METHOD OF DEWATERING AQUEOUS WASTE SLUDGE

METHOD OF DEWATERING AQUEOUS WASTE SLUDGE

METHOD OF DEWATERING AQUEOUS, WASTE SLUDGE A method of dewatering proteinaceous aqueous waste sludge having a high fat content from food cannery waste water wherein the solids concentration of the sludge is increased from about 10% to about 40% by weight is disclosed. The method comprises adjusting...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: DUNN, HOWARD J, SCHLEUSNER, OTTO F, FARR, M. PAUL
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:METHOD OF DEWATERING AQUEOUS, WASTE SLUDGE A method of dewatering proteinaceous aqueous waste sludge having a high fat content from food cannery waste water wherein the solids concentration of the sludge is increased from about 10% to about 40% by weight is disclosed. The method comprises adjusting the pH of the sludge to the isoelectric point of the proteinaceous material present in the sludge, adding an organic polymer and separating the solids by high gravity centrifugation so that a concentration of about 20 to about 40% by weight is obtained. The process is particularly suitable for concentrating the solids of sludge derived from fish waste water.