Civil and Environmental Engineering Commons^™

Oczyszczanie Gazów Odlotowych Ze Spalania Odpadów Niebezpiecznych, Robert Oleniacz

Robert Oleniacz

Flue gas cleaning system is a very important part of each hazardous waste incineration plant. Air pollutant emission limit values permissible for this process in Member States of the European Union are so rigorous that the installation designers there are forced to use very effective and of course expensive solutions. In the paper a review of methods and systems used to the treatment of flue gases from hazardous waste incineration is presented. This can be particularly useful in the face of the adaptation of existing waste incineration plant operating in Poland with European Union requirements.

English title: Cleaning of flue …

Ocena Zasięgu Istotnego Oddziaływania Emisji Zanieczyszczeń Z Huty Katowice Pod Kątem Likwidacji Strefy Ochronnej, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

The paper presents the results of air quality impact assessment of Katowice Steelworks in Dąbrowa Górnicza (Poland) in the protective zone. On the basis of calculations, it was found that in terms of air pollution there is a reasonable possibility of complete elimination of existing protective zone around these industrial plants.

English title: Assessment of the extent of significant effects of pollutant emissions from the "Katowice" Steelworks in terms of liquidation of the environmental protection zone.

Wpływ Wprowadzenia Ciągłego Odlewania Stali Na Wielkość Emisji Zanieczyszczeń Z Huty Katowice, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

The paper presents the results of research carried out in 1999 in the Department of Continuous Casting of Steel (CCS) Machines in "Katowice" Steelworks in Dąbrowa Górnicza (Poland), whose main objective was the identification of emission sources of dust and gaseous pollutants, determination of emission factors and assessment of environmental effects associated with the operation of this technology. Particular attention was paid for assessing the impact of the introduction the CCS technology to reduce total emissions from "Katowice" Steelworks.

English title: Impact of the introduction of continuous casting of steel on pollutant emissions from "Katowice" Steelworks.

Bezpośrednie I Pośrednie Efekty Wprowadzenia Ciągłego Odlewania Stali W Bilansie Emisji Zanieczyszczeń Z Huty Żelaza, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

This paper presents a comprehensive analysis of the impact of continuous casting technology on emissions of air pollutants from "Katowice" Steelworks in Dąbrowa Górnicza (Poland). Sources of emissions occurring in the manufacturing process and emissions levels have been identified. Implementation of continuous casting of steel has increased the efficiency of production and brought substantial ecological effects.

English title: Direct and indirect effects of introduction of continuous casting of steel in the balance sheet of pollutant emissions from "Katowice" Steelworks.

Development Of High Performance Concrete Using Silica Fume At Relatively High Water-Binder Ratios, Hilmi Mahmud

Hilmi Mahmud

The aim of this study was to investigate the possibility of developing high performance concrete (HPC) using silica fume (SF) at relatively high water-binder ratios. For this purpose, water-binder ratios of 0.45 and 0.50 were considered. Test specimens were air and water cured and exposed to a medium temperature range of 20 °C to 50 °C. The compressive strength, modulus of elasticity and initial surface absorption (ISA) of hardened concrete were determined in the laboratory. Test results indicated that concrete under water curing offers the best results. The highest level of compressive strength and modulus of elasticity and the lowest …

Pesticide Waste Incineration In The Wet Process Cement Kiln, Marian Mazur, Robert Oleniacz, Marek Bogacki, Stanisław Słupek

Robert Oleniacz

The presentation discusses the problem of pesticide wastes in Poland that have been accumulated underground in concrete graveyards or bunkers. Their progressive unsealing poses a significant health risk to people due to groundwater, soil and air pollution. There are not many of professional hazardous waste incineration plants in Poland, therefore, the paper proposes the use of cement kiln for thermal treatment of such waste. Polish cement industry is interested in utilization of various wastes (e.g. in the capacity of alternative fuels) in the process connected with the cement clinker production in rotary kilns. High temperatures existing in cement kilns (ca. …

Developing Construction Claims For Arbitration: Two Arbitrators' Viewpoint, Douglas D. Gransberg, Charles A. Joplin

Douglas D. Gransberg

Two arbitrators' viewpoints of construction claims development are provided in the hope that the information will be useful to those needing to resolve construction claims by arbitration. It also may help to reduce the volume of costly and unnecessary documentation. Because of arbitration's relative formality, attorneys representing construction contractors and owners tend to prepare their cases in the same way as they would for litigation. This leads to potential information overkill, which threatens the arbitration panel's ability to easily sort through and understand the issues in its quest for a fair and equitable decision.

Struktura Emisji Związków Fluoru Z Hutnictwa Żelaza Na Przykładzie Huty Katowice, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

As recently as a dozen or so years ago ferrous metallurgy was known as one of the biggest source of fluorine compound emissions to the atmosphere. Nevertheless production technology and raw material changes occurring in this industry cause continuous decreasing of their participation in the total fluorine emission. On the ground of investigations that have been carried out in the Katowice Steelworks (Poland) in the last few years, participation of particular technological processing in the water-soluble fluorine compound emissions (which are regarded as toxic) were presented in the paper, as well as a position of fuel combustion process (that take …

Analiza Możliwości Likwidacji Stref Ochronnych Wokół Wybranych Zakładów Przemysłu Hutniczego I Koksochemicznego, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

Polish industrial plants with protective zones delimited in the past, have been faced with the necessity to liquidation of these zones before 2005. At the same time the plants must not cause any harmful influence over environment outside the area which they have title deed to. Determination of the current range of this impact is very important due to the high costs of a possible purchase of land exposed to the harmful effects. The study analyzes the possibility of verifying the course of borders two existing protective zones: around Katowice Steelworks and Coking Plant "Przyjaźń" in Dąbrowa Górnicza (the first …

Technologia Ciągłego Odlewania Stali I Jej Wpływ Na Ograniczenie Emisji Zanieczyszczeń Z Procesów Hutniczych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Agnieszka Łopata, Anita Niedojadło

Robert Oleniacz

The paper presents a comprehensive analysis of the impact of continuous casting of steel technology on air pollutant emissions in one of the Polish steelworks - Huta Katowice S.A. in Dąbrowa Górnicza. Emission sources occurring in the production process and the levels of pollutant emissions into the air were described. Implementation of continuous casting of steel brought significant changes in the production cycle in steelworks and caused an increase in the efficiency of manufacture of products. Calculated environmental effects showed a significant reduction of all pollutant emissions in the whole plant.

English title: Technology of continuous casting of steel and …

Spopielanie Odpadów Medycznych W Systemie Purotherm-Pyrolise – Zmienność Składu Spalin I Emisji Zanieczyszczeń W Cyklu Załadowczym, Robert Oleniacz, Marian Mazur, Marek Bogacki

Robert Oleniacz

The paper presents selected effects of the cyclical nature of the two-stage process of medical waste incineration on the variation of concentrations of basic constituents and selected gaseous pollutants (NOx, CO, SO2, H2S and HCl) in flue gas discharged from the process. The study included the installation working in the Purotherm-Pyrolise system (waste gasification and gas afterburning) with actual yields of 100-150 kg/h. The phases of the process varied in dynamic and direction changes of the flue-gas composition and the levels of air pollutant emissions were separated and described for these phases. They can be very important for the organization …

Scaling And Parameterization Of Stratified Homogeneous Turbulent Shear Flow, Lucinda H. Shih, Jeffrey R. Koseff, Joel H. Ferziger, Chris R. Rehmann

Chris R. Rehmann

Homogeneous sheared stratified turbulence was simulated using a DNS code. The initial turbulent Reynolds numbers (Re) were 22, 44, and 89, and the initial dimensionless shear rate (S*) varied from 2 to 16. We found (similarly to Rogers (1986) for unstratified flows) the final value of S* at high Re to be [similar] 11, independent of initial S*. The final S* varies at low Re, in agreement with Jacobitz et al. (1997). At low Re, the stationary Richardson number (Ris) depends on both Re and S*, but at higher Re, it varies only with Re. A scaling based on the …

Diapycnal Diffusivity Inferred From Scalar Microstructure Measurements Near The New England Shelf/Slope Front, Chris R. Rehmann, Timothy F. Duda

Chris R. Rehmann

Conductivity microstructure was used to estimate the diapycnal thermal eddy diffusivity KT near the New England shelf/slope front in early August 1997. Two datasets were collected with a towed vehicle. One involved several horizontal tows in and above a warm, salty layer near the seafloor, and the other was from a tow-yo transect that sampled most of the water column. In the bottom layer, KT derived from microstructure is a factor of about 5 smaller than estimates derived from tracer dispersion at the same density level, and the diffusivity decreases sharply as the buoyancy frequency N increases: KT N−3.1. With …

Emergency Response Canadian Pacific Railway Canadian Main Line, Barry A. Palynchuk Phd, Michael J. Loehr, Robert W. Badger, Robert P. Conroy, Clive H. Mackay

Barry A. Palynchuk PhD

In late June 1998, a major storm event occurred in the Adirondack Mountains in the vicinity of Keeseville, New York about 150 miles north of Albany. This storm resulted in unprecedented damage to the Canadian Pacific Railway (CPR) Canadian Mainline along the shores of Lake Champlain. The storm caused 14 major embankment failures and washouts, numerous minor failures, severe bridge foundation scour and a major mainline derailment.

Experimental And Theoretical Modeling Of Dynamically Loaded Surface Foundations On Granular Soils, Jeramy C. Ashlock

Jeramy C. Ashlock

The mechanical properties of a cohesionless granular medium are strongly dependent on the confining stress, which varies three-dimensionally under a surface foundation due to gravitational and surface loading effects. Success in predicting a foundation’s response to dynamic loading is therefore highly dependent on the appropriate choice of material properties for a given theoretical model. Presented in this thesis are critical results from an investigation of dynamically loaded square foundations on granular soil using a geotechnical centrifuge. From the results, it is shown that the characterization of the vertical mode of vibration of the square foundations via the homogeneous half-space theory …

Soil Gas Transport Above A Jet Fuel/Solvent Spill At Plattsburgh Air Force Base, Erich S. Hinlein, David W. Ostendorf, Alan J. Lutenegger, Shawn P. Kelley

Erich S Hinlein

We calibrate a stoichiometrically coupled soil gas diffusion model with spatially resolved observations of oxygen, carbon dioxide, total hydrocarbon, and trichloroethylene vapor concentrations in the unsaturated zone above a weathered jet fuel/solvent spill at Plattsburgh Air Force Base in upstate New York. The calibration suggests that aerobic microorganisms in the capillary fringe degrade jet fuel vapor at a steady rate of 9.5 μg hydrocarbons (m−2 s−1). The solvent does not degrade in the fringe, however, and the model and data estimate a steady evaporation rate of 1.2×10−2 μg TCE (m−2 s−1). Barometric pumping slightly alters the steady concentration profile at …

Soil Gas Transport Above A Jet Fuel/Solvent Spill At Plattsburgh Air Force Base, David Ostendorf, Alan J. Lutenegger, Shawn P. Kelley, Erich S. Hinlein

David Ostendorf

We calibrate a stoichiometrically coupled soil gas diffusion model with spatially resolved observations of oxygen, carbon dioxide, total hydrocarbon, and trichloroethylene vapor concentrations in the unsaturated zone above a weathered jet fuel/solvent spill at Plattsburgh Air Force Base in upstate New York. The calibration suggests that aerobic microorganisms in the capillary fringe degrade jet fuel vapor at a steady rate of 9.5 μg hydrocarbons (m−2 s−1). The solvent does not degrade in the fringe, however, and the model and data estimate a steady evaporation rate of 1.2×10−2 μg TCE (m−2 s−1). Barometric pumping slightly alters the steady concentration profile at …