Technical Transactions iss. 18. Environment Engineering iss. 1-Ś

Technical Transactions iss. 18. Environment Engineering iss. 1-Ś

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Collection items (17)


Water quality in recreational reservoirs in the Cracow area

Zemełka, Gabriela
Article
2015
This paper presents a water quality assessment for the eight recreational water reservoirs located in the Cracow area. This assessment was performed on the basis of water samples collected during three seasons in 2013. The results showed that in the majority of these reservoirs, water had a good level of quality (class II), and was also suitable for recreational purposes (bathing) and as a fish habitat. In reservoirs where water quality parameters were below threshold levels (unclassifiable), such conditions resulted primarily from the location being in the vicinity of pollution surface run-off sources.

An analysis of the application of the Alden turbine ‒ a case study of the Dobczyce hydroelectric power plant

Twaróg, Bernard
Article
2015
This study contains an analysis of the Alden turbine with a power level of 5.0 MW in the Dobczyce power plant. Taking into account results of annalysis, it may be concluded that the contemplated use of the Alden turbine in the Dobczyce power plant is close to the limits of practical applicability and economic viability of this solution. The average annual energy output value achieved using the Kaplan turbines oscillates around 9 GWh, and if the turbines are replaced with an Alden turbine, the estimated average annual output may reach a maximum of 10.6 GWh which represents an increase in power output of about 17%.

An assessment of remote sensing for the classification of sedimentary rocks – a case study of Tauron Group Quarry, Poland

Toś, Cezary, Gwóźdź, Rafał, Ochtyra, Adrian
Article
2015
This paper presents the results of an analysis of sedimentary rocks in Tauron Group quarry. The main purpose of this study was to assess the possibilities of using remote sensing techniques for the categorisation of rock types. The application of remote sensing systems for the categorisation of rock types allows the evaluation of the volume and mineral composition of the material extracted from the quarry. Rock samples collected from the Tauron Group quarry were classified according to their mineral composition. Spectrometric analyses were also carried out in the spectral range of 350‒2500 nm wavelength. Spectral properties and mineral composition characteristics of the samples allow for the evaluation of the potential of using remotely-sensed data for rock classification. Optimal spectral bands for highest separability between individual rock types in the quarry were identified based on the study.

Local variations in the stage‒discharge relationship for the Vistula river in the surroundings of Sandomierz during flood events

Siuta, Tomasz
Article
2015
In this paper, the results of numerical simulations of the flow field in the compound channel of the Vistula river in the surroundings of Sandomierz are presented. Hydro_as-2d model was used for these calculations ‒ this numerically solves so-called shallow water equations. Special attention was paid to local variations of the water surface level and velocity distribution due to river meandering, the split of the water stream between the main channel and the floodplain and also due to the removal of high vegetation. Additionally, results of the computations were interpreted in the context of the partly documented knowledge of flow behaviour in meandering compound channels.

The use of geothermal energy in absorption refrigeration circuits

Sikorska-Bączek, Renata
Article
2015
The use of absorption refrigerators to produce cold can definitely reduce energy usage through the use of a heat from the geothermal resources. Absorption refrigerators do not have a negative impact on the natural environment. They are particularly economically attractive when there is a free energy source with a temperature of between 50 and 200°C. This article presents a hybrid absorption-compression refrigerator powered by geothermal energy used for the production of ice slurry for air-conditioning refrigeration.

Carbamazepine and other anti-epileptic drugs in the aquatic environment

Rezka, Piotr, Balcerzak, Wojciech, Kwaśny, Justyna
Article
2015
This paper is part of a series of publications discussing the prevalence of pharmaceuticals in the aquatic environment and the effectiveness of their removal and degradation during wastewater treatment processes. The paper discusses the problem of the presence of carbamazepine and other anti-epileptic drugs. The authors reviewed the basic characteristic parameters of these compounds, and based on the analysed literature data, the problem of anti-epileptic drugs, mainly carbamazepine, in the aquatic environment. Carbamazepine appears to be exceptionally persistent at municipal wastewater treatment plants as has been confirmed by current studies on its elimination and degradation, as well as reports on its presence in surface water, groundwater and even drinking water. The latest studies demonstrated highly effective removal of carbamazepine during oxidation processes. The application of these methods in real life situations should enable the effective protection of the aquatic environment.

The occurrence of selected hypolipidemic drugs in the aquatic environment

Rezka, Piotr, Balcerzak, Wojciech
Article
2015
The paper is part of a series of publications discussing the prevalence of pharmaceuticals in the aquatic environment. The paper presents two groups of hypolipidemic drugs (lipid regulators) and their basic parameters. A review of the literature on the occurrence of these compounds in wastewater, surface water and groundwater was made. According to the literature, the presence of various lipid regulators in raw water entering water treatment plants poses a real threat of their penetration into the water supply system, and consequently, to public water intended for human consumption.

Beta-adrenergic drugs (β-blockers) in the environment ‒ new methods of removal

Rezka, Piotr, Balcerzak, Wojciech
Article
2015
This paper is part of a series of publications discussing the prevalence of pharmaceuticals in the aquatic environment and the effectiveness of their removal and degradation during wastewater and water treatment processes. It presents the most commonly used b-blockers and their parameters related to their metabolism and excretion from a body. In the paper, the authors review the literature data on the presence of ß-blockers in wastewater and surface waters and present new solutions which have been developed to increase the efficiency of removal of these compounds from wastewater and potable water.

The application of photovoltaic cells as an alternative power supply for small HVAC systems

Porzuczek, Jan
Article
2015
This paper presents selected aspects of an alternative power supply for small HVAC systems. The application of a system based on photovoltaic cells together with energy accumulation in VRLA gel batteries was analysed. The results were obtained using laboratory installation and were compared with the predicted data.

An assessment of the Cracow landscape from the level of the Vistula river with the use of the urban riverside landscape valuation model

Orzechowska, Iwona, Podolska, Anna
Article
2015
The objective of this article is to present the results of a Cracow landscape valuation from the level of the Vistula river. The paper presents and verifies the urban riverside landscape valuation model based upon five classification functions. The study covers a thirty-kilometre section of the Vistula river within the administrative boundaries of Cracow. 144 valuation points were designated at which the landscape was assessed based upon eight parameters. The presented results indicate the dynamics of the Cracow Vistula river landscape value and allow the assessment of application possibilities of the model developed for the landscape of Wrocław.