DSpace
 

Researchspace >
CSIR Conferences >
CSIR Conference 2008 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/2573

Title: Effect of adapting cellulose degrading microorganisms to 25°C providing energy sources for biological sulphate removal
Authors: Greben, HA
Sigama, NJ
Keywords: Ambient temperature
Biological sulphate removal
One-stage hybrid reactor system
Fermentation microbes
Pre-treated mine water
Issue Date: Nov-2008
Citation: Greben, HA and Sigama, NJ. 2008. Effect of adapting cellulose degrading microorganisms to 25°C providing energy sources for biological sulphate removal. Science real and relevant: 2nd CSIR Biennial Conference, CSIR International Convention Centre Pretoria, 17 & 18 November 2008, pp 8
Abstract: Vast volumes of acid mine drainage (AMD) is still being generated in South Africa, due to decant from both active and closed mines. Research to find a cost effective, environmentally friendly treatment system to reduce the salinity and to neutralise the acidity of AMD is ongoing. The study presented here showed that high sulphate removal efficiencies were achieved applying the biological treatment technology, thereby using the degradation products of grass-cellulose as the carbon and energy sources. The process was conducted at 25°C, as opposed to 37°C described previously; using a one-stage hybrid reactor system, treating both sulphate-rich synthetic feed water and pre-treated AMD. The results showed that the fermentation microbes, originating from rumen fluid derived from cattle, could generate the carbon and energy sources for the sulphate reducing bacteria at 25°C. When comparing the results obtained at 25°C to those obtained at 37°C, it was observed that these were similar. However, at the higher temperature a faster flow-rate to the reactor was possible. The findings implied that the biological sulphate removal system described can be operated more economically at 25°C than at 37°C, as heating the reactor system can be omitted
Description: Science real and relevant: 2nd CSIR Biennial Conference, CSIR International Convention Centre Pretoria, 17 & 18 November 2008
URI: http://hdl.handle.net/10204/2573
Appears in Collections:CSIR Conference 2008

Files in This Item:

File Description SizeFormat
Sigama_2008.pdf112.58 kBAdobe PDFView/Open
Greben2_P_2008.pdf2.4 MBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback