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Articles 1 - 8 of 8
Full-Text Articles in Environmental Engineering
Obliczenia Rozprzestrzeniania Się Pyłu Drobnego W Powietrzu Atmosferycznym Z Wykorzystaniem Dyfuzyjnych Modeli Gaussa, Robert Oleniacz, Mateusz Rzeszutek
Obliczenia Rozprzestrzeniania Się Pyłu Drobnego W Powietrzu Atmosferycznym Z Wykorzystaniem Dyfuzyjnych Modeli Gaussa, Robert Oleniacz, Mateusz Rzeszutek
Robert Oleniacz
The chapter presents a comparison of results of modelling concentrations of fine dust (suspended dust PM10) in the air with the use of two diffusion models: the Gaussian plume model (used commonly in Poland), and the Gaussian puff model CALPUFF (used significantly less frequently). It indicates discrepancies in obtained results of calculations for point emitters taking into consideration three dimensional options (with the following heights: 20, 40 and 60 m and diameters of respectively: 1.0, 1.5 and 2.0 m). For particular variants, errors were visualised, resulting from use of the simple Gaussian plume model in place of the advanced CALPUFF …
Wpływ Instalacji Termicznego Przekształcania Odpadów Komunalnych Na Jakość Powietrza, Robert Oleniacz
Wpływ Instalacji Termicznego Przekształcania Odpadów Komunalnych Na Jakość Powietrza, Robert Oleniacz
Robert Oleniacz
At the turn of 2015/2016 it is planned to launch in Poland a few new municipal solid waste incineration plants. This type activities causes usually concerns of the local community due to their potential negative impact on air quality. Are these fears are, however, justified? The article describes allowable air emissions for new waste incinerators, the actual emissions that occur from such installations, and the current state of knowledge about their impact on air pollution.English title: The impact of installations of municipal solid waste thermal treatment on air quality.
Validating And Applying Snl-Efdc To Current-Energy-Capture-Devices Simulation, Scott James, Mary Cardenas, Chris Hirlinger
Validating And Applying Snl-Efdc To Current-Energy-Capture-Devices Simulation, Scott James, Mary Cardenas, Chris Hirlinger
Mary Cardenas
With the growing focus on renewable energy, there is increased interest in modeling and optimizing current energy capture (CEC) devices. The interaction of multiple wakes from CEC devices can affect optimal placement strategy, and issues of environmental impacts on sediment transport and large-scale flow should be examined. Numerical models of four flume-scale experiments were built using Sandia National Laboratories’ Environmental Fluid Dynamics Code (SNL-EFDC.) Model predictions were calibrated against measured velocities to estimate flow and turbine parameters. The velocity deficit was sensitive to αmd, the dimensionless Smagorinsky constant related to horizontal momentum diffusion, as well as the k-ε turbulence parameters. …
Zastosowanie Systemu Modeli Calmet/Calpuff O Wysokiej Rozdzielczości Do Oceny Wpływu Na Jakość Powietrza Spalarni Odpadów Komunalnych W Krakowie, Mateusz Rzeszutek, Robert Oleniacz
Zastosowanie Systemu Modeli Calmet/Calpuff O Wysokiej Rozdzielczości Do Oceny Wpływu Na Jakość Powietrza Spalarni Odpadów Komunalnych W Krakowie, Mateusz Rzeszutek, Robert Oleniacz
Robert Oleniacz
In this paper there was presented a comprehensive assessment of the impact on air for the Municipal Solid Waste Incineration (MSWI) plant in Krakow with the planned start of operation by the end of 2015. Construction of the plant started in autumn 2013 in the district of Nowa Huta in Krakow. Modeling of the spread of pollutants in ambient air was conducted using an advanced multi-layer cloud CALPUFF Gaussian model, whose algorithms include, among other things, diversity of terrain. Spatial data of land area in the admitted computational domain are obtained from digital terrain model Shuttle Radar Topography Mission (SRTM3) …
Chemical Modification Of Byrsonima Crassifolia With Citric Acid For The Competitive Sorption Of Heavy Metals From Water, Jacqueline Monroy-Figueroa, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, María Ana Pérez-Cruz
Chemical Modification Of Byrsonima Crassifolia With Citric Acid For The Competitive Sorption Of Heavy Metals From Water, Jacqueline Monroy-Figueroa, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, María Ana Pérez-Cruz
Adrian Bonilla-Petriciolet
This study reports the chemical modification of the Byrsonima Crassifolia biomass with citric acid to improve its sorption properties for the removal of cadmium and nickel ions from aqueous solutions under competitive sorption conditions (i.e., multicomponent solutions). The best operating conditions of the chemical modification process were identified using the signal-to-noise ratio to enhance the metal uptakes and to reduce the competitive sorption effects during the simultaneous removal of these metals using the modified biomass. Results indicated that both the sorption capacity and selectivity for heavy metal removal can be improved in multicomponent metal solutions. This improvement in sorption properties …
Performance Evaluation Of Natural Iron-Rich Sandy Soil As A Low-Cost Adsorbent For Removal Of Lead From Water, Yee Sern Ng, Bhaskar Sen Gupta, Mohd Ali Hashim
Performance Evaluation Of Natural Iron-Rich Sandy Soil As A Low-Cost Adsorbent For Removal Of Lead From Water, Yee Sern Ng, Bhaskar Sen Gupta, Mohd Ali Hashim
Ng Yee-Sern
Technical feasibility of natural iron-rich sandy soil as a low-cost adsorbent for removal of lead from water was investigated . The soil, which had an iron content of 3,719 mg/kg, was collected from Hulu Langat, Malaysia, and was used for adsorption studies without any surface modification through chemical treatment. The effects of pH, solution: soil ratio and initial lead concentration on the adsorption efficiency were studied using response surface methodology based on Box–Behnken experimental design. The results showed that pH of the solution had the highest impact on the adsorption efficiency whereby adsorption efficiency of 97% could be achieved at …
Inżynieria Chemiczna Ćw., Wojciech M. Budzianowski
Tematyka Prac Doktorskich, Wojciech M. Budzianowski
Tematyka Prac Doktorskich, Wojciech M. Budzianowski
Wojciech Budzianowski
No abstract provided.