排序方式: 共有8条查询结果,搜索用时 15 毫秒
1
1.
Ewelina Grabias Agnieszka Gładysz-Płaska Anna Książek Marek Majdan 《Environmental Chemistry Letters》2014,12(2):297-301
Uranium is a very toxic and radioactive element. Removal of uranium from wastewaters requires remediation technologies. Actual methods are costly and ineffective when uranium concentration is very low. Little is known about the enhancement of sorption of uranyl ions by phosphate ions on aluminosilicates. Here, we studied sorption of uranyl acetate on red clay in the presence of phosphates. The concentration of U(VI) ranged 0.0001–0.001 mol/L, whereas the concentration of PO4 3? was constant at 0.0001 mol/L. We designed a new method for the analysis of ternary surface complexes. We observed for the first time a remarkable improvement of U(VI) sorption on red clay under the influence of phosphates. We also found that at least two different ternary surface complexes U(VI)–phosphate–clay are formed in the sorbent phase. The complexation of UO2 2+ cations by phosphate ligands in the sorbent phase was confirmed by the X-ray photoelectron spectra of U 4f electrons. 相似文献
2.
Ewelina Wawryk-Gawda Michał K. Zarobkiewicz Katarzyna Chłapek Patrycja Chylińska-Wrzos Barbara Jodłowska-Jędrych 《毒物与环境化学》2019,101(7-8):404-419
AbstractThe use of electronic cigarettes increases as a supposedly healthier form of nicotine consumption, but safety of vaping remains uncertain. In this study, we assessed whether the use of electronic cigarettes increases the risk of infertility in male rats. Malformations of sperm morphology were more frequent in nicotine-exposed groups than in the control group. Vacuolization of seminiferous epithelium, reduction of spermatogenesis, increased apoptosis of spermatogonia and spermatocytes, and acceleration of degeneration of testes were observed. The male reproductive organs are slightly less affected by vaping than by smoking. Nevertheless, in consequence both may lead to the reduction of fertility. 相似文献
3.
Food and Environmental Virology - Pig’s blood and liver are valuable edible slaughter by-products which are also the major ingredients of offal-derived foodstuffs. The aim of the study was an... 相似文献
4.
Ewelina Bigoraj Ewa Kwit Marta Chrobocińska Artur Rzeżutka 《Food and environmental virology》2014,6(3):207-212
The aim of the study was to define the occurrence of human noroviruses of genogroup I and II (NoV GI and NoV GII) and hepatitis A virus (HAV) in the Baltic Sea mussels. The shellfish samples were taken at the sampling sites located on the Polish coast. In total, 120 shellfish were tested as pooled samples using RT-PCR and hybridisation with virus specific probes. NoV GI was detected in 22 (18.3 %), NoV GII in 28 (23.3 %), and HAV in 9 (7.5 %) of the shellfish. The nucleotide sequence analysis of the detected NoV GII strains showed a 97.3–99.3 % similarity to GII.4 virus strain. This is the first report describing the NoV and HAV occurrence in wild Baltic mussels and their possible role as bioindicators of seawater contamination with human enteric viruses. 相似文献
5.
Jaszczur Marek Teneta Janusz Styszko Katarzyna Hassan Qusay Burzyńska Paulina Marcinek Ewelina Łopian Natalia 《Environmental science and pollution research international》2019,26(9):8402-8417
Environmental Science and Pollution Research - The maximisation of the efficiency of the photovoltaic system is crucial in order to increase the competitiveness of this technology. Unfortunately,... 相似文献
6.
Styszko Katarzyna Jaszczur Marek Teneta Janusz Hassan Qusay Burzyńska Paulina Marcinek Ewelina Łopian Natalia Samek Lucyna 《Environmental science and pollution research international》2019,26(9):8393-8401
Environmental Science and Pollution Research - Solid particles impair the performance of the photovoltaic (PV) modules. This results in power losses which lower the efficiency of the system as well... 相似文献
7.
Environment Systems and Decisions - Environmental protection is of vital importance and needs to be considered in the context of business strategies, including companies’ reporting decisions.... 相似文献
8.
Ewelina Mroczek Piotr Konieczny Andrzej Lewicki Agnieszka Wa?kiewicz Jacek Dach 《环境科学学报(英文版)》2016,28(7):108-114
Polyacrylamide(PAM) used in sludge dewatering exists widely in high-solid anaerobic digestion. Acrylamide is registered in the list of chemicals demonstrating toxic, carcinogenic and mutagenic properties. Therefore, it is reasonable to ask about the mobility of such residual substances in the environment. The study was carried out to assess the impact of the mesophilic(39 ± 1°C) and thermophilic(54 ± 1°C) fermentation process on the level of acrylamide monomer(AMD) content in the dairy sludge. The material was analysed using high-performance liquid chromatography(HPLC) for quantification of AMD. The results indicate that the process of methane fermentation continues regardless of the temperature effects on the degradation of AMD in dairy sludge. The degree of reduction of acrylamide monomer for thermophilic fermentation is 100%, while for mesophilic fermentation it is91%. In practice, this means that biogas technology eliminates the risk of AMD migration to plant tissue. Moreover, it should be stressed that 90% of cumulative biogas and methane production was reached one week earlier under thermophilic conditions — the dynamics of the methanisation process were over 20% faster. 相似文献
1