Physical Sciences and Mathematics Commons^™

Emisja Chlorowodoru Ze Spalania Węgla W Kotle Pyłowym, Marian Mazur, Robert Oleniacz, Przemysław Szczygłowski, Marek Bogacki

Robert Oleniacz

Emission of hydrogen chloride (HCl) from coal combustion is not controlled just like for example sulpfur dioxide emission. But HCl emission is also important, because chlorine content in some types of coal can reach the similar level to sulfur content. In the paper the measurement results of HCl emission to the air during combustion of three types of coal with law content of chlorine were presented. The researches were carried out for a steam pulverized coal boiler (max. boiler efficiency – 430 t/h) during three various loads (respectively 65, 80 and 95 % of maximum efficiency) without flue gas desulfurization. …

Meeting The Scientific Needs Of Ecological Risk Assessment In A Regulatory Context, Steven P. Bradbury, Tom C. Feitel, Cornelis J. Van Leeuwen

Steven P. Bradbury

During the past decade, the field of ecological risk assessment has progressed considerably. Advances have come from such international bodies as the Organisation for Economic Co-operation and Development (OECD), the World Health Organisation (WHO), the European and Mediterranean Plant Protection Organisation (EPPO), and the European Centre for Ecotoxicology and Toxicology of Chemicals (ECETOC) (1–8). Risk assessments have played a critical role in the development of various regulations within the European Commission (EC) as well as in other parts of the world, including the United States, Canada, and Japan (9–17). But scientists and regulators are faced with three significant challenges: streamlining …

Adaptation And Sustainability In A Small Arctic Community: Results Of An Agent-Based Simulation Model, Matthew Berman, Craig Nicolson, Gary Kofinas, Joe Tetlichi, Stephanie Martin

Craig Nicolson

Climate warming and resource development could alter key Arctic ecosystem functions that support fish and wildlife resources harvested by local indigenous communities. A different set of global forces—government policies and tourism markets—increasingly directs local cash economies that communities use to support subsistence activities. Agent-based computational models (ABMs) contribute to an integrated assessment of community sustainability by simulating how people interact with each other and adapt to changing economic and environmental conditions. Relying on research and local knowledge to provide rules and parameters for individual and collective decision making, our ABM generates hypothetical social histories as adaptations to scenario-driven changes in …

Metoda Oceny Trudności Oczyszczania I Toksyczności Spalin Powstających Podczas Spalania Odpadów, Robert Oleniacz

Robert Oleniacz

The paper presents a methodology for evaluating the cleaning difficulty and toxicity of combustion gases from waste incineration based on the knowledge of gases composition. This type of evaluation may be applicable to selection or modernization of flue gas cleaning systems for waste incineration plants and to comparative analy-sis of a pollution degree of raw (unclean) combustion gases. In the evaluation of the cleaning difficulty of gases six categories of difficulty have been identified for removal of selected substances or groups of substances. The evaluation is made individually for substances or groups of substances on condition their concentrations in flue …

Emisja Btx Towarzysząca Produkcji Wyrobów Węglowych I Grafitowych, Marian Mazur, Przemysław Szczygłowski, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

The work presents results of direct measurements of benzene, toluene, ethyl benzene and xylenes (BTX or BTEX) emissions to the air from technological processes related with carbon and graphite manufacturing. The most important from all mentioned pollutants is benzene considered as one of the main factor of air pollution in the European Union. The highest concentrations of BTX were found in the fumes emitted from the tanks of liquid raw materials, while the highest levels of their emissions were from furnaces used for baking of green electrodes and other carbon products.

English title: BTX emission from production of graphite and …

Release And Transport Of Nutrients From Livestock Manure Applied To Pastureland, Michelle L. Soupir, Saied Mostaghimi, Eugene R. Yagow, David H. Vaughan

Michelle L. Soupir

Land applications of manure from confined animal systems and direct deposit by grazing animals are both major sources of nutrients in streams. An understanding of the overland transport mechanisms from land applied waste is needed to improve design of best management practices and modeling of NPS pollution. Release and transport plots were established to study in-field nutrient release and transport from pasturelands receiving phosphorus based livestock waste applications. The release plots determined the concentrations available to be transported to the edge of the field in runoff. Four manure treatments (turkey litter, liquid dairy manure, standard cowpies, and none) and three …

Effects Of Experimental Greenhouse Warming On Phytoplankton And Zooplankton Communities In Fishless Alpine Ponds, Angela L. Strecker, Tyler P. Cobb, Rofl D, Vinebrooke

Angela L. Strecker

The impacts of global warming on aquatic ecosystems are expected to be most pronounced at higher trophic levels in cold-water environments. Therefore, we hypothesized that wanning of fishless alpine ponds would suppress large-bodied consumers (e.g., cladocerans, copepods) and stimulate fast-growing microorganisms (e.g., phytoflagellates, rotifers), thereby altering the community composition and total abundance of zooplankton and phytoplankton. This hypothesis was tested using three blocks of four experimental mesocosms (1000-liter capacity) that were located next to alpine ponds in Banff National Park, Canada. Each block received unfiltered pond water and sediment from a pond following ice out in June 2000. A warming …

Wpływ Wybranych Parametrów Na Wielkość Emisji Zanieczyszczeń Powietrza Z Procesu Wysokotemperaturowego Spalania Odpadów Chloroorganicznych, Robert Oleniacz

Robert Oleniacz

In the paper preliminary analysis of the continuous measurements of the air pollutants emission and other

parameters of high-temperature process of chloroorganic waste incineration (liquid injection incinerator - Vicarb technology) are presented. In the analysis there was taken especially note of the parameters influencing the emissions, which could significantly vary in the incineration system (for example the amount of incinerated wastes) and pollutants like hydrogen chloride, nitrogen oxides and carbon monoxide. Basing the results of the analysis, it was affirmed that chlorine plays an inhibiting role on the formation of nitrogen oxides in the chloroorganic waste incineration system. On the …

Emisja Rtęci Z Energetycznego Spalania Węgla, Marian Mazur, Przemysław Szczygłowski, Robert Oleniacz, Janusz Dańko

Robert Oleniacz

In the paper, some results of the measurement of mercury emission from OP-430 boiler working in the Combustion Plant “Kraków S.A.” are presented. The tests were carried out during combustion of various coals and changeable the boiler efficiency. Apart from investigation of mercury emission to the atmosphere (in gaseous and solid phase), total mercury concentration in coal, bottom ash and dust collected in electrostatic precipitators were analysed as well. Thus emission amount could be verified by means of the approximate mercury balance performed for the coal combustion process.

English title: Mercury emission from coal combustion.

Karst Of Western Cuba: Observations, Geomorphology, And Diagenesis, Larry D. Seale, Limaris R. Soto, Lee J. Florea, Beth Fratesi

Lee J Florea, PhD, P.G.

In Cuba, we observed many karst features in a variety of hydrogeologic settings. These hy-drogeologic settings occur in close proximity only because of the complex tectonic history of the is-land. We observed caves within rocks ranging from Pleistocene to Jurassic, and representing a range of diagenetic ages from eogenetic to teloge-netic. Our observations are from the western one-third of the island of Cuba; however, we believe they are representative of hydrogeologic settings found throughout the island.

A Correlation Study Of Wind Speeds At Norski Runs And Valders Hall Of Science, Paul D. B. Skrade, Dale M. Nimrod

Paul D. B. Skrade

1976 and 1977 wind speeds were recorded from the roof of Valders Hall of Science, Luther College, Decorah, Iowa in a correlation study of wind-sun energy. Summer 2004 wind speeds and directions were recorded with the hopes of correlating the speeds at Valders Hall of Science and at Norski Runs, Chattahoochie County Park, Decorah, Iowa, a site for a potential Luther College wind farm. Motivation behind the study was to determine if topology of Upper Iowa River Valley affected wind speeds.

Porównanie Poprzedniej I Aktualnej Metodyki Modelowania Rozprzestrzeniania Się Zanieczyszczeń W Powietrzu Opartej Na Modelu Smugi Gaussa, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

Necessity of adaptation the Polish law in the field of the environment protection to the European Union law caused to adopt new criterions and methods of the air quality assessment. One of the methods of the air quality assessment is modeling of the substance levels in the air based on the calculation of the air pollutant dispersion in the atmosphere. Thus necessary changes also encompassed the basic methodology applied in our country for many years that had made possible calculation of the air pollution caused by existing and new emission sources. After some modifications the computation method was adopted as …

Referencyjna Metodyka Modelowania Poziomów Substancji W Powietrzu Na Tle Innych Modeli Obliczeniowych, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

In the paper some differences between various computational models applied to the atmospheric dispersion modeling were presented. These models each other were compared as regards the expanse-time scale of computation, description way of the wind field and the frame of reference for the air particle moves. Particular attention was paid to the Gauss plume model that was a base for a modeling method of the pollutant levels in the air accepting in Poland as the reference methodology. A general description, applications and limitations of this methodology were presented, as well data essential to the computation, way of the data preparing …

Miniaturen. Studien Zu Kalkül Und Kreativität 1998-2002, Rudolf Kaehr

Rudolf Kaehr

Informatik, künstlerische Praktik und Kunsttheorie der digitalen Bildtechnologien NULL&NICHTS; weder leer, noch nicht – oder Kraut und Rüben Gedanken zu einer autonomen Medienwissenschaft Das Menschenbild aus der Sicht einer polykontexturalen Systemtheorie Thesen zum trans-klassischen Menschenbild Gebaute Phantasien, unkontrollierbare Schwankungen Kreativität und Kalkül Ver_Endungen in/der Programmierbarkeit Diagrammatik: Denken a la Carte Zur Verstörung des (H)ortes der Zerstörung Zur Kenogrammatik der Medientheorie

Dynamic Semantic Web, Rudolf Kaehr

Rudolf Kaehr

Dynamic Semantic Web (DSW) is based at first on the techniques, methods and paradigms of the emerging Semantic Web movement and its applications. DSW is advancing one fundamental step further from a static to a dynamic concept of the Semantic Web with extended flexibility in the navigation between ontologies and more profound transparency of the informational system. Web Services are now redefinded by Semantic Web. To proof the advantages of DSW, it is the main aim of this project to develop the tools and methods necessary to develop a DSW based Web Service (DSW business application). The existing framework of …

Light & Dark: The Hidden Wonders Of Buck Creek, Lee J. Florea

Lee J Florea, PhD, P.G.

As early morning mists rise from the banks of its supple waters, beams of light penetrate the Buck Creek valley illuminating its beauty. While light illuminates most of the land, there are secret places, nestled within the forest where darkness reigns supreme. Places beyond the touch of the sun, beyond the influence of seasons. Here time is measured not in cycles of light but by the flow of water and fall of rock. These are the caves, conduits for water past and present. Nestled in the hills of south-central Kentucky the caves along Buck Creek provide the lifeblood for a …

Developing A Research And Restoration Plan For Arctic-Yukon-Kuskokwim (Western Alaska) Salmon, Craig L. Fleener

Craig L Fleener

No abstract provided.

Long-Range Downstream Effects Of Urban Runoff And Acid Mine Drainage In The Debed River, Armenia: Insights From Lead Isotope Modeling, Robert Kurkjian, Charles Dunlap, A. Flegal

Charles Dunlap

Lead concentrations and isotopic compositions measured along 80 km of the Debed River in the Republic of Armenia provide new insights into the geochemical and physical controls on riparian Pb transport by allowing comparison of the long-range, downstream impacts of acid mine drainage with runoff from an industrialized city. The modern background Pb concentration in Armenian surface waters is estimated to be ~0.01 lg/L, based on analyses of remote alpine rivers in Armenia. The lead concentration in the Debed River is 8 µg/L (800 times background) after passing through Vanadzor, the second largest industrial city in Armenia; it then decreases …

Numerical Investigation Of Saturated Source Area Behavior At The Small Catchment Scale, Fred L. Ogden

Fred L. Ogden

The objective of this research is to explore the relationship between small catchment properties and the temporal growth and decay of saturated source areas (SSA). A simple physics-based hydrologic model, which we call the Sandbox model, is developed for this purpose. A thorough sensitivity analysis is undertaken to evaluate model response to variations in model parameters. Sandbox model output is compared to that from the semi-distributed conceptual model, TOPMODEL, a model with a wide spread acceptance. Plotting the temporal evolution of the extent of saturated source area versus catchment average soil water content dur- ing a number of wetting and …

Lead In Residential Soil And Dust In A Mining And Smelting District In Northern Armenia: A Pilot Study, Varduhi Petrosyan, Anna Orlova, Charles E. Dunlap, Emil Babayan, Mark Farfel, Margrit Von Braun

Charles Dunlap

This pilot study of sources of lead exposure in residential settings was conducted in a mining and smelting district in northern Armenia. Samples of exterior soil and dust and interior house dust were collected in and around apartment buildings in Alaverdi where the country’s largest polymetallic smelter is located, and in nearby mining towns of Aghtala and Shamlugh. The NITON XL- 723 Multi-Element XRF analyzer was used for lead testing. Lead levels in samples from Alaverdi were higher than those in Shamlugh and Aghtala. In all three towns, the highest lead levels were found in loose exterior dust samples, and …

Sadc Challenges Country Water Partnerships To Make Impact, Stanley Mubako

Stanley Mubako

No abstract provided.