Solar drying and thermodynamic sorption properties of phosphate sludge downstream of mine waste reclamation processes
作者： Issam Salhi , Said Doubabi , Gilles Flamant , Naji Abdenouri , Hamid Mazouz
DOI: 10.1016/J.MATPR.2021.03.136
关键词:
摘要: Abstract Phosphate sludge generated at the end of phosphate enrichment operations can be reused after being subject to drying processes. For efficient treatment and also for saving storage, hygroscopic properties have determined. In this paper, adsorption desorption behaviors were studied. The in a hybrid solar dryer requires between 90 min 60 °C 180 min 40 °C. isosteric energy was calculated from experimental tests varies 2 kJ/mol 25 kJ/mol respectively wetted dried product. From moisture content evolution, computed water diffusivity inside tailing 1.70 10-7 m2/s 30 °C reach 2.49 60 °C.
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