Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 4

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: biologically treated sewage

Sortuj według:

Ogranicz wyniki do:

Określenie stanu troficznego stawów rybnych zasilanych biologicznie oczyszczonymi ściekami komunalnymi

100%

Cupak A. , Wałęga A.

Gaz, Woda i Technika Sanitarna

2013

tom Nr 4

167--169

W artykule określono stan troficzny stawów rybnych, użyźnianych biologicznie oczyszczonymi ściekami komunalnymi. Określono także wielkość produkcji rybnej na analizowanych obiektach. Obiekt badań stanowił kompleks stawowy „Komorowice” położony w północnej części miasta Bielsko-Biała. Przeprowadzone w sezonie wegetacyjnym 2007 i 2008 analizy parametrów fizycznochemicznych pozwoliły na zakwalifikowanie wody badanych stawów według klasyfikacji stanu troficznego Vollenweidera oraz OECD jako wody typu politroficznego. Średni przyrost masy karpia w obu sezonach wegetacyjnych stawów był zbliżony i zawierał się w przedziale 350-660 kg∙ha-1.

In the article, trophic state of fish ponds fertilize with biologically treated municipal sewage was qualified. In addition, it was quantified the value of fish production in analyzed object. The object of the researches was the “Komorowice” ponds соmрlех, which lays in the north part of Bielsko-Biała. The researches of physical and chemical parameters in analyzed ponds carried in 2007 and 2008 vegetative seasons led to qualify its water to heterotrophic state, according to Vollenweider and OECD qualifications. The mean annual growth of carp in both seasons was nearing and range between 350-660 kg∙ha-1.

The effect of meadow irrigation with biologically treated sewage on the occurrence of micro-organisms indicatory of pollution and sanitary state and of potentially pathogenic bacteria in the grass

84%

Niewolak S. , Tucholski S.

Polish Journal of Environmental Studies

1999

tom 08

nr 1

Sanitary-bacteriological evaluation of meadow soils irrigated with biologically treated sewage

67%

Niewolak S. , Tucholski S. , Radziejewska E.

nr 2

Studies were carried out to determine numbers of bacteria indicatory of pollution (total number of bacteria on broth-agar at 20 and 37°C) and sanitary state (Total coliforms, fecal coliforms, fecal streptococci and Clostridium perfringens) and of potential pathogens (Aeromonas hydrophila, Staphylococcus sp., Pseudomonas aeruginosa, Salmonella sp.) and fungi on Trichophyton Agar 1 in soils from meadow subject to 8 different variants of irrigation and fertilization in the vicinity of a treatment plant in Olsztynek. Studies were performed in 1996 and 1997. Experimental variants comprised (A) non-irrigated plots (control); (B) irrigated with fresh water; (C) irrigated with biologically-treated sewage (outflow from a waste treatment plant); (D,E, F) irrigated with treated sewage stored in a biological pond with a basic dose, the increased dose up to 150% and 200%; (G) NPK minerally fertilized; (H) NPK minerally fertilized and irrigated with fresh water. Bacteria determined on broth-agar at 20°C were more numerous in the soils of plots irrigated with effluents from a treatment plant and stored in a biological pond. The differences in the number of bacteria determined on broth-agar at 37°C in the soils of different variants were not significant. Fecal coliforms, fecal streptococci (enterococci), Clostridium perfringens, Aeromonas hydrophila and Staphylococcus sp. were generally more numerous in the soils of different irrigated-fertilized variants, less numerous in non-irrigated soils (control). The differences in the number of fecal coliforms in the soils of particular variants were ambiguous. All groups of microorganism were more numerous in the surface layer of the soil. Irrigated dose of treated sewage stored in a biological pond did not influence their number in the soil. Fungi determined on Trichophyton Agar 1 were a constant component of microflora of the examined soils whereas Salmonella sp. was determined sporadically.

Sanitary and bacteriological evaluation of common carp, tench and crucian carp reared in a pond supplied with biologically treated sewage

59%

Niewolak S. , Tucholski S.

Archives of Polish Fisheries

2000

tom 08

nr 1