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11.
C. Paul Nathanail Laurent M. M. Bakker Paul Bardos Yasuhide Furukawa Alessandro Nardella Garry Smith Jonathan W. N. Smith Gabriele Goetsche 《补救:环境净化治理成本、技术与工艺杂志》2017,28(1):9-15
Sustainable remediation is the elimination and/or control of unacceptable risks in a safe and timely manner while optimizing the environmental, social, and economic value of the work. Forthcoming International Organization for Standardization (ISO) Standard on Sustainable Remediation will allow countries without the capacity to develop their own guidance to benefit from work done over the past decade by various groups around the world. The ISO standard has progressed through the committee draft (ISO/CD 18504) and draft international standard (ISO/DIS 18504) stages. The risk‐based approach to managing the legacy of historically contaminated soil and groundwater has been incorporated into policy, legislation, and practice around the world. It helps determine the need for remediation and the end point of such remediation. Remediation begins with an options appraisal that short lists strategies that could deliver the required reduction in risk. A remediation strategy comprises one or more remediation technologies that will deliver the safe and timely elimination and/or control of unacceptable risks. The ISO standard will help assessors identify the most sustainable among the shortlisted, valid alternative remediation strategies. Practitioners presenting case studies claiming to constitute sustainable remediation should now report how they have aligned their work with the new standard. Indicators are used to compare alternative remediation strategies. The simplest metric that allows a characteristic to act as an indicator should be chosen. Weightings indicators can become a contested exercise and should only be undertaken where there is a clear desire for it by stakeholders and a clear need for it in identifying a preferred strategy. The simplest means of ranking alternative remediation strategies should be adopted. 相似文献
12.
Daniela Iannazzo Alessandro Pistone Ida Ziccarelli Claudia Espro Signorino Galvagno Salvatore V Giofré Roberto Romeo Nicola Cicero Giuseppe D Bua Giuseppe Lanza Laura Legnani Maria A Chiacchio 《Environmental science and pollution research international》2017,24(17):14735-14747
Dendrimer-functionalized multi-walled carbon nanotubes (MWCNT) for heavy metal ion removal from wastewaters were developed. Triazole dendrimers (TD) were built directly onto the carbon nanotube surface by successive click chemistry reactions affording the zero- and first-generation dendrimer-functionalized MWCNT (MWCNT-TD1 and MWCNT-TD2). The Moedritzer-Irani reaction carried out on the amino groups present on the MWCNT-TD2 sample gave the corresponding α-aminophosphonate nanosystem MWCNT-TD2P. Both MWCNT-TD2 and MWCNT-TD2P nanosystems have been characterized by physical, chemical, and morphological analyses. Their chelating abilities towards the toxic metal ions Pb2+, Hg2+, and Ni2+ and the harmless Ca2+ ion have been experimentally evaluated in the two different sets of experiments and at the salt concentrations of 1 mg/mL or 1 μg/mL by inductively coupled plasma mass spectrometry (ICP-MS). The results of these studies pointed out the interesting chelating behavior for the phosphonated nanosystem towards the Hg2+ ion. The complexation mode of the best chelating system MWCNT-TD2P with mercury was investigated through density functional theory (DFT) calculations, suggesting a chelation mechanism involving the two oxygen atoms of the phosphate group. The synthesized dendrimers, supported on the multi-walled carbon nanotubes, have shown the potential to be used for the selective toxic metal ion removal and recovery. 相似文献
13.
Lucia Donnarumma Valter Pompi Alessandro Faraci Elisa Conte 《Journal of environmental science and health. Part. B》2013,48(5):449-454
The aim of these trials was to study the distribution of dieldrin in soil and its translocation to roots and the aerial parts of vegetable crops grown in greenhouses and fields. The main objectives were to characterize dieldrin accumulation in plant tissues in relation to the levels of soil contamination; uptake capability among plants belonging to different species, varieties and cultivars. The presence of the contaminant was quantified by gas chromatography-electron capture detector (GC-ECD) and confirmed by gas chromatography-mass spectrometer (GC-MS). The results showed a translocation of residues in cucurbitaceous fruits and flowers confirming that zucchini, cucumber and melon are crops with high uptake capability. The maximum level of dieldrin residue at 0.01 mg/kg was found to be a threshold value to safeguard the quality production of cucurbits. Tomato, lettuce and celery were identified as substitute crops to grow in contaminated fields. 相似文献
14.
Climate change, drought risk and land capability for agriculture: implications for land use in Scotland 总被引:1,自引:0,他引:1
Iain Brown Laura Poggio Alessandro Gimona Marie Castellazzi 《Regional Environmental Change》2011,11(3):503-518
Land capability classification systems define and communicate biophysical limitations on land use, including climate, soils
and topography. They can therefore provide an accessible format for both scientists and decision-makers to share knowledge
on climate change impacts and adaptation. Underlying such classifications are complex interactions that require dynamic spatial
analysis, particularly between soil and climate. These relationships are investigated using a case study on drought risk for
agriculture in Scotland, which is currently considered less significant than wetness-related issues. The impact of drought
risk is assessed using an established empirical system for land capability linking indicator crops with water availability.
This procedure is facilitated by spatial interpolation of climate and soil profile data to provide soil moisture deficits
and plant available water on a regular 1-km grid. To evaluate potential impacts of future climate change, land capability
classes are estimated using both large-scale ensemble (multi-simulation) data from the HadRM3 regional climate model and local-scale
weather generator data (UKCP09) derived from multiple climate models. Results for the case study suggest that drought risk
is likely to have a much more significant influence on land use in the future. This could potentially act to restrict the
range of crops grown and hence reduce land capability in some areas unless strategic-level adaptation measures are developed
that also integrate land use systems and water resources with the wider environment. 相似文献
15.
Recycling of the product of thermal inertization of cement-asbestos for various industrial applications 总被引:1,自引:0,他引:1
16.
Renewable energy sources are mainly used in the electrical sector. Electricity is not a storable commodity. Hence, it is necessary
to produce the requested quantity and distribute it through the system in such a way as to ensure that electricity supply
and demand are always evenly balanced. This constraint is actually the main problem related to the penetration of new renewables (wind and photovoltaic power)
in the context of complex energy systems. The paper analyzes some aspects in connection with the problem of new renewable
energy penetration. The case of Italian scenario is considered as a meaningful reference due to the characteristic size and
the complexity of the same. The various energy scenarios are evaluated with the aid of a multipurpose software taking into
account the interconnections between the different energetic uses. In particular, it is shown how the penetration of new renewable
energies is limited at an upper level by technological considerations and it will be more sustainable if an integration of
the various energy use (thermal, mobility and electrical) field will be considered. 相似文献
17.
Luciano Morselli Alessandro Santini Fabrizio Passarini Ivano Vassura 《Waste management (New York, N.Y.)》2010,30(11):2228-2234
Car fluff is the waste produced after end-of-life-vehicles (ELVs) shredding and metal recovery. It is made of plastics, rubber, glass, textiles and residual metals and it accounts for almost one-third of a vehicle mass. Due to the approaching of Directive 2000/53/EC recycling targets, 85% recycling rate and 95% recovery rate in 2015, the implementation of automotive shredder residue (ASR) sorting and recycling technologies appears strategic. The present work deals with the characterization of the shredder residue coming from an industrial plant, representative of the Italian situation, as for annual fluxes and technologies involved. The aim of this study is to characterize ASR in order to study and develop a cost effective and environmentally sustainable recycling system. Results show that almost half of the residue is made of fines and the remaining part is mainly composed of polymers. Fine fraction is the most contaminated by mineral oils and heavy metals. This fraction produces also up to 40% ashes and its LHV is lower than the plastic-rich one. Foam rubber represents around half of the polymers share in car fluff. Moreover, some chemical–physical parameters exceed the limits of some parameters fixed by law to be considered refuse derived fuel (RDF). As a consequence, ASR needs to be pre-treated in order to follow the energy recovery route. 相似文献
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