1. The use of carbonate-silica rock (opoka) to remove iron, manganese and indicator bacteria from groundwater
- Author
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Bożena Sosnowska, Agnieszka Kamińska, Krzysztof Jóźwiakowski, Magdalena Gizińska-Górna, Agata Pieńko, Aneta Pytka, Michał Marzec, and Agnieszka Listosz
- Subjects
Environmental Engineering ,Hydraulic retention time ,Geography, Planning and Development ,Alkalinity ,chemistry.chemical_element ,Indicator bacteria ,lcsh:River, lake, and water-supply engineering (General) ,Manganese ,010501 environmental sciences ,Development ,01 natural sciences ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Mining engineering ,groundwater ,silica-carbonate rock ,manganese removal ,iron removal ,0105 earth and related environmental sciences ,Water Science and Technology ,lcsh:TC401-506 ,030206 dentistry ,water treatment ,Agricultural and Biological Sciences (miscellaneous) ,Filter (aquarium) ,chemistry ,Environmental chemistry ,Carbonate ,Water treatment ,Groundwater - Abstract
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.
- Published
- 2017