石化行业竣工环保验收中废气监测研究

在石化行业建设项目竣工环境保护验收中,废气监测是一项重要的监测内容。验收监测时要按照相应标准和大气导则设置相关监测点位。根据石化行业废气排放的主要来源和特点,给出有组织排放废气和无组织排放废气监测布点方法。但在实际布点中由于存在一些客观的原因,使得废气监测布点不能按照相应的标准和导则规范或是其他的技术文件进行。针对布点过程中存在的相关问题,提出废气验收监测时应注意的问题并给出相关建议。     

非环境专业在校大学生环境意识调查分析研究——以南通市为例

以问卷调查形式了解南通市非环境专业在校大学生环境意识现状,并针对本次调查所暴露的问题,提出从校园环境建设与管理、课程设置、课堂教学、学生的社会实践活动四个方面着手全面培养在校大学生的环境素质,建议多方面多渠道补充非环境专业在校大学生的环境保护知识,引导他们主动积极地参与环境保护行动,提高他们的环境素质。以期为更好的开展在校大学生环境教育提供一定的依据。     

屏蔽室环境工况对传导骚扰测量的影响

建立工况可调屏蔽室：安装恒温恒湿系统，实现温度在（10～35）℃连续可调、测量空间温度场均匀度和最大波动均〈10℃，湿度控制在（30～60）％范围。利用工况可调屏蔽室，研究温湿度对传导骚扰测试结果的影响：选取电动工具、空调（变频、定频）、除湿机等产品，研究不同产品传导骚扰电压与谐波随环境温湿度的变化规律，发现骚扰电压和谐波测量值随环境温度的变化有很大的不同，试验证明这些产品的传导骚扰电压和谐波测量值明显随着环境温度而变化。研究结果对提高，实验室电磁兼容测试水平具有良好的实用价值，对于相关标准的制修订具有参考价值。     

Effect of Environmental Setting on Sediment, Nitrogen, and Phosphorus Concentrations in Albemarle-Pamlico Drainage Basin, North Carolina and Virginia, USA

/ Environmental settings were defined, through an overlay process, as areas of coincidence between categories of three mapped variables\Mland use, surficial geology, and soil drainage characteristics. Expert judgment was used in selecting factors thought to influence sediment and nutrient concentrations in the Albemarle-Pamlico drainage area. This study's findings support the hypothesis that environmental settings defined using these three variables can explain variations in the concentration of certain sediment and nutrient constituents. This finding underscores the importance of developing watershed management plans that account for differences associated with the mosaic of natural and anthropogenic factors that define a basin's environmental setting. At least in the case of sediment and nutrients in the Albemarle-Pamlico region, a watershed management plan that focuses only on anthropogenic factors, such as point-source discharges, and does not account for natural characteristics of a watershed and the influences of these characteristics on water quality, may lead to water-quality goals that are over- or underprotective of key environmental features and to a misallocation of the resources available for environmental protection.KEY WORDS: Environmental setting; Water quality; Watershed management; Nutrients; Sediment     

噪声监测过程中的点位布设问题

通过石家庄市环境监测中心近年来的一些噪声监测实例来深入探讨噪声监测过程中的点位布设问题,并指出相应的注意点和改进方法。     

液化石油气罐车卸车作业事故——安全阀意外开启泄压原因调查

为了提高液化石油气罐车采用压缩机卸车法作业的安全性,通过对某液化石油气罐车卸车作业时其顶部安全阀意外开启泄压的事故原因进行调查,查明了导致罐车顶部安全阀意外开启泄压的直接原因是操作工人违章作业导致储罐与罐车罐体内气相液化石油气压差安全裕量严重不足所致。同时探讨了在夏季高温环境采用压缩机法对液化石油气罐车卸车作业时液化石油气罐车顶部安全阀整定值设定、液化石油气储罐与罐车罐体内气相液化石油气压差安全裕量的重要性。     

污泥回流对平流式沉淀池去除率的影响分析

针对目前的沉淀理论没有考虑回流污泥量将影响颗粒去除效率这一问题,在深向混合沉淀理论的基础上,得出了考虑回流比的非理想沉淀模型.根据所得模型分析了在平流沉淀池中吸泥机带走的污泥回流量对颗粒沉降的影响.并以某污水悬浮物的剩余量与沉速关系曲线为例进行分析.结果表明,在不考虑污泥回流的情况下,颗粒的去除率为72.8%;考虑污泥回流时,当回流比由0.5变化到3.0时,颗粒的去除率则由71.1%递减到50.9%,均小于不考虑污泥回流时的去除率,且回流比为3.0时,颗粒的去除率为50.9%,相对于未考虑回流污泥时的去除率降低了30%.由此可见,污泥回流量使悬浮颗粒的去除率小于无回流量时的去除率,且随着回流比的增大颗粒沉降效率将显著减小.     

铁路特长隧道火灾应急救援问题研究

以长27.53km的向莆铁路戴云山隧道为研究对象,提出特长隧道的火灾防灾救援总原则,并从其结构、设计、安全管理等方面论述,重点针对火灾防灾救援隧道"定点"设置问题,从设置定点的必要性、定点位置、长度、定点的引导通道、引导通道与主洞的联络横通道、定点处的渡线设置等几方面进行研究,确定了戴云山特长隧道定点设置方案以及定点内的固定消防设施、通风排烟、紧急警报、诱导避难等设备设置,对促进完善我国铁路特长隧道的火灾防灾救援和安全疏散规划管理等具有重要的实践意义。     

青岛理工大学安全工程专业课程体系设置模式

介绍了我国安全工程专业发展概况、存在的问题及青岛理工大学安全工程专业现状.重点介绍了青岛理工大学安全工程专业课程体系设置情况,提出了2006年安全工程专业课程体系设置调整的构想.     

“Consent and Consensus in Policies Related to Food – Five Core Values”

When formulating a policy related to food in a heterogeneous context within a nation or between nations, oppositional positions are more or less explicit, but always have to be overcome. It is interesting to note, though, that such elements as culture and religion have seldom been the focus in discussions about methods of decision-making in food policy. To handle discrepancies between oppositional positions, one solution is to narrow differences between partners, another to accept one partner or position as dominant. In a solid and lasting policy, any of these options has to be agreed upon by all the partners involved. In this article, I argue that context sensitivity and a shared picture of the situation are necessary bases for a solid food policy. Two methods for policy discussion are elaborated on and religious slaughter is given as an example of a heterogeneous setting with strongly diverging ideals. Several aspects have to be respected from the outset, such as culture, religion, and value systems. This condition is partly met in a model of informed consent and in a consensus model. The informed consent model is regarded as insufficient, because it lacks both methods of dealing with hierarchies and the goal of finding a shared and nuanced picture of the situation. A consensus model meets these tasks but might on the other hand, among other things, be too difficult to follow and to administer. For both models, some difficulties with justification of decisions arise. Five essential elements emanating from a combination of these models are suggested as a basis for a decision process regarding food policies: respect for each discussion partner, context sensitivity, respect for arguments including emotions, a shared picture of the situation, and finally relating theory and practice.