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Wyszukujesz frazę "water microflora" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Changes in surface water microflora caused by discharge of purified sewage into rivers
Autorzy:
Godela, Agnieszka
Lewańska, Monika
Myga-Nowak, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/1179554.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Sewage
river
sewage treatment plant
sewers
water microflora
Opis:
Progressive environmental degradation results in an increase in the number of waters that do not meet the standards in force. Surface waters are particularly vulnerable to pollution because they are receivers of purified water and agricultural or industrial wastewater flow. In addition, the local increase in temperature and the increase amount and availability of nutrients associated with wastewater discharged improves the microbial growth and thus increase their quantity. The treated sewage must meet certain requirements regarding their physicochemical and biological parameters. However, the regulations do not require to check microbiological quality by treatment plants, so the purpose of the study was to determine the impact of discharge of purified wastewater by the "Warta" sewage treatment plant down to Warta river. The study was conducted in 2008-2016 at three collection points near the place of discharge of purified sewage from Warta SA sewage treatment plant. It has been demonstrated that the process of sewage treatment is not enough in terms of microbiological pollution because the water samples collected at the points behind the discharge site of the effluent into the river were characterized by increased abundance and microbiological diversity.
Źródło:
World Scientific News; 2017, 75; 26-32
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production of amylase by the intestinal microflora of cultured freshwater fishes (Oreochromis niloticus and Clarias gariepinus) rared localy in Calabar, south Nigeria
Autorzy:
Martin, M. F.
Okpo, E. A.
Andy, I. E.
Powiązania:
https://bibliotekanauki.pl/articles/1076792.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Amylase
Clarias gariepinus
Cultured Fresh Water Fishes
Intestinal Microflora
Oreochromis niloticus
Opis:
This study focused on determining the amylase-producing ability of the intestinal microbes in cultured fresh water fishes – Oreochromis niloticus and Clarias gariepinus. The bacterial isolates were identified on the basis of standard cultural, morphological and biochemical characteristics. The amylase production ability of the bacterial isolates was determined using starch agar. The mean viable count of the intestinal microbes ranged from 1.2 × 105 CFU/ml to 7.1 × 105 CFU/ml for tilapias (Oreochromis niloticus) and from 2.0 × 104 CFU/ml to 8.9 × 104 CFU/ml for catfishes (Clarias gariepinus). Staphylococcus and Micrococcus were predominant for both tilapias and catfishes. Out of 24 isolates, 21 were amylase producers. These included the following bacteria genera: Bacillus, Micrococcus, and Staphylococcus. These results strongly suggest that intestinal microbes play a pivotal role in the digestion of starch in cultured freshwater fishes and should be explored for industrial amylase production.
Źródło:
World News of Natural Sciences; 2019, 23; 13-23
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bacterial utilization of carbohydrates in the surface seawater layers of the Gdansk Deep
Autorzy:
Mudryk, Z.
Skorczewski, P.
Powiązania:
https://bibliotekanauki.pl/articles/84994.pdf
Data publikacji:
1997
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
bacterial utilization
carbohydrate
surface water
sea water
water layer
Gdansk Deep
neustonic bacteria
planktonic bacteria
microflora
dissolved organic matter
chemical composition
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 1997, 01
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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