流化床电偶反应器

探讨了流化床电偶反应器的工作原理 ,阐述了流化床电偶反应器的结构特点及工艺性能 ,重点介绍了该反应器对多种有机废水和重金属离子废水净化的作用。     

Life cycle analysis and choice of natural gas-based automotive alternative fuels in Chongqing Municipality,China

Road transport produces significant amounts of emissions by using crude oil as the primary energy source. A reduction of emissions can be achieved by implementing alternative fuel chains. The objective of this study is to carry out an economic, environmental and energy (EEE) life cycle study on natural gas-based automotive fuels with conventional gasoline in an abundant region of China. A set of indices of four fuels/vehicle systems on the basis of life cycle are assessed in terms of impact of EEE, in which natural gas produces compressed natural gas (CNG), methanol, dimethylether (DME) and Fischer Tropsch diesel (FTD). The study included fuel production, vehicle production, vehicle operation, infrastructure and vehicle end of life as a system for each fuel/vehicle system. A generic gasoline fueled car is used as a baseline. Data have been reviewed and modified based on the best knowledge available to Chongqing local sources. Results indicated that when we could not change electric and hydrogen fuel cell vehicles into commercial vehicles on a large scale, direct use of CNG in a dedicated or bi-fuel vehicle is an economical choice for the region which is most energy efficient and more environmental friendly. The study can be used to support decisions on how natural gas resources can best be utilized as a fuel/energy resource for automobiles, and what issues need to be resolved in Chongqing. The models and approaches for this study can be applied to other regions of China as long as all the assumptions are well defined and modified to find a substitute automotive energy source and establish an energy policy in a specific region.     

长江常熟段排污口布置方案数值模拟论证研究

为合理确定常熟氟化工项目排污口布置方案 ,本文在分析长江常热段水环境特征的基础上 ,针对其复杂的水下地形和水流流场 ,建立了较为准确和实用的平面二维水流水质耦合数学模型 ,预测计算了三套方案污水对重点保护水域影响程度和范围 ,并从水流流场、水质影响评价、技术经济多角度对方案进行了比较论证 ,最终推荐污水江中排放的方案 ,为项目的工程设计和环境管理提供了科学依据。     

太阳光作用下Fenton/草酸根体系对蒽醌染料降解的试验研究

以蒽醌染料(活性艳蓝K-3R)目标污染物，在自然光源下，应用Fenton／草酸根体系的降解过程进行试验研究。结果表明，通过太阳光／Fenton／草酸根的作用，可有效地净化含染料废水。     

两级气浮--生物接触氧化工艺处理乳化液废水

采用两级所浮及生物接触氧化工艺对高浓度乳 化液含油废水处理工艺进行了研究。试验和运行研究结果表明，采用ＰＦＳ混凝剂有较好的破乳效果，二级气浮出水再经生物接触氧化工艺处理后，ＣＯＤＣｒ和油总去除率分别为９９．５％、９９．９％，各项指标均达到排放标准。     

电视机,电脑视屏与β辐射的关系

对电视机，电脑视视屏显象管壳成分进行了β放射性活性度测定及β剂量的计算，结果证明，视屏的固有电离辐射－β射线来自玻璃原材料，所产生的β剂蜈取决于原材料成分中天然放射性核素的种类含量及所用的份额。由此产生的β剂量对公众的健康不会产生有害影响。     

功能区排放负荷污染系数百分比分配法研究

在考虑了总量控制区风频、风速和各功能区位置及污染源“影响范围”等影响因素的条件下，提出了“平均下风距离”的概念，从而建立了一种更为科学、合理的总量控制区内功能区排放负荷分配新方法。通过与 总量控制A值法所提出的面积分配方法相比较，验证了新方法的合理性和有效性。     

Prenatal application of fluorescent in situ hybridization (FISH) for identification of a mosaic Y-chromosome marker,IDIC(Yp)

An amniocentesis was performed at 13.3 weeks' gestation for advanced maternal age. A mosaic sex chromosome pattern was found: of 50 cells examined, 34 had a 45,X karyotype. In 14 cells with a modal number of 46, a recognizable Y was substituted by a small non-fluorescent marker. C-banding identified the marker as an isodicentric in 12 cells. In two cells, the non-fluorescent marker appeared to be monocentric and looked like a non-fluorescent del (Yq), but could have been an isodicentric Y with inactivation of one of the centromeres. Two cells with a modal number of 47 showed two copies of the monocentric marker. Fluorescent in situ hybridization with an alpha satellite Y-specific centromeric probe confirmed the Y-chromosome origin of the markers and allowed for more accurate prenatal diagnostic information.     

模糊数学法在环境质量评价中的应用 --以天津滨海新区为例

模糊评价能有效的解决评价标准边界模糊和监测误差对评价结果的影响,具有一定的科学性、合理性.运用模糊数学法对天津滨海新区环境质量各因素进行定级评价,将各因素评价结果采用公式计数法进行二级赋权,较为客观评价了总体环境质量级别,为综合治理提供科学依据.     

阳极材料对医院污水电化学消毒处理效果的研究

分析了三维电极法处理医院污水的影响因素，探讨了阳极材料、电流密度．水力停留时间、空气流量、极水比等因素对消毒效果的影响，确定在不加化学药剂、不影响水质和低耗能条件下电化学消毒试验的最佳使用条件。结果表明，在用涂有贵金属（钌、铂、铱）氧化物的钛板作阳极，不锈钢板作阴极，电流密度为6mA／cm^2、水力停留时间为15min、空气流量为40L／h、极水比为1．0的试验条件下，消毒后污水中总大肠菌群数〈500CFU／L。电化学法消毒处理医院污水方法简单有效、运行费用低，无二次污染．处理后的污水达到国家一级排放标准（GB8978—1996）。