Water Quality Changes during Riverbank Filtration in Budapest, Hungary

Autor: Zsuzsanna Nagy-Kovács, János Davidesz, Katalin Czihat-Mártonné, Gábor Till, Ernő Fleit, Thomas Grischek
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Water, Vol 11, Iss 2, p 302 (2019)
Druh dokumentu: article
ISSN: 2073-4441
DOI: 10.3390/w11020302
Popis: The paper gives an overview on the changes in water quality during riverbank filtration (RBF) in Budapest. As water from the Danube River is of high quality, no problems occur during regular operation of RBF systems. Additionally, water quality improved through the past three decades due to the implementation of communal wastewater treatment plants and the decline of extensive use of artificial fertilizers in agriculture. Algae counts are used as tracer indicators to identify input of surface water into wells and to make decisions regarding shutdowns during floods. RBF systems have a high buffering capacity and resistance against accidental spills of contaminants in the river, which was proven during the red mud spill in October 2010. The removal rate of microorganisms was between 1.5 log and 3.5 log efficiency and is in the same order as for other RBF sites worldwide.
Databáze: Directory of Open Access Journals