Water Science & Technology: Water Supply Vol 1 No 2 pp 159–165 © IWA Publishing 2001
Evaluation of the effectivity of selected filter beds for iron and
manganese removal
K Olańczuk-Neyman*, P Częścik**, E Łasińska*** and R Bray****
*
Hydro- and Environmental Engineering Faculty,
Technical University of Gdansk, Narutowicza 11/12, 80-952 Gdańsk,
Poland, (e-mail: kola@pg.gda.pl)
**
Centrum Badawczo-Wdrożeniowe UNITEX Sp. z o.o., Lęborska 9,
80-386 Gdańsk, Poland, (e-mail:piotrczescik@poczta.wp.pl)
***
Centrum Badawczo-Wdrożeniowe UNITEX Sp. z o.o., Lęborska 9,
80-386 Gdańsk, Poland,
****
Hydro- and Environmental Engineering Faculty,
Technical University of Gdansk, Narutowicza 11/12, 80-952 Gdańsk,
Poland, (e-mail: kola@pg.gda.pl)
ABSTRACT
The results of experiments concerning iron and manganese removal from
groundwater at a treatment facility in the first and second stage of
filtration through pressure experimental filters with different filter
beds are presented. Research was carried out on three parallel filters
with the following filter beds: quartz sand+Hydrolit-Mn, quartz
sand+pyrolusite and single medium mature quartz sand.
It was revealed that the effectiveness of iron and manganese removal
from groundwater at the Sieradzka facility in Gdynia can be increased
by one-stage filtering through oxidation beds of mature quartz sand or
two-layered quartz sand+pyrolusite. As a result of filtration, the
concentrations of both elements decreased from the average level in
untreated water of 1.10 mg Fe/dm3 and 0.14 mg Mn/dm3
to below 0.2 mg Fe/dm3 and 0.05 mg Mn/dm3 in the
outflow. These levels meet both the current Polish and European Union
standards.
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