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Wyszukujesz frazę "spectroscopic methods" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Spectroscopic methods in application to oil pollution detection in the sea
Autorzy:
Baszanowska, E.
Otremba, Z.
Powiązania:
https://bibliotekanauki.pl/articles/248141.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
marine transport
oil pollution
spectroscopic methods
fluorescence
time-resolved fluorescence
Opis:
The escalating maritime transport as well as offshore crude oil exploitation and pipeline transportation leads to the increase of feasibility of the discharge of petroleum substances to the sea environment events. Therefore, it is necessary to rapidly detect of oil pollution to minimize the extent of contamination in the seawater. The aim of this study is to discuss the assumptions of the optical methods using for detection of oil pollution in the seawater. We consider the different approaches of oil-in-water detection using spectral active and passive techniques with emphasis on fluorescence techniques. The intensive development of scientific apparatus and methods in light spectroscopy leads to build various airborne or underwater specialized devices (UV-, IR-scanners, fluorosensors), which allows to detect oil pollution in relatively large areas of the sea. The possibility of measurements of oil pollution in the seawater is particularly important for monitoring, especially in very difficult weather conditions and highly waved sea surface. Such possibilities should be given by devices for in-situ measurements based on time-resolved fluorescence. Such measurements allow obtaining the significant information about presence of oil in really short time. As we show in this study, the wide-range development of fluorescence techniques opens the diagnostic opportunity not only for detection of the oil-in-water content but also for identification the type of oil directly in seawater or even determination of the source of oil pollution.
Źródło:
Journal of KONES; 2012, 19, 1; 15-20
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring the extent the environmental pollution of the waters of the Diwani River some trace elements resulting from Diwani textile factory using some spectroscopic methods
Autorzy:
Al-Rufai, M. M.
Powiązania:
https://bibliotekanauki.pl/articles/372338.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
Iraq
Diwani River
trace elements
Diwani textile factory
spectroscopic methods
Irak
Rzeka Diwani
pierwiastki śladowe
fabryka tekstyliów
metody spektroskopowe
Opis:
The concentrations of some trace elements cobalt, nickel, lead, mercury cadmium, copper and Iron as well as pH value and the conductivity were determined in the samples of water which input and output (waste) from AL-Diwani textile factory and the effect of it on the AL-Diwani river water which is nearest from the factory through one month. The concentrations of above elements were determined in the samples by two methods. The flame Atomic absorption spectrophotometry and the spectrometry method which is satiable for each ion and making Analytical comparative between them from some analytical values like correlation coefficient(r), relative standard error Erel%, recovery value Re% and relative standard deviation RSD% for each ion. It is found that the first method is more accuracy for measuring the all elements concentrations except measuring of Iron. From results we show that the Lead element is more concentration among other elements which was the middle concentration was 3.3 ppm. The cobalt element is less concentration from other elements which was the middle of it concentration was 0.043 ppm in the waste water samples and other elements have concentration between them in the different samples. We show the increasing on the acidity and Conductivity for waste samples as comparative with the other samples which were pH between 6.5-7.2 and the Conductivity from the instrument directly in between 1210-1913 mS∙cm-1 and the measuring was making at the room temperature.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2016, 164 (44); 37-54
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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