Temat: uv filters - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evaluation of Degradation Efficiency of 2’-Ethylhexyl 4-(Dimethylamino)Benzoate under the Influence of Oxidizing Agents
Autorzy:: Studziński, W.
Gackowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/123792.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: UV filters
OD-PABA
sewage
environment pollution
degradation
Opis:: The aim of the studies was to evaluate the effect of oxidizing agents on the degradation of 2-ethylhexyl 4-(dimethylamino)benzoate (ODPABA). The oxidation reaction was carried out in the presence of oxidizing agents used for disinfection of water and treatment of sewage containing organic pollutants. Oxidants, such as: sodium hypochlorite, hydrogen peroxide or ozone with UV radiation were applied. ODPABA degradation and analysis of products were performed using a gas chromatograph coupled with mass spectrometry detector. The use of sodium hypochlorite and UV radiation proved to be the most effective solutions. As a result, halogenoorganic products are formed. It is likely that the resulting by-products can be more toxic than the initial substrate. In the case of ozone and hydrogen peroxide, it was shown that these agents are characterized by weaker oxidative activity and therefore, fewer metabolites are formed.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 236-241
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Presence of Compounds from the Personal Care Products Group in Swimming Pool Water
Autorzy:: Lempart, A.
Kudlek, E.
Lempart, M.
Dudziak, M
Powiązania:: https://bibliotekanauki.pl/articles/123464.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: swimming pools
personal care products
cosmetics
micropollutants
parabens
UV filters
Opis:: The global production of several thousands of Personal Care Products (PCPs) every year makes the release of PCPs to the environment an unavoidable by-product of a modernized lifestyle. Multiple studies have detected PCPs worldwide in various aquatic environments, including swimming pools. In the presented work, the concentrations of three selected compounds from the PCPs group were examined in 15 swimming pools with different functions. The aim of the study was to show the influence of various factors on the concentration levels of selected micropollutants. Two UV filters: BP-3 (oxybenzone), BP-8 (dioxybenzone) and one antioxidant BTH (dibutylhydroxytoluene) were selected for the research. The extraction of micropollutants from the swimming pool water matrix was carried out by Solid Phase Extraction (SPE). The extracts were analyzed using a gas chromatograph (GC) coupled to the mass detector (MS). BHT was the most common compound. Its concentration ranged from 3.8 ng/L to 5.5 ng/L. The most rarely occurring compound was BP-3. The concentration of this compound varied the most, from 18.5 ng/L to 1178.6 ng/L. BP-8 was present in 10 from 15 tested pools at the concentration level of 49.9–226.9 ng/L. The frequency of occurrence characterizing different micropollutants from PCPs group was higher in recreational pools than in sports pools. It was also observed that the applied water treatment technology may affect the presence of Personal Care Products in the swimming pool water. No impact of basic water quality parameters on the levels of tested pharmaceuticals has been shown in this research.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 29-37
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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