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2014 | 19 | 1-2 | 87-95

Article title

Changes in the Structure of Activated Sludge Protozoa Community at the Different Oxygen Condition / Zmiany W Strukturze Zbiorowiska Pierwotniaków Osadu Czynnego W Zróżnicowanych Warunkach Tlenowych

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Languages of publication

EN

Abstracts

EN
Several experiments were performed in the laboratory condition using an SBR bioreactor modelling the expected conditions, created by malfunction of certain bioreactor elements, thus the different oxygen condition. In the course of the experiments, the concentrations of ammonia nitrogen, nitrates(III), nitrates(V), TOC, and TC were systematically measured. Besides physico-chemical parameters, the structure of activated sludge community was analyzed. In the samples, the number and species composition of protozoa (ciliates) were determined. Each of the three measuring series conducted for various types of process conditions was repeated three times. The activated sludge used for inoculation of the bioreactor was sampled at Hajdow WWTP in Lublin. The results obtained are the average of three repetitions of every experimental series. On this ground, we may conclude that the number of ciliates shows a high correlation with the O2 concentration, pH and TOC.
PL
W pracy przedstawiono wyniki badań prowadzonych w laboratoryjnym bioreaktorze SBR, symulującym warunki występujące w przypadku awarii urządzeń stanowiących wyposażenie bioreaktora (systemu mieszania i systemu napowietrzania). Analizowano skład chemiczny ścieków, w tym stężenia związków azotu (azot amonowy, azotany(III) i azotany(V)), a także stężenia związków organicznych wyrażanych jako ogólny węgiel organiczny (OWO) i węgiel całkowity. Oprócz wskaźników chemicznych analizowany był również zespół organizmów osadu czynnego. W pobieranych próbkach określano ilość pierwotniaków (orzęski) w wymienionej grupie. Każdą z trzech serii pomiarowych prowadzonych dla różnych warunków procesowych powtarzano trzykrotnie. W eksperymencie wykorzystano osad czynny pobierany z oczyszczalni ścieków Hajdów w Lublinie. Na podstawie uzyskanych wyników badań można stwierdzić, że liczebności analizowanych zbiorowisk orzęsków wykazują związek ze stężeniem tlenu, pH oraz wartością OWO.

Publisher

Year

Volume

19

Issue

1-2

Pages

87-95

Physical description

Dates

published
1 - 12 - 2014
online
6 - 2 - 2015

Contributors

author
  • I.I. Schmalhausen Institute of Zoology NAS of Ukraine, B. Khmelnitsky 15, Kiev, 01601, Ukraine
  • Sumy State University, Ukraine, Rimsky-Korsakov 2, Sumy, 40007, Ukraine
  • Faculty of Environmental Engineering, Lublin University of Technology, ul. Nadbystrzycka 40B, 20-618 Lublin, Poland
  • Institute of Agrophysics, Polish Academy of Sciences, ul. Doświadczalna 4, 20-290 Lublin, Poland

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_1515_cdem-2014-0008
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