摘要
为考察研制的纳米粉尘湿法采集装置的采集性能,以NanoMUDI-125B型纳米粉尘干法采样器为对照,进行了对比研究.以光散射浊度法和紫外吸收法测试了湿法采集样品,以重量法测定了干法采集样品.结果表明,两种方法的测试结果处于同一数量级,但湿法采集样品的测试结果高于干法采集结果的4~6倍.对湿法采集样品的检测,光散射浊度法结果比紫外吸收法高5.17%~18.26%,主要与其检测原理差别和纳米粉尘粒子团聚有关.与干法采样器相比,该湿法采集装置具有采样时间短、采集效率高、对环境参数要求低等特点.
To learn the properties of homemade wet nanometer dust sampler,dry nanometer dust sampler of NanoMUDI-125B model was employed as a contrast.Under the same condition,collection experiments were conducted at 3 m and 5.5 m away from the main dust producing point in the nanometer TiO2 workshop.Light scattering turbidimetric method and ultraviolet radiation absorption method were employed to test the samples collected by wet sampler,and weight method was applied to test the samples collected by dry sampler.The results indicated that the test data with wet method were 4 to 6 times higher than that with dry method.Compared with the test data of light scattering turbidimetric method and ultraviolet radiation absorption method,the results of the former were 5.17% to 18.26% higher than that of the latter because of the difference of their test principle and reunion of the nanometer dust particles.Compared with the dry sampler,many properties of the wet nanometer dust sampler standed out,such as short sampling time,high sampling efficiency and low environment parameter requirement.
出处
《过程工程学报》
CAS
CSCD
北大核心
2009年第S2期117-121,共5页
The Chinese Journal of Process Engineering
基金
国家973计划资助项目(编号:2006CB932504)
关键词
纳米粉尘采样器
干法采样
湿法采样
纳米二氧化钛
纳米粉尘
nanometer dust sampler
dry method collection
wet method collection
nanometer TiO2
nanometer dust
