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Remediation of Acid Mine Drainage with Sulfate Reducing Bacteria

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Laurel A. Schaider

Department of Environmental Health, Harvard School of Public Health, Boston, MA 02215

James F. Hauri

Department of Natural Sciences, Assumption College, Worcester, MA 01609

J. Chem. Educ., 2009, 86 (2), p 216

DOI: 10.1021/ed086p216

Publication Date (Web): February 1, 2009

Abstract

Sulfate reducing bacteria have been shown to be effective at treating acid mine drainage through sulfide production and subsequent precipitation of metal sulfides. In this laboratory experiment for undergraduate environmental chemistry courses, students design and implement a set of bioreactors to remediate acid mine drainage and explain observed changes in dissolved metal concentrations and pH. Using synthetic acid mine drainage and combinations of inputs, students monitor their bioreactors for decreases in dissolved copper and iron concentrations. This laboratory provides students with a wide range of potential learning objectives, including experimental design, data interpretation, and analytical techniques such as atomic absorption spectrophotometry, as well as learning about the potentially complex interactions between biological and chemical reactions present in many natural systems.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Environmental Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Applications of Chemistry

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Leaching of Silver from Silver-Impregnated Food Storage Containers
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Journal of Chemical Education2011 88 (10), 1407-1409
- Leaching of Silver from Silver-Impregnated Food Storage Containers
  James F. Hauri and Brian K. Niece
  Journal of Chemical Education2011 88 (10), 1407-1409
  The use of silver in commercial products has proliferated in recent years owing to its antibacterial properties. Food containers impregnated with micro-sized silver promise long food life, but there is some concern because silver can leach out of the ...
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