摘要：

提出了一种采用物理手段进行氧化消解水样的方法,对总氮总磷国标法中传统的氧化消解方法进行了改进。研究开发了一套集臭氧、紫外光、超声波、高压静放电等高级氧化技术协同的氧化消解装置,并结合分光光度法,实现了对水中总氮总磷的在线连续检测。进行了精密度检验,将检测结果与标准值进行比对,表明其具有较好的准确度。与标准方法相比,该设备具有无需添加化学氧化剂,测量准确、快速、方便等特点,适用于工业废水及城市污水的在线监测系统,具有良好的应用推广价值。

关键词: 高级氧化, 分光光度法, 总氮, 总磷

Abstract:

An oxidation method is proposed by physical means to digest water samples. The traditional oxidative digestion of TN and TP has been improved in the national standard methods. A set of oxidative digestion device is developed by synergizing with some kinds of high-level oxidation technologies，such as ozone，UV，ultrasonic， highvoltage static discharge，etc. and combining with spectrophotometry. As a result， the total nitrogen and total phosphorus in water can be detected online continuously. Compared with standard methods，this device is characterized by no need to add chemical oxidant，accurate measurement，rapid and convenient. It is suitable for online monitoring system of industrial and urban wastewater and is worth popularizing.

Key words: advanced oxidation process, spectrophotometry, total nitrogen, total phosphorus

中图分类号: 

• X853

• O657.32