气体悬浮吸收干法脱硫工艺

论述气体悬浮吸收（GSA）干法脱硫工艺过程、原理及特点,对该工艺在国内外实际工程中的应用作了介绍。     

植被净初级生产力对气候变化的响应研究——以黄土高原燕沟流域为例

Vegetation net primary productivity (NPP) is a sensitive indicator to characterize the response of terrestrial ecosystems to the climate change. Projections of the NPP changes of the Loess Plateau under future climate scenarios have great significances in revealing the interactions among terrestrial ecosystems and climatic systems, as well as instructing future vegetation construction of this region. Here, we carried out a case study on the Yangou watershed in the Loess Plateau. Using the vegetation-producing process model (VPP) established for such small watersheds, we simulated the NPP of the Yangou watershed under different scenarios of climate changes. The results showed that the NPP significantly increased with the precipitation increasing and evidently decreased with the temperature increasing where the climate change occurred in the whole year or in the summer half year. However, where the climate change occurred in the winter half year, the increased precipitation had little effect on the NPP, and the increased temperature significantly reduced the NPP. There were clear differences among the response sensitivities of different vegetation types with trees and shrubs were more sensitive to the changes in temperature and precipitation than crops and grasses. Currently, the most favourable climate change scenario to the NPP in the Yangou watershed was T0P15 under which the precipitation increased by 15% and the temperature did not changed, in the whole year; in the meantime, the most unfavourable climate change scenarios was T2P-15 under which the precipitation declined by 15% and the temperature increased by 2℃, in the whole year.     

车辆限行对道路和施工扬尘排放的影响

采用降尘法对道路和施工扬尘排放进行连续监测,通过限行之前和限行期间数据分析,研究了“好运北京”体育赛事期间机动车交通限行措施对道路和施工扬尘的消减情况、道路和施工扬尘对北京大气环境颗粒物的贡献率、道路和施工扬尘源占本地颗粒物排放总量的比重.结果表明,车辆限行措施对降低道路和施工扬尘的效果明显;环路限行期间降尘量平均值为0.27 g·(m²·d)^-1,限行之前1个月和限行之前7d降尘量平均值为0.81和0.59 g·(m²·d)^-1,主干道和次干道限行期间降尘量平均值为0.21 g·(m²·d)^-1,限行之前1个月和限行之前7 d降尘量平均值为0.54和0.58 g·(m²·d)^-1,道路降尘量下降了60%～70%;限行期间民用建筑施工降尘量平均值为0.27 g·(m²·d)^-1,限行之前20 d为1.15 g·(m²·d)^-1,限行期间公用建筑施工降尘量平均值为1.06 g·(m²·d)^-1,限行之前20 d为1.55 g·(m²·d)^-1,施工降尘下降30%～47%;道路和施工扬尘是北京市颗粒物污染的主要来源,其对环境PM₁₀的贡献率为21%～36%;当本地污染源PM₁₀排放量占环境总量的50%和70%时,道路和施工扬尘PM₁₀排放量分别占本地污染源的42%～72%和30%～51%.     

山西省五台山区土壤氟元素的环境背景值及分布规律

对山西省五台山区垂直土壤主要土类的氟元素背景值进行了调查与分析，揭示了五台山区土壤氟元素区域背景的分布特征和变化趋势。结果表明：五台山区土壤氟背景值略高于我国平均水平，多数土壤Ｂ层含氟量最高。     

厦门港重油污染源的脲重结晶正构烷烃指纹鉴别

1989年夏厦门港发生重油泄漏入海事件,为查清污染情况,应用脲重结晶正构烷烃指纹鉴别法进行油种鉴定。结果发现港区重油污染并非全部来源于工厂溢油,而另有两个污染源。同时也证明脲重结晶正构烷烃指纹鉴别法对重油类污染尤为适用,且方法简单,判断准确。     

神东矿井污水的开发与利用

神东矿区地处荒漠地区，水资源非常缺乏，煤炭的开发不可避免地破坏了地下水资源。因此，水资源及其利用成为制约矿区建设的关键因素之一。针对这种状况，在采用先进技术对生活污水进行处理的同时，结合矿井污水和采空区及其充填物的特点，重点开发了矿井污水采空区过滤净化技术，为矿井污水的净化与利用开辟了一条新途径。     

西北国棉五厂为女工保护做实事

西北国棉五厂重视女工保护工作,近年来做了几件实事,改善了劳动条件,受到女工们的称赞。 厂里在技术改造的同时,认真进行了棉尘和噪声治理。全厂普遍安装了地下吸尘排风装置,增加了空调套数,安装了高空自动巡回清洁器,共实施了38项技术措施。经过治理,车间空气中棉尘含量已降到国家标准以下。厂里还对强力空调送风机等高噪声设备进行隔音、消音治理,并拨款4万元,和西安交通大学联合,开展了有梭织机降噪治理的课题研究。 厂里对接触皮件、油漆等有毒有害气体的工种,采取积极防治措施。把织布车间的皮工房和细纱车间的纱管房搬离人员密集区,增…     

2000m~3丙烯球罐壳体水压试验的可靠性分析

随着大型化、高参数化球罐的广泛使用,可靠性设计方法在球罐设计中起着日益重要的作用。应用有限元分析软件ANSYS的概率设计功能,将压力载荷、球壳壁厚、壳体直径、屈服极限作为随机输入变量,对球罐壳体水压试验进行可靠性分析,获得了壳体的可靠度、壳体应力分布对各随机变量的灵敏度等参数,为大型球罐的设计提供理论依据。