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Abstract

Biological wastewater treatment plants are required to meet stringent effluent standards. This goal could be met by continuously, monitoring the degradative capability of microbial consortia.
Calorimetric measurements have been thought useful for on-line studying biological activities of activated sludges. For this purpose, a new type of isothermal batch calorimeter has been developed with the support of EPFL. Lausanne. as a modification of the Mettler-Toledo RC1 calorimeter. The sensitivity of the instruments as increased up to 5-10 inW/1 '. which allows an accurate measurement of the small amount of heat involved biological processes (100-500 mW/1). A comparative study between calorimetry and respirometry is presented.

Additional information

Authors: LIGTHART J, European Commission, JRC, Environmental Institute, Water research and monitoring Unit;AULENTA, European Commission, JRC, Environmental Institute, Water research and monitoring Unit;BASSANI C, European Commission, JRC, Environmental Institute, Water research and monitoring Unit;TILCHE A, European Commission, research DG - Direction DI Key Action "Sustainable Management and quality of water"
Bibliographic Reference: Paper presented: Joint Research Centre, Environment Institute, Water Research and Monitoring Unit, Ispra (IT), 2000
Availability: European Commission, JRC, Environmental Institute, Water research and monitoring Unit, TP 730, 210202 Ispra (VA), IT
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