焦炉煤气液化技术研究

为了更好地开发焦炉煤气制LNG工艺技术,为焦炉煤气的回收利用开辟新途径,新方法。本文通过HYSYS模拟软件研究了混合制冷剂+氮气膨胀(并联)液化工艺流程,考察了精馏塔进口温度对系统能耗的影响,计算单位产品LNG的能耗,为焦炉煤气制LNG工业化提供参考。     

农户地膜回收意愿和行为的影响因素研究

基于云南省10个典型农业县的调研数据,采用双变量Probit模型研究农户地膜回收意愿和行为的影响因素,并分析规模异质性农户地膜回收意愿和行为影响因素的差异。研究表明:(1)个人特征对回收意愿和行为的影响基本一致,其中农户对残膜危害环境的认知显著影响回收意愿和行为。(2)家庭特征对回收意愿和行为的影响略有差异,其中劳动力规模正向影响回收意愿,负向影响回收行为。(3)生产经营特征对回收意愿和行为的影响存在较大差异,其中种植规模显著影响回收意愿,覆膜面积显著影响回收行为。地膜使用类型则只对回收行为有显著影响。(4)政策支持是影响所有农户地膜回收意愿和行为的关键变量。(5)种植大户的回收意愿和行为主要受政策支持的影响。     

The profile of the green consumer in Greece

Sustainable consumption is one of the major goals of the affluent European societies in their quest for sustainable development. A key player in sustainable consumption is the sustainable or green consumer. The aim of this study was to examine the profile of the Greek green consumer based on the study and empirical analysis of engagement in selected 3R (reduce – reuse – recycle) activities. In addition, the attitudes on certain issues related to sustainable consumption of the consumers were examined and analysed. Empirical analysis is based on the use of a cross‐section data set. An extensive survey of 300 Greek consumers via a questionnaire was carried out in the first trimester of 2008. The sampled households were located in five of the main and most representative regions of Athens, with respect to the socioeconomic characteristics (sex, age, income group, education level) of their residents. Respondents were asked to answer questions examining the 3R concept on daily issues such as solid waste generation and water and energy consumption. Empirical results are based on the estimation of regression models. Econometric models are estimated for each question explaining engagement in 3R activities. Empirical results suggest that sociodemographic characteristics do specify engagement in 3R related activities. In particular, age and income are the most influential factors that determine this engagement. In addition, our study reveals that four out of five Greek consumers identify global climate change as the most important issue of our time. However, only one in five of the respondents are willing to change their lifestyle in order to mitigate the negative environmental impacts of our everyday activities; compared with men, women are more willing to do so. One in two consumers report that eco‐friendly products are more expensive than standard ones. However, when questioned as to whether they would pay a higher price for products with less environmental impact, almost four out of five responded favourably.     

中国糖业发展循环经济的思考

本文首先介绍了中国糖业循环经济发展的现状，接着对目前糖业循环经济存在的不足进行分析，最后提出进一步发展中国糖业循环经济的思路。     

循环经济特征及其与可持续发展的关系

文章讨论了循环经济的内涵,剖析了循环经济观念特征、经济特征、技术特征、资源特征、环境特征、效率特征等主要特征,从核心思想、发展目标、本质内涵等方面分析了循环经济与可持续发展的关系,对于发展循环经济,实现可持续发展起到积极的作用。     

固体废弃物再利用与逆向物流

本文通过对固体废弃物回收再利用与循环经济之间关系的阐述和对逆向物流概念的介绍,认为发展逆向物流是提高固体废弃物再利用效率的根本途径。逆向物流的发展可以实现资源回收再利用的规模化经营,节约资源,提高企业经济效益和企业形象,有利于社会经济的可持续发展。     

循环经济与区域经济发展——以台州废旧五金拆解业为例

主要从循环经济角度探讨了台州区域经济发展的过程。首先，循环经济解决了台州“块状经济”发展所需的原料来源；其次，以废旧五金拆解业为主体的循环经济增长方式促进了台州经济的发展；第三，废旧五金拆解业也对台州的生态环境造成了一定的消极影响。最后提出了台州废旧五金拆解业发展现存的问题与相对应的政策建议。     

中国经济增长方式问题透析

中共中央《关于制定国民经济和社会发展第十一个五年规划的建议》指出,“十一五“期间,必须把经济结构调整和经济增长方式的转变作为关系全局的重大任务.中国经济要摆脱粗放式的运行模式,实现经济增长方式的转变,建设一个资源节约型、环境友好型社会,必须完善社会主义市场经济体制,转变政府职能,推进体制创新.同时,还要转变发展观念,创新发展模式,发展循环经济,调整经济结构,优化产业结构,坚持以人为本和技术立国,依靠科技进步,实现企业自主创新,走新型工业化道路.     

城市绿色消费问题对策--绿色工程

本文针对城市绿色消费问题提出了全面化、社会化的绿色工程概念，对绿色工程框架进行了详细的分析和阐述，并给出了支持绿色工程有力实施的平台体系。借此，希望本研究有助于我国循环经济的建设与发展。     

循环经济下的项目管理体系研究

面对经济高速发展所伴随的高消耗、高污染和资源约束问题，项目管理领域也开始把循环经济的理念运用到项目管理的全过程中，循环经济下的项目管理体系都是围绕着3R原则而进行的。通过循环经济与项目管理体系的结合，提高项目实施过程中的资源利用率和减少项目建成后对环境的污染程度，实现经济的可持续发展。