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Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):

C. Lampert, M. Zessner, H. Kroiss:
"Sewage sludge composition - a multifunctional information";
Vortrag: IWA Specialist Conference `Moving Forward - Wastewater Biosolids Sustainability: Technical, Managerial and Public Synergy´, Moncton, New Brunswick, CANADA; 24.06.2007 - 27.06.2007; in: "Manuscripts", (2007), 7 S.



Kurzfassung englisch:
Analysis of sewage sludge composition can be used to monitor receiving water pollution if the transfer
coefficients for the waste water treatment processes for the pollutants are determined. Further a partitioning between
a base load of substances emitted continuously over the year by households, industry and trade and loads emitted
during wet weather conditions is possible. Rain water discharge contains atmospheric deposition, corrosion products,
abrasion of tyres, brakes and asphalt, etc. At the Vienna Waste Water Treatment Plant three sampling campaigns
were carried out. "Material balances" for Al, Ag, Cu, Cd, Hg, Pb, Zn, Cr und P for the whole waste water treatment
process were established. Removal rates of the plant were highest for Al and Pb (>90%) and lowest for Zn (< 60%).
Flow conditions significantly impact the total loads of Al, Cu, Zn, Ag, Cd and P. About 20% of the annual Zn-load
stems from surface runoff.
Based on these results a monitoring concept has been developed and is now in a testing phase. The concept will
enable to monitor the efficiency of source control for e.g. heavy metals discharged from industry and long term changes
caused by emissions from surface runoff (construction materials, traffic, deposition, etc.).

Schlagworte:
sludge; heavy metals; removal; monitoring

Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.