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101.
102.
Renato Baciocchi Giulia Costa Elisabetta Di Bartolomeo Alessandra Polettini Raffaella Pomi 《Waste management (New York, N.Y.)》2009,29(12):2994-3003
This work presents the results of a study on accelerated carbonation of incinerator air pollution control residues, with a particular focus on the modifications in the leaching behaviour of the ash. Aqueous carbonation experiments were carried out using 100% CO2 at different temperatures, pressures and liquid-to-solid ratios, in order to assess their influence on process kinetics, CO2 uptake and the leaching behaviour of major and trace elements. The ash showed a particularly high reactivity towards CO2, owing to the abundance of calcium hydroxides phases, with a maximum CO2 uptake of ~250 g/kg. The main effects of carbonation on trace metal leaching involved a significant decrease in mobility for Pb, Zn and Cu at high pH values, a slight change or mobilization for Cr and Sb, and no major effects on the release of As and soluble salts. Geochemical modelling of leachates indicated solubility control by different minerals after carbonation. In particular, in the stability pH range of carbonates, solubility control by a number of metal carbonates was clearly suggested by modelling results. These findings indicate that accelerated carbonation of incinerator ashes has the potential to convert trace contaminants into sparingly soluble carbonate forms, with an overall positive effect on their leaching behaviour. 相似文献
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Monika Schlegel Alessandra Baumer Mariluce Riegel Ute Wiedemann Albert Schinzel 《黑龙江环境通报》2002,22(5):418-421
An Erratum has been published for this article in Prenatal Diagnosis 22(11) 2002: 1056. We report a case of maternal isodisomy 10 combined with mosaic partial trisomy 10 (p12.31-q11.1). Chromosome examinations from a CVS sample showed a karyotype 47,XY,+mar/46,XY. The additional marker chromosome which was present in 6/25 interphase nuclei was shown by fluorescence in situ hybridization (FISH) to have been derived from a pericentromeric segment of chromosome 10. DNA analysis was performed from umbilical cord blood from the fetus after termination of the pregnancy at 18 weeks. The results showed that the two structurally normal chromosomes 10 were both of maternal origin, whereas the marker chromosome derived from the father. Autopsy of the fetus revealed hypoplasia of heart, liver, kidneys and suprarenal glands, but, apart from a right bifid ureter, no structural organ abnormalities. This fetus represents the second reported instance of a maternal uniparental disomy (UPD) 10. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
105.
Zemiani Adriana Boldarini Maria Theresa Bettin Anami Marcelo Hidemassa de Oliveira Edson Fontes da Silva Alessandra Furtado 《Environmental science and pollution research international》2021,28(31):42107-42120
Environmental Science and Pollution Research - The tolerance of Mentha crispa L. (garden mint) cultivated in cadmium-contaminated oxisol for 120 days was analyzed using plant growth variables such... 相似文献
106.
Paris Elaine Cristina Malafatti João Otávio Donizette Sciena Camila Rodrigues Junior Luiz Ferreira Neves Zenatti Alessandra Escote Márcia Tsuyama Moreira Ailton José Freschi Gian Paulo Giovanni 《Environmental science and pollution research international》2021,28(19):23731-23741
Environmental Science and Pollution Research - Nanotechnology has been studied on environmental remediation processes to foster greater photocatalysts efficiency and reuse in wastewater. This study... 相似文献
107.
Alessandra Pugnetti Francesco Acri Luisa Alberighi Donato Barletta Mauro Bastianini Fabrizio Bernardi-Aubry Andrea Berton Franco Bianchi Giorgio Socal Cecilia Totti 《Chemistry and Ecology》2004,20(6):399-409
Taxonomic composition, biomass, primary production and growth rates of the phytoplankton community were studied in two stations in the NW Adriatic Sea on a seasonal basis, in areas characterized by differing hydrological and trophic conditions. The main differences between the two stations were quantitative rather than qualitative, most phytoplankton species being common to both stations. The effects of differing nutrient concentrations and plume spreading were evident. Biomass and primary production rates were significantly higher in the coastal station (S1), and the phytoplankton distribution in the water column was markedly stratified in S1 and more even in the offshore station (S3). However, chlorophyll a specific production, potential growth rate and production efficiencies were very similar in both stations, even when phosphorus concentrations were limiting. A discrepancy between potential and actual growth rate was observed: as a feature common to both stations, comparisons between potential and actual growth rates revealed that little carbon produced by phytoplankton accumulated as algal biomass; therefore, very high loss rates were estimated. 相似文献
108.
109.
Alessandra DiGiacomo David W.-L. Wu Peter Lenkic Bud Fraser Jiaying Zhao Alan Kingstone 《Journal of Environmental Planning and Management》2018,61(2):309-331
Increasing volumes of solid waste, implicated in environmental pollution and health problems, are central to the current environmental crisis. In two randomized field experiments, we demonstrate that convenience dramatically boosts recycling and composting rates in multi-family dwellings and university residences. When compost bins were placed on each floor in a multi-family residence, instead of on the ground floor, composting rates increased by 70%, diverting 27 kilograms of compost from the landfill per unit per year. When recycling stations were placed just meters from suites in student residences, instead of in the basement, recycling increased by 147% (container), and 137% (paper), and composting increased by 139%, diverting 23, 22, and 14 kilograms of containers, paper, and compost, respectively, from the landfill per person per year. Simply making recycling and composting convenient can significantly increase waste diversion, and as such this single intervention has important implications for waste management and environmental policy. 相似文献
110.
Azo-dyes photocatalytic degradation in aqueous suspension of TiO2 under solar irradiation 总被引:3,自引:0,他引:3
Augugliaro V Baiocchi C Prevot AB García-López E Loddo V Malato S Marcí G Palmisano L Pazzi M Pramauro E 《Chemosphere》2002,49(10):1223-1230
The photodegradation of two common and very stable azo-dyes, i.e. methyl-orange (C14H14N3SO3Na) and orange II (C16H11N2SO4Na), is reported. The photocatalytic oxidation was carried out in aqueous suspensions of polycrystalline TiO2 irradiated by sunlight. Compound parabolic collectors, installed at the “Plataforma Solar de Almería” (PSA, Spain) were used as the photoreactors and two identical reacting systems allowed to perform photoreactivity runs for the two dyes at the same time and under the same irradiation conditions. The disappearance of colour and substrates together with the abatement of total organic carbon content was monitored. The main sulfonate-containing intermediates were found to be in lower number in respect to those obtained under artificial irradiation. In particular there were no more evidence of the presence of hydroxylated transients. The dependence of dye photooxidation rate on: (i) substrate concentration; (ii) catalyst amount; and (iii) initial pH was investigated. The influence of the presence of strong oxidant species (H2O2, S2O82−) and some ions (Cl−, SO42−) on the process was also studied. 相似文献