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201.
Lilian Rodrigues Rosa Souza Luiza Carolina Pomarolli Mrcia Andreia Mesquita Silva da Veiga 《Environmental science and pollution research international》2020,27(10):10205-10227
Soil pollution with toxic elements is a recurrent issue due to environmental disasters, fossil fuel burning, urbanization, and industrialization, which have contributed to soil contamination over the years. Therefore, the remediation of toxic metals in soil is always an important topic since contaminated soil can affect the environment, agricultural safety, and human health. Many remediation methods have been developed; however, it is essential to ensure that they are safe, and also take into account the limitation of each methodology (including high energy input and generation of residues). This scenario has motivated this review, where we explore soil contamination with arsenic, lead, mercury, and chromium and summarize information about the methods employed to remediate each of these toxic elements such as phytoremediation, soil washing, electrokinetic remediation, and nanoparticles besides elucidating some mechanisms involved in the remediation. Considering all the discussed techniques, nowadays, different techniques can be combined together in order to improve the efficiency of remediation besides the new approach of the techniques and the use of one technique for remediating more than one contaminant. 相似文献
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203.
Godoi Marcelo Leitemberger Andrielli Böhs Lucas Martins Correa Silveira Marcia Victoria Rafique Jamal D’Oca Marcelo Gonçalves Montes 《Environmental Chemistry Letters》2019,17(3):1441-1446
Environmental Chemistry Letters - Herein, we describe a simple and inexpensive protocol for the hydrothiolation of alkynes. In this context, water extract of rice straw ash (WERSA) has been proven... 相似文献
204.
Rodolfo N. Sousa Marcello M. Veiga John Meech Janis Jokinen Aguinaldo J. Sousa 《Journal of Cleaner Production》2011,19(6-7):580-587
This paper describes a tool developed to evaluate environmental risks at a Brazilian artisanal small-scale gold mining site. The tool consists of a matrix used to determine the relevance of such risks through the classification of mining activities according to the likelihood that they may cause environmental impacts. The language and method are very simple, and thus appropriate for local stakeholders. It ensures their participation when developing a plan of action for intervention and training. When applied to a pilot site in the Brazilian Amazon, the matrix revealed the variables that pose higher environmental risks. These activities were subsequently addressed in a training program to promote better practices. As a result, the mining activities were improved by 28.8% when comparing compliance to environmental requisites before and after the training program. Specifically, the training program resulted in improved gold recovery, and reduced environmental and health impacts. 相似文献
205.
This article reports on a stakeholder engagement process to develop the International Guidelines on Mercury Management in Small-Scale Gold Mining. Commissioned by the United Nations Global Mercury Project, the purpose of the guidelines is to assist policymakers, practitioners, researchers, miners and the public in developing strategies for reducing mercury use, eliminating major pollution point sources and reducing risks. The guidelines are proposed with the view of supporting miners and their communities by promoting safer, more efficient practices that improve environmental and human health. The paper discusses challenges in addressing mercury issues and technical measures in the guidelines. The paper also highlights the need for interactive engagement in communities to discuss and adapt the guidelines as appropriate, in order to create technology transfer strategies, regulatory measures and strategic priorities that are suitable to the local context. 相似文献
206.
I. Kádas G. Árvai K. Mikló G. Horváth L. Toke G. Tóth 《Journal of environmental science and health. Part. B》2013,48(3):561-566
Abstract Strigol (1) is a natural product that triggers suicidal germination of parasitic Striga species. Here we present an improved annulation sequence for the synthesis of the tricyclic moieties of strigol and its analogues. Our approach makes use of the one‐pot cyclization of 5‐nitro‐2‐pentanone and cyclopent‐2‐enone diesters to afford 7‐methyl‐4‐nitro‐l‐oxo‐hydrindene derivatives. Functional group elaboration of these intermediates leads to a series of hydrindene‐2‐acetic and propionic acids. 相似文献
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208.
Abstract This article reports the findings of a qualitative study with residents living in six deprived neighbourhoods in the UK and the front-line workers and local policymakers responsible for the renewal of these areas. The study was an attempt to raise awareness of local environmental concerns in the context of a national and local policy agenda, which has, until recently, largely overlooked the impacts of degraded environments on the lives and activities of the people who live in them. A key aim for the study was to raise people's concerns with local decision-makers and examine how far these might be addressed through the existing financial, administrative and legislative arrangements for neighbourhood renewal in the UK, namely Local Strategic Partnerships. The research was designed to provide practical lessons and policy recommendations for others wishing to raise the profile of environmental justice in the context of neighbourhood level regeneration projects, in both the UK and elsewhere in the ‘developed’ world. 相似文献
209.
Ferrero Pablo Attallah Olivia A. Valera Miguel Ángel Aleksic Ivana Azeem Muhammad Nikodinovic-Runic Jasmina Fournet Margaret Brennan 《Journal of Polymers and the Environment》2022,30(7):2837-2846
Journal of Polymers and the Environment - An energy-efficient high throughput pre-treatment of low-density polyethylene (LDPE) using a fast, reactive extrusion (REX) assisted oxidation technique... 相似文献
210.
Medina-Juárez Obdulia Rangel-Vázquez Israel Ojeda-López Reyna García-Sánchez Miguel Ángel Rojas-González Fernando 《Environmental science and pollution research international》2022,29(39):58472-58483
Environmental Science and Pollution Research - The present work reports the changes for the mesoporous materials SBA-15 and KIT-6 associated with the structural, textural, and chemical properties... 相似文献