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    Tytuł:
    Methane and carbon dioxide emissions from a loess soil treated with municipal waste water after second step of purification
    Autorzy:
    Stepniewska, Z.
    Nosalewicz, M.
    Ostrowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/24681.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    loess soil
    emission
    carbon dioxide
    waste water
    municipal waste water
    purification
    methane
    redox potential
    Źródło:
    International Agrophysics; 2003, 17, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of wastewater application on magnetic susceptibility in Terric Histosol soil
    Autorzy:
    Sokolowska, Z.
    Alekseev, A.
    Skic, K.
    Brzezinska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/25762.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    waste water
    irrigation
    application
    magnetic susceptibility
    Terric Histosol soil
    total carbon
    heavy metal
    municipal waste water
    Źródło:
    International Agrophysics; 2016, 30, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plant contribution to methane emission after irrigation of peat soil with municipal waste water
    Autorzy:
    Przywara, G.
    Stepniewska, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/24761.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    peat soil
    waste water
    methane emission
    soil
    plant contribution
    municipal waste water
    grass
    redox potential
    irrigation
    Źródło:
    International Agrophysics; 2002, 16, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Attempt to use the SWATREZ and UNDYS models for the simulation of ground water pollution in agrosystems irrigated by municipal sewage
    Autorzy:
    Glinski, P.
    Kowalski, D.
    Olszta, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/26098.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    hydromorphic soil
    pollution
    waste water
    ground water
    UNDYS model
    municipal waste water
    modelling
    municipal sewage
    SWATREZ model
    agrosystem
    Źródło:
    International Agrophysics; 2003, 17, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany udziału frakcji ChZT podczas oczyszczania ścieków komunalnych z dużym udziałem ścieków mleczarskich
    Changes of COD fractions share during municipal wastewater treatment with big dairy wastewater participation
    Autorzy:
    Struk-Sokołowska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1819467.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    ścieki mleczarskie
    ścieki komunalne
    frakcja ChZT
    dairy wastewater
    municipal waste water
    COD fraction
    Opis:
    Północno-wschodnia Polska jest regionem z największym pogłowiem krów mlecznych. Problem powstających tam ścieków mleczarskich i ich oczyszczania nadal nie jest do końca rozwiązany. Dlatego celowym wydało się podjęcie badań nad intensyfikacją procesu oczyszczania ścieków komunalnych z dużym udziałem ścieków mleczarskich. W tym celu określono zmiany frakcji ChZT w ściekach surowych oraz po kolejnych etapach mechaniczno-biologicznego oczyszczania ścieków komunalnych z dużym udziałem ścieków z przemysłu mleczarskiego.
    Development of our civilization has caused that urban centres have been deprived of natural retention system especially referring to rainwater. Present sewage systems, in most cases is not able to carry away a great intensity of sewage flow. Therefore, different technical interventions are undertaken in order to catch and keep this surplus of flow temporarily. Sewage transfer to receivers problem is solved in different way in each country. There are well-known solutions of either stationary or moving sewage pumping stations. However, most often outflow of excessive rainwater is performed gravitationally through outflow collectors linking storm overflows with water receiver. The outlet of these outflow collectors is usually equipped with shut-off check valve in order to protect terrains against flooding. However, practically these valves are not always used, whereas they are installed, are usu-ally deprived of proper care and preservation. Thus, their technical state make impossible for these valves to work. A research on practical ways of transfer sewage from the protected drain-age area to the receiver during the periods of high fillings has not brought a uni-versal and unfailing solution, which could have a wide application in practice. So the problem of working out a solution of hydraulic way of carrying away the rainwater to the receiver assure their natural, gravitational outflow during the periods of either low states and medium fillings in the receiver or during the period of high fillings their strained transfer. This kind of solution of transfer of rainwater to the water receiver are transfer reservoirs. A common solving feature of these reservoirs is that they are located on the side of drained terrain. This solution guarantees possible damage repairs even when in the receiver - river high states of filling appears. Transfer reservoirs can be applied in the following cases: (a) in separate sewage system on the outlets of the main collectors of the rainfall system, (b) in combined sewage system on the outlets of a storm canal, (c) in combined sewage system on the outlets of storm canals with simultaneous pumping of domestic and industrial wastewater to a wastewater treatment plant, (d) in case of collectors carrying away treated sewage from the wastewater treatment plant. In the paper transfer reservoir GEMINUS is presented. Transfer of sew-age, using this kind of reservoir, is done through applying system of air-compressors and proper combination of pressure systems.
    Źródło:
    Rocznik Ochrona Środowiska; 2011, Tom 13; 2015-2032
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    High resolution 3D-ecosystem model for the Neva Bay and Estuary - model validation and future scenarios
    Autorzy:
    Korpinen, P.
    Kiirikki, M.
    Rantanen, P.
    Inkala, A.
    Sarkkula, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/48047.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    biomass
    water protection
    St.Petersburg
    chlorophyll a
    phosphorus precipitation
    municipal waste water
    ecosystem
    phytoplankton
    nutrient dynamics
    Neva Estuary
    Neva Bay
    Opis:
    We have used a simple 3D-ecosystem model to describe nutrient dynamics and biomass production in the Neva Bay off St.Petersburg. The River Neva is responsible for carrying the waste waters of St. Petersburg to the Gulf of Finland. Literature values of chlorophyll-a concentrations and satellite images have been used for model validation. The results indicate that our model can reproduce both the temporal and spatial variation in the phytoplankton biomass with reasonable accuracy. The model was used to analyse scenarios describing the ecological effects of planned water protection measures. More efficient phosphorus purification was found to be the most effective measure for improving the water quality off St.Petersburg.
    Źródło:
    Oceanologia; 2003, 45, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelowanie matematyczne przelewu burzowego z cylindrycznym regulatorem wirowym odpływu
    Mathematical Modeling of Storm Overflow with a Cylindrical Vortex Regulator
    Autorzy:
    Kaźmierczak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1819149.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    modelowanie matematyczne
    cylindryczny regulator
    municipal waste water
    discharge coefficient
    hydraulic parameters
    drainage systems
    side weirs
    mathematical modeling
    Opis:
    A simulation of the functioning of a modern overfall with a cylindrical vortex regulator on a combined sewage system was conducted in this work. In a cylindrical vortex regulator, liquid flows into the device through a connector tangent to the cylinder generator. From this, the liquid receives a vortex motion, which is maintained throughout the entire chamber width all the way to an outlet hole on the cylinder head. In the motion, peripheral speed is increased when approaching the cylinder axis. Because of the centrifugal force in the vortex chamber, the pressure decreases towards its axis until it reaches an ambient pressure on the air core surface. The air core being generated has a crucial influence on the throttling efficiency of the device. The atomized liquid in the outflow creates a cone with the angle of flare γ. For the modelling of storm overflow activity a combined drainage area of F = 60 ha was suggested. The overfall was loaded with sewage and wastewater. A typical, triangular hydrograph of the wastewater inflow to the storm overflow was applied here. The given hydraulic model of storm overflow activity includes a series of characteristic, occurring in sequence phases of filling and emptying of the overfall chamber. The phases were distinguished with the description of boundary conditions in reference to the precisely determined range of variables during the fillings and flows. On the basis of the formulated hydraulic and mathematical models of the storm overflow activity, a computer programme for the numerical simulation of the functioning of the aforementioned overflows was developed. The simulation of a storm overflow functioning on a combined sewage system proved a high level of sewage-treatment plant protection from a hydraulic overload by the application of modern, unconventional storm overflows. Irrespective of the assigned load, sewage outflow stream towards the sewage-treatment plant is stabilized on a demanded level. Current methods of designing storm overflows do not take into account the frequency of storm discharges to the receiver, as well as they do not offer the possibility of their duration and volume determination and thus they do not allow for the assessment of pollution load that is drained off in discharges towards receivers. The simulations of storm overflows functioning allow for determination of these parameters for already designed overflow and for any assigned load. Therefore they constitute a valuable instrument supporting the process of designing this type of objects, as it has been proved in this work.
    Źródło:
    Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 3; 2158-2174
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Statistical evaluation of the effect of secondary municipal wastewater and solid waste leachate on ground water quality at Lawspet in Puducherry, India
    Autorzy:
    Nathan, N. S.
    Saravanane, R.
    Sundararajan, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/207184.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    cluster analysis
    discriminant analysis
    municipal waste water
    multivariate analysis
    municipal solid waste
    wastewater disposal
    water quality
    analiza skupień
    analiza dyskryminacyjna
    analiza wieloczynnikowa
    komunalne odpady stałe
    utylizacja ścieków
    jakość wody
    Opis:
    At Lawspet area in Puducherry, India, a unique situation of co-disposal of solid waste dumping and secondary wastewater disposal on land, prevails simultaneously within the same campus. So an attempt is made to assess the combined effect of this co-disposal on the environmental quality and pollution effects on groundwater quality with a view to correctly monitor the situation. Multivariate statistical analysis like hierarchical cluster analysis (HCA) and discriminant analysis (DA) were employed. HCA was performed on borewells, physiochemical parameters and seasons. Borewell clustering identified four clusters illustrating varying degree of groundwater contamination. In parameter clustering, two major clusters were formed indicating hardness and anthropogenic components. Temporal clustering identified three major clusters indicating pre-monsoon, monsoon and post-monsoon. Discriminant analysis revealed nine significant parameters which discriminate four clusters qualitatively affording 86% correct assignation to discriminate among the clusters. Also three major components viz. anthropogenic, hardness and geogenic responsible for groundwater quality in the study area were identified. Conclusively the investigation revealed that the direction of the contaminant transport is towards the southeast direction of the study area, where all the borewells (100%) are affected.
    Źródło:
    Environment Protection Engineering; 2018, 44, 1; 85-102
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nitrate and ammonium transformation and redox potential changes in organic soil [Eutric Histosol] treated with municipal waste water
    Autorzy:
    Wlodarczyk, T.
    Kotowska, U.
    Powiązania:
    https://bibliotekanauki.pl/articles/26181.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    organic soil
    ammonium transformation
    treatment
    soil
    nitrate transformation
    municipal waste water
    potential change
    hydrobotanical treatment plant
    biogene
    redox potential
    irrigation
    Źródło:
    International Agrophysics; 2006, 20, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of sewage on the content of trace elements in the soils of various erosion zones
    Autorzy:
    Filipek, T
    Dechnik, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/1449960.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    trace element
    Polska
    plant nutrient
    municipal waste water
    Lublin city
    erosion zone
    soil
    soil property
    eroded soil
    recycling
    degraded ecosystem
    anthropogenic ecosystem
    sewage
    heavy metal
    water balance
    Opis:
    Lublin municipal waste water effluent treated in two stages (mechanical and biological) was used in the monoliths filled with loess soil of an undisturbed structure taken from different erosion zones: W - top (grey-brown podzolic soil): D - bottom of the valley (deluvial soil); N - northern slope (brown soil - weakly eroded), S - southern slope (calcareous soil - strongly eroded). Control objects were the monoliths treated with equal amounts of water and nutrients: N, P, K, Mg. In the soils treated with sewage and water and mineral salts, a similar increase in the content of soluble metal forms (Zn, Cu, Mn, Pb, Cd, Ni) was observed.
    Źródło:
    Acta Agrophysica; 2001, 51; 45-49
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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