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

Abstract

A. 2017. The use of carbonate-silica rock (opoka) to remove iron, manganese and indicator bacteria from groundwater. Journal of Water and Land Development. No. 34 p. 197-204. DOI: 10.1515/jwld-2017-0054. AbstractThe 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.

The Accelerated Aging Impact on Mechanical and Thermal Properties of Polypropylene Composites with Sedimentary Rock Opoka-Hybrid Natural Filler

“…Owing to their thermal and mechanical properties, Opoka finds application in the building industry, cement production, road construction, and the manufacture of decorative lining and ceramic materials [ 42 , 46 ]. The sorption properties of Opoka materials are utilized in the processes of water and sewage purification to remove phosphorus, magnesium, and iron, among others [ 43 , 47 ].…”

Application of in-line rheological measurements for characterization of polypropylene/opoka rock powder composites

“…Owing to their thermal and mechanical properties, opokas find application in the building industry, cement production, road construction, river revetment, and the manufacture of decorative lining and ceramic materials [10][11][12]15]. The sorption properties of opokas are utilized in the processes of water and sewage purification to remove phosphorus, magnesium and iron, among others [10,16].…”

The Opoka-Rock from the Mesozoic/Neogene Contact Zone in the Bełchatów Lignite Deposit – Characteristics of a Petrographic Nature and as a Raw Material

“…The capacity to bind phosphorus noted for opoka-rock as a result of laboratory tests is between 12.3 and 25.5 mg P-PO4 • g -1 [Bus A. and Karczmarczyk A., 2014]. In addition, these rocks manifest a high efficiency of removal in the case of iron, manganese and coli bacteria, as well as low efficiency where the removal of psychro-and mesophilic bacteria is concerned [Marzec M. et al 2017]. It would also seem that the relatively low content of CaO in relation to the requirements imposed for the lime fertilisers, precludes this kind of use of the rocks in agriculture [Pękala A., 2013].…”