Fu­ture Out­look

Chemical Industry Digest - - Waste Treatment -

As we can now un­der­stand that the wastew­a­ters gen­er­ated from the mine sites cause se­vere en­vi­ron­men­tal con­cerns not only for the aquatic life but also for hu­mans in­hab­it­ing those ar­eas. The raw waste­water gen­er­ated from the mine site is not only acidic but also con­tains dis­solved solids and met­als that are un­safe for generic use. There­fore, sev­eral treat­ment tech­niques have been prac­tised. How­ever, more re­search is un­der progress to pro­vide a po­ten­tial so­lu­tion. Cur­rently, the use of sul­phate re­duc­ing bac­te­ria (SRB) along with sul­phur ox­i­diz­ing bac­te­ria (SOB) has been an area of po­ten­tial re­search study for the safe treat­ment of AMD. We hope that more stud­ies in this re­gard will be avail­able in the com­ing fu­ture that will re­duce the sul­phate con­tent in AMD as well as aid in safe re­moval and re­cov­ery of heavy met­als.

Ac­knowl­edge­ments

The au­thors would like to ac­knowl­edge SERB, In­dia for the award of Na­tional Post Doc­toral Schol­ar­ship (File No. PDF/2017/000036) to Dr. San­deep Panda and the Direc­tor, IICT, Hyderabad, In­dia for ex­tend­ing the lab­o­ra­tory fa­cil­i­ties to con­duct re­search un­der the fel­low­ship scheme. Ref­er­ences

1. Panda S, Ak­cil A, Prad­han N, Deveci H (2015) Cur­rent sce­nario of chal­copy­rite bi­oleach­ing: A re­view on the re­cent ad­vances to its heap-leach tech­nol­ogy. Biore­sour Tech­nol 196: 694 – 706.

2. Ak­cil A, Koldas S (2006) Acid mine drainage (AMD): causes, treat­ment and case stud­ies. J Clean Prod 14: 1139–1145.

3. Chen L, Huang L, Mendez-Gar­cia C, Kuang J, Hua Z, Liu J, Shu W (2016) Mi­cro­bial com­mu­ni­ties, pro­cesses and func­tions in acid mine drainage ecosys­tems. Curr Opin Biotech 38: 150–158.

4. John­son DB, Hall­berg KB (2005) Acid mine drainage re­me­di­a­tion op­tions: A re­view. Sci To­tal Env 338: 3-14.

5. Vyawahre A, Rai S (2016) Acid Mine Drainage: A Case Study of An In­dian Coal Mine. In­ter­na­tional Jour­nal of Sci­en­tific Re­search in Sci­ence, Engi­neer­ing and Tech­nol­ogy (IJSRSET), 2 (2): 1297-1301.

6. https:// www. ibef. org/ down­load/ Met­als- and- Min­ingRe­port-July-2018.pdf; https://www.ibef.org /in­dus­try/met­als-and-min­ing-pre­sen­ta­tion.

7. http://www.groundtruthtrekking.org/ photo/ pyrite-weath­er­ing/

8. http://www.min­ingsafety.co.za/ news­con­tent/ 280/ Acid­mine-drainage-poses-risks

9. Source:http://www.in­fras­truc­turene.ws/2016/05/19/per­ma­nent-so­lu­tion-to-acid-mine-drainage-in-sight

10. Younger et al., 2002.

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