Influence of limestone as pre-treatment for sustainable acid mine drainage water quality management in Tanzania


  • Alexander Marwa School of Engineering and Environmental Studies, Ardhi University, P.O. Box 35176, Dar-es-Salaam
  • Lukuba Ngalya Sweya School of Engineering and Environmental Studies, Ardhi University, P.O. Box 35176, Dar-es-Salaam



acid mine drainage, heavy metals, limestone, sulphate


Acid Mine Drainage (AMD) is a major environmental problem due to low pH, high sulphate content, and dissolved metals. The aim of this study was to investigate the potential of limestone materials for the primary treatment of AMD water. Different doses of limestone were used in this study in the ratio of 0 g/1,000 mL as control, 20 g/1,000 mL, 40 g/1,000 mL, 60 g/1,000 mL, 80 g/1,000 mL, 100 g/1,000 mL, 200 g/100 mL (limestone/AMD) in a batch experiment of 1,500 mL plastic container. The results showed that the pH of AMD water improved to 8.6 at a dose of 100 g/1,000 mL, and the sulphate concentration decreased from 2,277 mg/L to 506 mg/L at a dose of 200 g/1,000 mL. The removal of Fe, Cu, Zn, Mn, and Ni at 200 g/1,000 mL was 99%, 92%, 68%, 96%, and 99%, respectively. The results of this study also showed that the Mn content decreased slowly as the limestone dosage increased. In addition, this study showed that limestone is a good neutralizing agent for increasing the pH of AMD water and reducing sulphate and dissolved metal concentrations. The results of this study indicated that limestone is suitable as a primary treatment agent for AMD water treatment in gold mines in Tanzania.


Aggarwal, C. 2017. A report on studies on acid mine drainage generation and its effect on mining equipment. Department of Chemical Engineering, BITS Pilani, Goa.

American Public Health Association (APHA). 1998. Standard Methods for the Examination of Water and Wastewater 6. American Public Health Association.

Brahaita, I.D., Ioan-Cristian, P.O.P., Baciu, C., Mihaiescu, R., Modoi, C., Popita, G. and Truta, R.M. 2017. The efficiency of limestone in neutralizing acid mine drainage-a laboratory study. Carpathian Journal of Earth and Environmental Sciences 12: 347-356.

Cole, M.B., Arnold, D.E. and Watten, B.J. 2001. Physiological and behavioral responses of stonefly nymphs to enhanced limestone treatment of acid mine drainage. Water Research 35(3):625-632.

Davis Jr, R.A., Welty, A.T., Borrego, J., Morales, J.A., Pendon, J.G. and Ryan, J.G. 2000. Rio Tinto estuary (Spain): 5000 years of pollution. Environmental Geology 39:1107-1116.

Davis, J.A., Fuller, C.C. and Cook, A.D. 1987. A model for trace metal sorption processes at the calcite surface: Adsorption of Cd2+ and subsequent solid solution formation. Geochimica et Cosmochimica Acta 51(6):1477-1490.

Dempsey, B.A. and Jeon, B.H. 2001. Characteristics of sludge produced from passive treatment of mine drainage. Geochemistry: Exploration, Environment, Analysis 1(1):89-94, doi:10.1144/geochem.1.1.89.

Doshi, S.M. 2006. Bioremediation of acid mine drainage using sulfate-reducing bacteria. US Environmental Protection Agency, Office of Solid Waste and Emergency Response and Office of Superfund Remediation and Technology Innovation 65:13-39.

Ferreira, B.C.S., Lima, R.M.F. and Leao, V.A. 2011. Sulfate removal from industrial effluents by precipitation. Engenharia Sanitária e Ambiental 16:361-368 (in Portuguese).

Fuchida, S., Suzuki, K., Kato, T., Kadokura, M. and Tokoro, C. 2020. Understanding the biogeochemical mechanisms of metal removal from acid mine drainage with a subsurface limestone bed at the Motokura Mine, Japan. Scientific Reports 10(1):20889.

Hammarstrom, J.M., Sibrell, P.L. and Belkin, H.E. 2003. Characterization of limestone reacted with acid-mine drainage in a pulsed limestone bed treatment system at the Friendship Hill National Historical Site, Pennsylvania, USA. Applied Geochemistry 18(11):1705-1721.

Hedin, R.S., Watzlaf, G.R. and Nairn, R.W. 1994. Passive treatment of acid mine drainage with limestone. Journal of Environmental Quality 23(6):1338-1345.

INAP. 2003. Treatment of sulphate in mine effluents. International Network for Acid Prevention, Utah.

Jha, M.K., Verma, A.K., Maheshwar, S. and Chauhan, A. 2015. Study of temperature effect on thermal conductivity of Jhiri shale from Upper Vindhyan, India. Bulletin of Engineering Geology and the Environment.

Jha, S. 2013. Removal of iron and sulphate from acid mine drainage and neutralization of pH by biological process. International Journal of Innovative Research and Engineering Science 2(9):20-31.

Leppert, D. 1990. Heavy metal sorption with clinoptilolite zeolite. Alternatives for treating contaminated soil and water. Mining Engineering 42(6):604-608.

Lopez-Fernandez, A., Lopez-Montenegro, G. and Romero-Sousa, J. 2003. Mining water treatment on the Odiel river. Medio Ambiente 44:52-55 (in Spanish).

Maree, J.P., Du Plessis, P. and Van der Walt, C.J. 1992. Treatment of acidic effluents with limestone instead of lime. Water Science and Technology 26(1-2):345-355.

Moodley, I., Sheridan, C.M., Kappelmeyer, U. and Akcil, A. 2018. Environmentally sustainable acid mine drainage remediation: Research developments with a focus on waste/by-products. Minerals Engineering 126:207-220.

Park, I., Tabelin, C.B., Jeon, S., Li, X., Seno, K., Ito, M. and Hiroyoshi, N. 2019. A review of recent strategies for acid mine drainage prevention and mine tailings recycling. Chemosphere 219:588-606.

Pradas, E.G., Sanchez, M.V., Cruz, F.C., Viciana, M.S. and Perez, M.F. 1994. Adsorption of cadmium and zinc from aqueous solution on natural and activated bentonite. Journal of Chemical Technology and Biotechnology 59(3):289-295.

Rezaie, B. and Anderson, A. 2020. Sustainable resolutions for environmental threat of the acid mine drainage. Science of The Total Environment 717:137211.

Rotting, T., Ayora, C. and Carrera, J. 2005. Passive treatment of acid mine drainage with high metal concentrations: results from experimental treatment tanks in the Iberian Pyrite Belt (SW Spain). Proceedings of the 9th International Mine Water Association Congress. Newcastle University.

Rotting, T.S., Thomas, R.C., Ayora, C. and Carrera, J. 2008. Passive treatment of acid mine drainage with high metal concentrations using dispersed alkaline substrate. Journal of Environmental Quality 37(5) :1741-1751.

Sibrell, P.L., Watten, B.J. and Boone, T. 2003. Remediation of acid mine drainage at the Friendship Hill National Historic Site with a pulsed limestone bed process. Hydrometallurgy - Fifth International Conference in Honor of Professor Ian Ritchie Volume 2: Electrometallurgy and Environmental Hydrometallurgy 1823-1836.

Silva, A.M., Lima, R.M. and Leao, V.A. 2012. Mine water treatment with limestone for sulfate removal. Journal of Hazardous Materials 221:45-55.

Skousen, J., Zipper, C.E., Rose, A., Ziemkiewicz, P.F., Nairn, R., McDonald, L.M. and Kleinmann, R.L. 2017. Review of passive systems for acid mine drainage treatment. Mine Water and the Environment 36:133-153.

Stumm, W. and Morgan, J.J. 2012. Aquatic Chemistry "Chemical Equilibria and Rates in Natural Waters". John Wiley & Sons.

Tabelin, C.B., Park, I., Phengsaart, T., Jeon, S., Villacorte-Tabelin, M., Alonzo, D. and Hiroyoshi, N. 2021. Copper and critical metals production from porphyry ores and e-wastes: A review of resource availability, processing/recycling challenges, socio-environmental aspects, and sustainability issues. Resources, Conservation and Recycling 170:105-610.

Tan, H., Zhang, G., Heaney, P.J., Webb, S.M. and Burgos, W.D. 2010. Characterization of manganese oxide precipitates from Appalachian coal mine drainage treatment systems. Applied Geochemistry 25(3):389-399.

Turingan, C., Singson, G., Melchor, B., Alorro, R., Beltran, A. and Orbecido, A. 2020. A comparison of the acid mine drainage (AMD) neutralization potential of low grade nickel laterite and other alkaline-generating materials. IOP Conference Series: Materials Science and Engineering 778(1):012142.

Turingan, C.O.A., Cordero, K.S., Santos, A.L., Tan, G.S.L., Tabelin, C.B., Alorro, R.D. and Orbecido, A.H. 2022. Acid mine drainage treatment using a process train with laterite mine waste, concrete waste, and limestone as treatment media. Water 14(7):1070.

Watten, B.J., Sibrell, P.L. and Schwartz, M.F. 2005. Acid neutralization within limestone sand reactors receiving coal mine drainage. Environmental Pollution 137(2):295-304.

Wu, H.H., Wu, D.Q. and Peng, J.L. 1999. Experimental study on the surface reactions of heavy metal ion with calcite. Acta Petrologica et Mineralogica 18:301-308.

Ya, Z., Zhou, L., Bao, Z., Gao, P. and Sun, X. 2009. High efficiency of heavy metal removal in mine water by limestone. Chinese Journal of Geochemistry 28:293-298.

Yao, Z. and Gao, P. 2007. Heavy metal research in lacustrine sediment: a review. Chinese Journal of Oceanology and Limnology 25(4):444-454.








How to Cite

Marwa, A., & Sweya, L. N. (2024). Influence of limestone as pre-treatment for sustainable acid mine drainage water quality management in Tanzania. Journal of Degraded and Mining Lands Management, 11(3), 6009–6015.



Research Article