Qualitätsprobleme bei der Gewinnung von uferfiltriertem Grundwasser in Ungarn

✍ Scribed by László, F.

• Publisher: John Wiley and Sons
• Year: 1989
• Tongue: English
• Weight: 589 KB
• Volume: 17
• Category: Article
• ISSN: 0323-4320
• DOI: 10.1002/aheh.19890170415

✦ Synopsis

Qualitatsprobleme bei der Gewinnung von uferfiltriertem Grundwasser in Ungarn

Summary: I n Hungiqry a large proportion of the drinking-water demand is met by bank filtration. Especially the middle section of the Danube stretch is used for drinking-water supply, also for the capital Budapest (310 . 106 ms/a). The considerable pollutant load imported, anyhow, is increased by several Hungarian sources of contamination. The Danube has such a high self purifying capacity that, among other things, the annual COD-Mn load by the city of Budapest amounting to 140,000 t is degraded to such a level that the export of organic pollutants in the Danube from Hungary is not greater than the import. Heavy metals get into the bank filtrate through organic complexing agent,s. Also organochlorine compounds and their precursors were quantitatively determined. I n Budapest water is treated with ozone, activated carbon and open high-rate filtration.