PROCESS FOR RECOVERING HUMIC SUBSTANCES FROM PERCOLATE ORIGINATING FROM URBAN SOLID REFUSE DUMPS OR THE LIKE AND HUMIC SUBSTANCES OBTAINED BY SAID PROCESS

A process for recovering humic substances from percolate originating from urban solid refuse dumps or the like during the maturation stage with pH between 7.0 and 10.0, characterised by: - subjecting the percolate to an evaporation-concentration stage at a temperature between 50 and 1 30°C and a pre...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	TONOLO GIORGIO
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	CHEMISTRY DISPOSAL OF SOLID WASTE FERTILISERS MANUFACTURE THEREOF METALLURGY ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RECLAMATION OF CONTAMINED SOIL SOIL SEPARATION TRANSPORTING 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:	A process for recovering humic substances from percolate originating from urban solid refuse dumps or the like during the maturation stage with pH between 7.0 and 10.0, characterised by: - subjecting the percolate to an evaporation-concentration stage at a temperature between 50 and 1 30°C and a pressure between 5 and 200 kPa, - subjecting the concentrated percolate containing the substances in solution to an acidification stage with inorganic acid to a pH between 1 and 3 to obtain precipitation of humic substances in the form of flocky solid, - separating the flocky humic substance solid from the liquid phase to obtain crude humic substances.