碎砖骨料再生混凝土配合比研究

用正交法试验分析了碎砖骨料混凝土的配合比，提出水灰比和碎砖骨料掺量分别是影响混凝土强度和流动性的主要因素。倡导用碎砖做混凝土骨料，保护生态环境。     

采取多种手段综合整治圆明园防渗工程

圆明园是北京市享誉中外的世界文化遗产公园，园内有140hm^2湖面，因湖水渗漏严重，每年要进行大量补水。为此圆明园管理处投资数千万，进行了湖底铺膜防渗工程，2005年4月份，接近完工的防渗工程被国家环保总局紧急停止。该项工程如何走出困境，本文从湖底开孔建渗水井，引进中水，以及湖水活化等多方面，提出一些合理化建议，希望以此构建一个水资源节约利用，而且可持续发展的湖区水生生态系统和一个和谐的园区人文景观。     

海域岩土工程勘察施工工艺

海域岩土工程勘察因受风浪、潮汐、定位等因素影响,与陆地勘察相比,施工工艺差异较大。本文以深圳西港区(位于珠江口)某航道工程为例,详细介绍其施工工艺,以期对海域勘察工程实施有一定的参考意义。     

Geological CO2 Storage as a Climate Change Mitigation Option

Carbon dioxide (CO₂₎ capture and storage is increasingly being considered as an important climate change mitigation option. This paper explores provisions for including geological CO₂ storage in climate policy. The storage capacity of Norway's Continental Shelf is alone sufficient to store a large share of European CO₂ emissions for many decades. If CO₂ is injected into oil reservoirs there is an additional benefit in terms of enhanced oil recovery. However, there are significant technical and economic challenges, including the large investment in infrastructure required, with related economies of scale properties. Thus CO₂ capture, transportation and storage projects are likely to be more economically attractive if developed on a large scale, which could mean involving two or more nations. An additional challenge is the risk of future leakages from storage sites, where the government must take on a major responsibility. In institutional and policy terms, important challenges are the unsettled status of geological CO₂ storage as a policy measure in the Kyoto Protocol, lack of relevant reporting and verification procedures, and lack of decisions on how the option should be linked to the flexibility mechanisms under the Kyoto Protocol. In terms of competitiveness with expected prices for CO₂ permits under Kyoto Protocol trading, the relatively high costs per tonne of CO₂ stored means that geological CO₂ storage is primarily of interest where enhanced oil recovery is possible. These shortcomings and uncertainties mean that companies and governments today only have weak incentives to venture into geological CO₂ storage.     

秦沈客运专线路基声屏障工程设计与施工

秦沈客运专线首次在通过村庄附近地段的路基上设计安装声屏障工程 ,作为降低列车通过时的噪音、减弱扰民程度的重要措施。文中介绍了声屏障工程的设计与施工、管理等情况。     

呼和浩特市发电厂污染物综合治理与资源化利用技术研究

本文以呼市发电厂废水、粉尘和灰场污染治理为例，研究制定发电厂粉煤灰综合治理与回收利用技术方案、旧灰场的生态工程建设和冲灰水的回收利用方案，通过污染物治理，废水的利用率达到85％，粉煤灰处理后的产草量和年利用率为98％，灰场的植被覆盖度达到97％，通过治理使发电厂的污染物排放量减少，废弃物资源得以利用，灰场变成环境优美的生态旅游区，为我国电厂的治理工作提供一个切实可行的科学依据。     

利川市生活垃圾卫生填埋场场址的比选

选址是卫生填埋场建设和运行的关键。以利川市实际情况为前提和依据，筐选出7个预选场址，经实地踏勘和从填坦容量、运输距离、搬迁户数量等方面分析，遴选出其中3个；分别从工程学、环境学、经济学、社会与法律等方面中如交通状况、服务年限、占地面积、基岩类型、渗透系数、地下水位、覆盖土来源等13项具体条件上对3个备选场址进行了详细的分析比较，确定杨柳村大天井为最终选定场址。利川垃圾填埋场的选址工作也可以为同类型的城市或地区提供参考和借鉴。     

Climate Change and Energy Technologies

The long time scale of the climate change problem and the inherent nature of the carbon cycle bring important implications for present technology development efforts. Even if major technology improvements are achieved for non-carbon-emitting technologies such as energy-intensity improvements, wind, solar, biomass, and nuclear over the course of the 21^st century, most examinations of potential future greenhouse emissions conclude that additional technology development will be required to stabilize greenhouse gas concentrations. The evelopment of an expanded suite of technologies including carbon capture and disposal, hydrogen systems and biotechnology hold the potential to dramatically reduce the cost of stabilizing greenhouse gas concentrations. This paper examines these technologies in the context of a global integrated assessment model of energy, agriculture, land-use, economics, and carbon cycle processes.     

氯代有机物的生物处理前景

综述氯代有机物的结构与其生物降解性的关系。降解机理和所需环境条件，以及利用现代基因工程技术提高控制氯代有机物污染能力的可行性；研究的热点领域有：共基质条件，厌氧－好氧联合处理系统，构建跗工程菌株，化学、物理和生物联合处理工艺和反应器设备等；表明利用生物技术控制氯代有机物污染的应用前景是光明的。