Potential of Agricultural Waste Material (Ananas cosmos) as Biosorbent for Heavy Metal Removal in Polluted Water

Abstract:

Conventional methods to remove heavy metals from polluted water are expensive and not environmentally friendly. Therefore, this study was carried out to investigate the potential of agricultural waste such as pineapple peel (Ananas Cosmos) as low-cost absorbent to remove heavy metals from synthetic polluted water. The results showed that Cd, Cr and Pb were effectively removed by the biosorbent at 12g of pineapple peels in 100 mL solution. The optimum contact time for maximum adsorption was found to be 90 minutes, while the optimum pH for the heavy metal’s adsorption was 9. It was demonstrated that with the increase of adsorbent dosage, the percent of heavy metals removal was also increased due to the increasing adsorption capacity of the adsorbent. In addition, Langmuir model show maximum adsorption capacity of Cd is 1.91 mg/g. As conclusions, our findings show that pineapple peel has potential to remove heavy metal from polluted water.

• Periodical: Materials Science Forum (Volume 1010)
• Pages: 489-494
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1010.489
• Online since: September 2020
• Authors: Abdul Hafidz Yusoff*, Rosmawani Mohammad, Mardawani Mohamad, Ahmad Ziad Sulaiman, Nurul Akmar Che Zaudin, Nursyahida Rosmadi, Fakihin Aqsa, Yusoff Mahani, Pao Ter Teo
• Keywords: Adsorption Rate, Biosorbent Capacity, Heavy Metals, Pineapple Peel, Wastewater Treatment

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