紫外光谱设备在水质监测中的应用

Application of Ultraviolet Spectrum Equipment in Water Quality Monitoring

利用自主研发的具有分布式、精度高、稳定性好、抗干扰强、响应速度快、寿命长、无需预处理、免维护、使用简单、成本低等诸多优点的光谱设备探头检测系统,实现了对水质紫外吸收光谱的原位、在线、实时检测。通过对苏州某河流超过6个月的水质检测实践,得到关于该光谱设备探头系统的2个优化工程应用方案:一个是对不同波段的光谱进行对比分析,可以得到优选光谱波段,通过建立函数模型,可以实现对COD等指标的准确测量;另一个是发现光学窗口是影响设备使用效果的重要因素,通过加装自动化清洗设备可以实现设备的长时间正常运行。随着紫外光谱探头系统基于固态LED光源及探测器一体化技术的突破与广泛应用,紫外吸收光谱在水利、环境、生态、水产、工业等领域的应用研究进入一个快速发展阶段。

Through the independent research and development system of spectrum equipment probe with the advantages of distributed,high precision,good stability,strong anti-interference,fast response,long service life,no need of pretreatment,maintenance free,simple use,low cost and many other advantages,the in-situ,online and real-time measurement of water quality ultraviolet absorption spectrum is realized.Through the application practice of water quality testing for a river in Suzhou in more than 6 months,two optimized engineering application schemes of the probe system of the spectral equipment are obtained.One is to compare and analyze the spectra of different wave bands to obtain the appropriate optimal spectral bands,through the establishment of function model,the accurate measurement of COD and other parameters can be realized;the other is that,the optical window cleaning is an important factor affecting the use effect of the equipment adding automatic cleaning equipment can realize the normal operation of the equipment for a long time.With the breakthrough and wide application of ultraviolet spectrum probe system based on solid-state LED light source and detector integration technology,the application research of ultraviolet absorption spectrum in water conservancy,environment,ecology,aquaculture,industry and other fields,has entered a rapid development stage.