活化硅酸最佳活化状态的光学控制方法初探  

A Rapid Spectrophotometric Method to Control the Optimum Activated Sillica Acid

作　　者：王东田 陈忠林 马军 李圭白 

出　　处：《哈尔滨建筑大学学报》1997年第2期80-82,共3页Journal of Harbin University of Civil Engineering and Architecture

基　　金：国家教委"跨世纪优秀人才计划"基金

摘　　要：首次提出了采用光学方法控制活化硅酸的最佳活化状态，研究发现，对于二氧化硅浓度一定的活化硅酸溶液，在一定的入射光波长和比色皿厚度条件下，活化硅酸的透光率只与活化时间有关，而与活化ｐＨ值无关。可利用活化硅酸的这一光学特性。A simple and rapid spectrophotometric method for measuring and controlling the optimal activated state of silica acid was put forward on the basis of. experiment. lt was found that at a specific conceatration of SiO_2, a specific waveleagth of the input ligbt and a certain length of optical path , tbe transmittance of the activated silica acid solution at the optimal activated state was almost constant,indepeadent of the activation pH and the activation temperature.

关 键 词：活化硅酸 助凝 最佳活化状态 给水处理 光学控制 

分 类 号：TU991.2[建筑科学—市政工程]