Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8130029 | Ultrasonics | 2018 | 8 Pages |
Abstract
This paper describes work carried out to identify promising ways to efficiently enhance the dewatering and drying of sewage sludge. Available dewatering approaches were reviewed and experiments were carried out to examine the relative effects of temperature, atmospheric pressure, and high-power ultrasound. The high-power ultrasound approach seemed to be particularly effective. The mechanisms involved include atomization, microstructural effects, cavitation, and the sponge effect, which work to reduce both internal and external resistances. Applied in the right way, ultrasound could become a very effective way to enhance mechanical dewatering.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
Mojtaba Mobaraki, R. Scott Semken, Aki Mikkola, Juha Pyrhönen,