Metal removal from primary sewage sludge by elution with HNO3 solutions

 
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1998 (EN)
Metal removal from primary sewage sludge by elution with HNO3 solutions (EN)

Vlyssides, AG (EN)
Zorpas, AA (EN)
Zorpas, GA (EN)

N/A (EN)

A sequential chemical extraction procedure [S.C.E.P] for the partitioning of Cd, Co, Cu, Cr, Fe, Mn, Ni, Pb and Zn has been applied to anaerobic stabilized primary sewage sludge [A.S.P.S.S] from Psittalia's wastewater treatment plant. The sludge was further treated with HNO3 in different concentrations and different contact time. 5%, 10% 15% and 20% v/v of HNO3 and for 10, 20 and 30 minutes of contact time have been applied. The acid extraction method is characterized from the fast removal of the metals. A sufficient metal amount, about 60% is removed by acid treatment (using 20% v/v HNO3). S.C.E.P. has been applied as well in the treated samples observing that the remaining metals are further stabilized. (EN)

journalArticle

sludge treatment (EN)
nitric acid (EN)
wastewater (EN)
sewage treatment (EN)
Acid extraction (EN)
metal extraction (EN)
Metals speciation (EN)
water treatment plant (EN)
Metals removal (EN)
Sewage sludge (EN)
sewage sludge (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Fresenius Environmental Bulletin (EN)

1998


INST LEBENSMITTELTECHNOLOGIE ANALYTISCHE CHEMIE (EN)



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