排序方式: 共有29条查询结果,搜索用时 15 毫秒
1.
Matichenkov Vladimir V. Bocharnikova Elena A. Pakhnenko Ekaterina P. Khomiakov Dmitry M. 《Environmental science and pollution research international》2017,24(31):24311-24317
Environmental Science and Pollution Research - The poor adsorption capacity of sandy soils is one of the primary reasons of a high level of phosphorus (P) leaching. Silicon (Si)-rich soil... 相似文献
2.
Pavlova Ekaterina Pashkunova-Martic Irena Schaier Martin Petrova Emilia Gluhcheva Yordanka Dorkov Peter Helbich Thomas H. Keppler Bernhard Koellensperger Gunda Ivanova Juliana 《Environmental science and pollution research international》2021,28(6):6784-6795
Environmental Science and Pollution Research - In this study, we compare the effects of deferiprone (Def) and tetraethylammonium salt of salinomycinic acid (Sal) on lead (Pb)-induced toxicity in... 相似文献
3.
Perfluorooctane sulfonate(PFOS) has attracted increasing concern in recent years due to its world-wide distribution, persistence, bioaccumulation and potential toxicity. The influence of sorbent properties on the adsorptive elimination of PFOS from wastewater by activated carbons, polymer adsorbents and anion exchange resins was investigated with regard to their isotherms and kinetics. The batch and column tests were combined with physicochemical characterization methods, e.g., N_2 physisorption, mercury porosimetry, infrared spectroscopy, differential scanning calorimetry, titrations, as well as modeling. Sorption kinetics was successfully modelled applying the linear driving force(LDF) approach for surface diffusion after introducing a load dependency of the mass transfer coefficient βs.The big difference in the initial mass transfer coefficient βs,0, when non-functionalized adsorbents and ion-exchange resins are compared, suggests that the presence of functional groups impedes the intraparticle mass transport. The more functional groups a resin possesses and the longer the alkyl moieties are the bigger is the decrease in sorption rate.But the selectivity for PFOS sorption is increasing when the character of the functional groups becomes more hydrophobic. Accordingly, ion exchange and hydrophobic interaction were found to be involved in the sorption processes on resins, while PFOS is only physisorptively bound to activated carbons and polymer adsorbents. In agreement with the different adsorption mechanisms, resins possess higher total sorption capacities than adsorbents. Hence, the latter ones are rendered more effective in PFOS elimination at concentrations in the low μg/L range, due to a less pronounced convex curvature of the sorption isotherm in this concentration range. 相似文献
4.
Ricardo C. Grøndahl-Rosado Ekaterina Yarovitsyna Elin Trettenes Mette Myrmel Lucy J. Robertson 《Food and environmental virology》2014,6(4):232-245
Enteric viruses transmitted via the faecal-oral route occur in high concentrations in wastewater and may contaminate drinking water sources and cause disease. In order to quantify enteric adenovirus and norovirus genotypes I and II (GI and GII) impacting a drinking source in Norway, samples of surface water (52), wastewater inlet (64) and outlet (59) were collected between January 2011 and April 2012. Samples were concentrated in two steps, using an electropositive disc filter and polyethylene glycol precipitation, followed by nucleic acid extraction and analysis by quantitative polymerase chain reaction. Virus was detected in 47/52 (90.4 %) of surface water, 59/64 (92 %) of wastewater inlet and 55/59 (93 %) of wastewater outlet samples. Norovirus GI occurred in the highest concentrations in surface water (2.51e + 04) and adenovirus in wastewater (2.15e + 07). While adenovirus was the most frequently detected in all matrices, norovirus GI was more frequently detected in surface water and norovirus GII in wastewater. This study is the first in Norway to monitor both sewage and a drinking water source in parallel, and confirms the year-round presence of norovirus and adenovirus in a Norwegian drinking water source. 相似文献
5.
Huber Florian Korotenko Ekaterina Šyc Michal Fellner Johann 《Journal of Material Cycles and Waste Management》2021,23(1):394-401
Journal of Material Cycles and Waste Management - Bottom ash is the main solid residue from municipal solid waste incineration (MSWI). The material can be utilised in the construction industry but... 相似文献
6.
Ekaterina Nikitina 《Journal of Environmental Planning and Management》2019,62(5):779-796
When ecosystem services value estimates are applied in the economic assessment of environmental policies, high accuracy of these estimates is required. One of the directions in the scientific discussion on biases in stated preference (SP) valuation surveys builds on dual-process theories of judgment. The paper contributes to this literature by presenting an experiment where two types of judgment were induced via separate versus joint valuation of environmental goods. The results demonstrated that policy relevance of environmental issues, e.g. the need for conservation measures increases emotional response, causing a larger bias in the separate design as it involves ‘valuation by feeling.’ This finding suggests that the context of a specific policy, which is often the reason for conducting SP surveys, influences the answers, thereby making the results less reliable for use in cost–benefit analysis. 相似文献
7.
Fillimonova Elena Kharitonova Natalia Baranovskaya Ekaterina Maslov Alexey Aseeva Anna 《Environmental geochemistry and health》2022,44(7):2281-2299
Environmental Geochemistry and Health - The Caucasian mineral water (CMW) region is a unique area where mineral waters differ by their chemical composition and balneological properties. The... 相似文献
8.
Volova Tatiana G. Kurachenko Natalya L. Bopp Valentina L. Thomas Sabu Demidenko Aleksey V. Kiselev Evgeniy G. Baranovsky Sergey V. Sukovatyi Aleksey G. Zhila Natalia O. Shishatskaya Ekaterina I. 《Environmental science and pollution research international》2022,29(14):20249-20264
Environmental Science and Pollution Research - The efficacy of slow-release formulations of tribenuron-methyl (TBM) embedded in the matrix of degradable poly(3-hydroxybutyrate) blended with birch... 相似文献
9.
Natalia Zhila Anastasiya Murueva Anna Shershneva Ekaterina Shishatskaya Tatiana Volova 《Journal of environmental science and health. Part. B》2017,52(10):729-735
The present study reports the herbicidal activity of metribuzin and tribenuron-methyl embedded in the degradable matrix of natural poly-3-hydroxybutyrate [P(3HB)/MET and P(3HB)/TBM]. The developed formulations were constructed as films and microgranules, which were tested against the weeds such as white sweet clover Melilotus albus and lamb's quarters Chenopodium album in the presence of soft spring wheat (Triticum aestivum, cv. Altaiskaya 70) as the subject crop for investigation. The activity was measured in laboratory scale experiments by determining the density and weight of the vegetative organs of weeds. The study was also aimed at testing the effect of the experimental formulation on the growth of wheat crop as dependent on the method of herbicide delivery. The experimental MET and TBM formulations showed pronounced herbicidal activity against the weed species used in the study. The effectiveness of the experimental formulations in inhibiting weed growth was comparable to and, sometimes, higher than that of the commercial formulations (positive control). The amount of the biomass of the wheat treated with the experimental herbicide formulations was significantly greater than that of the wheat treated with commercial formulations. 相似文献
10.
Solyanikova IP Konovalova EI El-Registan GI Golovleva LA 《Journal of environmental science and health. Part. B》2010,45(8):810-818
The aim of the present work was to investigate the influence of alkylhydroxybenzenes (AHBs) and tyrosol, which belong to cell differentiation factors d(1) group of autoregulators on properties of biodegradation enzymes, catechol 1,2-dioxygenase (Cat 1,2-DO) and methylcatechol 1,2-dioxygenase (MCat 1,2-DO) of Rhodococcus opacus 6a. AHBs were found to have a greater effect on MCat 1,2-DO than on Cat 1,2-DO. It was expressed by more pronounced changes in the activity of MCat 1,2-DO with unsubstituted catechol at different AHB concentrations and by increasing thermostability of MCat 1,2-DO compared to Cat 1,2-DO under the protective action of AHBs. The compound C(7)-AHB shifted the maximum of dioxygenase activities towards higher temperatures and increased their operation optimum. AHBs changed the specificity constant of dioxygenases by decreasing/increasing the K(m)/V(max) value. For example, the increase in the V(max) value of 3,6-dichlorocatechol oxidation by Cat 1,2-DO in the presence of C(7)-AHB was 300-fold higher compared to the same reaction without AHB. The influence of cell differentiation factors on the properties of dimeric enzymes has been shown for the first time. It gives an idea of how the specificity of enzymes can be changed in vivo when strains contact new substrates. The work has shown the possibility of modification of the properties of dimeric enzymes towards the extension of enzyme activity with difficulty converted substrates or in more extreme conditions, which may be important for biotechnological processes. 相似文献