IMPULSE DRYING SLUDGE

In a new approach to energy-efficient sludge dewatering, sludge is contracted briefly under pressure by a hot surface. The steam generated at the interface between the sludge and the surface forces out some of the water in liquid form. Laboratory demonstrations with belt-pressed primary sludge from...

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Veröffentlicht in:	Water research (Oxford) 1998, Vol.32 (1), p.258-260
Hauptverfasser:	BANERJEE, SUJIT, MAHMOOD, TALAT, PHELAN, PAUL M., FOULKE, RUSSELL W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences dewatering Exact sciences and technology heat municipal Other industrial wastes. Sewage sludge Pollution primary pulse secondary Wastes
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	In a new approach to energy-efficient sludge dewatering, sludge is contracted briefly under pressure by a hot surface. The steam generated at the interface between the sludge and the surface forces out some of the water in liquid form. Laboratory demonstrations with belt-pressed primary sludge from a paper mill removed more than 20 additional percentage points of water. Corresponding values from municipal sludge and from a mixed primary/secondary industrial sludge were 10 and 15 additional percentage points, respectively. © 1998 Elsevier Science Ltd. All rights reserved
ISSN:	0043-1354 1879-2448
DOI:	10.1016/S0043-1354(97)00150-4