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1.
探讨了烟气冷凝器的关键性能指标,提出烟气冷凝器脱水率、SO2组分丢失率和烟气出口露点温度等关键参数的计算公式,提出了适合不同工况条件下烟气冷凝器选型的依据和方法,为解决冷-干直接抽取法CEMS所面临的湿法脱硫后的高湿、低浓度SO2,及如何准确、客观地反映污染排放的现实问题,提供了一个合理的解决方案。  相似文献   

2.
《中国环保产业》2004,(8):44-44
由浙江慈溪市东方科技开发有限公司开发、浙江省环保局推荐的DS-含SO2烟气处理技术适用于有色金属冶炼厂低浓度SO2(SO2含量低于3%)的烟气处理和钢铁烧结厂含SO2烟气处理。主要技术内容一、基本原理该技术是以对SO2有吸收能力的工业废弃渣调制成的料浆为吸收剂,在多相反应器内与烟气中的SO2反应,生成相应的亚硫酸盐和硫酸盐,硫被固定下来,从而达到从烟气中脱除SO2的目的。所生成的盐有可溶的和难溶的,对于难溶的可以直接过滤分离,对可溶性的需加碱性物质(Ca(OH)2、CaO)调整pH值,使其以氢氧化物形态沉淀下来,最后过滤分离。二、工艺…  相似文献   

3.
《中国环保产业》2009,(1):68-68
由福建龙净环保股份有限公司开发的烟气循环流化床干法脱硫装置,适用于电力、冶金、建材、化工、轻工等行业SO2、SO3、HF、HCl等有害气体治理以及烟气粉尘捕集。  相似文献   

4.
介绍了我公司烧结烟气特点、SO2的来源,并根据国内外烟气脱硫技术现状,提出了烧结烟气脱硫的技术要求。  相似文献   

5.
低浓度Fe(Ⅱ)和Mn(Ⅱ)催化氧化脱除烟气中SO2的研究   总被引:5,自引:0,他引:5  
许丽  苏仕军 《四川环境》2005,24(2):27-31
生物法烟气脱硫是一种新的脱硫工艺,不仅可以较好地解决SO2废气对环境的污染问题,而且将烟气脱硫与单质硫的生产联系在一起,能带来一定的经济效益。将生物法烟气脱硫过程分成两个阶段:SO2的吸收过程和含硫吸收液的生物脱硫过程。本文重点研究了第一阶段的SO2吸收过程。考察了温度、pH值对SO2的吸收的影响,水溶液中低浓度的Fe(Ⅱ)和Mn(Ⅱ)对SO2的催化氧化,以及低浓度的Fe(Ⅱ)和Mn(Ⅱ)协同催化氧化SO2,并初探了引入甲醇和亚纳米SiO2颗粒作为添加剂对脱硫的影响及其机理。  相似文献   

6.
《中国环保产业》2014,(2):70-70
正由光大环保能源(苏州)有限公司开发的生活垃圾焚烧废气脱酸技术,适用于生活垃圾焚烧发电厂烟气净化。主要技术内容一、基本原理以Ca(OH)2为吸收剂,用高压风将其喷入烟道内,Ca(OH)2与烟气中HCl、SO2等酸性气体发生中和反应,未反应的Ca(OH)2随烟气进入除尘器内将继续与HCl、SO2等酸性气体反应,然后被捕集下来,达到脱除  相似文献   

7.
为使某焦化企业的焦炉烟气污染物排放数值符合GB 16171—2012中特别排放值要求,在烟气外排前新建一套"选择性催化还原(SCR)脱硝+氨法脱硫"系统。针对企业情况,确定了"脱硝—换热—脱硫"的基本方案及具体工艺流程。改造后运行数据表明,利用该系统进行烟气脱硫脱硝后,烟气中SO2、NOx及颗粒物排放达标,SO2、NOx减排率可达90%以上。  相似文献   

8.
《中国环保产业》2009,(9):62-63
由中环(中国)工程有限公司开发的大型火力发电机组湿法烟气脱硫系统技术(OI^2-WFGD),适用于大中型燃煤发电机组的烟气脱硫工程。包括:火电厂烟气SO2减排整体解决方案设计、工程总承包全过程的技术支撑、FGD关键设备的开发和国产化制造。  相似文献   

9.
烟气脱硫是实现SO2减排的重点方向,本文对双碱法与氧化镁法烟气脱硫工艺原理、特点、经济技术指标进行了阐述,并对两者进行了比较,提出了选择这两种烟气脱硫工艺的建议。  相似文献   

10.
《中国环保产业》2011,(12):63-63
由江苏新世纪江南环保有限公司开发的氨肥法烟气脱硫技术,适用于烟气脱硫净化处理。主要技术内容一、基本原理氨肥法烟气脱硫是指以氨基物质(液氨、氨水、碳铵、尿素等)作吸收剂,脱除烟气中的SO2并回收副产物硫酸铵化肥的烟气脱硫工艺。原料来自化工企业  相似文献   

11.
我国经济处于高速增长期,建设日新月异,中小城市的光污染问题日趋明显,防治显得十分重要。文章以中山市城区为例,对道路照明、建筑照明、广告照明、绿化照明,以及玻璃幕墙反射等光污染情况进行了调研和评价。根据中山市城区的光污染情况,从制定和完善光污染防治法规体系、加强规划和宏观管理、提高公众参与力度和监督力度、加大人才培养和政策扶持力度、加大清洁生产推广力度以及实施照明设计单位资质认证等多方面提出了对光污染的防治对策。  相似文献   

12.
搞好大学生思想政治工作对促进学校的建设工作意义重大.针对当前我院迎评促建工作中的学生思想上存在的误区,应进一步加强宣传、加强思想政治工作队伍建设以及不断总结过去和创新现在,根据当前迎评促建工作的实际,采取一定措施.  相似文献   

13.
14.
宋玉银 《四川环境》1992,11(4):64-67
城市固体废弃物是人们在工业生产活动、生活活动及商业活动中所产生的固体废物,这种废物随着国民经济的发展、人口的增长、人民生活水平的提高,数量不断增加。它破坏了市容,污染环境,给人民健康带来了极大的危害,因此,需加以处置和处理。本文将系统地介绍现阶段国内外城市固体废弃物的现状及处理技术,并针对我国国情,提出合理化的处理方案。  相似文献   

15.
塔里木河上游及源流区草原荒漠化及其防治研究   总被引:3,自引:0,他引:3  
加强生态环境保护和建设是西部大开发的战略重点。针对塔里木河流域环境恶化、草地开发利用失衡、草原荒漠化日趋严重的问题,提出具体规划和综合治理方案。  相似文献   

16.
文章分析了油气能源现状、油气开发与环境的关系、油气开发与环境安全的关系,油气开发中的环境保护对策与环境监理。得出:油气开发既要做到和谐生产,又要保护环境;在油气开发中,对环境有影响的应加大修复力度,采取相应的环境保护措施,确保有效、长效的环境保护目标。  相似文献   

17.
ABSTRACT

Smart and eco-cities have become important notions for thinking about urban futures. This article contributes to these ongoing debates about smart and eco-urbanism by focussing on recent urbanisation initiatives in Asia. Our study of India’s Smart Cities Mission launched under the administration of Narendra Modi and China’s All-In-One eco-cities project initiated by Xi Jinpin unfolds in two corresponding narratives. Roy and Ong’s [2011. Worlding Cities: Asian Experiments and the Art of Being Global. Oxford: Wiley-Blackwell] “worlding cities” serves as the theoretical backdrop of our analysis. Based on a careful review of a diverse set of academic literature, policy and other sources we identify five process-dimensions for analysing the respective urban approaches. We show how the specific features of China’s and India’s urban focus, organisation, implementation, governance and embedding manifest both nations’ approaches to smart and eco-urbanism. We argue that India’s Smart City Mission and China’s All-in-One project are firmly anchored in broader agendas of change that are set out to transform the nation and extend into time. The Indian Smart City Mission is part of a broader ambition to transform the nation enabling her “smart incarnation” in modernity. Smart technologies are seen as the key drivers of change. In China the framework of ecological civilisation continues a 5000-year historical tradition of civilisation excellence. By explicitly linking eco-urbanism to the framework, eco-cities become a means to enact ecological civilisation on the (urban) ground.  相似文献   

18.
本文从国家实施可持续发展战略出发,分析了环境统计工作存在的问题。提出了可持续发展的环境,资源统计与核算的新概念。  相似文献   

19.
During the past 25 years the bauxite and alumina industry has grown threefold creating major change in the industry structure and reducing the dominance of the majors. Australia has emerged as the leading producer with a major third party alumina market developed principally by Alcoa of Australia. Future growth while, less dramatic, is likely to be substantial requiring US$50 billion to fund new projects which will be concentrated in developing countries with large bauxite reserves and developed infrastructure.  相似文献   

20.
There is continuing concern over potential impacts of widespread application of nutrients and pesticides on ground- and surface-water quality. Transport and fate of nitrate and pesticides were investigated in a shallow aquifer and adjacent stream, Cow Castle Creek, in Orangeburg County, South Carolina. Pesticide and pesticide degradate concentrations were detected in ground water with greatest frequency and largest concentrations directly beneath and downgradient from the corn (Zea mays L.) field where they were applied. In almost all samples in which they were detected, concentrations of pesticide degradates greatly exceeded those of parent compounds, and were still present in ground waters that were recharged during the previous 18 yr. The absence of both parent and degradate compounds in samples collected from deeper in the aquifer suggests that this persistence is limited or that the ground water had recharged before use of the pesticide. Concentrations of NO(-)(3) in ground water decreased with increasing depth and age, but denitrification was not a dominant controlling factor. Hydrologic and chemical data indicated that ground water discharges to the creek and chemical exchange takes place within the upper 0.7 m of the streambed. Ground water had its greatest influence on surface-water chemistry during low-flow periods, causing a decrease in concentrations of Cl(-), NO(-)(3), pesticides, and pesticide degradates. Conversely, shallow subsurface drainage dominates stream chemistry during high-flow periods, increasing stream concentrations of Cl(-), NO(-)(3), pesticides, and pesticide degradates. These results point out the importance of understanding the hydrogeologic setting when investigating transport and fate of contaminants in ground water and surface water.  相似文献   

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