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301.
随着人类社会的进步,经济文明的发展,全球的环境问题日益严重,建设绿色的家园成为全世界人民的迫切愿望和各国政府的责任。我国作为一个发展大国,如何保护环境,解决环境污染问题,笔者认为解决环境问题的基本思路是首先政府要转变观念,通过立法、税收等强制性手段来保护环境,通过技术创新来解决环保中的技术问题,将环境污染的程度降到最低。 相似文献
302.
Yamada Kazuhito Fujimori Mariko 《Mitigation and Adaptation Strategies for Global Change》2003,8(3):221-235
The success of CDM depends on active participation of public and private entities. In particular, participation of wide range
of private companies is an important factor for the success. In order to promote the participation of private companies in
the CDM project activities as project participants, the authors clarify the steps and technical issues involved in the CDM
project design procedures in a step-by-step approach. The steps consist of outlining the project plans, identifying project
impacts, defining a project boundary, estimating GHG emissions reduction/enhancement of removals, documenting the results
of estimation, and designing of monitoring plans. The authors also propose guidance for project participants, especially for
those not familiar with the CDM, which provides plain explanation of major technical issues. In order to further develop a
complete guideline, it is necessary to integrate the outputs of the ongoing international initiatives concerning technical
issues of CDM into the stepwise approach proposed in this paper.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
303.
304.
通过对硫酸生产中所产生的酸性含砷等污染物废水治理设施及工艺的研究,对废水治理设施及工艺进行技术改造,提高了废水中砷等污染物的去除率,降低了废水中污染物浓度。处理后的废水主要污染物浓度能稳定达到新的行业排放标准和企业内部制定的循环用水标准,处理后的清水能作为生产工艺用水循环使用。 相似文献
305.
306.
In this paper we provide an analysis of directed technical change in the sector of electricity generation. We rely on patent data in fossil-fuel (FF) and renewable energy (REN) technologies for 5471 European firms over the 1978–2006 period. The novelty of our approach is in the focus on firm׳s heterogeneity in driving technological change. We make a distinction between small specialized firms, which innovate in only one type of technology, and large mixed firms, which innovate in both technologies, to analyse how REN patents can replace FF ones at the sector level both through a shift in innovation activities within existing firms and through firms׳ entry and exit. We use zero-inflated count data estimation techniques to identify the factors that affect specialized versus mixed firms׳ patenting behaviour both at the intensive (i.e., levels of innovation) and extensive (i.e., technological entry) margins. We further investigate the implications of our firm-level estimations for reducing the gap between REN and FF innovation at the aggregate level. We establish two key findings: (1) a decrease in the FF-REN technology gap mainly comes about through technological entry of specialized REN firms following an increase in REN market size; (2) increases in FF prices, FF market size, and FF knowledge stocks all increase the technology gap by increasing mixed firms FF innovation rates. An important implication of our results is that policies aimed at increasing REN innovation should focus on helping small firms to start and sustain innovation in the long-run. 相似文献
307.
本文运用对数平均的LMDI 分解模型,选取工业SO2、工业烟(粉)尘排放量作为污染物指标,将2006—2013 年,乌鲁木齐工业废气排放量影响因素分解为规模效应、结构效应、技术效应,考虑到技术效应机制的复杂性,进一步将技术效应细化为污染治理效应和清洁技术效应。研究结果表明:规模效应和结构效应增加乌鲁木齐工业废气排放,其中规模效应对工业废气排放量贡献率由2007 年的119.10%增加到2013 年的263.03%,结构效应对工业废气排放量的增加也起到一定的促进作用,但影响效果远低于规模效应,年贡献率均低于10%,技术效应阻碍工业废气排放的增加,贡献率由2007 年的-19.86%增加到2013 年的-172.50%。制造业和电力、燃气及水的生产和供应业废气排放量占工业废气排放总量的70% 左右,是乌鲁木齐工业废气污染的主要行业。清洁技术效应对SO2 的减排起促进作用,是阻碍工业SO2 排放量增加的主要因素。污染治理效应是工业烟(粉)尘的减排主要因素,说明目前乌鲁木齐工业烟(粉)尘的减排依赖于排放后的治理。 相似文献
308.
Technical specifications appropriate for the recycling of agricultural plastic wastes (APWs), widely accepted by the recycling industry were developed. The specifications establish quality standards to be met by the agricultural plastics producers, users and the agricultural plastic waste management chain. They constitute the base for the best economical and environmental valorisation of the APW.The analysis of the APW streams conducted across Europe in the framework of the European project “LabelAgriWaste” revealed the inherent characteristics of the APW streams and the inherent constraints (technical or economical) of the APW. The APW stream properties related to its recycling potential and measured during pilot trials are presented and a subsequent universally accepted simplified and expanded list of APW recycling technical specifications is proposed and justified. The list includes two sets of specifications, applied to two different quality categories of recyclable APW: one for pellet production process (“Quality I”) and another one for plastic profile production process (“Quality II”). Parameters that are taken into consideration in the specifications include the APW physical characteristics, contamination, composition and degradation. The proposed specifications are focused on polyethylene based APW that represents the vast majority of the APW stream. However, the specifications can be adjusted to cover also APW of different materials (e.g. PP or PVC) that are found in very small quantities in protected cultivations in Europe. The adoption of the proposed specifications could transform this waste stream into a labelled commodity traded freely in the market and will constitute the base for the best economical and environmental valorisation of the APW. 相似文献
309.
介绍了彭城电厂回流式循环流化床烟气脱硫的主要设计参数及工艺流程,并对运行中需注意的一些问题进行了分析与探讨。 相似文献
310.
作为湿法烟气脱硫的组成部分,吸收剂供应系统担负着供应二氧化硫吸收剂的重要任务。针对该系统在实际运行中存在的突出问题,进行了详细的原因分析,给出了预防措施和解决方法,并在此基础上提出了若干技术改进方案,供业内参考。 相似文献