Palm Oil Fuel Ash (POFA) as an Innovative Material for Arsenic Removal from Mining Effluent

Abstract

Arsenic is toxic element, accumulate in the environment as main contaminant in aqueous waste stream. This study aimed to analyze the capability of raw palm oil fuel ash (pofa) as a potential adsorbent to remove arsenic contamination in the wastewater of mining effluent. Technology applied in this study was adsorption followed by precipitation. The maximum arsenic removal percentage of 100 % and a maximum adsorption capacity up to 0.224 mg/g was discovered.The results indicate that the method for arsenic removal from wastewater using raw pofa was effective, simple and lowcost to apply.

Mining wastewater treatment technologies and resource recovery techniques: A review

“…The highly toxic and strong carcinogenicity of As has been the main drive behind numerous treatment methods investigated. Bio-adsorbents (palm oil fuel ash (POFA) [ 115 ] and chitosan [ 116 ]), submerged aquatic plants ( Egeriadensa , and Hydrilla verticillata, Cabomba piauhyensis ) [ 117 ] and metal-organic frameworks integrated with iron nanoparticles [ 118 , 119 ], and birnessite [ 120 ] are some of the materials utilized for the adsorption of As. Iron nanoparticles were used for modification of ZIF-8 MOF and chitosan, and the interest in Fe NPs use can be attributed to their excellent magnetic properties, large surface area, sufficient active sites, and outstanding adsorption towards As [ 116 , 118 , 119 ].…”