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Thisani, SK, Kallon, DVV and Byrne, PA (2022) Co-remediation of acid mine drainage and industrial effluent using passive permeable reactive barrier pre-treatment and active co-bioremediation. Minerals, 12 (5). ISSN 2075-163X
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Co-remediation of acid mine drainage and industrial effluent using passive permeable reactive barrier pre-treatment and active co-bioremediation.pdf - Published Version Available under License Creative Commons Attribution. Download (13MB) | Preview |
Abstract
This study evaluated the co-remediation performance of an active–passive process comprised of passive permeable reactive barrier acid mine drainage (AMD) pre-treatment and active anaerobic digestion treatment of AMD with effluent as a carbon source. The bioreactor was operated for 24 consecutive days with peak chemical oxygen demand (COD) and sulphate loading rates of 6.6 kg COD/m3/day and 0.89 kg SO42−/m3/day, respectively. The AMD pre-treatment was capable of removing 99%, 94% and 42% of iron (Fe), potassium (K), and aluminium (Al) concentrations, respectively. The biological treatment process was capable of removing 89.7% and 99% of COD and sulphate concentrations, respectively. The treated wastewater copper (Cu), sulphate (SO42−), and pH were within the effluent discharge limits and the potable water standards of South Africa. Fe, Al, manganese (Mn), nickel (Ni), and zinc (Zn) concentrations in the treated wastewater were marginally higher than the discharge and potable water limit with all concentrations exceeding the limit by less than 0.65 mg/L. The remediation performance of the process was found to be effective with limited operational inputs, which can enable low cost co-remediation.
| Item Type: | Article |
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| Uncontrolled Keywords: | 0403 Geology; 0502 Environmental Science and Management; 0914 Resources Engineering and Extractive Metallurgy |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QE Geology |
| Divisions: | Biological & Environmental Sciences (from Sep 19) |
| Publisher: | MDPI AG |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 06 May 2022 12:01 |
| Last Modified: | 06 May 2022 12:01 |
| DOI or ID number: | 10.3390/min12050565 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/16769 |
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