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221.
Trace metal speciation and fluxes within a major French wastewater treatment plant: impact of the successive treatments stages 总被引:1,自引:0,他引:1
Buzier R Tusseau-Vuillemin MH dit Meriadec CM Rousselot O Mouchel JM 《Chemosphere》2006,65(11):2419-2426
Seven metals (Cd, Co, Cr, Cu, Fe, Ni and Pb) were monitored at the Seine-Aval wastewater treatment plant during 6 sampling campaigns in April 2004. Particulate and dissolved metals have been measured in 24 h composite samples at each treatment stage (primary settling, secondary activated sludge and tertiary flocculation by FeCl3). In addition, the diffusive gradient in thin film technique (DGT) was used to determine the dissolved inert and labile metal fraction. Although all treatment stages were able to decrease particulate metals concentrations in wastewater, most dissolved metals concentrations were mainly affected during primary settling. This unexpected result was attributed to tertiary sludge filtrate recirculation. Metals added via the FeCl3 reagent at the tertiary treatment were shown to lower the overall Cr removal from wastewater and to enrich Ni in effluents. The plant operating conditions (recirculation and reagent addition) appear therefore as important as treatment processes for the metals removal. Total metal fluxes were highly decreased by the whole treatment plant for Cd, Cr, Cu and Pb and to a lesser extend for Co and Ni. However, the labile metal fluxes were poorly decreased for Cu (18%), not significantly decreased for Ni and increased for Fe. The labile fraction of Cd, Co and Cr was not detectable at any stage of the plant. Discharged labile fluxes, at least for Ni, were potentially significant compared to the labile metal fluxes in the river measured downstream the plant. Treated urban wastewater discharges should be carefully considered as a possible source of bioavailable trace metals. 相似文献
222.
Dione Cheikh Tidiane Ndiaye Momar Delhomme Olivier Diebakate Cheikhna Ndiaye Birame Diagne Ibrahima Cisse Dame Hane Maoudo Dione Mame Mor Diouf Sitor Diop Abdoulaye Millet Maurice 《Environmental science and pollution research international》2023,30(2):2374-2391
Environmental Science and Pollution Research - Environmental pollution is one of the major problems facing human health, ecosystems, and biodiversity. This is particularly the case for water... 相似文献
223.
We compared the fatty acid composition of leaves taken from poplars on a metal-contaminated landfill, and on the uncontaminated roadside bordering this site. For the first time, it is shown that the percentage of linolenic acid, which is mainly associated with thylakoid lipids, was significantly lower in tree species within the landfill than within the control area. A correlation study was carried out to investigate relationships between the C18:3/(C18:0 + C18:1 + C18:2) fatty acid ratios and the metal contents in soils and leaves. Lead and chromium leaf contents were significantly negatively correlated to this fatty acid ratio. The impact of each of these metals remains difficult to evaluate, but chromium in leaf likely plays a major role in toxicity. In addition, the decrease in the C18:3/(C18:0 + C18:1 + C18:2) fatty acid ratio occurred at low leaf metal content, and therefore it is shown that this ratio can be used as an early indicator of the effect of metals. 相似文献
224.
225.
Lagarde Adrien Doyen Luc Claudet Joachim Thebaud Olivier 《Environmental Modeling and Assessment》2022,27(5):771-789
Environmental Modeling & Assessment - This paper investigates the ecological-economic sustainability of coral reef socio-ecological systems under fishing and environmental pressures. To achieve... 相似文献
226.
Marc-Antoine Sanchez Simon-Pierre Corcostégui Charles-Arnaud De Broucker Olivier Cabre Stéphanie Watier-Grillot Sylvie Perelle Katia Ambert-Balay Vincent Pommier de Santi 《Food and environmental virology》2017,9(2):234-237
In February 2016, an outbreak of gastroenteritis occurred in a French military unit located in Poitiers, France. Attack rate was of 34% (103/300). A case–control study identified association between illness and cake consumption. Stool samples were tested positive for Norovirus GII.17 for one patient and one post-symptomatic food worker (FW). The FW presented vomiting one day before cake preparation. The NoV strain was probably spread through food worker hand contact. Prevention of Norovirus foodborne outbreaks implies new guidelines for FWs management in France and Europe. 相似文献
227.
Flurina Schneider Mariano Bonriposi Olivier Graefe Karl Herweg Christine Homewood Matthias Huss 《Journal of Environmental Planning and Management》2015,58(9):1577-1600
We present and test a conceptual and methodological approach for interdisciplinary sustainability assessments of water governance systems based on what we call the sustainability wheel. The approach combines transparent identification of sustainability principles, their regional contextualization through sub-principles (indicators), and the scoring of these indicators through deliberative dialogue within an interdisciplinary team of researchers, taking into account their various qualitative and quantitative research results. The approach was applied to a sustainability assessment of a complex water governance system in the Swiss Alps. We conclude that the applied approach is advantageous for structuring complex and heterogeneous knowledge, gaining a holistic and comprehensive perspective on water sustainability, and communicating this perspective to stakeholders. 相似文献
228.
McCune Frédéric Samson-Robert Olivier Rondeau Sabrina Chagnon Madeleine Fournier Valérie 《Environmental science and pollution research international》2021,28(14):17573-17586
Environmental Science and Pollution Research - Water is essential for honey bees (Apis mellifera L.), but contaminated sources of water in agricultural environments represent a risk of exposure to... 相似文献
229.
Péron Olivier Suzuki-Muresan Tomo Abdillahi Danis Gaudin Pierre Abdelouas Abdesselam Lebeau Thierry 《Environmental Chemistry Letters》2019,17(1):521-526
Environmental Chemistry Letters - Radioactive Cs contamination is a major concern in case of a nuclear accident such as the Fukushima accident in 2011. Remediation methods have been proposed... 相似文献
230.