模糊综合评价在氧化沟能耗评价中的应用

在对环太湖流域4座采用氧化沟工艺的城市污水处理厂进行能耗调研的基础上,以吨水位能耗(E)、生化段装机容量(η)、有机物去除量(ΔCOD)、氨氮去除量(ΔNH3-N)、总磷去除量(ΔTP)作为评价氧化沟法城市污水厂能耗的指标,结合隶属度函数,应用单因素模糊综合评价法对所调研的污水处理厂进行能耗水平定量评价。得出A污水处理厂的能耗级别为二级,B和C污水处理厂的能耗级别为三级,D污水处理厂能耗级别为五级。级别越高能耗越大。     

人工快速渗滤系统中人工快渗池对污染物的去除效果研究

为了阐明人工快速渗滤系统中人工快渗池对污染物的去除效果,对深圳市某污水处理厂的人工快渗池进、出水各项水质指标进行了全面研究。结果表明,该人工快渗池进水水质波动不大,出水水质稳定且良好,对COD和BOD5均有良好的去除效果;NH3-N去除率在97%以上,硝化作用很强,NH3-N在硝化菌的作用下几乎全部被氧化成硝态氮;SS去除率在90%以上,TP去除率在40%～70%。研究结果有助于系统地了解人工快渗池在整个人工快速渗滤系统中所发挥的作用,为提高人工快速渗滤系统的除污能力提供了理论依据。     

废水除磷方法与原理的研究进展

介绍了污水的各种常用除磷技术方法及原理,为不同条件下的污水除磷提供参考与选择的依据,并探讨了除磷技术的发展趋势。     

Water-soluble organic nitrogen (WSON) in size-segregated atmospheric particles over the Eastern Mediterranean

Atmospheric water-soluble organic nitrogen (WSON) was determined on size-segregated aerosol particles collected during a two years period (2005–2006) in a remote marine location in the Eastern Mediterranean (Finokalia, Crete island). Average concentration of WSON was 5.5 ± 3.9 nmol m^?3 and 11.6 ± 14.0 nmol m^?3 for coarse (PM_1.3-10) and fine (PM_1.3) mode respectively, corresponding to 13% of Total Dissolved Nitrogen (TDN) in both modes. Air masses origin and correlation with tracers of natural and anthropogenic sources indicate that combustion process (biomass burning and fossil fuel) and African dust play an important role in regulating levels of WSON in both coarse and fine aerosol fractions. Chemical speciation of organic nitrogen pool was attempted by analyzing 47 fine aerosol samples (PM₁) for 17 free amino acids (N-FAA), dimethylamine (DMA) and trimethylamine (TMA). The average concentration of N-FAA was 0.5 ± 0.5 nmol m^?3, while the average concentration of DMA was 0.2 ± 0.8 nmol m^?3, TMA was below detection limit. The percentage contribution of N-FAA and DMA to WSON was 2.1 ± 2.3% and 0.9 ± 3.4%, respectively.     

国家储备物资的属性功能及其作用价值

从全球化、国情和宏观经济运行的现代视角对国家储备物资的实质属性及其功能特征进行深入和系统分析的基础上,揭示了国家储备物资在国家发展、社会稳定和经济建设等方面的必要性及其投入使用的作用原理,对国家储备物资参与国家经济、安全和社会生活的现代价值及其意义进行了研究。研究证明,在应对突发性事件或不确定因素所造成的巨灾和风险时,国家储备物资因其属性功能而不仅具有比较优势,更具有绝对优势;它们的投入和使用对国家政治和经济的稳定,保证民生和国家安全等方面,可以发挥刚性作用与弹性作用。这种功能性的优势及其作用是市场机制不具备的效能,是社会其他资源或力量无法替代的,在经济全球化和现代化发展中,它们是国家实力与核心竞争力的重要成分。     

Urban Water Resources Quota Management: The Core Strategy for Water Demand Management in China

Since China has the largest population in the world, the available water resources per capita in China are very limited. With the rapid economic development that is currently occurring, the shortage of water resources at the national level has become extremely critical. How to solve the problems due to water scarcity and water pollution has received increasing attention from the Chinese government and various communities. In order to provide a sustainable development environment for 1.6 billion people in the future, the whole country has started to reform urban water resources management systems in terms of related policies, regulations, methodologies, and technologies focusing on improving the efficiency and effectiveness in water use. Urban water quota management has now become a core strategy in developing a water resources governance model for water demand management aiming at establishing a water-saving society. This paper introduces the main stages and the processes of implementing water quota management in China, analyzes the basic principles, and expounds the elements, information foundation, core module and operational model of the urban water quota management system. It has been demonstrated that urban water quota management has made some remarkable contribution not only in transforming the pattern of water mode and strengthening water management enforcement but also in integrating various management methods in saving water and preventing pollution.     

关于落实我国绿色采购制度的思考

绿色采购目前已成为国际上公共机构优化产业结构及转变经济增长的方式。中国绿色采购制度的落实能发挥公共机构集中采购的规模效益,对社会发展、经济建设具有强大的导向作用,并可引导社会绿色消费和推动经济和社会可持续发展。本文介绍了一些发达国家绿色采购的发展历程和成功经验,分析了我国绿色采购的现状,对今后落实发展绿色采购制度提出了相应的对策和建议。     

火电厂氮氧化物控制标准、政策分析及研究

制订污染物的排放标准及控制政策是治理环境污染的主要措施之一,世界各国针对火电厂氮氧化物（NOx）排放量分别制订了适合各国国情的控制政策及排放标准。通过对美国、欧盟及日本等世界主要发达国家及地区火电厂氮氧化物排放控制对策的分析,提出了对我国火电厂氮氧化物排放控制政策的建议。     

我国废旧橡胶综合利用的现状及发展建议

随着我国橡胶资源消耗量的增大和废旧橡胶总量的增多,正确合理地引导扶持废旧橡胶综合利用产业已成为不容忽视的问题。本文介绍了废旧橡胶综合利用的主要途径,分析了我国废旧橡胶的综合利用现状,提出了废旧橡胶综合利用的发展建议。