紫外有机物分析法在原水在线监测中的应用研究

On-line Raw Water Quality Detection with UV Organics Analysis

比较了标准紫外分光光度法和紫外有机物分析法测定紫外吸光度的精密度,确定了紫外有机物分析仪测定的紫外吸光度SAC254值与有机物浓度参数UV254、高锰酸盐指数、TOC和DOC值之间的定量关系。试验结果表明,紫外有机物分析法具有操作、维护简单,无二次污染,实时响应快,精密度高等优点。原水SAC254值与标准方法测定的UV254、高锰酸盐指数、TOC以及DOC值之间都具有良好的相关性,可根据原水SAC254值的变化通过转换得到原水有机污染程度的变化趋势,为水厂工艺运行提供指导。

The precision of UV organics analysis was compared with standard UV analysis to determine the quantitative relationship among organic parameters in terms of SAC254,UV254,CODMN,TOC and DOC.Results indicated that UV organics analysis is advantageous over real time response and high precision without secondary pollution.There are significant linear relationships among SAC254 and UV254,CODMN,TOC and DOC,and variation of SAC254 indicates extent of organic pollution in raw water,which can provide guidance for waterworks operation.