Next Article in Journal
Odikhinchaite, Na9Sr3[(H2O)2Na]Ca6Mn3Zr3NbSi (Si24O72)O(OH)3(CO3)·H2O, a New Eudialyte-Group Mineral from the Odikhincha Intrusion, Taimyr Peninsula, Russia
Next Article in Special Issue
Co-Disposal of Coal Gangue and Red Mud for Prevention of Acid Mine Drainage Generation from Self-Heating Gangue Dumps
Previous Article in Journal
A Review of In Situ Isotopic Studies of the Oklo and Bangombé Natural Fission Reactors Using Microbeam Analytical Techniques
Previous Article in Special Issue
Assessment of Native and Endemic Chilean Plants for Removal of Cu, Mo and Pb from Mine Tailings
Article

The Use of Mining Waste Materials for the Treatment of Acid and Alkaline Mine Wastewater

1
Institute of Microbiology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
2
Faculty of Geology, Geophysics and Environmental Protection, Department of Mineralogy, Petrography and Geochemistry, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(12), 1061; https://doi.org/10.3390/min10121061
Received: 17 October 2020 / Revised: 23 November 2020 / Accepted: 24 November 2020 / Published: 27 November 2020
The mining of metal ores generates both liquid and solid wastes, which are increasingly important to manage. In this paper, an attempt was made to use waste rocks produced in the mining of zinc and lead to neutralizing acid mine drainage and alkaline flotation wastewater. Waste rock is a quartz-feldspar rock of hydrothermal origin. It is composed of, besides quartz and potassium feldspar (orthoclase), phyllosilicates (chlorite and mica), and sulfides (chiefly pyrite). To determine its physicochemical parameters and their variability, acid mine water and flotation wastewater were monitored for 12 months. Acid mine drainage (AMD) is characterized by a low pH (~3), high zinc concentration (~750 mg·L−1), and high sulfate content (~6800 mg·L−1). On the other hand, the determinations made for flotation wastewater showed, among others, a pH of approximately 12 and ca. 780 mg·L−1 of sulfates. AMD and flotation wastewater neutralization by the waste rock was shown to be possible and efficient. However, in both cases, the final solution contained elevated concentrations of metals and sulfates. Premixing AMD with alkaline flotation wastewater in the first step and then neutralizing the obtained mixture with the waste rock was considered the best solution. The produced solution had a circumneutral pH. However, the obtained solution does not meet the legislative requirements but could be further treated by, for example, passive treatment systems. It is noteworthy that the proposed approach is low cost and does not require any chemical reagents. View Full-Text
Keywords: acid mine drainage; alkaline flotation wastewater; waste rock; mining waste material acid mine drainage; alkaline flotation wastewater; waste rock; mining waste material
Show Figures

Figure 1

MDPI and ACS Style

Retka, J.; Rzepa, G.; Bajda, T.; Drewniak, L. The Use of Mining Waste Materials for the Treatment of Acid and Alkaline Mine Wastewater. Minerals 2020, 10, 1061. https://doi.org/10.3390/min10121061

AMA Style

Retka J, Rzepa G, Bajda T, Drewniak L. The Use of Mining Waste Materials for the Treatment of Acid and Alkaline Mine Wastewater. Minerals. 2020; 10(12):1061. https://doi.org/10.3390/min10121061

Chicago/Turabian Style

Retka, Jacek, Grzegorz Rzepa, Tomasz Bajda, and Lukasz Drewniak. 2020. "The Use of Mining Waste Materials for the Treatment of Acid and Alkaline Mine Wastewater" Minerals 10, no. 12: 1061. https://doi.org/10.3390/min10121061

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop