Język
angielski
Treść
The activated sludge work is supported by periphyton organisms expanding in all main devices of the wastewater treatment plant (WWTP). Until now, no comprehensive analysis of the occurrence of morphological groups in the periphyton of wastewater treatment devices has been performed.
The aim of this study was to identify the organization of periphyton in the successive stages of the WWTP in Lublin (Poland). The research material was taken from 11 points - devices of the municipal “Hajdów” WWTP (Figure 1.): 1. pre-screen chamber, 2. post-screen chamber, 3. pre-grit separator chamber, 4. post-grit separator chamber, 5. primary clarifier, 6. anaerobic bioreactor chamber, 7. anoxic chamber, 8. aerobic bioreactor chamber, 9. bioreactor outlet, 10. secondary clarifier, 11. channel discharging to the receiver.
The structure of the periphyton changes in the devices of the technological wastewater treatment system was observed. Heterotrophic flagellates are the dominant organisms in the periphyton present in the mechanical treatment parts (no. 1-4). The dominance of algae is the specificity of the periphyton in the no. 5, 10 and 11. In devices with small turbulence of the sewage stream, the periphyton abundance was higher than that in facilities characterized by turbulent flow.
