Journal of Thermal Analysis and Calorimetry

, Volume 64, Issue 1, pp 281–291 | Cite as

Microcalorimetric Monitoring of Anaerobic Digestion Processes

  • A. Menert
  • M. Liiders
  • T. Kurissoo
  • R. Vilu
Article

Abstract

Microcalorimetry was used for monitoring anaerobic digestion processes of heavily polluted industrial waste waters (from cheese industry, distilleries, yeast plant). Interpreting the thermal power-time curves by HPLC, some sub-processes in batch cultures were tentatively identified as acidogenic, acetogenic and methanogenic. Processes underlying power-time curves up to 10 h were different for different wastes. In the case of cheese whey and distillery waste it was acidogenesis, in the case of sulfate containing waste - presumably reduction of sulfates. The effect of Biotreat 100 (BimKemi Eesti Ltd.), a preparation for removing H2S from waste water, was observed for these processes.

activated sludge anaerobic digestion microcalorimetry monitoring sulfate sulfide volatile fatty acids 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • A. Menert
    • 1
  • M. Liiders
    • 2
  • T. Kurissoo
    • 1
  • R. Vilu
    • 1
  1. 1.Tallinn Technical UniversityTallinnEstonia
  2. 2.AS BimKemi EestiTallinnEstonia

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