XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 3541
resulting in less metal being leached from the co-disposed
coal waste fractions. The performance in terms of the likeli-
hood prolong ARD prevention under aggressive oxidative
conditions was in the order of AGG-BLND IRR-BLND
UNINOC-BLND CONTROL-BLND within this
investigation. Interestingly, the UNINOC-BLND out-
performed the IRR-BLND during the SAR testing phase,
once again highlighting the importance of the inoculation
method. Future studies will focus on the ARD preventative
capacity of various packing configurations and the mecha-
nistic aspects related to calcite formation in these systems.
REFERENCES
Ait-Khouia, Y., Benzaazoua M., and Demers, I. 2021.
“Environmental Desulfurization of Mine Wastes
Using Various Mineral Processing Techniques: Recent
Advances and Opportunities.” Minerals Engineering
174 (October): 107225. doi: 10.1016/j.mineng
.2021.107225.
American Public Health Association. 1976. Standard
Methods for the Examination of Water and Wastewater.
14th Edition, American Public Health Association.
Bäckström, M., Sartz, L., Karlsson, S. et al. 2011.
“Prevention of ARD through Stabilization of Waste
Rock with Alkaline By-Products—Result from a
Meso-Scale Experiment Conclusions,” no. September:
2010–12.
Castro-Alonso, M.J., Montañez-Hernandez, L.E.,
Sanchez-Muñoz, M.A. et al. 2019. “Microbially
Induced Calcium Carbonate Precipitation (MICP)
and Its Potential in Bioconcrete: Microbiological and
Molecular Concepts.” Frontiers in Materials 6 (June):
1–15. doi: 10.3389/fmats.2019.00126.
Chen, X. and Achal, V. 2020. “Effect of Simulated
Acid Rain on the Stability of Calcium Carbonate
Immobilized by Microbial Carbonate Precipitation.”
Journal of Environmental Management 264 (March):
110419. doi: 10.1016/j.jenvman.2020.110419.
Choudhury, B.U., Malang, A., Webster, R. et al. 2017. “Acid
Drainage from Coal Mining: Effect on Paddy Soil and
Productivity of Rice.” Science of the Total Environment
583: 344–51. doi: 10.1016/j.scitotenv.2017.01.074.
Demers, I., Bussière, B., Benzaazoua, M. et a. 2008.
“Column Test Investigation on the Performance of
Monolayer Covers Made of Desulphurized Tailings to
Prevent Acid Mine Drainage.” Minerals Engineering 21
(4): 317–29. doi: 10.1016/j.mineng.2007.11.006.
Du, J., Qv, M., Zhang, Y. et al. 2020. “Simulated Sulfuric and
Nitric Acid Rain Inhibits Leaf Breakdown in Streams:
A Microcosm Study with Artificial Reconstituted Fresh
Water.” Ecotoxicology and Environmental Safety 196
(March): 110535. doi: 10.1016/j.ecoenv.2020.110535.
0
50
100
150
200
250
300
350
400
IRR-BLND AGG-BLND UNINOC-BLND CONTROL-BLND
Fe2+ Fe3+ Total Fe
Figure 2. The Fe2+, Fe3+, and Total Fe observed in the bioreactor effluent over the cementation
and 90-day SAR period
Fe
concentration
(mg/L)
resulting in less metal being leached from the co-disposed
coal waste fractions. The performance in terms of the likeli-
hood prolong ARD prevention under aggressive oxidative
conditions was in the order of AGG-BLND IRR-BLND
UNINOC-BLND CONTROL-BLND within this
investigation. Interestingly, the UNINOC-BLND out-
performed the IRR-BLND during the SAR testing phase,
once again highlighting the importance of the inoculation
method. Future studies will focus on the ARD preventative
capacity of various packing configurations and the mecha-
nistic aspects related to calcite formation in these systems.
REFERENCES
Ait-Khouia, Y., Benzaazoua M., and Demers, I. 2021.
“Environmental Desulfurization of Mine Wastes
Using Various Mineral Processing Techniques: Recent
Advances and Opportunities.” Minerals Engineering
174 (October): 107225. doi: 10.1016/j.mineng
.2021.107225.
American Public Health Association. 1976. Standard
Methods for the Examination of Water and Wastewater.
14th Edition, American Public Health Association.
Bäckström, M., Sartz, L., Karlsson, S. et al. 2011.
“Prevention of ARD through Stabilization of Waste
Rock with Alkaline By-Products—Result from a
Meso-Scale Experiment Conclusions,” no. September:
2010–12.
Castro-Alonso, M.J., Montañez-Hernandez, L.E.,
Sanchez-Muñoz, M.A. et al. 2019. “Microbially
Induced Calcium Carbonate Precipitation (MICP)
and Its Potential in Bioconcrete: Microbiological and
Molecular Concepts.” Frontiers in Materials 6 (June):
1–15. doi: 10.3389/fmats.2019.00126.
Chen, X. and Achal, V. 2020. “Effect of Simulated
Acid Rain on the Stability of Calcium Carbonate
Immobilized by Microbial Carbonate Precipitation.”
Journal of Environmental Management 264 (March):
110419. doi: 10.1016/j.jenvman.2020.110419.
Choudhury, B.U., Malang, A., Webster, R. et al. 2017. “Acid
Drainage from Coal Mining: Effect on Paddy Soil and
Productivity of Rice.” Science of the Total Environment
583: 344–51. doi: 10.1016/j.scitotenv.2017.01.074.
Demers, I., Bussière, B., Benzaazoua, M. et a. 2008.
“Column Test Investigation on the Performance of
Monolayer Covers Made of Desulphurized Tailings to
Prevent Acid Mine Drainage.” Minerals Engineering 21
(4): 317–29. doi: 10.1016/j.mineng.2007.11.006.
Du, J., Qv, M., Zhang, Y. et al. 2020. “Simulated Sulfuric and
Nitric Acid Rain Inhibits Leaf Breakdown in Streams:
A Microcosm Study with Artificial Reconstituted Fresh
Water.” Ecotoxicology and Environmental Safety 196
(March): 110535. doi: 10.1016/j.ecoenv.2020.110535.
0
50
100
150
200
250
300
350
400
IRR-BLND AGG-BLND UNINOC-BLND CONTROL-BLND
Fe2+ Fe3+ Total Fe
Figure 2. The Fe2+, Fe3+, and Total Fe observed in the bioreactor effluent over the cementation
and 90-day SAR period
Fe
concentration
(mg/L)