- Middle East Journal of Science
- Volume:8 Issue:2
- REMOVAL OF HEAVY METALS FROM SYNTHETIC ACIDIC MINE WATER USING RECYCLED AGGREGATES
REMOVAL OF HEAVY METALS FROM SYNTHETIC ACIDIC MINE WATER USING RECYCLED AGGREGATES
Authors : Gülşen TOZSİN
Pages : 77-83
Doi:10.51477/mejs.1102985
View : 65 | Download : 15
Publication Date : 2022-12-31
Article Type : Research Paper
Abstract :Acid mine drainage insert ignore into journalissuearticles values(AMD);, a highly acidic and sulfate insert ignore into journalissuearticles values(SO42-);-rich solution, is an environmental concern related to the release of metal-containing wastewater from mining areas into the environment. In this study, recycled aggregates insert ignore into journalissuearticles values(RA); produced from concrete debris were used in the treatment of acidic mine water contaminated with heavy metals. For a model synthetic acidic mine water with a pH of 2.31, SO42- and iron insert ignore into journalissuearticles values(Fe); concentrations of 5200 mg L-1 and 700 mg L-1, respectively, RA increased the pH value to 11.18 and reduced the SO42- and Fe concentrations by 90.51% and 100%, respectively, at RA/AMD ratio of 100 mg L-1 after 300 minutes of shaking at room temperature in batch experiments. The test results also showed that 100% of copper insert ignore into journalissuearticles values(Cu);, zinc insert ignore into journalissuearticles values(Zn);, manganese insert ignore into journalissuearticles values(Mn);, silver insert ignore into journalissuearticles values(Pb); and cobalt insert ignore into journalissuearticles values(Co); concentrations were removed at this ratio and shaking time. This study demonstrates that RA have significant potential to neutralize acidity and remove heavy metals from AMD, a serious problem for ecological systems and health.Keywords : Acid mine drainage, Heavy metals, Recycled aggregates, Batch experiment
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