The effect of some technological parameters on the diversity of immobilized microorganisms

• Autorzy: Zielińska M. , Cydzik-Kwiatkowska A. , Wojnowska-Baryła I.

Warianty tytułu

PL

Wpływ parametrów technologicznych na różnorodność unieruchomionych mikroorganizmów

• Języki publikacji: EN

Abstrakty

EN

The effect of hydraulic retention time (HRT) and internal circulation capacity (q(.) on microbial diversity of immobilized biomass in the porous ceramic carrier was determined. The bioreactor, operating at HRT of 70 and 60 min, and with q(, in the range of 20-70 dm-'-h"1, was employed for the removal of organic compounds from municipal wastewater. Microbial diversity was estimated on the basis of RISA patterns using the Shannon-Wiener index (H'). At HRT of 70 min, H' lowered from 2.48 š 0.14 to 2.13 š 0.23 as q(. was increased from 20 to 60 dm'-h"1. At HRT of 60 min, an increase in q(. from 40 to 70 dm'-h"1 resulted in H' drop from 2.41 š 0.13 to 2.08 š0.19. At every HRT the highest efficiency of removal of organic compounds was obtained at the lowest value of qc and the highest biomass diversity.

PL

Celem pracy było określenie wpływu hydraulicznego czasu zatrzymania (HRT) i wydajności cyrkulacji wewnętrznej (q_c) na różnorodność mikroorganizmów w biomasie unieruchomionej w porowatym nośniku ceramicznym. Bioreaktor, wykorzystywany do usuwania związków organicznych ze ścieków komunalnych, był eksploatowany przy HRT 70 i 60 min oraz q_c, w zakresie 20-70 dm^33h^-1. Różnorodność mikroorganizmów była określana na podstawie wzorów RISA przy użyciu indeksu Shannona-Wienera (H'). Przy HRT równym 70 min, II' obniżył się z 2,48 š 0,14 do 2,13 š 0,23 ze wzrostem q(. z 20 do 60 dm-'-lv1. Przy HRT 60 min, zwiększenie qt. z 40 do 70 dm^3h^-1 spowodowało spadek II' z 2,41 š 0,13 do 2,08 š 0,19. Przy każdej wartości HRT, najwyższą efektywność usuwania związków organicznych uzyskano przy najniższej wartości q_c. i najwyższej bioróżnorodności.

Słowa kluczowe

EN

microbial diversity; immobilized biomass; RISA

PL

różnorodność mikroorganizmów

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archives of Environmental Protection
• Rocznik: 2009
• Tom: Vol. 35, no. 1
• Strony: 45--53
• Opis fizyczny: bibliogr. 23 poz., tab., wykr.

Twórcy

autor

Zielińska M.

autor

Cydzik-Kwiatkowska A.

autor

Wojnowska-Baryła I.

• University of Warmia and Mazury in Olsztyn, Department of Environmental Biotechnology ul. Słoneczna 45G, 10-709 Olsztyn, Poland,

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