Polyphosphate accumulating organisms in treatment plants with different wastewater composition

• Autorzy: Muszyński A. , Załęska-Radziwiłł M.
• Języki publikacji: EN

Abstrakty

EN

Fluorescence in situ hybridization was applied to investigate the community structure of polyphosphate accumulating organisms (PAOs) in activated sludge of four full-scale wastewater treatment plants (WWTPs) with different configurations of bioreactors and wastewater composition. PAOs constituted 18-36% of the entire bacterial biovolume and they were more abundant in autumn than in spring. More than half of the probe-defined PAOs community were Tetrasphaera, which were particularly abundant in WWTPs with significant contribution of industrial wastewater or sewage from septic tanker trucks. Accumulibacter-PAOs accounted for up to 12% of all bacteria and were more abundant in the WWTP receiving typical domestic wastewater. Halomonas-PAOs did not generally exceed 1% of total biovolume and constituted a minor fraction of the PAOs community in all the tested WWTPs. Significant contribution of industrial wastewater and sewage from septic tanker trucks were the decisive factors in determining the PAOs community structure.

PL

Zbadano strukturę populacji bakterii akumulujących fosfor (PAO) w osadzie czynnym czterech oczyszczalni różniących się układem technicznym i składem dopływających ścieków. Badania prowadzono metodą fluorescencyjnej hybrydyzacji in-situ. Ogólna liczebność PAO w osadzie czynnym była wyższa na jesieni niż na wiosnę i zawierała się w granicach 18-36% ogółu bakterii. Ponad połowa PAO w badanych układach należała do rodzaju Tetrasphaera, które były szczególnie liczne w osadzie czynnym układów z dużym udziałem ścieków dowożonych transportem asenizacyjnym oraz pochodzących z przemysłu spożywczego. Zawartość Accumulibacter nie przekraczała 12%, osiągając najwyższe wartości w oczyszczalni, do której doprowadzano typowe ścieki bytowe. Liczebność Halomonas nie przekraczała na ogół 1% i bakterie te stanowiły mniejszość w populacji PAO we wszystkich badanych układach. Istotnym czynnikiem, wpływającym na strukturę PAO, był rodzaj dopływających ścieków, a w szczególności udział ścieków przemysłowych i dowożonych transportem asenizacyjnym.

Słowa kluczowe

EN

activated sludge; nutrients removal; accumulibacter; Tetrasphaera; halomonas

PL

osad czynny; składniki odżywcze; usuwanie substancji biogennych

• Wydawca: Silesian University of Technology
• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2015
• Tom: Vol. 8, no. 4
• Strony: 99--105
• Opis fizyczny: Bibliogr. 27 poz., tab., wykr.

Twórcy

autor

Muszyński A.

• Faculty of Environmental Engineering, Department of Biology, Warsaw University of Technology, Nowowiejska 20, 00-653 Warsaw, Poland

autor

Załęska-Radziwiłł M.

• Faculty of Environmental Engineering, Department of Biology, Warsaw University of Technology, Nowowiejska 20, 00-653 Warsaw, Poland

Bibliografia

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