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- Iron and steel industry (7)
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- Waste co-combustion (7)
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- Alternative fuels (6)
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Articles 1 - 30 of 81
Full-Text Articles in Engineering
Impact Of The Municipal Solid Waste Incineration Plant In Warsaw On Air Quality, Robert Oleniacz
Impact Of The Municipal Solid Waste Incineration Plant In Warsaw On Air Quality, Robert Oleniacz
Robert Oleniacz
The only Polish municipal solid waste (MSW) incinerator has been operating within the Municipal Solid Waste Disposal Plant in Warsaw since 2000. In the paper selected results of the air quality impact assessment for this incinerator during an operating period of one year (2008) are presented. With respect to the incinerated waste amounts and emission levels, the analysed period can be considered typical for this facility. Assessment of the air quality impact was carried out by assessing air pollutant emissions in reference to the applicable emission limit values and by modeling atmospheric dispersion of these pollutants. It has been found …
Ocena Wpływu Na Jakość Powietrza Procesu Przygotowania Obszaru Wiertni Przy Poszukiwaniach Gazu Z Łupków, Marek Bogacki, Robert Oleniacz, Monika Janicka
Ocena Wpływu Na Jakość Powietrza Procesu Przygotowania Obszaru Wiertni Przy Poszukiwaniach Gazu Z Łupków, Marek Bogacki, Robert Oleniacz, Monika Janicka
Robert Oleniacz
This chapter presents the model calculation results of the level of concentration of air pollutants emitted during works related to the preparation of the drilling pad for the shale gas exploration. The most significant emission sources located in the drilling pad, including rig access roads, paved and unpaved, were analyzed. The emission field was defined by the parameterization of various sources/processes, taking into account the technical, technological, organizational and environmental conditions. The calculations of the pollutants dispersion in the air were carried out using the Gaussian reference model. The results of numerical calculations showed that the only substance likely to …
Ocena Efektów Termomodernizacji Budynków Jednorodzinnych. 2. Ograniczenie Wpływu Na Jakość Powietrza Atmosferycznego, Robert Oleniacz, Magdalena Kasietczuk, Mateusz Rzeszutek
Ocena Efektów Termomodernizacji Budynków Jednorodzinnych. 2. Ograniczenie Wpływu Na Jakość Powietrza Atmosferycznego, Robert Oleniacz, Magdalena Kasietczuk, Mateusz Rzeszutek
Robert Oleniacz
The article assesses to what extent reduced the impact on air quality of a complex of detached coal-fired houses as a result of some thermal renovation works which lowered the fuel consumption and reduced emissions of pollutants into the air. The assessment was done on the basis of results of dispersion modelling for selected substances (SO2, NO2, CO, PM10, B(a)P and PCDD/F) in the ambient air with the use of CALMET/CALPUFF models. The calculation process encompassed preparation of the data on spatial features of the area, making a three-dimensional grid of meteorological data, definition of geometrical parameters of substitute emitters …
Emisja Dioksyn I Furanów Z Procesu Współspalania Paliw Alternatywnych W Piecach Cementowych, Magdalena Kasietczuk, Robert Oleniacz, Marian Mazur
Emisja Dioksyn I Furanów Z Procesu Współspalania Paliw Alternatywnych W Piecach Cementowych, Magdalena Kasietczuk, Robert Oleniacz, Marian Mazur
Robert Oleniacz
The chapter discusses the problem of air emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDFs) from the process of cement clinker production. In the analyzed cement kilns significant amount of fossil fuels is replaced with alternative fuels, mainly waste-derived fuels. Thus, particular attention has been paid to the potential impact on the level of the emissions such factors as type and quantity of used wastes and their ways of introducing into the kiln during co-combustion. The analysis include the results of measurements of PCDD/PCDF concentrations in the flue gases of selected cement kilns and differences in used raw materials, methods of …
Niekontrolowane Spalanie Odpadów I Pozostałości Roślinnych Na Terenach Wiejskich – Przykład Inwentaryzacji Źródeł Emisji I Oceny Wpływu Na Jakość Powietrza, Robert Oleniacz, Barbara Bacik, Marcelina Spiszak
Niekontrolowane Spalanie Odpadów I Pozostałości Roślinnych Na Terenach Wiejskich – Przykład Inwentaryzacji Źródeł Emisji I Oceny Wpływu Na Jakość Powietrza, Robert Oleniacz, Barbara Bacik, Marcelina Spiszak
Robert Oleniacz
The most troublesome air pollutant emissions that occur in rural areas are associated with the operation of domestic furnaces (mainly during the heating season) and the processes of open burning of plant residues (mainly outside the heating season). The paper presents an example of emission inventory for this type of sources in two submontane villages of Małopolska Voivodeship (Poland) based on the results of the questionnaire survey and an attempt to assess the impact on air quality of these sources, including the potential uncontrolled burning of waste.The conducted questionnaire survey showed the use to home heating mainly solid fuels (first …
Assessment Of The Impact Of Municipal Waste Incineration Plants On Air Quality And The Possibilities Of Its Reduction, Robert Oleniacz
Assessment Of The Impact Of Municipal Waste Incineration Plants On Air Quality And The Possibilities Of Its Reduction, Robert Oleniacz
Robert Oleniacz
The planned construction of new municipal waste incineration plants over the next few years in Poland results in protests of local communities, which arise mainly from fear of an increase in the air pollution in its vicinity. These protests extend the investment process and hinder the selection of incineration plant location, but on the other hand they necessitate the use of more efficient solutions to reduce their impact on the air quality.This paper characterizes the world's most widely used technology for municipal solid waste incineration (MSWI) and assesses the possible maximum impact on the air quality of an exemplary MSWI …
Wykorzystanie Atmosferycznego Modelu Dyspersji Calpuff Do Oceny Oddziaływania Na Jakość Powietrza Planowanego Zakładu Termicznego Przekształcania Odpadów Komunalnych W Krakowie, Mateusz Rzeszutek, Robert Oleniacz
Wykorzystanie Atmosferycznego Modelu Dyspersji Calpuff Do Oceny Oddziaływania Na Jakość Powietrza Planowanego Zakładu Termicznego Przekształcania Odpadów Komunalnych W Krakowie, Mateusz Rzeszutek, Robert Oleniacz
Robert Oleniacz
The aim of this study was to determine the influence of the planned Municipal Waste Thermal Treatment Plant in Krakow on air pollution. Air quality impact assessment was based on the current state of the legal formalities (including emission limit values for waste incineration plants) and the results of the air pollutant atmospheric dispersion modeling for one month period. In this study to calculate of air pollutant dispersion was used model system CALMET/CALPUFF. Using the CALMET model variables in time and space weather condition were calculated. CALPUFF model were performed to computing of propagation of air pollution. Analysis of the …
Identifying The Retention Mechanisms Of (Bio)Colloids In Single, Saturated, Variable-Aperture Fractures, Sandrina Rodrigues
Identifying The Retention Mechanisms Of (Bio)Colloids In Single, Saturated, Variable-Aperture Fractures, Sandrina Rodrigues
Sarah E Dickson
No abstract provided.
Co-Incineration Of Large Quantities Of Alternative Fuels In A Cement Kiln – The Problem Of Air Pollutant Emissions, Robert Oleniacz, Magdalena Kasietczuk
Co-Incineration Of Large Quantities Of Alternative Fuels In A Cement Kiln – The Problem Of Air Pollutant Emissions, Robert Oleniacz, Magdalena Kasietczuk
Robert Oleniacz
Over the last few years, a significant increase in the use of alternative fuels in the Polish cement industry has been observed. These are mainly waste and waste-derived fuels. The national leader in this field is Chełm cement plant (Poland), with the share of alternative fuels in the cement kiln heat balance reaching in 2012 the level of 78.5%. In this paper, an analysis of the emission rate of air pollutants from cement clinkering process in the above-mentioned cement plant in the years 1998–2012 was carried out, using the results of continuous and periodic measurements. The compliance with the emission …
Air Pollution Emissions During Baking Of Semi-Finished Graphite Products In A Tunnel Furnace, Marek Bogacki, Robert Oleniacz, Marian Mazur
Air Pollution Emissions During Baking Of Semi-Finished Graphite Products In A Tunnel Furnace, Marek Bogacki, Robert Oleniacz, Marian Mazur
Robert Oleniacz
The baking of semi-finished graphite products in a tunnel furnace is the source of many air pollutants present in both the gaseous and solid phases. The goal of this study was to assess emission rates into the air of the substances such as: CO, NOx, SO2, H2S, CH4, aliphatic hydrocarbons up to C6, benzene and its homologues (BTEX), total dust and tar substances, and polycyclic aromatic hydrocarbons (PAHs) contained in the dust. The research showed a small time-dependence of the emission rates for the majority of the substances analysed, which is, to a large extent, a result of the long …
The Influence Of Hydrodynamic Forces On The Transport And Retention Of Colloids In Single Saturated Dolomitic Limestone Fractures, Mike Schutten
The Influence Of Hydrodynamic Forces On The Transport And Retention Of Colloids In Single Saturated Dolomitic Limestone Fractures, Mike Schutten
Sarah E Dickson
No abstract provided.
Wpływ Procesu Współspalania Odpadów W Piecu Cementowym Na Jakość Powietrza / Impact Of Waste Co-Incineration Process In A Cement Kiln On Air Quality, Robert Oleniacz, Magdalena Kasietczuk
Wpływ Procesu Współspalania Odpadów W Piecu Cementowym Na Jakość Powietrza / Impact Of Waste Co-Incineration Process In A Cement Kiln On Air Quality, Robert Oleniacz, Magdalena Kasietczuk
Robert Oleniacz
The work presents the general requirements for the control of emissions to air from waste co-combustion (co-incineration) plants, with particular emphasis on rotary kilns used for clinker production. Air emissions from the cement kiln during co-combustion of alternative fuels and the impact assessment on air quality are also presented. The object of the study was one of the Polish cement plant, which uses significant amounts of solid waste derived fuels (with over 70% share in the cement kiln heat balance). Assessment of the impact on air quality was made based on the results of the modeling of atmospheric dispersion of …
Problem Niekontrolowanego Spalania Odpadów I Pozostałości Roślinnych W Obszarze Wiejskim Na Wybranym Przykładzie, Robert Oleniacz, Barbara Bacik
Problem Niekontrolowanego Spalania Odpadów I Pozostałości Roślinnych W Obszarze Wiejskim Na Wybranym Przykładzie, Robert Oleniacz, Barbara Bacik
Robert Oleniacz
This paper presents the results of surveys on the problem of uncontrolled burning of waste in domestic stoves and boilers for central heating and open burning of plant residues in rural areas. The questionnaires were conducted among the inhabitants of one of Polish village (Łąkta Dolna), located in the Malopolska province, in the submontane area. The study comprised 80.2% of all households. As is clear from conducted surveys waste were burned in more than 80% of surveyed houses and more than half of respondents admitted to the open burning of plant residues. The percentage of people burning waste and plant …
Współspalanie Odpadów W Suchym Piecu Cementowym A Emisja Dwutlenku Siarki I Chlorowodoru, Robert Oleniacz
Współspalanie Odpadów W Suchym Piecu Cementowym A Emisja Dwutlenku Siarki I Chlorowodoru, Robert Oleniacz
Robert Oleniacz
The paper presents an assessment of the impact of waste co-combustion in a cement kiln on air emissions of HCl and SO2 recorded continuously. The subject of the research was cement kiln (dry method) with a capacity of 8500 Mg/day, equipped with a four cyclone heat exchangers and a calciner with an additional chamber for co-incineration. In the analysed period alternative fuels (mainly waste) were used in various amounts ranging up to about 35 kg / Mg clinker (with the heat substitution up to 20%) in the kiln and calciner. Chlorine and sulfur inputs to the process were up to …
A Comparison Of Biocolloid And Colloid Transport In Single Saturated Rock Fractures, Junlei Qu
A Comparison Of Biocolloid And Colloid Transport In Single Saturated Rock Fractures, Junlei Qu
Sarah E Dickson
No abstract provided.
Emisja Zanieczyszczeń Pyłowo-Gazowych Z Procesu Wypalania Półproduktów Grafitowych W Piecu Tunelowym, Marek Bogacki, Robert Oleniacz, Marian Mazur, Przemysław Szczygłowski
Emisja Zanieczyszczeń Pyłowo-Gazowych Z Procesu Wypalania Półproduktów Grafitowych W Piecu Tunelowym, Marek Bogacki, Robert Oleniacz, Marian Mazur, Przemysław Szczygłowski
Robert Oleniacz
The baking of semi-finished graphite products in a tunnel furnace is the source of many air pollutants present in both the gaseous and solid phases. The goal of this study was to assess emission rates into the air of the substances such as: CO, NOx, SO2, H2S, CH4, aliphatic hydrocarbons up to C6, benzene and its homologues (BTEX), total dust and tar substances, and polycyclic aromatic hydrocarbons (PAHs) contained in the dust. The research showed a small time-dependence of the emission rates for the majority of the substances analysed, which is, to a large extent, a result of the long …
Removal Of Perchlorate (Clo4-) From Water Using Pulsed Arc Electrohydraulic Discharge (Paed), Sarah E. Dickson
Removal Of Perchlorate (Clo4-) From Water Using Pulsed Arc Electrohydraulic Discharge (Paed), Sarah E. Dickson
Sarah E Dickson
No abstract provided.
New Observations Of Gas-Phase Expansion Above A Dense Non-Aqueous Phase Liquid Pool, Kevin G. Mumford, James E. Smith, Sarah E. Dickson
New Observations Of Gas-Phase Expansion Above A Dense Non-Aqueous Phase Liquid Pool, Kevin G. Mumford, James E. Smith, Sarah E. Dickson
Sarah E Dickson
The partitioning of volatile dense nonaqueous phase liquid (DNAPL) compounds to a discontinuous gas phase results in the repeated expansion, fragmentation, and vertical mobilization of gas clusters. This process has the potential to significantly affect the dissolution of DNAPL source zones and the characterization of DNAPL-contaminated sites, but has not been included in common conceptual models. This study presents new observations of discontinuous gas-phase growth above a 1,1,1-trichloroethane pool in a two-dimensional flow cell packed with 1.1-mm diameter sand. In contrast to the behavior observed in coarse glass beads, these visualization results show that the gas phase evolves as a …
Influence Of Aperture Field Heterogeneity And Anisotropy On Dispersion Regimes And Dispersivity In Single Fractures, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo
Influence Of Aperture Field Heterogeneity And Anisotropy On Dispersion Regimes And Dispersivity In Single Fractures, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo
Sarah E Dickson
A 33 factorial experimental design was implemented to numerically investigate the interactive effect of the mean (μ b ), standard deviation (σ b ), and anisotropic ratio (AR) (λ b x /λ b y ) of single-fracture apertures on dispersion regimes (specifically Taylor dispersion and geometric dispersion) and dispersivity. The Reynolds equation was solved to obtain the flow fields in each computer-generated fracture, and the random walk particle tracking method was used to simulate solute transport. The simulation results show that (1) for a fixed hydraulic gradient, the dominant dispersion regime is controlled by μ b , and to a …
Differential Transport And Dispersion Of Colloids Relative To Solutes In Single Fractures, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo
Differential Transport And Dispersion Of Colloids Relative To Solutes In Single Fractures, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo
Sarah E Dickson
This work employed numerical experiments simulating colloid and solute transport in single parallelplate fractures, using the random walk particle tracking method, to demonstrate that (1) there exists an aspect ratio of the colloid radius to half the fracture aperture, do, where the average velocities of colloids and solutes are similar. When d > do, the velocity distribution assumption is satisfied, and the fact that the ratio of the colloid transport velocity to the solute transport velocity, sp, decreases as d increases is well documented in the literature. However, when d < do, the velocity distribution assumption is violated, and sp increases as d increases and (2) the Taylor dispersion coefficient and its extension by James and Chrysikopoulos [S.C. James, C. V. Chrysikopoulos, J. Colloid Interface Sci. 263 (2003) 288] will overestimate the colloid dispersion coefficient significantly. Additionally, numerical experiments simulating colloid and solute transport in variable-aperture fractures demonstrated that sp and DL,coll /DL,solute decrease with increasing CoV, and the anisotropy ratio only plays a minor role compared to the CoV. These observations have important implications towards the interpretation of colloid transport in both porous and fractured media.
Ocena Wpływu Arcelormittal Poland S.A. Oddział W Krakowie Na Jakość Powietrza, Marian Mazur, Robert Oleniacz, Marek Bogacki, Przemysław Szczygłowski
Ocena Wpływu Arcelormittal Poland S.A. Oddział W Krakowie Na Jakość Powietrza, Marian Mazur, Robert Oleniacz, Marek Bogacki, Przemysław Szczygłowski
Robert Oleniacz
The work presents selected results of atmospheric dispersion modeling and air quality impact assessment for pollutant emissions from installations of ArcelorMittal Poland S.A. Unit in Krakow (Poland). The assessment was carried out for the most unfavourable emission variant probable to take place in the period 2007-2016. In the calculations were taken into consideration typical for steelworks particle matter pollutants (total dust, heavy metals, tar substances and PAHs including benzo-a-piren) and gaseous substances (SO2, NO2, CO, HC, HCl, HF, NH3, HCN, H2S, CS2, H2SO4, BTX, phenol and pyridine). As the result of estimations, carried out according to the Polish reference method …
Air Pollutant Emissions From Process Of Mixing Materials Used For Manufacturing Small Products From Carbon And Graphite, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski
Air Pollutant Emissions From Process Of Mixing Materials Used For Manufacturing Small Products From Carbon And Graphite, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski
Robert Oleniacz
The paper characterises the method of preparing the HCC and Rubba-type materials used to manufacture small carbon and graphite products, and the composition of waste gases escaping from the mixers for these materials. For the process of mixing the two materials under examination, two measurement series were completed, mainly covering the period from when the binder was added to the properly pre-heated dry mass until the mixer discharged. The results shown apply only to those substances which occur just in the gaseous phase, that is CO, CO2, O2, H2, aliphatic hydrocarbons (C1-C6) and BTX (benzene, toluene, ethylbenzene and xylene) as …
Badania Zawartości Substancji Gazowych W Gazach Odprowadzanych Z Procesu Przygotowania Tworzyw Do Produkcji Drobnych Wyrobów Węglowych I Grafitowych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski
Badania Zawartości Substancji Gazowych W Gazach Odprowadzanych Z Procesu Przygotowania Tworzyw Do Produkcji Drobnych Wyrobów Węglowych I Grafitowych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski
Robert Oleniacz
The paper characterises the method of preparing the HCC and Rubba-type materials used to manufacture small carbon and graphite products, and the composition of waste gases escaping from the mixers for these materials. For the process of mixing the two materials under examination, two measurement series were completed, mainly covering the period from when the binder was added to the properly pre-heated dry mass until the mixer discharged. The results shown apply only to those substances which occur just in the gaseous phase, that is CO, CO2, O2, H2, aliphatic hydrocarbons (C1-C6) and BTX (benzene, toluene, ethylbenzene and xylene). Due …
Badania Zawartości Pyłu Ogółem I Węglowodorów Wyższych W Gazach Odprowadzanych Z Procesu Przygotowania Tworzyw Do Produkcji Drobnych Wyrobów Węglowych I Grafitowych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski
Badania Zawartości Pyłu Ogółem I Węglowodorów Wyższych W Gazach Odprowadzanych Z Procesu Przygotowania Tworzyw Do Produkcji Drobnych Wyrobów Węglowych I Grafitowych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski
Robert Oleniacz
The paper presents the results of measurements of concentrations of dust substances in flue gases from the mixing process of two type od raw materials (HCC and Rubba) used in the manufacture of fine carbon and graphite products. These raw materials differed in the method of preparation including the heating temperature in various stages of mixing and duration of the process. Due to the use in the mixing process liquid binders, significant amounts of tar substances in liquid and solid phase were discharged from the mixers. In the analyzed flue gases was determined total dust content of tar substances, polycyclic …
Ocena Skuteczności Działania Suchego Systemu Oczyszczania Spalin Ze Spalania Odpadów Medycznych Opartego Na Wtrysku Sorbentu Wapniowo-Węglowego, Robert Oleniacz
Ocena Skuteczności Działania Suchego Systemu Oczyszczania Spalin Ze Spalania Odpadów Medycznych Opartego Na Wtrysku Sorbentu Wapniowo-Węglowego, Robert Oleniacz
Robert Oleniacz
The research object was a medical waste incineration plant with a capacity of 150 kg per hour equipped with a flue gas treatment system based on dry sorption process using a lime-carbon reagent with adsorbent removing in high-efficiency particulate collector. As the dry sorption agent was used a mixture of high reactive hydrated lime and activated carbon injected to combustion gases by pneumatic feeder. Activated carbon content in the mixture was 5-10 % by mass. Applied collector was ceramic filter with total filtration area of 120 m2 and guaranteed outlet dust concentration under 5 mg/Nm3. Among others things the aims …
Bench-Scale Disinfection Of Bacteria And Viruses With Pulsed Arc Electrohydraulic Discharge, L H. Lee, A J. Arnold, C A. Santillan, M B. Emelko, Sarah E. Dickson, J. -S Chang
Bench-Scale Disinfection Of Bacteria And Viruses With Pulsed Arc Electrohydraulic Discharge, L H. Lee, A J. Arnold, C A. Santillan, M B. Emelko, Sarah E. Dickson, J. -S Chang
Sarah E Dickson
Pulsed arc electrohydraulic discharge (PAED) offers concurrent treatment of chemical and microbial target compounds in water by several mechanisms. Here, Escherichia coli, Bacillus subtilis spore, and MS2 bacteriophage inactivation by PAED were investigated using two bench-scale reactors (0.7 and 3 L). A plasma channel was created between a pair of iron electrodes set 0.5 mm apart in these reactors. Pulsed applied voltage was supplied at approximately 0.3 kJ/pulse (~100 ìsec). In the 0.7-L reactor, median E. coli, B. subtilis, and MS2 reductions of 2.4-, 4.6-, and 3.7-log, respectively, were observed after approximately 80 seconds of treatment in water with a …
Expansion Of The Discontinuous Gas Phase And Its Effect On Mass Flux From A Non-Aqueous Phase Liquid (Napl) Pool, Kevin G. Mumford, James E. Smith, Sarah E. Dickson
Expansion Of The Discontinuous Gas Phase And Its Effect On Mass Flux From A Non-Aqueous Phase Liquid (Napl) Pool, Kevin G. Mumford, James E. Smith, Sarah E. Dickson
Sarah E Dickson
The partitioning of non-aqueous phase liquid (NAPL) compounds to a discontinuous gas phase results in the repeated spontaneous expansion, snap-off, and vertical mobilization of the gas phase. This mechanism has the potential to significantly affect the mass transfer processes that control the dissolution of NAPL pools by increasing the vertical transport of NAPL mass and increasing the total mass transfer rate from the surface of the pool. The extent to which this mechanism affects mass transfer from a NAPL pool depends on the rate of expansion and the mass of NAPL compound in the gas phase. This study used well-controlled …
On The Appropriate “Equivalent Aperture” For The Description Of Solute Transport In Single Fractures: Laboratory-Scale Experiments, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo
On The Appropriate “Equivalent Aperture” For The Description Of Solute Transport In Single Fractures: Laboratory-Scale Experiments, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo
Sarah E Dickson
Three distinct definitions of ‘‘equivalent aperture’’ have been used in the literature to describe variable-aperture fractures; however, significant inconsistencies exist in the literature as to which ‘‘equivalent aperture’’ is appropriate for simulating solute transport. In this work, a systematic series of hydraulic and tracer tests was conducted on three laboratory-scale fracture replicas, and the cubic law, mass balance, and frictional loss apertures were calculated. The analytical solution of the one-dimensional advectiondispersion equation was fit to the experimental breakthrough curves. Additionally, one of the experimental aperture fields was measured directly using a light transmission technique. The results clearly demonstrate that the …
Slow Gas Expansion In Saturated Natural Porous Media By Gas Injection And Partitioning With Non-Aqueous Phase Liquids, Kevin G. Mumford, Sarah E. Dickson, James E. Smith
Slow Gas Expansion In Saturated Natural Porous Media By Gas Injection And Partitioning With Non-Aqueous Phase Liquids, Kevin G. Mumford, Sarah E. Dickson, James E. Smith
Sarah E Dickson
The partitioning of volatile non-aqueous phase liquid (NAPL) compounds to a discontinuous gas phase can result in the expansion of that gas phase, and the resulting gas flow can significantly affect the mass transfer from NAPL source zones. This recently reported gas flow generated by the spontaneous expansion of a discontinuous gas phase has not been extensively characterized in the literature. This study measured the expansion rate of a single gas cluster in a 1.1 mm sand above a pool of trans-1,2-dichloroethene (tDCE) in small-scale flow cell experiments. To characterize the gas flow, gas injection experiments in three sizes of …
Spontaneous Expansion And Mobilization Of Gas Above Dnapl, Kevin G. Mumford
Spontaneous Expansion And Mobilization Of Gas Above Dnapl, Kevin G. Mumford
Sarah E Dickson
No abstract provided.