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Wyszukujesz frazę "ammonium ion" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Profiling of groundwater quality based on its utilization
Autorzy:
Wons, M.
Szymczyk, S.
Koc, J.
Powiązania:
https://bibliotekanauki.pl/articles/125140.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater
aquifer stages
operational capacity
reaction
ammonium ion
chlorides
Opis:
This paper presents an analysis of groundwater from the intakes “Park” and “Motława” situated in Tczew (Poland). These water intakes have varied hydrological conditions and volume of utilized resources (wells). In this area, the deepest drillings extend to 180 m (cretaceous stage) with 20% being constituted by tertiary-quaternary formations with depths ranging from 60 to 63.7 m. The distribution of water from the intakes depended on the population to which it was supplied and the average production of water ranged from 5,802.4 to 7,591.5 m3 per day on “Motława” intake and from 3,196.3 to 4,125.4 m3/day on “Park” intake and did not exceed the production capacity specified by the regulations. In 1994–2009, analyses of water intended for consumption from the above-mentioned intakes in Tczew were performed by testing the water reaction and the content of ammonium ions and chlorides. In the period of the studies, the permissible reaction was not exceeded and the concentrations of ammonium ion and chlorides were on a relatively steady level.
Źródło:
Journal of Ecological Engineering; 2013, 14, 4; 28-35
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Research on the Ammonium Concentrations in City Stocks and Further Sedimentation of Ion-Exchange Concentrate
Autorzy:
Malovanyy, Myroslav
Sakalova, Halyna
Vasylinych, Tamara
Kryklyvyi, Rostyslav
Powiązania:
https://bibliotekanauki.pl/articles/124943.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
environmental security
natural clay sorbents
adsorption
ion exchange
ammonium orthophosphate hexahydrate
struvite
thermal analysis
Opis:
In this work, the exchange capacity and the selectivity of different ion-exchange products regarding the ammonium ions in treatment processes were measured; the regenerative preparation compounds influence on efficiency of conduction of ion-exchange products regeneration was determined. The adsorption processes were adapted to the known technological schemes of sewage and polluted surface water treatment that was polluted with ammonium ions. There were measured the technological aspects of water treatment by using adsorption on natural dispersed sorbents. The technological schemes of drain water treatment from ammonium ions were developed. The method of simultaneous removal of highly concentrated nitrogen and phosphorus was analyzed by physical and chemical precipitation, forming struvite, a by-product of magnesium ammonium orthophosphate hexahydrate. The analyses were conducted at various molar ratios of magnesium and phosphate ions and at various pH values. The comparative thermal analysis of chemical precipitation products and pure struvite was performed. The optimal conditions were identified to experience the maximum efficiency of simultaneous removal of ammonium nitrogen and phosphate ions from wastewater, forming MgNH4PO4·6H2O.
Źródło:
Journal of Ecological Engineering; 2019, 20, 1; 158-164
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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