A study of application the modified chalcedonite for underground water treatment
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2012, Vol 44, Issue 2
Abstract
The paper presents the results of the research on underground water treatment by manganese dioxide modifi ed chalcedonite (the MDMC-3 variety). The tested material was used as the filling of the gravitation filter. Raw water, taken from the level of the Quaternary and aerated in a pressurized aerator, was supplied for the tested filtration bed from the supply system of the Scientific-Research Waterworks Plant at Warsaw University of Life Sciences – SGGW. The decrease in the iron and manganese concentration as well as colour and turbidity to the level accepted by Directive 98/83/WE was observed. The mass capacities of the filtration bed were 4986 g Fe/m3 of the bed and 670 g Mn/m3 of the bed. The MDMC-3 material may be classifi ed as a chemically active bed, because it loses its oxidative-sorption capacity during water treatment and can be regenerated with an oxidant. The water-air backwashing is an effectiveness method for cleaning the filtration bed.
Authors and Affiliations
MAGDALENA MICHEL
Keywords
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