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Six typical application fields of process-type water quality analysis instruments At present, typical applications of process-type online water quality analyzers in China are: petrochemical industry, online TOC analyzer has become the standard configuration adopted for condensate reuse; in the tap water industry, Water plants using chlorine and chloramine processes use on-line disinfectant analyzers, such as residual chlorine and chloramine analyzers, to save water treatment chemicals and reduce operating costs. In the pharmaceutical industry, the use of an online TOC analyzer has also become an important means for the monitoring and control of organic impurities in pharmaceutical water. In municipal wastewater treatment and aquaculture industries, on-line monitoring of dissolved oxygen reduces energy consumption and operating costs while ensuring water quality. The current standards for nutrient on-line analytical instruments are also gradually being applied to help wastewater treatment plants achieve optimal control of dephosphorization and dechlorination processes and improve wastewater discharge standards; in addition to on-line hardness, on-line sodium ion analyzers are used to optimize boilers. Water treatment process.
At present, the main problems of online water quality analyzers in China The rapid development of China's online water quality analysis instrument market has led to rapid development of monitoring-based online water quality analyzers. Process-based online water quality analysis instruments have begun to be used in large numbers to provide technical support for industrial upgrading of the water industry, optimization control of water treatment processes, and reduction of energy consumption. However, there are also many problems, such as: online water quality analyzer currently uses the traditional analysis principle, the new measurement principle is less applied, the data obtained by the monitoring instrument are independent, and the correlation is not strong; the establishment of basic water quality database At the beginning, the lack of post-processing and analysis of data has made the value of the data not fully reflected, and it has not been able to provide support for water environment prediction and early warning. Simply relying on monitoring-based analysis technology, lack of more effective means for data fraud, the value of online water quality analysis instruments has not been fully reflected.
Development of online water quality analyzers The emergence of new measurement principles, new materials, and new algorithms has also driven the development of water quality analysis instruments. New measurement principles such as LIBS (laser-induced breakdown spectroscopy), HMA (mixed multispectral analysis), MWDXRF (single wavelength dispersive X-ray fluorescence analysis), and biotechnology have gradually been adopted by online water quality analyzers, and more will emerge. Water quality parameters that enable online analysis. New materials such as graphene, nanomaterials, and biochips also provide material support for the application of the new measurement principle to online water quality analysis instruments. Chemometrics will be applied more and more in water quality analysis; the emergence of various new algorithms and water quality models will also enhance the functionality of various new online water quality analysis instruments and improve data processing, providing more Value of water quality information and data.
Development trend of online water quality analyzers With regard to the future development of water quality analysis instruments, intelligentization will become the mainstream of online water quality analyzer controllers. It will have network functions and more human-computer interaction methods such as gestures and voice control; through cloud computing Data sharing and data reprocessing between instruments can be realized.
The sensors will be mainly miniaturized and cost-effective. The data will be directly transmitted, and more water quality parameters can be monitored online. Software, in addition to the instrument's own control software and data analysis software, a variety of communications, data analysis and processing of application software, water quality identification software will become a reality.
In addition, the online water quality analysis instrument will have self-learning and self-management, self-adaptive functions, can make active adjustments or warnings according to changes in the environment and operators, as well as the status of the instrument itself; the instrument can record and remind a variety of use and maintenance information, guide The use of instruments by the instrumentation staff took the initiative in instrument maintenance, spare parts management, and instrument life prediction to improve work efficiency.
Software and data processing technology will also be an important part of the online water quality analysis instrument. With the advent of big data technology and cloud computing, it will change the way in which data management and information were previously distributed across different departments and individuals; a large amount of data from online water quality analysis instruments can be quickly processed and analyzed, creating regional or Baseline water quality of the river basin, establishment of a basic database of water quality in the target area; construction of algorithms and mathematical models for the purpose of water quality prediction and safety warning to guide government water management and people's water use behavior.
As a "discontinuous real-time analysis technology", mobile analytics will become the supplement and development of traditional online water quality analysis technology in the future. Mobile water analysis equipment includes portable analytical instruments and preformed reagents. On the basis of miniaturization of the instrument, the mobile water analysis equipment will also increase wireless communication and GPS functions, and various data processing analysis and transmission APPs will appear in large numbers, providing more data information for the big data processing center. The existing mobile terminals will increase the water quality analysis function and realize the civilianization of mobile water quality analysis technology.
The popularity of the mobile Internet and the emergence of cloud computing have enabled the data sharing of mobile water quality analysis to become a reality. With the support of appropriate mobile carriers, a large amount of real-time water quality data can be obtained within the region; mobile analytics can provide cost-effectiveness compared to traditional fixed online analysis. Lower, broader coverage, and more informative data. Due to the emergence of big data and cloud computing, non-professional analysts can provide non-traditional water quality related data, and comprehensive assessment of water quality will become more and more valuable.
China's water quality analyzer market is growing at an alarming rate
On-line water quality analysis equipment The monitoring type is mainly used for simple water quality monitoring to determine whether the water quality meets the requirements of laws and regulations, as well as the early warning of environmental water quality and drinking water quality. The water quality parameters are mainly COD, ammonia nitrogen, total phosphorus, total nitrogen and heavy metals. At the same time, the accuracy of the data is more demanding. Process-type water quality monitoring equipment is mainly used for water treatment process or water quality monitoring, and the measured water quality parameters participate in process control to achieve optimized water treatment process and improve water treatment efficiency. The process-based online water quality monitor has higher requirements for the reliability and stability of the instrument. It requires the instrument to reliably reflect the trend of water quality changes, and provides a basis for water treatment process control. In addition, the requirements for the response time of process analytical instruments are also significantly higher than that of monitoring instruments.