Temat: ozone - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Efficacy of Dissolved Ozone against Staphylococcus aureus and Bacillus cereus Microorganism
Autorzy:: Fitria, Syarifa
Sidik, Muhammad Abu Bakar
Buntat, Zolkafle
Nawawi, Zainuddin
Jambak, Muhammad Irfan
Kamarudin, Nur Nabilah
Musa, Fatin Nabilah
Powiązania:: https://bibliotekanauki.pl/articles/125320.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: dissolved ozone
bacteria
disinfection
Opis:: Ozone is a robust antimicrobial agent with numerous potential applications in the industry. Ozone, in either gaseous or aqueous phases is effective against the majority of microorganisms. Relatively low concentrations of ozone and short contact time are sufficient to inactivate bacteria and microorganism. This project investigated the efficacy of dissolved ozone against food-related microorganism. The ozone system was evaluated using the microbial effects on Staphylococcus aureus, and Bacillus cereus and its clinical efficacy against ORP level for disinfection was determined. The results showed that 100% of S. aureus and B. cereus were eliminated by the dissolved ozone in tap water. In conclusion, the dissolved ozone has great efficacy, lower cost and shorter disinfection cycle. Thus, this low temperature, ozone-based disinfection is a green technique and is regarded as one of the most promising disinfection methods.
Źródło:: Journal of Ecological Engineering; 2019, 20, 11; 76-81
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of Ozone Aeration on Toxic Metal Content and Oxygen Activity in Green Waste Compost
Autorzy:: Gliniak, M.
Grabowski, Ł
Wołosiewicz-Głąb, M.
Polek, D.
Powiązania:: https://bibliotekanauki.pl/articles/124489.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: compost
ozone
toxic metals
Opis:: This paper presents the results of work on the reduction of toxic metal content while decreasing its oxygen activity. During the study the effects of different doses of ozone in the air used for aeration of the stabilized compost in the first post-thermophilic phase were analyzed. The results showed the possibility of reducing the concentrations of toxic metals and decrease the activity of oxygen by up to 30%, compared to traditional stabilized compost aeration system without using ozone.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 90-94
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Atmospheric Air Pollution with Tropospheric Ozone on the Example of Selected Rural Villages of the Lubelskie Region
Autorzy:: Zuśka, Zbigniew
Baranowska, Alicja
Skowera, Barbara
Powiązania:: https://bibliotekanauki.pl/articles/123989.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: tropospheric ozone
air pollution
acceptable level
Opis:: In excessive concentrations, the tropospheric ozone (the so-called trioxygen O₃) constitutes a serious threat to the ecosystems of our planet. It is a threat to the health and life of people. In plants, it contributes to disruption of the most important biochemical processes. The purpose of this study was to assess atmospheric air pollution with tropospheric ozone in selected rural villages of the Lubelskie region in the years 2015–2017. Assessment of air quality in the Lubelskie region in terms of the content of tropospheric ozone, which is significant for the protection of plants and human health, was carried out in accordance with the Regulation of the Minister of Environment of 24 August 2012 on the levels of certain substances in the air, as well as more restrictive guidelines of the World Health Organization. The research used the hourly values of automatic measurements of the tropospheric ozone immission in the years 2015–2017. The data originated from three measurement stations, which function as part of the Air Quality Monitoring System, in three rural communes located in the north-western, central and southern part of the Lubelskie region. As a result of implemented research, no tropospheric ozone concentrations exceeding the threshold values, at which the public should be informed about the risk of exceeding the alarm level, were noted. The highest mean tropospheric ozone immission was recorded during the calendar summer and calendar spring, while the lowest was recorded during the calendar winter and autumn. In terms of human health protection, the largest exceedances of the maximum mean 8-hour value of tropospheric ozone were recorded during the calendar summer at Florianka station, which was located at the highest position (270 m above sea level) in relation to other measurement stations covered by this study. In terms of plant protection, the mean tropospheric ozone concentration, expressed with the use of AOT40, did not exceed the applicable target level (18 000 μg∙m^-3∙h) at any of the measurement stations. The highest mean value of AOT40 was recorded at the Florianka meteorological station (14 653.9 μg∙m^-3∙h), while the lowest was recorded at the Jarczew station (7 486.2 μg∙m^-3∙h).
Źródło:: Journal of Ecological Engineering; 2019, 20, 10; 233-240
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Color Removal from Groundwater by Coagulation and Oxidation Processes
Autorzy:: Leszczyński, Jacek
Powiązania:: https://bibliotekanauki.pl/articles/124931.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: groundwater treatment
color removal
coagulation
ozone
Opis:: The paper concerns the experimental research related to the removal of color and permanganate index (COD_Mn) in the presence of iron and manganese from the underground water by means of coagulation and ozonation. The tests were carried out on a laboratory and technical scale in the real underground water treatment system. Ozone, as a strong oxidizing agent, was used to reduce the color intensity and to convert the iron Fe²⁺ and manganese ions Mn²⁺ to Fe(OH) ₃ and MnO₂, respectively. In order to optimally remove the color to a value below 15 mg/L, the ozone dose of 3 mg/L was sufficient, which also ensured the proper removal of iron and manganese, by 94% and 83%, respectively. However, ozonation conducted under these conditions, did not provide sufficient removal of organic compounds expressed as COD_Mn below the assumed value of 3 mg/L. The effect of aluminum sulfate and polyaluminum chloride (PAC) was also studied, as a result of which it was found that polyaluminum chloride proved to be more effective reagent. Under the technical conditions of water purification at a dose of 16 mg/L coagulant, the efficiency of color removal was 65.2% and COD_Mn – 50.8%, which ensured that the values of the tested indicators in the purified water were maintained below the permissible level.
Źródło:: Journal of Ecological Engineering; 2019, 20, 9; 138-144
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The Effect of Ozonation, Coagulation and Adsorption on Natural Organic Matter Removal
Autorzy:: Dąbrowska, Lidia
Powiązania:: https://bibliotekanauki.pl/articles/1955547.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: ozone
activated carbon
polyaluminium chloride
trihalomethane precursor
Opis:: For the treatment of surface water, the coagulation process was used with highly alkaline polyaluminium chloride PAX-XL19F and coagulation supported by ozonation and adsorption on powdered activated carbon CWZ-30 for reducing the level of surface water pollution with organic substances. In addition to the typical indices used to assess the content of organic compounds (total organic carbon TOC, oxidisability OXI, ultraviolet absorbance UV254), the study also evaluated colour, turbidity, and the potential of trihalomethanes formation THM-PF. Reduction in the content of TOC in water after coagulation ranged from 22 to 24%, OXI in the range of 34-36%, and UV254 absorbance from 52-55%. The turbidity and colour of the water was reduced by 70-73% and 56-60%, respectively. The use of preliminary ozonation and activated carbon-assisted coagulation increased the efficiency of water treatment. Changes in the values of TOC, OXI, UV254 absorbance, turbidity and colour were 28-33%, 45-46%, 69-73%, 72-79% and 89-100%, respectively. In the water purified by coagulation and then chlorinated, THM-PF was 37-38% lower than in untreated surface water. The use of additional pre-ozonation and activated carbon during coagulation increased the reduction of THM-PF by 9-12%.
Źródło:: Journal of Ecological Engineering; 2021, 22, 9; 216-223
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Application of the Ozonation Process for Shaping the Energy Properties of the Surface Layer of Polymer Construction Materials
Autorzy:: Kłonica, Mariusz
Powiązania:: https://bibliotekanauki.pl/articles/2027827.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: surface layer
ozone
polymer material
surface free energy
Opis:: The properties of the surface layer of construction materials are very important for making adhesive bonds. The article presents the test results for surface free energy in PA6 polyamide subjected to surface layer modification using the ozonation process. To develop the surface geometrically, the samples were subjected to mechanical processing. The comparison of results demonstrated that ozonation is an efficient and eco-friendly method of modifying the surface layer. The article also presents the comparison results for measurements of selected surface roughness parameters.
Źródło:: Journal of Ecological Engineering; 2022, 23, 2; 212-219
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Assessment of Ambient Air Quality of Mosul City/Iraq Via Air Quality Index
Autorzy:: Shihab, Abdulmuhsin S.
Powiązania:: https://bibliotekanauki.pl/articles/2027886.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: AQI
Mosul city
air quality
ozone
CO
SO₂
NO₂
PM₁₀
Opis:: The research aimed to assess air quality in Mosul city (Iraq) using air quality index (AQI). The data were collected at six monitoring sites using two stations, one fixed and the other is mobile type. The concentrations of $CO$, $NO_2$, $O_3$, $SO_2$ and $PM_{10}$ were measured. The daily AQI were calculated for each site and classified to AQI categories according to USEPA approach. The dominant AQI category at the public library site fluctuated between "Moderate" to "Unhealthy for Sensitive Groups". AQI undergoes seasonal variation with lower value at March. The results showed that PM10 is the main contributor for AQI determination in Mosul city with 93.8%. $CO$ has no contribution to Mosul AQI. $SO_2$, $O_3$ and $NO_2$ have little contribution to Mosul AQI with 0.8%, 2.7% and 2.7% respectively. The annual mean of AQI in the public library site/ Mosul city is 96 in the category "Moderate". The worst site was Mosul municipality (old location) with a dominant category "Unhealthy for Sensitive Groups".
Źródło:: Journal of Ecological Engineering; 2021, 22, 10; 241-250
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Integrated Ozone and Anoxic-Aerobic Activated Sludge Reactor for Endek (Balinese Textile) Wastewater Treatment
Autorzy:: Suryawan, I. Wayan Koko
Siregar, Mia Juliana
Prajati, Gita
Afifah, Anshah Silmi
Powiązania:: https://bibliotekanauki.pl/articles/124354.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: low-biodegradable wastewater
ozone oxidation process
anoxic-aerobic activated sludge
Opis:: The endek industry produces low-biodegradable wastewater, which is very difficult to treat using the biological methods. For this reason, this study was aimed at improving the quality of wastewater for endek textile wastewater using the combination of ozone oxidation process as pretreatment and anoxic-aerobic activated sludge. The ozone reactor volume amounted to 3L and the applied ozone dose equaled 0.05 mg/minute. The BOD/COD of endek wastewater increased to 0.38 after ozone treatment and the application of anoxic-aerobic activated sludge treatment. The anoxic-aerobic experiments were conducted in batch process and consisted of activated sludge. Conventional anoxic-aerobic treatment can reach color and COD removal of 30% and 32%, respectively, without pre-treatment. The ozone pretreatment can increase color and COD removal up to 76.6% and 86.9%, respectively. On the basis of the effluent standards of textile wastewater quality, COD, BOD₅, and total ammonia (NH₃-N) parameters have met the quality standards.
Źródło:: Journal of Ecological Engineering; 2019, 20, 7; 169-175
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Investigation of the Efficiency of the Ozonator in the Process of Water Purification Based on the Corona Discharge
Autorzy:: Abdykadyrov, Askar
Marxuly, Sunggat
Mamadiyarov, Maxat
Smailov, Nunzhigit
Zhunusov, Kanat
Kuttybaeva, Ainur
Amanzholov, Arnay
Orazbekov, Asset
Powiązania:: https://bibliotekanauki.pl/articles/2202354.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: corona discharge
ozonator
sewage
electric current
high voltage
ozonometer
ozone concentration
Opis:: In this research paper, the problem of studying the effectiveness of ozone in the process of water treatment was considered. In the course of the scientific work, a review of domestic and foreign literature was conducted; its advantages and disadvantages were considered. The research paper presented the theoretical and practical methods of water purification with ozone. The main factors influencing the efficiency of the technology in the process of water purification were also considered. It was established that as a technological method of water purification, the efficiency of the ozonation process includes not only the cost of electricity, but also the efficiency of its mixing, ozone dissolution in treated water. In addition, special attention is paid to the final stage of mixing the ozone-air mixture with treated water. From the results obtained, it can be seen that after primary ozonation, the concentrations of chromium, oxidation of permanganate, iron, petroleum products, metal ions and other pollutants significantly decreased. During further water purification, organic and inorganic pollutants are removed in the future (completely or up to the requirements of the standard). However, calcium, magnesium, sulfates, chlorides, pH value, alkalinity and hardness practically do not change. The water quality after primary ozonation according to bacteriological indicators met the requirements of the standard.
Źródło:: Journal of Ecological Engineering; 2023, 24, 2; 140--151
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Quantitative Dynamics of Chosen Bacteria Phylla in Wastewater Treatment Plants Excess Sludge After Ozone Treatment
Autorzy:: Jurczyk, Łukasz
Koc-Jurczyk, Justyna
Balawejder, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/123123.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: ozone treatment
excessive sludge
Real-Time qPCR
sludge microbial community
microbial quantitative dynamics
Opis:: Among the waste produced by municipal wastewater treatment plants, the largest technological problem is caused by the excessive sludge, the management of which consumes almost half of the costs of the entire installation. Regardless of the final disposal route, which may be, for example, reclamation of degraded areas, the the sludge derived from a wastewater treatment plant should be firstly subjected to a series of processes aimed at: reducing its volume, improving selected physical properties, recovering energy, rot preventing (stabilization) or eliminating epidemiological threats (hygenizing). These goals could be implemented using commonly known technologies, including: dewatering, liming, thermoconditioning, methanogenesis or composting. One of the alternative solutions is the use of ozonation of raw excess sludge, which, in principle, may lead to the simultaneous resolution of several above-mentioned problems, such as: drainage properties improvement, increase the bioavailability of organic matter for biogas production, as well as the removal of undesirable microorganisms. Confirmation of the hygenizing effects usually requires arduous microbiological methods; therefore, the fast and reliable tools of molecular biology could prove their usefulness in this case. In this study, the possibility of determining the dynamics of selected groups of microorganisms (including changes in total bacteria amount, Proteobacteria, Bacteroidetes, Firmicutes and Actinobacteria) after sewage sludge ozonation, by using the semi-quantitative RealTime polymerase chain reaction (qPCR), wasinvestigated.
Źródło:: Journal of Ecological Engineering; 2019, 20, 3; 204-213
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Związki odpowiedzialne za zanieczyszczenie powietrza
The compounds responsible for air pollution
Autorzy:: Kostrz, M.
Satora, P.
Powiązania:: https://bibliotekanauki.pl/articles/401714.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: jakość powietrza
pył zawieszony
ozon
WWO
dwutlenek azotu
tlenek siarki
tlenek węgla
metale ciężkie
air quality
particulate matter
ozone
PAH
nitrogen dioxide
sulfur oxide
carbon oxide
toxic metals
Opis:: Jakość powietrza w Polsce stanowi poważny problem dla społeczeństwa oraz środowiska. Według badań WHO Polska znajduje się na 14. miejscu w Europie jako kraj najbardziej zanieczyszczony pyłem zawieszonym PM10. Równie niebezpieczne dla zdrowia są ozon, WWO, dwutlenek azotu, tlenek siarki, tlenek węgla oraz metale ciężkie. Długotrwałe narażenie na podwyższone stężenia ozonu oraz dwutlenku azotu może doprowadzić do nieodwracalnych, rozległych zmian w płucach, obrzęku płuc, a nawet śmierci. Głównym przedstawicielem WWA jest benzo(a)piren (BaP), który jest kumulowany w organizmie i został określony przez IARC jako główny czynnik kancerogenny. Wysokie stężenie tlenku siarki w powietrzu może doprowadzić do uszkodzenia górnych dróg oddechowych, ponadto tlenki siarki przyczyniają się również do występowania kwaśnych deszczy oraz są składnikami smogu typu londyńskiego. Metale ciężkie będące zanieczyszczeniami powietrza, z uwagi na zdolność kumulowania się w organizmie, są jednym z najcięższych zagrożeń dla zdrowia ludzi.
Air quality in Poland poses a serious threat for boththe society and the environment. According to the WHO research Poland is located on the 14th place as a country most contaminated by particulate matter (PM10). Equally health-threatening substances are ozone, PAH, nitrogen dioxide, sulfur oxide, carbon oxide and heavy metals. Long-lasting exposure to high concentrations of ozone and nitrogen dioxide may lead to many irreversible changes in lungs, pulmonary oedema and even death. The main PAH, which cumulates in the organism is benzopyrene. This substance has been described by the IARC as a the most cancerogenic factor. High concentration of sulfur oxide in the air may cause severe damage of upper respiratory tract, sulfur oxide contributes greatly also to the appearance of acid rain and is an ingredient of a London type smog. Heavy metals polluting the air are one of the most severe health threat for people, due to the ability to cumulate in the organism.
Źródło:: Inżynieria Ekologiczna; 2017, 18, 6; 89-95
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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