Open AccessInfluence of heating and moisture content on sludge drying process
Author(s) -
M Flori,
D Miloştean
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1426/1/012056
Subject(s) - vaporization , water content , moisture , volume (thermodynamics) , materials science , environmental science , process (computing) , pulp and paper industry , waste management , chemistry , composite material , thermodynamics , geotechnical engineering , engineering , physics , organic chemistry , computer science , operating system
Drying is one of the most efficient processes to reduce sludge volume by lowering moisture content. Vacuum filters are equipment suitable for sludge drying in small wastewater treatment plants. It is known that by reducing pressure in the filter, the vaporization process begins at lower temperature. The aim of this study is to estimate the values of liquid (free water) and gaseous (air) phase ratios in sludge cake during vacuum drying. Numerical results in function of heating temperature and cake initial moisture content are estimated by finite element analysis in a central point situated on cake surface.