1) improvement of chemical purification technology
化学净化技术的改进
2) technology improvement and optimization
技术改进和优化
3) purifying technology
净化技术
1.
The application of super wet purifying technology of particulate fume in treatment of black fume in Songming county shows that the technology is of the characteristics of simple engineering, and convenient operation, and stable running and distinct effects.
"超级微粒烟尘湿式净化技术"在嵩明黑烟治理中的实践表明,此技术工艺简单,操作方便,维护简便,运行可靠,效果明显,与其它技术相比,投资可减少60%,运行费用则只有一半。
4) purification technology
净化技术
1.
This paper described the status of purification technology of zinc sulphate solution in China,analyzed the existing problems,and also discussed the developing direction of this technology.
介绍了国内硫酸锌溶液净化技术的现状,分析了存在的问题,指出了该技术的发展方向。
2.
A purification technology of the nickel-base DZ125 alloy revert was studied in the industrialized vacuum induction furnace.
在工业化生产型真空感应炉中,对定向高温合金DZ125返回料净化技术进行研究,用电子束纽扣法测定夹杂数量,并对净化后的100%返回料锭和常规工艺生产的100%新料锭在纯净度、化学成分、力学性能和铸造性能方面进行对比。
3.
Current situation and progress in the purification technology of air pollutant in highway tunnel were reviewed,including the application of electrostatic dedusting and nitrogen dioxide purification technology,and the emergence of the catalytic purification project for carbon monoxide,hydrocarbon compound,nitrogen oxides,and electrostatic dedusting.
综述了国内外道路隧道空气污染物治理技术的现状及研究进展,包括静电除尘净化技术的应用、二氧化氮净化技术的应用,静电除尘、一氧化碳、碳氢化合物和氮氧化物综合治理技术方案的提出。
5) purification technique
净化技术
1.
The history development and present status of the coke-oven gas purification technique at home and abroad are summarized, and applicable and extendible new technique of coke-oven gas purification as well as theirs application emphasis also are briefly introduced.
综述了国内外焦炉煤气净化技术的历史沿革、发展与现状,并简要介绍了可推广应用的焦炉煤气净化新技术及其应用重点。
2.
In addition,their advantages and disadvantages were compared in detail,then these application and reviews different purification techniques at home and abroad were analyzed,its prospect was discussed at last.
文章综述了当前用于室内空气污染的现状,特点及其危害,阐述了室内污染的主要污染物和污染源,综述了当前国内外主要的室内空气净化技术,并详细阐述了各净化技术的优缺点、应用以及在国内外的最新发展情况,最后就室内空气净化技术的发展趋势进行了展望。
6) purification
[英][,pjurifi'keiʃən] [美][,pjʊrəfə'keʃən]
净化技术
1.
Review of Non-pollution Culture And purification of Seawater Shellfish.;
海产贝类无公害养殖、净化技术研究现状
补充资料:化学净化
分子式:
CAS号:
性质:通过化学作用使环境中的污染物转化使其浓度降低或消除的过程。这类化学作用包括氧化和还原、化合和分解、吸附、凝聚、交换、络合等。影响化学净化的环境因素有酸碱度、氧化还原电位和温度等。污染物本身的形态、化学性质和组成对化学净化也有很大影响。如温度升高可加速化学反应,在温热环境中有利于有机污染物的分解;酸性环境中金属离子活性增强,有利迁移;而碱性环境中易形成氢氧化物沉淀而减少环境中的有害金属离子。因自然界存在的化学作用而使污染物降解或消除的过程,称为化学自净(chemical self-purification)。
CAS号:
性质:通过化学作用使环境中的污染物转化使其浓度降低或消除的过程。这类化学作用包括氧化和还原、化合和分解、吸附、凝聚、交换、络合等。影响化学净化的环境因素有酸碱度、氧化还原电位和温度等。污染物本身的形态、化学性质和组成对化学净化也有很大影响。如温度升高可加速化学反应,在温热环境中有利于有机污染物的分解;酸性环境中金属离子活性增强,有利迁移;而碱性环境中易形成氢氧化物沉淀而减少环境中的有害金属离子。因自然界存在的化学作用而使污染物降解或消除的过程,称为化学自净(chemical self-purification)。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条