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Abstract

Drying is an energy-intensive unit operation and future sludge dryers should be able to take advantage of the secondary energy of industrial environments. This work reports the use of a pilot cyclone for drying biosludge at low temperatures and simulating the use of secondary waste heat. The pilot-scale experiments were performed according to an experimental design and the results interpreted using principal components and multiple linear regression. The dry solids content of processed sludge increased from 9 to 19-68% during the experiments with a predicted energy consumption of

Keywords

Biosolids; Convective drying; Process integration; Regression modelling; Response surface methodology; Waste heat

Published in

Applied Thermal Engineering
2017, volume: 116, pages: 792-798

SLU Authors

Global goals (SDG)

SDG7 Affordable and clean energy
SDG12 Responsible consumption and production

UKÄ Subject classification

Chemical Engineering
Energy Systems

Publication identifier

  • DOI: https://doi.org/10.1016/j.applthermaleng.2017.02.010

Permanent link to this page (URI)

https://res.slu.se/id/publ/79906