吸附法油气回收装置中真空泵的安装与调试

简要介绍了济南分公司油气回收装置、真空泵的工作原理以及安装与调试应注意的问题.     

A review of research on the environmental impact of e-business and ICT

This paper attempts to provide a review of the current state of the art of how e-business/ICT affects the environment. The work reviewed is in various forms including journal papers and thesis which have been peer-reviewed, as well as other resources such as projects and project reports, conference and symposia, and websites. It is claimed that the research examined has captured the most important work to date, either for a general knowledge of this new area or for background study by experts carrying out future research. The review has found that the currently dominant approach is either a micro-level case study approach or a macro-level statistical approach. It is concluded that a more predictive and empirical model, which can be applied within a sector of society, should be more beneficial in the long term. This approach should help simulate potential impacts resulting from changes of indicators, so that positive effects can be promoted and negative ones alleviated proactively, rather than knowing and accepting outcomes passively.     

Archaeal community structure along a gradient of petroleum contamination in saline-alkali soil

The impact of petroleum on archaeal community in salinealkali soils was investigated, which will expand the knowledge of the archaeal population involved in the natural attenuation of hydrocarbons in extreme environments.     

基于REOF方法的辽宁气候舒适度区域特征分析

基于辽宁省50个气象站1964-2008年的气象资料,采用适应东北地区的人体舒适度计算公式及分级标准,得出辽宁省近45年历年人体各舒适度级别日数,使用旋转经验正交分解法(REOF),对辽宁省气候舒适度进行区域划分,并分析了各区域气候舒适度的空间分布特征和变化趋势.结果表明:(1)根据前4个旋转倚载向量场高载荷区分布,将...     

型煤产业发展与提高

本文论述发展工业型煤产业的重要意义和技术质量保证,洁净煤技术是控制污染和节约能源,提高煤炭资源利用率的重要技术项目,将粉煤生产成型煤,为工业、民用提供洁净的燃料,既充分利用煤炭资源同时改善能源结构,又有显著的环保效益,国家把煤炭产业列入中国洁净煤技术有限发展项目,目前制约型煤产业的发展要造气型和燃烧型煤并举,同时有利于用户的节能效益。     

鄂尔多斯节能减排现状及建议

鄂尔多斯作为典型资源型城市,资源性产业在国民经济中长期占据主导地位,因此节能减排任务十分艰巨。本文分析总结了“十一五”以来鄂尔多斯市节能减排取得的成效及采取的主要措施,并在此基础上提出了几点建议。     

Biosorption mechanisms involved in immobilization of soil Pb by Bacillus subtilis DBM in a multimetal-contaminated soil

Mechanisms of soil Pb immobilization by Bacillus subtilis DBM, a bacterial strain isolated from a heavy-metal-contaminated soil, were investigated. Adsorption and desorption experiments with living bacterial cells as well as dead cells revealed that both extracellular adsorption and intracellular accumulation were involved in the Pb2＋removal from the liquid phase. Of the sequestered Pb（II）, 8.5% was held by physical entrapment within the cell wall, 43.3% was held by ion-exchange, 9.7% was complexed with cell surface functional groups or precipitated on the cell surface, and 38.5% was intracellularly accumulated.Complexation of Pb2＋with carboxyl, hydroxyl, carbonyl, amido, and phosphate groups was demonstrated by Fourier transform infrared spectroscopic analysis. Precipitates of Pb5（PO4）3OH, Pb5（PO4）3Cl and Pb10（PO4）6（OH）2that formed on the cell surface during the biosorption process were identified by X-ray diffraction analysis. Transmission electron microscopy–energy dispersive spectroscopic analysis confirmed the presence of the Pb（II）precipitates and that Pb（II） could be sequestered both extracellularly and intracellularly.Incubation with B. subtilis DBM significantly decreased the amount of the weak-acid-soluble Pb fraction in a heavy-metal-contaminated soil, resulting in a reduction in Pb bioavailability, but increased the amount of its organic-matter-bound fraction by 71%. The ability of B.subtilis DBM to reduce the bioavailability of soil Pb makes it potentially useful for bacteria-assisted phytostabilization of multi-heavy-metal-contaminated soil.     

大型浮顶储罐雷击事故分析及防雷技术研究

通过对典型大型浮顶储罐雷击事故分析,总结了这些事故的共性问题。结合浮顶储罐雷击形式及雷电火花放电研究,分析了大型浮顶储罐雷击火灾事故的机理。岚山输油站在等电位连接、一次密封形式结构等方面进行技术改造,经过验证这些措施有效减少了大型浮顶储罐火灾事故的发生。     

春、夏季长江口及其邻近海域溶解N2O的分布和海-气交换通量

分别于2012年3月和7月对长江口及其邻近海域进行了调查,对水体中溶解氧化亚氮(N2O)的分布及海-气交换通量进行了研究.结果表明,春季长江口及其邻近海域表层海水中溶解N2O浓度范围为9.34~49.08 nmol·L-1,平均值为(13.27±6.40)nmol·L-1.夏季表层溶解N2O浓度范围为7.27~27.81 nmol·L-1、平均值为(10.62±5.03)nmol·L-1.两航次表、底层海水中溶解N2O浓度相差不大.长江口溶解N2O浓度由近岸向外海逐渐降低,受陆源输入影响显著.溶解N2O浓度高值出现在长江口最大浑浊带附近,这主要是由于水体中较高的硝化速率造成的.温度是影响N2O分布的另一个重要因素,对溶解N2O浓度有双重作用.春季和夏季表层海水中N2O饱和度范围分别为86.9%~351.3%和111.7%~396.0%,平均值分别为(111.5±41.4)%和(155.9±68.4)%,大部分站位处于过饱和状态.利用LM86、W92和RC01公式分别计算了长江口及其邻近海域N2O的海-气交换通量,春季分别为(3.2±10.9)、(5.5±19.3)和(12.2±52.3)μmol·(m2·d)-1,夏季分别为(7.3±12.4)、(12.7±20.4)和(20.4±35.9)μmol·(m2·d)-1,初步估算出长江口及其邻近海域的年平均释放量分别为0.6×10-2Tg·a-1(LM86)、1.1×10-2Tg·a-1(W92)、2.0×10-2Tg·a-1(RC01).长江口及其邻近海域虽然只占全球海洋总面积的0.02%,但其释放的N2O占全球海洋释放量的0.06%,表明长江口及其邻近海域是产生和释放N2O的活跃区域.     

负载型Mn-Co/TiO2催化剂的制备及其低温NH3选择催化还原NO

采用浸渍法制备了一系列以成型TiO2为载体的Mn-Co/TiO2低温SCR催化剂,研究分析了活性组分担载量、Mn含量、焙烧温度、焙烧时间等制备参数和进口NO浓度、空速、O2体积分数、NH3/N2摩尔比等操作条件对催化剂脱硝反应活性的影响.结果表明:活性组分担载量为30%,Mn/(Mn+Co)摩尔比为80%,在500℃下焙烧6 h得到的Mn-Co/TiO2催化剂具有较高的NO转化率;在进口NO浓度为600×10-6、O2体积分数6%、空速10000 h-1、150℃条件下,NO脱除率接近100%.