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1 1999

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Liczebność mikroorganizmów zasiedlających złoża filtrów węglowych w ZPW 'Dziećkowice'

Falkus B., Handzlik A., Kajdas E.

Ochrona Środowiska

1999

nr 2

29-33

The treatment train made use of by the Upper Silesian Wa-terworks of Dzieckowice involves activated carbon beds. Inve-stigations were carried out for three filter types of choice, including Chemviron F-300, WD-extra, and Norit 0.8 Supra activated carbon, respectively. Samples were taken at three depths of the bed (top layer, 0.5 m and 1.0 m). Microorganism growth was particularly intensive between March and May. The number of microorganisms varied from one sample to another and was the greatest on the surface of each filter bed. According to the activated carbon type, bacterial counts were the highest in WD-extra samples and the lowest in Norit 0.8 Supra samples, but these differences are negligible. Microscopic examinations revealed the presence of a variety of species. The plant and animal species identified in the investigated filter beds corre-sponded with those detected in the treated water. However, as the number of animal species increased, the number of bacterial