半干法喷射烟气脱硫试验研究

介绍了半干法喷射烟气脱硫试验 ,研究了钙硫比、雾化水量、进口SO2 浓度、湿度等主要因素对脱硫率的影响规律 ,对布袋除尘器的辅助脱硫也进行了研究。结果将有助于改进半干法脱硫技术 ,并为进一步的工业应用提供了参考数据。     

生物膜填料塔处理浓度有机废气的工业应用试验研究

工业应用试验研究表明，生物膜填料塔处理工业有机废气是可行的，当运行条件控制适当时，净化效率可保持在90％以上，能够实现达标排放，这一成果填补了我国环保工业技术领域的空白，工程技术上接近现阶段国外的技术研究水平。     

Carbon Budget Implications of the Transition from Natural to Managed Disturbance Regimes in Forest Landscapes

Land-use change from an unmanaged to a managed forested landscape in northern forests is associated with a reduction of the area annually affected by natural disturbances (wildfires and forest insects) and the introduction of harvesting as a new disturbance. This study examined the impacts of changes in the disturbance regime-the frequency and type of disturbance-on landscape-level carbon (C) content and fluxes. The Carbon Budget Model of the Canadian Forest Sector was used to assess these impacts in six representative landscapes (100,000 ha each) with a range of disturbance regimes that are characteristic of conditions in coastal British Columbia, the interior of British Columbia, and the eastern boreal forest in Canada. The model was used to simulate ecosystem C fluxes during a period of natural disturbances, a 50-year transition period during which harvesting replaced natural disturbances, followed by 150 years of harvesting. The initial landscape-level biomass C content under natural disturbance regimes in the six example landscapes was 22 to 75% of their potential maximum content which is often used as the reference or baseline case. After 200 years of forest management, the C stored in the landscape plus the C retained in forest products manufactured from harvested biomass was between 58 and 101% of the landscape C content prior to the onset of harvesting. Landscape-level ecosystem C content was found to be affected by changes in the disturbance frequency, the age-dependence of the disturbance probabilities, and the disturbance-specific impacts on ecosystem C content. The results indicate that using the potential maximum C content of a landscape as the baseline always overestimates the actual C release due to land use change. A more meaningful procedure would be to assess the actual differences in landscape-level C content between the natural and the managed disturbance regime.     

烟气脱硫(FGD)工程设计框架

在国家实施“总量控制”和“两控区”的重要环境保护政策下,烟气脱硫（ＦＧＤ）工程提到了可持续发展的议事日程,实施ＦＧＤ工程是投资大、直接经济效益不显著的环境工程。因此在全面论述实施ＦＧＤ工程的设计框架,即各设计阶段应考虑的几个重大因素和必须遵循的一系列规则基础上,着重对目前国内外主要的ＦＧＤ工艺进行了技术经济分析评述,提出选择ＦＧＤ工艺的８条重要原则。供重大决策参考和推动环境目标的实现。     

坡道式停车库空气质量及影响因素

为了解不同形式坡道式 车库中汽车尾气污染状况，对４座典型的坡道式停车库进行了空气质量监测，并同时进行车流量统计、计算和分析了信车库内污染物浓度与车流量之间的相关性，监测结果表明，停车库ＮＯｘ和ＣＯ浓度符合相应标准，而地下停车库排气Ｏｘ有超桔现象。结论是地面停车主轵成于地下停车库，地下停车库的送排风系统必须合理设置。     

含硫化合物的气相色谱检测响应特性研究

利用气相色谱（配炎焰光度检测器）对二硫化碳（ＣＳ２）、甲硫醇（ＣＨ３ＣＨ）、甲硫醚（ＤＭＳ）和二甲二硫醚（ＤＭＤＳ）４种含硫物质进行了分析检测，着重讨论了气相色谱仪的各项参数对几种含硫物质响应和分离效果的影响。结果表明：该分析对含硫气体的最小检测浓度达到ｐｐｂ级。在各项参数中，色谱柱温度在Ｎ２压力对各含硫物质响应和分离度影响最大，汽化室和检测器温度及空气压力对它们的影响相对较小。     

上海城市交通与机动车排气污染调查

上海市机动车保有量逐年增加，车辆的排气污染愈来愈严重，据调查，１９９７年机动画排放的ＣＯ，ＭＮＨＣ，ＮＯＸ和ＰＭ分别达到５８．６，９．０８，６．２０和０．２３万吨。中心城区机动车排放的ＣＯ，ＮＭＨＣ和ＮＯＸ污染物５０％以上来自于小型车，是影响上海城区环境空气质量的主要污染源。     

喷雾干燥法烟气脱硫过程的模拟试验研究

本文模拟试验研究了喷雾干燥法烟气脱硫中脱硫渣再循环利用、气体参数（ＳＯ２浓度、气速、气温）及浆液参数等对脱硫过程的影响，并分析了喷雾干燥塔内传热传质过程。本文结果将有助于改进喷雾脱硫塔的设计和操作。     

103-J合成气压缩机危险性分析

结合合成气压缩机既往发生的事故,根据辽宁省劳动局制定的工厂危险程度分级要求,对103－J合成气压缩机进行了危险性分析。     

Direct hydride derivatization of methyl- and ethylmercury chlorides in aqueous solution with KBH4

A convenient hydride derivatization procedure of methyl-and ethylmercury chlorides to volatile hydrides was reported. In sealed vials methylmercury and ethylmercury compounds in acidic aqueous solutions were converted into their volatile forms by the reaction with potassium tetrahydroborate(KBH4) and elvolved to the headspace of the vials. The gaseous analytes in the headspace were extracted and concentrated by solid phase microextraction(SPME) and injected into gas chromatography (GC) for separation and identified by mass selective detector(MS).