@inproceedings{e4ef3bd8ec2244d39a74b0a908729882,
title = "Activated sludge drying in the pulp and paper industry by means of secondary energies",
keywords = "activated sludge, drying, partial vacuum evaporation, secondary energy, activated sludge, drying, partial vacuum evaporation, secondary energy, activated sludge, drying, partial vacuum evaporation, secondary energy",
author = "Ilkka Hippinen and Pekka Ahtila",
year = "2002",
language = "English",
pages = "s. EES18--22",
editor = "A. Oliveira and C. Afonso and S. Riffat",
booktitle = "1st International Conference on Sustainable Energy Technologies, Porto, Portugal, June 12-14 2002",
publisher = "University of Porto",
address = "Portugal",
}