Accepted: 11 February 2019

 

ABSTRACT

Pollution by mercury dissolved in aqueous media causes a crucial problem for health and environment. In this study, activated carbon from Bambusa vulgaris var. striata was produced by chemical activation using NaOH for mercury adsorption. The effects of mercury initial concentrations namely 50 and 100 mg/L on the breakthrough characteristics of the adsorption process were defined. The mechanism of the adsorption process through the fixed-bed column was fitted to the Thomas model. The activated carbon was characterized by scanning electron microscopy and energy-dispersive X-ray spectroscopy. The adsorption study with a continuous system and using the Thomas model showed that the highest adsorption capacity (q0) of mercury ions is 218.08 mg/g. It can be concluded that activated carbon from Bambusa vulgaris var. striata has a great potential to act as an adsorbent to remove mercury from water.

 

Keywords: Activated carbon; adsorption; Bambusa vulgaris var. striata; mercury; Thomas model

 

ABSTRAK

Pencemaran merkuri terlarut dalam air menyebabkan masalah kesihatan kritikal dan mencemarkan alam sekitar. Dalam kajian ini, karbon teraktif daripada Bambusa vulgaris var. striata dihasilkan melalui pengaktifan kimia menggunakan NaOH untuk penjerapan merkuri. Kesan kepekatan merkuri awal iaitu 50 dan 100 mg/L ke atas kejayaan proses penjerapan telah ditakrifkan. Mekanisme proses penjerapan melalui kolum lapisan tetap telah disesuaikan dengan Model Thomas. Karbon teraktif yang dicirikan melalui mikroskopi imbasan elektron dan spektroskopi serakan tenaga sinar-X. Kajian penjerapan dengan sistem yang berterusan dan menggunakan Model Thomas menunjukkan kapasiti penjerapan tertinggi (q0) ion merkuri adalah 218.08 mg/g. Maka disimpulkan bahawa karbon teraktif daripada Bambusa vulgaris var. striata berpotensi besar untuk bertindak sebagai penjerat untuk mengasingkan merkuri daripada air.

 

Kata kunci: Bambusa vulgaris var. striata; karbon; merkuri; model Thomas; penjerapan

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*Corresponding author; email: m.dani.supardan@unsyiah.ac.id