Water Supply Vol 2 No 1 pp 241–247 © IWA Publishing 2002
Optimization of particle removal in drinking water treatment of reservoir water in a pressure filter plant
K. Bornmann*, B. Wricke** and D. Habel***
*DVGW Technologiezentrum Wasser, Karlsruhe, Auflenstelle Dresden, Scharfenberger Strafle 152, 01139 Dresden, Germany
**DVGW Technologiezentrum Wasser, Karlsruhe, Auflenstelle Dresden, Scharfenberger Strafle 152, 01139 Dresden, Germany
***Fernwasserversorgung Südthüringen, Gabeler Strafle, 98667 Schönbrunn, Germany
ABSTRACT
Most surface water treatment plants use floc-filtration as the most important treatment step in drinking water production. This paper presents a new technological development which allows floc-filtration to be carried out in pressure filters. Experiments in pilot and full scale show its high efficiency. The technological development allows us to treat algal-rich and high turbid matter containing raw water efficiently at high filtration rates. Floc formation can be realised by means of a special reaction tank in front of the filter inlet. Efficient removal of particles and turbidity is achieved if filtration with filter inlet flow controller is used.
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