环境监测中两种COD测定方法的对比研究
Comparative Study of Two Methods of COD Determination in Environmental Monitoring
张伟 1付泽轩1
作者信息
- 1. 酒泉钢铁(集团)有限责任公司,甘肃 嘉峪关 735100
- 折叠
摘要
环境监测中的化学需氧量(COD)是评估废水中有机物污染程度的关键指标.本研究对比了两种常用的COD测定方法:传统重铬酸钾法和快速光谱法.通过对两种方法的原理、优缺点进行分析,结果表明,传统重铬酸钾法准确度高,但操作繁琐、耗时且对环境有害,而快速光谱法操作简便、快速,适合快速的现场监测,但容易受其他物质的干扰.本研究为环境监测领域选择COD测定方法提供了科学依据.
Abstract
Chemical oxygen demand(COD)in environmental monitoring is a key index to assess the degree of organic pollution in wastewater.In this study,two commonly used methods for COD determination were compared:traditional potassium dichromate method and rapid spectrometry.The principle,advantages and disadvantages of the two methods are analyzed.The results show that the traditional potassium dichromate method has high accuracy,but the operation is cumbersome,time-consuming and harmful to the environment.Rapid spectroscopy is easy to operate,fast and suitable for rapid field monitoring,but it is interfered by other substances.This study provides a scientific basis for the selection of COD determination methods in the field of environmental monitoring.
关键词
COD/重铬酸钾法/光谱法/环境监测/废水分析Key words
COD/potassium dichromate method/spectroscopic method/environmental monitoring/wastewater analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据