Use of Monocalcium Phosphate Monohydrate for Chemical Immobilization of Heavy Metals from Copper Smelting Slag
Author:
SOULEY GARBA Mahamane Chapiou1, KAYA Erol2, SEYRANKAYA Abdullah2, TURAN Fatih2
Affiliation:
1. DOKUZ EYLUL UNIVERSITY, INSTITUTE OF SCIENCE 2. DOKUZ EYLUL UNIVERSITY, FACULTY OF ENGINEERING
Abstract
Monocalcium phosphate monohydrate (MCPM) with chemical formula of Ca(H2PO4)2.H2O is a water-soluble and powerful agent for metal ion immobilization (removal) in soil and water. The use of MCPM can, therefore, be considered as an innovative and effective way to remove the leachable heavy metals from copper smelting slag. This study aims to (1) characterize copper smelting slag and perform the batch precipitation tests using MCPM, (2) analyze the treated copper smelting slag (residue) by x-ray diffraction (XRD) and (3) elucidate the mechanism of MCPM on leachable heavy metal removal from slag.The experimental results demonstrated that MCPM effectively removes Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr and Zn metal ions from copper smelting slag under different MCPM concentrations and reaction times. In addition, the XRD analysis reveals the formation of insoluble metal phosphates such as Cd3(PO4)2, Cu2(PO4)2OH, Fe3(PO4)2, Mn3(PO4)2, Pb3(PO4)2 and Zn3(PO4)2 in the residue of copper smelting slag.
Publisher
Deu Muhendislik Fakultesi Fen ve Muhendislik
Reference35 articles.
1. [1] Briffa, J., Sinagra, E., Blundell, R. 2020. Heavy Metal Pollution in the Environment and their Toxicological Effects on Humans, Heliyon, Elsevier, Cilt. 6, 9s, e04691. 2. [2] Masindi, V., Muedi, K. L. 2018. Environmental Contamination by Heavy Metals, Heavy Metals, 10s,115-132. Doi:10.5772/intechopen.76082. 3. [3] Musilova, J., Arvay, J., Vollmannova, A., Toth, T., Tomas, J. 2016. Environmental Contamination by Heavy Metals in Region with Previous Mining Activity, Bulletin of Environmental Contamination and Toxicology, Cilt. 97, 4s, 569-575. Doi: 10.1007/s00128-016-1907-3. 4. [4] Quina, M. J., Bordado, J. C. M., Quinta-Ferreira, R. M. 2010. Chemical Stabilization of Air Pollution Control Residues from Municipal Solid Waste Incineration, Journal of Hazardous Materials, Cilt. 179, 1–3s, 382–392. Doi: 10.1016/j.jhazmat.2010.03.016. 5. [5] Aide, M., Aide, C., Braden, I., Necas, K. 2019. Lead Immobilization using Triple Superphosphate in Impacted Floodplain Soils in East-Central Missouri (USA), International Journal of Applied, Cilt. 14, 2s, 93–105.
|
|