Competitive biosorption study of Fe(II) and Mn(II) from aqueous solution by Pleurotus spent mushroom compost in a fixed-bed column

• Published in: AIP Conference Proceedings
• Main Author: Kamarudzaman A.N.; Chay T.C.; Amir A.; Talib S.A.; Aziz R.A.; Jalil M.F.A.
• Format: Conference paper
• Language: English
• Published: American Institute of Physics Inc. 2019
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072651959&doi=10.1063%2f1.5126556&partnerID=40&md5=2b5739bb777cd6138aded91a2bf3cc3a
• ISSN: 0094243X
• DOI: 10.1063/1.5126556

A competitive biosorption study of Fe(II) and Mn(II) by Pleurotus spent mushroom compost were performed in a column operation mode. The biosorbent material was prepared from a mushroom cultivation farm. In this study, the flow rate, bed height and initial concentration of heavy metals were set at 1 mL/min, 300 mm and 50 mg/L, respectively. In competition biosorption, Mn(II) break through the column faster than Fe(II) due to its lower affinity for the biosorbent. The uptake capacity of Mn(II) also lower compared to Fe(II). An overshoot in the outlet Mn(II) concentration was observed and explained by competition biosorption between Fe(II) and Mn(II), whereby the higher Fe(II) affinity for the biosorbent displaced the weakly bound Mn(II) ions. © 2019 Author(s).