水质总磷自动消解装置工艺条件优化  

Optimization in Process Conditions of Automatic Digestion Device for Total Phosphorus in Water Quality

作　　者：孙奕[1,2] 张卫 杨博玥[1,2] 郭志春 茆文杰 花迪 黄晓丹 符伟杰 熊陈 朱健勇[1,2] SUN Yi;ZHANG Wei;YANG Boyue;GUO Zhichun;MAO Wenjie;HUA Di;HUANG Xiaodan;FU Weijie;XIONG Chen;ZHU Jianyong(Nanjing Research Institute of Hydrology and Water Conservation Automation,Ministry of Water Resources,Nanjing 210012,China;Hydrology and Water Resources Monitoring Engineering Technology Research Center,Ministry of Water Resources,Nanjing 210012,China;Liaoning Water Affairs Service Center,Shenyang 110003,China)

机构地区：[1]水利部南京水利水文自动化研究所,江苏南京210012 [2]水利部水文水资源监控工程技术研究中心,江苏南京210012 [3]辽宁省水利事务服务中心,辽宁沈阳110003

出　　处：《化学与生物工程》2022年第2期52-54,68,共4页Chemistry & Bioengineering

基　　金：国家重点研发计划项目(2019YFB2102000);中央级公益性科研院所基本科研业务费专项资金项目(Y520021,Y921002)。

摘　　要：针对目前水质总磷在线分析仪存在消解温度高、消解时间长等缺点,设计了一种采用紫外光辅助催化氧化消解技术的总磷自动消解装置,并对消解工艺条件进行了优化。确定总磷的最优消解条件为:消解温度90℃、消解时间15 min、鼓入空气流量30 mL·min^(-1),在此条件下,可实现总磷的快速、高效在线消解,且消解效率能够达到国标要求。该消解装置模块化设计,具有成本低、安全可靠等优点,可以应用于新型总磷在线分析仪上。In terms of the problem that the current on-line analyzer of total phosphorus in water quality has the shortcomings of high digestion temperature and long digestion time,we designed an automatic digestion device for total phosphorus with UV-assisted catalytic oxidation digestion technology,and optimized the digestion process conditions.The optimal digestion conditions of total phosphorus are determined as follows:the digestion temperature of 90℃,the digestion time of 15 min,and the inlet air flow of 30 mL·min^(-1).Under above conditions,rapid and efficient on-line digestion of total phosphorus can be achieved,and the digestion efficiency can meet the requirements of national standard.The modular design of the digestion device has the advantages of low cost,safety,and reliability,which can be applied in a new on-line total phosphorus analyzer.

关 键 词：水质 总磷 自动消解 紫外光辅助催化氧化 消解温度 消解压力 消解效率 

分 类 号：O65[理学—分析化学] X853[理学—化学]