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1)  preoxidizing method
预氧化法
1.
The features of rapid gas nitriding process with preoxidizing method was analyzed.
分析了预氧化法气体快速渗氮工艺特点 ,通过与低温铁素体氮碳共渗在球墨铸铁曲轴中的应用效果进行比较 ,认为该工艺渗氮速度快 ,效果理
2)  alkaline leaching pretreatment
碱法预氧化
1.
Adopting flotation,concentrate toalkaline leaching pretreatment and cyanidation replaced the cyanidation and CIL,and only adding one set of flotation equipment,the gold recovery rate can be improved from 60% to 81%.
某金矿采用浮选—精矿加压碱法预氧化—氰化提金工艺取代原矿加压碱法预氧化—氰化提金工艺,仅增加一套浮选设备,使金回收率由原来60%提高到81%,年可多回收黄金32kg,创造效益213万元。
3)  preozonation
臭氧预氧化
1.
Advanced treatment of sewage secondary effluent by preozonation/biological aerated filter(BAF);
臭氧预氧化/曝气生物滤池污水深度处理特性研究
2.
The objective was to determine: the contribution of algae cells and algae extracellular organic matter(EOM) to the disinfection by-products formation potential(DBPFP),and the effects of preozonation including ozone dosage and preozonation time on DBPFP of algae cells and EOM and mechanism of these effects.
以处于对数生长期后期的悦目颤藻为研究对象,研究了藻细胞及胞外分泌物对氯化消毒副产物生成势(DBPFP)的贡献,以及臭氧预氧化对DBPFP的影响规律,即不同臭氧投量及预氧化时间对DBPFP的影响,并探讨臭氧预氧化控制消毒副产物生成势的原因。
3.
Experiments were conducted with preozonation-floating filter and ozone-DAF-floating filter for treatment of water from Queshan Reservoir.
预臭氧-浮滤池工艺试验结果表明,臭氧预处理对浊度去除影响不大;臭氧预氧化对UV254的去除效率很高,平均去除率为76。
4)  ozone preoxidation
臭氧预氧化
1.
Using ozone preoxidation process before the biochemical treatment of the wastewater cangreatly improve the removal rate of COD,decrease UV254 and chroma,and improve the biodegradability of the wastewater at the same time,furthermore,its products during the treatment processhas only a little influence on the environment;therefore,as a pretreatment method,it is very effective.
在废水生化处理前进行臭氧预氧化,可以极大提高COD的去除率,降低UV254和色度,同时提高废水的可生化性,并且在使用和处理过程中的产物对环境污染很小,是一种极为有效的预处理方法。
5)  preozonation
预臭氧氧化
1.
The combined process of preozonation and biological filter was applied to remove disinfection by-products in the raw water.
采用预臭氧氧化技术与陶粒生物滤池组合工艺去除原水中消毒副产物的前体物,考察了三卤甲烷前体物和卤乙酸前体物的转化规律。
6)  pre-ozonation
臭氧预氧化
1.
Removal of phenanthrene from contaminated soil by a combination of pre-ozonation and composting
臭氧预氧化-堆肥去除污染土壤中菲实验研究
2.
Put emphasis on the studies of pre-ozonation,O3/KMnO4 complex pre-oxidation, middling pre-oxidation, control and formation ofbromate, simulated the model of disinfection contactor.
本论文针对臭氧化技术在饮用水处理中的应用,主要研究了臭氧预氧化、臭氧/高锰酸钾复合预氧化、中间预氧化、溴酸盐生成规律和控制以及臭氧接触池的流场模拟。
3.
Advanced Treatment of Secondary Effluent by Combined Pre-Ozonation and Biofiltration;
针对现行深度处理工艺存在的去除效率低、占地面积大等问题,在对生活污水二级出水的水质特性进行系统分析的基础上,提出了臭氧预氧化/曝气生物滤池(ozonation/biological aereated filter, O3/BAF)联合工艺,并考察了该联合工艺的长期运行效果、工艺参数和影响因素,并对臭氧预氧化有机物的反应动力学、后续BAF净化有机物的机理、生物膜特性等进行了探讨与分析。
补充资料:磁性氧化铁环氧预涂底漆
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性质:是以环氧酯为主要成膜物,以磁性氧化铁为防锈颜料制成的车间预涂底漆。漆膜呈银棕色、平整无光。采用喷涂、辊涂;无空气高压喷涂施工。主要用于造船工业、铁路机车工业及钢结构件抛丸自动除锈喷涂底漆流水作业线。可与醇酸底漆、环氧底漆、硝基底膝及氯化氯丁胶底漆配套使用。

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