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E.V. Antonakou K.G. Kalogiannis S.D. Stephanidis K.S. Triantafyllidis A.A. Lappas D.S. Achilias 《Waste management (New York, N.Y.)》2014,34(12):2487-2493
Pyrolysis appears to be a promising recycling process since it could convert the disposed polymers to hydrocarbon based fuels or various useful chemicals. In the current study, two model polymers found in WEEEs, namely polycarbonate (PC) and high impact polystyrene (HIPS) and their counterparts found in waste commercial Compact Discs (CDs) were pyrolysed in a bench scale reactor. Both, thermal pyrolysis and pyrolysis in the presence of two catalytic materials (basic MgO and acidic ZSM-5 zeolite) was performed for all four types of polymers. Results have shown significant recovery of the monomers and valuable chemicals (phenols in the case of PC and aromatic hydrocarbons in the case of HIPS), while catalysts seem to decrease the selectivity towards the monomers and enhance the selectivity towards other desirable compounds. 相似文献
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Luis A. Perez-BatresVan V. Miller Michael J. Pisani 《Journal of Cleaner Production》2011,19(8):843-851
Drawing upon institutional and stakeholder theories, we explore the ‘causal’ mechanisms of institutionalization and their influence on Sustainable Development initiatives. To test our arguments, we study the registration patterns of 394 large corporations from 12 Western European and Latin American countries into the United Nations Global Compact. Results indicate that the normative and mimetic mechanisms of institutionalization (i.e., academe and peer influence) are better indicators of Sustainable Development initiatives than the coercive one (i.e., government regulation). The implications of these findings are consequential if SD practices continue as an ethical choice, and not a mandated obligation, for corporate decision makers. 相似文献
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Dilemmas and advances in corporate social responsibility in Brazil. The work of the Ethos Institute 总被引:1,自引:0,他引:1
Ricardo Young 《Natural resources forum》2004,28(4):291-301
This article discusses the development of corporate social responsibility (CSR) in Brazil from the perspective of the Ethos Institute of Business and Social Responsibility. The Institute is a not‐for‐profit, non‐governmental organization, that has played a leading role in the Brazilian CSR effort. In Brazil, CSR initiatives have a long tradition of philanthropy, a consequence of the country's great social inequalities. The increased attention to corporate social responsibility has paralleled growing concern about sustainable development and the intensifying activities of pressure groups (consumers, customers, investors, NGOs, labour unions, the media, among others) that have been increasing since the 1990s as natural resources are progressively becoming exhausted, social tensions rising and environmental conditions deteriorating worldwide. This article identifies problems and obstacles to the growth of corporate social responsibility in Brazil, as well as advances and alternatives for CSR and towards creating conditions for the country to be internationally competitive and sustainable in the financial, social and environmental areas. 相似文献
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Water development in the Green River Basin of Wyoming is projected to increase salinity downstream in the Green River and Colorado River, and thereby increase salinity costs to users of water from these two rivers. Despite these water quality and economic impacts to downstream water users, Wyoming will probably be able to develop its currently unused but allocated water supplies of the Green River Basin. The Colorado River Compact and Upper Colorado River Basin Compact are binding, and protect Wyoming's share of the Colorado River System waters for future use. The argument that water may be used to greater profit downstream is not sufficient to reduce Wyoming's allocation. In addition, the no-injury rule under the appropriation doctrine of law does not appear to protect prior downstream appropriations from increasing salinity in this case. 相似文献
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研究了Windows Mobile智能手机平台上环境监测数据外业采集系统框架,以SQL Server Compact3.5数据库技术存储、管理现场监测数据,通过SQL Server复制技术将数据汇交到监测站的中心数据库中。提出了综合场景信息与业务因子监测数据同步(准同步)采集、一体化管理、关联分析、复合应用的集成应用思路。举例展示了系统配置和软件代码实现。 相似文献
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