期刊
WATER RESEARCH
卷 35, 期 8, 页码 2081-2086出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0043-1354(00)00473-5
关键词
conductivity; sulphate-reducing bacteria; acid mine drainage; treatment
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 bur 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. (C) 2001 Elsevier Science Ltd. All rights reserved.
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