叶片磨损缺失对垃圾焚烧半干法脱酸塔影响的数值研究

针对垃圾焚烧半干法脱酸塔旋流器叶片磨损缺失问题,利用CFD技术进行了数值模拟,分析了无磨损情况下脱酸塔的流动情况,探讨了上部旋流叶片、下部旋流叶片和下部倾斜叶片的磨损缺失对脱酸塔流场的影响。结果表明：上部旋流叶片和下部旋流叶片的缺失对脱酸塔流场的影响较小;下部倾斜叶片磨损缺失会导致雾滴运动轨迹整体上扬、脱酸塔内部蒸发区域变大、脱酸塔整体压力损失降低等问题。     

危险废物焚烧处置废气污染物净化技术应用研究

本文介绍了当处理焚烧炉设备外排烟气中的污染物时,采用的一套综合的技术方案：“急冷+干法脱酸+活性炭吸附+布袋除尘器+喷淋脱酸塔+烟气再热技术+脱硝反应塔”。通过这种技术组合,成功净化了废气,确保了外排废气符合相关标准。这种处理方法不仅在环保方面取得了显著成果,同时也提升了企业的盈利水平,实现了生态环境保护与经济效益的双赢。     

危险废物焚烧烟气净化中脱酸工艺条件的优化控制

优化脱酸工艺参数,合理使用脱酸剂是净化烟气、严防二次污染的关键步骤。通过对危险废物焚烧烟气净化中脱酸工艺条件进行筛选和优化,探索适宜的脱酸工艺条件。     

加氢技术在环烷基润滑油生产中的应用

本文主要阐述了环烷基油的特性,并详细叙述几道加氢技术的应用情况,主要有加氢脱酸、中压加氢处理、临氢降凝和高压全氢型技术。     

焚烧烟气中二噁英类控制技术研究进展

焚烧烟气中二噁英是制约垃圾焚烧技术发展的关键性问题。文章描述了烟气中二噁英的形态分布,并综述了烟气中二噁英控制技术的研究进展,指出了有待进一步研究的问题;重点阐述了活性炭吸附技术,比较了传统的利用活性碳吸附技术的净化工艺与双层滤料颗粒床+活性炭+布袋除尘脱酸除二噁英一体化新工艺。     

加氢脱酸处理联合装置的环保改造

克拉玛依石化公司加氢脱酸处理联合装置由30×104t/a加氢脱酸装置和8.5×104t/a加氢处理装置组成。30×104t/a加氢脱酸装置于1993年3月投产,8.5×104t/a加     

“半干法+干法”烟气脱酸组合工艺应用于生活垃圾焚烧工程案例分析

针对目前生活垃圾焚烧厂烟气排放标准日益提高,介绍了"半干法+干法"烟气脱酸组合工艺,并对此工艺进行了案例分析,提出"半干法+干法"烟气脱酸组合工艺是生活垃圾焚烧工程中一种较为理想的烟气脱酸工艺。     

垃圾焚烧厂烟气中酸性气体干法净化实验研究

本文通过实验研究了不同酸性气体初始浓度下,碳酸氢钠、氢氧化钙消耗量与烟气中酸性气体排放浓度的关系,以确定干法脱酸中药剂的最合理的使用方式和投放量,同时验证了布袋除尘器在干法脱酸工艺中的重要作用。     

某垃圾焚烧厂烟气净化工艺选择分析研究

主要介绍了目前国内外常用垃圾焚烧烟气净化工艺,结合某垃圾焚烧厂实际情况,对酸性气体净化工艺、半干法脱酸塔工艺、脱硝工艺等工艺方案进行了比选分析,最终确定采用带SNCR脱硝系统的"半干法循环流化吸收反应塔脱酸+活性炭喷射+布袋除尘器除尘"组合工艺对焚烧烟气进行净化,可同时脱氮、脱酸、除尘、除二噁英和重金属,污染物排放能满足《生活垃圾焚烧污染控制标准》(GB 18485-2014)的要求.     

酸化油水解废水脱酸处理工艺研究

酸化油是生产生物柴油的原料,其生产过程中产生的水解废水有机物含量高且具有强酸性,直接排放会严重污染环境。因此,对酸化油水解废水处理工艺进行研究有重要意义。通过对酸化油水解废水脱酸处理的条件及影响因素进行研究,并通过L9(34)正交实验确定了脱酸的最佳工艺条件。pH值为10,搅拌时间为15 min,温度为30℃是脱酸处理的最佳条件。     

燃煤电厂烟气脱硫技术及其主要工艺

简要介绍了我国二氧化硫的排放及其污染现状、燃煤电厂湿法、半干法、干法、可回收工艺和联合SO2／NOx工艺等五类烟气脱硫（FGD）技术及其主要的工艺，并对我国烟气脱硫技术的发展进行了探讨，指出我国烟气脱硫技术的发展应走国产化的道路，在具体的脱硫工艺的选择上应具体问题具体分析。     

Higher education for sustainability by means of transdisciplinary case studies: an innovative approach for solving complex,real-world problems

Sustainable development and the interplay between its ecological, social, and economic dimensions can be regarded as a highly complex task. As a logical consequence, educating for sustainable development also has a complex character. Traditional unidirectional educational processes are only of very limited use when educating for sustainable development: Firstly, the initial state of the considered system (case) cannot be described precisely; secondly, the target state of the system is also not sufficiently known; and thirdly, the process between initial state and target state and potential barriers that might have to be passed are also not exactly known. Pure analytically based solutions are therefore, not available; a dynamic mutual learning process is required instead.Mutual learning based on real-world cases requires an interdisciplinary point of view, transdisciplinary problem-solving processes, and self-regulated and self-responsible learning. Consequently, besides analytical capabilities and deterministic process planning, dealing with the complex problem of sustainable development requires creativity, social competencies and specific communication skills in order to cope with the dynamic change that characterizes the developments in most facets of society and nature.A “vassal” that puts together all these requirements towards an educational process for sustainable development can be a transdisciplinary case study approach: In Austria this was first applied by the University of Graz within the “Erzherzog Johann case study”. In order to educate for sustainable development, the students had to work on a “real-world problem”, the development of possible ways to achieve ecologically, economically and socially sustainable development of the abandoned iron ore mining region of Eisenerz in the middle of Austria. As a core characteristic of this “real-world” case study, besides the cooperation among students, teachers and researchers of the university, the interaction with stakeholders of the region was of outstanding importance.Within transdisciplinary case studies students, teachers and researchers have to abandon the role paradigm of the teacher as provider of information and the students as “consumers” of the provided information. Knowledge and competences imparted in university classes need to be applied simultaneously within the real-world case to allow a demand-driven process of mutual learning in which students are self-responsible and decide which tools to apply in the process of attaining sustainable development. Because of the dynamics of this process, students experience the process of sustainable development instead of purely memorizing its characteristics. The process of educating for sustainable development and practical applied sustainability therefore, becomes sustainable.     

Utilising renewable resources economically: new challenges and chances for process development

In recent years a considerable increase in interest in the development of processes based upon renewable resources has occurred. One reason for this development is the call for more sustainable and environmentally benign production processes and products.Increased utilisation of renewable resources, however, poses new challenges to chemical and process industries. These challenges arise from increased competition for renewable but still finite resources, the de-centralised production of the renewable resources and the complexity of the raw materials. These new challenges require new approaches to process development, as production systems become more complex and interlinked, logistical considerations become increasingly important and new technological solutions must be adapted to local and regional settings. As the structure of complex production systems must be newly developed and optimised, process synthesis will play an increasingly important role in process development.     

北京冬季重污染过程黑碳气溶胶的飞机观测

利用空中国王飞机平台搭载单颗粒黑碳光度计（SP2）针对北京2016年12月冬季一次污染过程进行了连续观测,阐述了污染发生、发展和消散过程中的黑碳（BC）气溶胶质量浓度、粒径分布和混合状态的变化特征.结果表明,此次污染过程是以PM_2.5污染为主的霾污染过程,最大值为432μg/m³.NO₂、SO₂和CO等气态污染物浓度经过3次污染积累阶段,为PM_2.5最终爆发增长提供了物质基础.静稳的大气条件为PM_2.5爆发增长提供了动力条件.污染发展过程中BC气溶胶先在地面累积增加,然后向高空传输;清除过程则是高空先被移除,低层缓慢降低.污染发展过程中北京地区黑碳气溶胶在边界层（PBL）浓度变化为先升高后减小,平均浓度为3.45μg/m³,质量中值直径（MMD）范围在190~220nm.随着污染过程的发展,气溶胶迅速老化,PBL内的BC老化比例在一天内可从27%增加到了51%,老化过程使得PM_2.5质量浓度爆发增长.污染过程中BC在边界层的垂直演变导致大气加热率发生变化,有利于逆温的维持和发展,加剧了污染物过程.     

20世纪科尔沁的农业开发与土地利用变化

科尔沁现代农业的雏形出现于清代早期。它的出现和发展打破了该区延续几个世纪的纯游牧状态,使得科尔沁地区逐渐演变成今天的农牧交错区。通过分析科尔沁近代农耕的出现及其扩展过程,尤其从它20世纪的发展历程可以发现,20世纪是垦殖真正推进到科尔沁草原的时期,而垦殖的主要扩展则发生在清代末期的土地丈放和建国初期的开荒时期。大面积土地的沙漠化成为该区20世纪最显著的景观变化,“科尔沁草原”被改变成“科尔沁沙地”。     

污水除磷技术的研究与发展

介绍了废水除磷技术的常用方法,并阐述了工艺发展现状及污水除磷技术的最新发展动向.提出以反硝化除磷教术为基础的双污泥工艺是一种很有前景的处理工艺,磷的回收利用是除磷技术发展的必然趋势.以实现可持续发展的除磷技术为目的,并对今后的研究方向作出展望.     

曝气生物滤池在小区污水处理中的应用

城市化的快速发展,使人们越来越关注居住环境的质量,其中小区的水环境质量更是人们关注的重点.介绍了曝气生物滤池(BAF)工艺的原理以及该工艺在小区污水处理中的研究发展情况,为小区污水处理提供了一种可供选择的工艺.     

基于GIS技术的环境信息系统在我国的发展及展望

介绍了基于GIS的环境信息系统及其在我国的发展过程,并把这个发展过程分为四个阶段:探索阶段、技术成熟阶段、两极分化阶段、市场化阶段;还介绍了两个重要的环境信息系统:中国省级环境信息系统和中国环境监理信息系统。最后,本文展望了中国环境信息系统的发展方向。     

生物接触氧化法的研究现状分析

生物接触氧化法具有运行成本低,处理效果稳定,出水水质好等优势,被广泛的用于处理生活及工业污水中。在大量的相关资料基础上,阐述了生物接触氧化法的基本原理和工艺特点。分别介绍了生物接触氧化法在国内外的研究现状,为该技术的进一步开发提供参考。生物接触氧化法已经成为中国污水处理主要发展的技术之一,展望了其研究和发展的方向。     

电化学法测定化学需氧量的研究及应用动态

总结了近年来的电化学法测定化学需氧量的研究进展及在线自动监测领域的应用现状。介绍了电化学法快速、准确和低耗、无二次污染的特点,指出了电化学法是实现化学需氧量快速检测和在线自动监测的发展方向之一,具有广阔的应用前景和深入研究的价值。