Temat: Carbon monoxide - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effectiveness of Carbon Monoxide Concentration Reduction on Active Carbon Contact System in Burning Polystyrene Foam
Autorzy:: Fikri, E.
Veronica, A.
Powiązania:: https://bibliotekanauki.pl/articles/123480.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: polystyrene foam
particle size
activated carbon
carbon monoxide
Opis:: One of the wastes generated by PT Beton Elemenindo Perkasa is polystyrene foam waste. Processing of this type of waste is still done with open burning so it has an impact on health and the environmental quality degradation. One of the polystyrene foam waste processing technologies is by constructing a combustion furnace equipped with carbon filter. Activated carbon is one of the air filter media that can absorb harmful gases from the combustion process. The purpose of this research is to identify the effectiveness of carbon monoxide (CO) concentration reduction on active carbon contact system using variation of particle size. This research is a kind of an experimental study involving post test with control design. The number of samples was calculated based on the number of treatments and the number of repetitions in the study. This research used 2 kinds of treatment, including 20 mesh and 30 mesh in 9 repetitions. Independent T-Test statistical analysis showed a significant difference (p-value = 0.001) between the variation of particle size of activated carbon and the CO parameters with the average of the most effective reduction percentage on particle-sized active carbon of 30 mesh was 77.95%.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 1-6
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Idoor Air Quality with Particular Reference to Carbon Monoxide in the Room – A Pilot Study
Autorzy:: Wiater, Józefa
Gładyszewska-Fiedoruk, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/2105291.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: air pollution
carbon monoxide
smoking cigarettes
air quality
Opis:: Cigarette smoking are the most important reasons for increased carbon monoxide (CO) level in exhaled air. During the experiment, the CO level in indoor air in room was measured. Outdoor air quality data including atmospheric CO concentration, obtained from the own measured and data from the weather platform “freemeteo”. The measurements were carried out with the following variants: outside air, a room ventilated without people, nonsmokers, smokers and non-smoking people, smokers entering the room after smoking cigarettes, smokers who smoke in the room. As proven by measurements, carbon monoxide carried in the lungs by smokers has low concentrations and should not threaten the health of non-smoking users of rooms. The maximum concentration of carbon monoxide in the room was 1.4 ppm. In the external air, the average concentration of carbon monoxide was exactly as much as reported in the literature – 0.3 ppm.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 286--293
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide
Autorzy:: Ivanenko, Olena
Gomelya, Nikolai
Shabliy, Tetyana
Trypolskyi, Andrii
Nosachova, Yuliia
Leleka, Serhii
Trus, Inna
Strizhak, Peter
Powiązania:: https://bibliotekanauki.pl/articles/1838428.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: carbon monoxide
flue gas
purification
catalyst
oxidation
conversion
Opis:: The necessity of development of technical solutions that will allow to reduce carbon monoxide emissions of flue gases of industrial productions is substantiated. It is shown that the most rational design solution to the problem of carbon monoxide pollution during the firing of electrode blanks is the use of aerated concrete blocks with a catalyst, which can be quickly and conveniently located directly on the carbon material of the “green” electrodes pouring in the subfloor space of the firing furnaces. Modified by oxides of Mn4+, Fe2+, Fe3+, Cu2+, Cr3+ -catalysts based on aerated concrete were obtained. It is shown that in an empty reactor in the temperature range 200–400 °С the degree of conversion of carbon monoxide in the absence of a catalyst is zero. It is established that on the investigated catalysts based on aerated concrete 100% oxidation of carbon monoxide is achieved at a temperature of 390 °C in the case of using a mixture of catalyst powders 30% CuO + 70% MnO2, 40% CuO + 60% MnO2, 50% Fe (FexCr1-x) 2O4 + 50% MnO2; 50% Fe3O4 + 50 % MnO2. It is determined that the addition of ferrite catalyst powder in aerated concrete in a mixture or without manganese dioxide does not critically affect the mechanical properties of the products.
Źródło:: Journal of Ecological Engineering; 2021, 22, 5; 104-113
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Changes in the Distribution of Air Pollutants (Carbon Monoxide) during the Control of the COVID-19 Pandemic in Jakarta, Surabaya, and Yogyakarta, Indonesia
Autorzy:: Suhardono, Sapta
Septiariva, Iva Yenis
Rachmawati, Siti
Matin, Hashfi Hawali Abdul
Qona'ah, Niswatul
Nirwana, Bayu
Suryawan, I. Wayan Koko
Sari, Mega Mutiara
Prayogo, Wisnu
Powiązania:: https://bibliotekanauki.pl/articles/24201721.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: COVID-19 pandemic
carbon monoxide
Sentinel-5P
LSSR
Opis:: The condition of the Coronavirus Disease 2019 (COVID-19) pandemic in 2020 characterizing DKI Jakarta, Surabaya, and Yogyakarta Provinces which have a high population density in 2019, necessitates implementing Large-Scale Social Restrictions (LSSR) to control or break the chain of the spread of COVID-19. The LSSR policy that limits community activities, be it business activities, transportation, and the industrial sector, will impact social activities and the environment due to the reduced intensity of community activities. Therefore, this study aimed to determine changes in the carbon monoxide (CO) levels in Jakarta, Surabaya and Yogyakarta during the pre-pandemic and during the pandemic. The method used is the tropospheric CO concentration extracted from the Sentinel-5P satellite data. The CO data were retrieved and calculated using Google Earth Engine. The COVID-19 pandemic reduced CO level by 19.7%, 14.9%, and 21%, respectively. The paired t-test shows no significant difference from before the COVID-19 pandemic, with a significance of 0.05. The highest pre-pandemic average and total CO concentration levels were 0.042 and 1.0198 mol/m2 in Yogyakarta, respectively, whereas the lowest during the pandemic were 0.02845 and 0.6828 mol/m2 in Surabaya. Overall, the three cities have a weak relationship between CO level and precipitation as well as temperatures and CO level.
Źródło:: Journal of Ecological Engineering; 2023, 24, 4; 151--162
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Assessment of the Effect of Oxygen and Carbon Dioxide Concentrations on Gas Evolution During Heat Treatment of Thermoanthracite Carbon Material
Autorzy:: Panov, Yevgen
Gomelia, Nikolai
Ivanenko, Olena
Vahin, Andrii
Leleka, Serhii
Powiązania:: https://bibliotekanauki.pl/articles/124362.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: carbon monoxide
flue gases
thermoanthracite pouring
graphitization
oxidation
pyrolysis
Opis:: The processes of the interaction of carbon material (thermoanthracite pouring) with a gas-air mixture in a heat chamber were studied while heating to 800–850°C. The influence of temperature, oxygen and carbon dioxide concentration on the formation efficiency of carbon monoxide, carbon dioxide, hydrogen and methane was determined. A pilot plant was created, which provided heating of the carbon material at the indicated temperatures and regulating the supply of air and carbon dioxide. It was found that a noticeable oxidation of the carbon material in the heat chamber in the presence of oxygen or carbon dioxide occurs at the temperatures above 500°C. Significant concentrations of carbon monoxide were formed at temperatures of 600–800°C. It was shown that when using gas mixtures with an oxygen content of 7–21% minimum concentrations of carbon monoxide are formed at an oxygen content of 14%. At temperatures above 500°C, the formation of hydrogen and methane in gas flows was noted. The methane yield increased with the decreasing oxygen content.
Źródło:: Journal of Ecological Engineering; 2020, 21, 2; 139-149
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of the Dispersion of Nitrogen Dioxide and Carbon Monoxide in the Indoor Café – Case Study
Autorzy:: Al-Sultan, Ammar A.
Jumaah, Ghufran F.
Al-Ani, Faris H.
Powiązania:: https://bibliotekanauki.pl/articles/124047.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: indoor air pollutants
nitrogen dioxide
carbon monoxide
global standard
smoker
Opis:: A popularity café in Baghdad city was chosen to measure the dispersion of nitrogen dioxide (NO₂) and carbon monoxide (CO) as examples of the Indoor Air Pollutants (IAPs) which are considered a significant environmental problem. The aims of this research were, firstly, to measure the variation of NO₂ and CO concentrations; secondly, to examine the effect of the seasonal variation of indoor temperature (°C) and relative humidity (%) on the dispersion of both NO₂ and CO and finally to compare the results with those of the global standards. The volume of café was about 360 m³ and the number of smokers was about 25-35 smoker/day. This work was divided into two parts where the first part includes the experimental work which comprised the measurement of NO₂ and CO by GIGs devices. It was lasted about five months commencing from November 2017 to March 2018 and the readings were taken during two intervals at partial time and during peak time. The second part includes the analysis of obtained results and compared the results of those of the global standards for the Indoor Air Quality suggested by WHO, EPA, and European criteria in order to achieve the goals of this work. The results from this research have highlighted a clear increase in the concentrations of NO₂ and CO along with the growing numbers of smokers. Furthermore, the concentrations of NO₂ and CO were close to some global standard values of short-term exposure at peak time.
Źródło:: Journal of Ecological Engineering; 2019, 20, 4; 256-261
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Development of a Catalyst for Flue Gas Purification from Carbon Monoxide of Multi-Chamber Furnaces for Baking Electrode Blanks
Autorzy:: Ivanenko, Olena
Trypolskyi, Andrii
Gomelya, Nikolai
Karvatskii, Anton
Vahin, Andrii
Didenko, Olga
Konovalova, Viktoria
Strizhak, Peter
Powiązania:: https://bibliotekanauki.pl/articles/1839547.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: carbon monoxide
flue gas
purification
catalyst
oxidation
conversion
multi-chamber furnace
Opis:: The catalysts based on natural zeolite-clinoptilolite of Sokyrnytsia deposit modified with oxides of Mn4+, Fe2+, Fe3+, Cu2+, Cr3+ were synthesized. It was determined that 100% conversion of carbon monoxide was achieved at a temperature of 390°C when using the copper-manganese-oxide catalyst (30% CuO + 70% MnO2). It was shown that although the use of the manganese-oxide catalyst provided 92.8% of CO conversion degree, this catalyst had the most advantages for application compared to the other studied solids. The structural parameters of the manganese-oxide catalyst were determined using XRD, SEM, and nitrogen adsorption. The composition of the main elements of the catalyst samples was determined by micro-X-ray spectral analysis. It was shown that using the catalyst containers in chambers heated by flue gases in the fire channels of a multi-chamber furnace for baking of electrode blanks can be one of the constructive solutions to the problem of flue gas purification from carbon monoxide. The environmental safety of the copper-manganese-oxide catalyst application for the treatment of the flue gases of electrode production is justified by obtaining a catalyst from spent sorbents for purification of the manganese-containing natural water and its non-toxicity in the case of burial or storage in landfills.
Źródło:: Journal of Ecological Engineering; 2021, 22, 1; 174-187
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The Emission of Carbon Monoxide and Nitrogen Oxides from Boilers Supplied by a Pellet under the Influence of Changes in the Air-Fuel Equivalence Ratio
Autorzy:: Ciupek, Bartosz
Judt, Wojciech
Urbaniak, Rafał
Kłosowiak, Robert
Powiązania:: https://bibliotekanauki.pl/articles/124554.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heating boiler
wood pellet
air-fuel equivalence ratio
carbon monoxide
CO
nitrogen oxides
NOx
Opis:: The aim of the experimental research was to determine the impact of changes in the air-fuel equivalence ratio during the combustion of wood pellet in the boiler on the CO and NO_x emissions. In order to realize the tests, 10 kW wood pellet boiler equipped with a dedicated wood pellet burner was employed. On the basis of the research, the relationship between the level of harmful substances emitted under the influence of changes in the air-fuel equivalence ratio was presented. The obtained results and conclusions based on them can be used to optimize the design of heating devices fed by wood pellets.
Źródło:: Journal of Ecological Engineering; 2019, 20, 10; 34-38
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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