REMOVAL OF HEAVY METALS FROM SYNTHETIC ACIDIC MINE WATER USING RECYCLED AGGREGATES

Acid mine drainage (AMD), a highly acidic and sulfate (SO42-)-rich solution, is an environmental concern related to the release of metal-containing wastewater from mining areas into environment. In this study, recycled aggregates (RA) produced concrete debris were used in treatment water contaminated with heavy metals. For model synthetic pH 2.31, SO42- iron (Fe) concentrations 5200 mg L-1 700 L-1, respectively, RA increased value 11.18 reduced Fe by 90.51% 100%, at RA/AMD ratio 100 after 300 minutes shaking room temperature batch experiments. The test results also showed that 100% copper (Cu), zinc (Zn), manganese (Mn), silver (Pb) cobalt (Co) removed time. This study demonstrates have significant potential neutralize acidity remove metals AMD, serious problem for ecological systems health.