Particle versus mercury removal efficiency of amalgam separators.
Particle versus mercury removal efficiency of amalgam separators.
复制标题
汞齐分离器的颗粒去除效率与汞去除效率。
DOI：
10.1016/s0300-5712(02)00067-2
复制
发表时间：
2003
影响因子：
4.4
通讯作者：
Cailas,MichaelD
中科院分区：
文献类型：
--
作者：
Drummond,JamesL;Liu,Yuming;Wu,TungYi;Cailas,MichaelD
该项目的目的是评估三个商业汞合金分离器的汞和颗粒remove.MethodsDental废水样品的基础上收集的效率从54椅子牙科诊所和一把椅子的私人牙科诊所。原子吸收光谱法用于测量汞，和激光衍射仪的方法来确定的粒度distributions.ResultsThe汞去除效率的三个单位的范围从26.5至61.8%的54椅子诊所和从80.8至94.7%的一把椅子的办公室。处理后，54张椅子的办公室和一张椅子的诊所的流出物的粒径范围分别为8.3-19.2μm和27.5-41.4μm。对于基于银铜和铜标准的颗粒样品，三种汞齐分离器的颗粒去除效率为92.3%至99.9%。这些样品的初始粒径分布均在100μm.ConclusionsThe效率的汞齐分离器的牙科废水的初始浓度，牙科废水到达分离器之前的物理设置的排放系统的影响，和添加化学品的牙科废水。此外，基于按重量去除颗粒的效率评估可能不如基于浓度的去除有效。
ObjectiveThe intent of this project was to evaluate the efficiency of three commercial amalgam separators based on mercury and particle removal.MethodsDental wastewater samples were collected from a 54-chair dental clinic and a one chair private dental office. Atomic absorption spectrometry was used to measure mercury, and a laser diffractometer method to determine the particle size distributions.ResultsThe mercury removal efficiency of the three units ranged from 26.5 to 61.8% for the 54-chair clinic and from 80.8 to 94.7% for the one chair office. Following treatment, the particle size range of the effluent was 8.3–19.2μm for the 54-chair office and 27.5–41.4μm for the one-chair clinic. For particle samples based on the silver–copper and copper standards, the three amalgam separators had a particle removal efficiency ranging from 92.3 to 99.9%. The initial particle size distributions for these samples were all under 100μm.ConclusionsThe efficiency of the amalgam separators is influenced by the initial concentration of the dental wastewater, the physical setup of the discharge system before the dental wastewater reaches the separators, and the addition of chemicals to the dental wastewater. In addition, it is likely that assessment of efficiency based on particle removal by weight may not be as effective as removal based on concentration.