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Paper Information

Journal:   JOURNAL OF CHEMICAL HEALTH RISKS (JCHR)   2019 , Volume 9 , Number 1; Page(s) 75 To 86.
 
Paper: 

Removal of Chromium (VI) from Wastewater by Palm Kernel Shell-based on a Green Method

 
 
Author(s):  Razavi Mehr Maryam, Fekri Mohammad Hossein*, Omidali Faezeh, Eftekhari Noushin, Akbari adergani Behrouz
 
* Department of Chemistry, Ayatollah Boroujerdi University, Borujerd, Iran
 
Abstract: 
The potential of palm kernel shell, as agricultural waste, to remove Cr (VI) from aqueous solution was evaluated. Effective parameters such as pH (2– 8), temperature (20– 80 ° C), contact time (10-120 min), adsorbent concentration (0. 1– 1 g/L), and initial Cr (VI) concentration (10-100 mg/L) were all studied to attain the maximum removal efficiency. Results show the adsorption capacity increases as pH value decreases and the optimum pH value is pH= 2. 0. The other optimal conditions are temperature 40 ° C, contact time 45 min, adsorbent concentration 0. 5 g/L and initial Cr (VI) concentration 10 mg/L. The equilibrium data for chromate adsorption well fitted to Freundlich equation, with maximum adsorption capacity of 125 mg/g. This novel activated carbon derived from palm shell powder has been found to be effective for the removal of Cr (VI) and not noxious to the ecosystem.
 
Keyword(s): Activated Carbon,Adsorption capacity,Chromium (VI),Freundlich isotherm,Palm Kernel Shell
 
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