再生资源产业人才需求与院校专业人才培养分析

再生资源产业的快速发展产生了巨大的人才需求,资源循环专业也随之在高等院校中建立起来。如何实现专业人才供需的有机对接,有力地促进再生资源产业的现代化发展,成为亟需解决的难题。分析了再生资源产业发展的现状以及专业人才需求,以及院校资源循环专业人才培养的现状与问题,对促进再生资源产业人才供需对接提出了一些建议。     

废混凝土在GRC中的再生利用探究

研究了再生砖骨料的取代率对再生骨料GRC的影响及变化规律,并进一步采用正交设计方法,研究了粉煤灰、硅灰及再生混凝土骨料对GRC的影响。结果表明:再生骨料GRC的强度随废混凝土取代率的提高先增长后下降,当废混凝土取代天然砂30%,可达到或超过天然砂GRC的力学性能;当粉煤灰取代水泥10%,同时硅灰取代水泥10%,废混凝土取代天然砂30%时,其抗折、抗压强度值最大。     

废铝回收处理技术及工艺研究

随着我国用铝量的逐年增加,再生铝高值利用越来越受到行业关注。介绍了废铝回收处理工艺及设备,以及废铝回收处理过程中的技术难点。指出废铝回收再利用,对节约资源、保护环境具有重要意义。     

腐蚀监测系统在飞机上的应用

介绍了在飞机上应用的腐蚀监测系统的工作原理、监测功能和使用模式,总结了国外腐蚀监测系统在飞机上的应用现状,指出了腐蚀监测系统研发及应用的关键技术,并提出了该腐蚀监测系统研发及应用的发展趋势。     

中国废旧家电处理技术的现状与对策研究

家用电器的更新换代使得废旧家电的资源化利用问题日益突出,不合理处置和回收会给环境造成极大污染。因此,广泛开展废旧电器回收利用方面的研究,使这些宝贵的二次资源得到科学合理的资源化和无害化处置,对保证人类所需生产和生活资源的永续利用,促进人类的可持续发展具有十分重要的意义。介绍了中国废旧家电年废弃量及回收利用价值,总结了处理废旧家电的基本技术特点及中国处置技术方面存在的问题。在此基础上,对中国废旧家电回收处理工艺提出建议和对策。     

废旧锂电池的回收与再利用研究

目前废旧电池污染对人类健康及环境造成的危害越来越受到人们的关注.结合目前国内废旧锂电池回收概况及区域废旧锂电池回收的实地调研情况,了解废旧锂电池的回收再利用现状及人们对废旧锂电池的认识,分析锂电池的再利用价值.同时,结合电池品种羔异的特性,设计出针对性强、可行性高的废弃锂池回收体系;通过分析锂电池工作的基本工作原理、使用特性及电池材料组成成分,提出一些延长锂电池使用寿命、增加使用周期的方法.     

Recycling in Jerusalem: right or privilege?

This study analyses disparities in the provision of environmental services in Jerusalem, specifically through the distribution of recycling bins. The allocation of recycling bins in Jerusalem is uneven. Some neighbourhoods have more than their share of infrastructure, while others do not have any recycling bins at all. The spatial distribution of recycling bins throughout the city is analysed across the ethno-religious and socioeconomic divides, enabling us to determine whether the opportunity to recycle is a right or a privilege. The findings demonstrate that the Arab areas are literally not serviced. Ultra-Orthodox (Haredi) Jewish neighbourhoods are discriminated against unless socioeconomic levels and population size are controlled. Therefore, waste-management policies reproduce social inequalities resulting in environmental injustice. Due to the fact that recycling in Jerusalem is voluntary and not obligatory, and that in general the public wants to recycle, the opportunity to recycle is indeed a privilege.     

Energy and temperature performance analysis of geothermal (ground source) heat pumps integrated with permeable pavement systems for urban run-off reuse

Geothermal (ground source) heat pumps (GHP) and permeable pavement systems (PPS) have demonstrated their effectiveness in both industry and academic research during recent decades. To meet the rising demand for sustainable, recyclable and energy efficient techniques, research has focused on the combination of techniques to enhance existing or develop new applications.

This paper reports on an experimental programme that combined GHP with PPS for nutrient removal and system energy balancing. Experimental data collected over a 3-year period have provided evidence of highly efficient removal rates of up to 99% for ammonia–nitrate and biochemical oxygen demand; and 96% removal rates were obtained for orthophosphate–phosphorus. This paper also contains energy efficiency ratio (EER) and coefficient of performance (COP) calculations. Cyclic heat removal and heat rejection allowed for stable temperature and pump COP and EER sustainability. The results prove that PPS systems are appropriate for GHP installation, delivering high and stable pollutant removal with EER efficiencies between 1.5 and 5.5.

The combination of GHP with PPS has the potential to provide a new sustainable and eco-friendly practice.     

Ecological and economical assessment of end‐of‐life waste recycling in the electrical and electronic recovery sector

Technological innovation and shorter product life cycles of electrical and electronic equipment coupled with their rapidly growing applications have resulted in the generation of an enormous amount of waste from electrical and electronic equipment (WEEE). To address the potential environmental problems that could stem from improper end‐of‐life management of WEEE, many countries have drafted national legislation to improve the reuse, remanufacture and material recycling from WEEE, and to reduce the amount of such waste going to landfills. With the introduction of such legislation comes an increased need for the recovery operators to evaluate the recycling costs and environmental benefits of reclaimed products and materials in order to select the most appropriate end‐of‐life options for individual products in WEEE. This paper presents a systematic methodology for ecological and economical assessment to provide a holistic understanding of the impacts associated with different end‐of‐life options for such waste. This assessment, in addition to providing decision‐support for the selection of the best possible end‐of‐life option for a particular product in WEEE, could also generate vital information to support the design and material selection processes during the initial product development activities. The assertion made is that the detailed considerations of the ecological and economical impacts associated with different end‐of‐life options will significantly improve the recovery and recycling of WEEE.     

废旧轮胎回收利用技术及其应用前景

对废旧轮胎的各种回收利用技术进行了介绍,废旧轮胎的回收利用方法很多,其中有直接利用方法,包括翻新、用于建筑材料、原形改制等;还有间接利用方法,包括生产再生胶、胶粉、热利用、热裂解等。在此基础上,对我国废旧轮胎回收利用方面存在的问题进行了分析并提出了相应的发展建议。