Use of conductivity to monitor the treatment of acid mine drainage by sulphate-reducing bacteria

Water Research
D Lyew, J Sheppard

Abstract

Measurements of electrical conductivity were obtained during treatment of acid mine drainage (AMD) by sulphate-reducing bacteria (SRB) in fed-batch column reactors. The advantages of this method are that it is non-invasive, non-destructive, and rapid, giving real-time information. Conductivity measurements were taken on an hourly basis throughout the course of several experiments in which the SRB were exposed to different quantities of fresh AMD. Simultaneous measurements were taken in a column in which no SRB were present but were also exposed to the same volumes of fresh AMD. As treatment of the AMD progressed, increases in conductivity were measured, generally localized to two regions in the gravel bed: the top and bottom 10 cm (4"). Changes in conductivity were not always coincident with changes in ORP and pH, indicating that conductivity may be a more sensitive tool for locating and monitoring specific zones of SRB activity.

References

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Citations

Aug 21, 2008·Journal of Industrial Microbiology & Biotechnology·Yu-Jie ChangChun-Hsiung Hung
Jul 5, 2012·TheScientificWorldJournal·Muhammad Aqeel AshrafIsmail Yusoff
Jan 28, 2006·Bioresource Technology·Yu-Jie ChangHsi-Jien Chen
Jan 29, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·E Pérez-OstaléJ Diaz-Curiel
May 8, 2008·Nature Reviews. Microbiology·Gerard Muyzer, Alfons J M Stams
Jan 14, 2020·Nanotechnology·Mon Oo YeeAmelia-Elena Rotaru
Oct 7, 2019·Environmental Science and Pollution Research International·Jose M DavilaJose A Grande
May 1, 2021·Environmental Science and Pollution Research International·Asif QureshiBjörn Öhlander

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