Physical Sciences and Mathematics Commons^™

Влияние На Окружающую Среду Технологии Непрерывного Литья, Marian Mazur, Marek Bogacki, Robert Oleniacz, Agnieszka Łopata

Robert Oleniacz

This article presents a complex analysis of the impact of the technology of continuous casting of steel (CCS) on the rate of the air pollutant emissions from one of the Polish steel and iron plants. The emission sources occurring in the production process have been identified and their rate has been determined. The implementation of CCS has brought about significant changes in the production cycle of the steel plant and it also has caused an increase of the production effectiveness of steel products. The calculated environment effects have shown a considerable emission decrease of all pollutants in the scale of …

Likwidacja Strefy Ochronnej Wokół Huty Katowice W Dąbrowie Górniczej, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

The paper presents the history of the creation, management and liquidation of the protective zone around the Katowice Steelworks and Coke "Przyjaźń" (originally belonging to the "Katowice Steelworks") in Dąbrowa Górnicza (Poland). This zone was created in 1978 on the basis of the air quality impact assessment performed for the steelworks on the assumption steel production capacity of 9 million tons/year and planned production of coke at 3.3 million tons/year. These production volumes have never been achieved. In the 80's and 90's of the 20th century were conducted studies and calculations aimed to verify the nuisance of these plants on …

Termiczne Przekształcanie Odpadów Medycznych W Instalacji Fluidalnej Firmy Seghers – Emisja Zanieczyszczeń Gazowych I Możliwości Jej Ograniczenia, Robert Oleniacz

Robert Oleniacz

The paper presents the results of measurements of concentrations and mass streams of selected components in the flue gases from the thermal treatment of medical waste in the Seghers incinerator based on fluidized bed reactor.

The tests were carried out at the measuring points located both before and after of the flue-gas cleaning system based on the injection of dry hydrated lime and carbon sorbent and a ceramic filter. In this way it was possible to determine the effectiveness of the removal of selected air pollutants in the dry cleaning system. Analysis of the results of measurements made ​​it possible …

Dissolution Of Entrapped Dnapls In Variable Aperture Fractures: Experimental Data And Empirical Model, Sarah E. Dickson, Neil R. Thomson

Sarah E Dickson

An appreciation of the dissolution from entrapped nonaqueous phase liquids (NAPLs) in fractures is essential as we attempt to understand and predict the fate of NAPLs present in fractured rock systems. Eight long-term dissolution experiments using 1,1,1-trichloroethane and trichloroethylene were conducted in two laboratory-scale dolomitic limestone variable aperture fractures under various conditions. Between 560 and 2600 fracture volumes of water were passed through the fractures resulting in the removal of 10−60% of the initial mass trapped. The effluent concentration profiles revealed three distinct and characteristic stages of dissolution:  an initial pseudosteady stage, a transient stage, and a tailing stage. On …