The use of carbonate-silica rock (opoka) to remove iron, manganese and indicator bacteria from groundwater

Autor: Marzec Michał, Pieńko Agata, Gizińska-Górna Magdalena, Pytka Aneta, Jóźwiakowski Krzysztof, Sosnowska Bożena, Kamińska Agnieszka, Listosz Agnieszka
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Water and Land Development, Vol 34, Iss 1, Pp 197-204 (2017)
Druh dokumentu: article
ISSN: 2083-4535
DOI: 10.1515/jwld-2017-0054
Popis: The study investigated the efficiency of removal of iron, manganese and indicator bacteria from potable groundwater by using carbonate-silica rock (opoka). The tests were performed in a laboratory in three filter columns supplied with water containing increased concentrations of iron and manganese. Two of the columns were filled with carbonate-silica rock with particle sizes of 2-5 mm; retention time for water in the columns was set at 1 h and 2 h. A third column was filled with 1-2 mm rock particles, with hydraulic retention time set at 1 h. High removal efficiencies were determined for iron, manganese and coliform bacteria and low removal efficiencies for psychro- and mesophilic bacteria. An increase in the alkalinity of the investigated water was also observed.
Databáze: Directory of Open Access Journals