Improve the national marine science and technology strength Xi'an Institute of Optics and Mechanics "Development and Industrialization of Online Monitoring Instrument for Total Nitrogen and Phosphorus in Seawater" project passed the acceptance

Phosphorus and nitrogen are one of the more common biogenic elements in seawater, and are also important indicators of marine ecological environment monitoring.
The total nitrogen and total phosphorus content in seawater exceeds a certain index, which will cause water eutrophication and cause red tide, and then plankton and algae die.
Water quality deterioration and other serious consequences
.

 

In recent years, with the deepening of China's attention to seawater environmental monitoring, the analysis of total phosphorus and total nitrogen in seawater has also attracted more and more attention
.
The online monitoring of total nitrogen and total phosphorus in seawater can provide long-term continuous real-time monitoring data for ecological monitoring and early warning of ecological disasters such as marine red tide and green tide, thereby effectively improving the timeliness and accuracy of forecasting
.

 

On March 31, the special project " Development and Industrialization of Online Monitoring Instrument forTotal Nitrogen and Total Phosphorus in Seawater" undertaken by the team of Yu Weixing and Yu Tao, a researcher of Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences The online project comprehensive performance evaluation meeting organized by the China Agenda 21 Management Center of the Ministry of Science and Technology has been reviewed and accepted, and has been highly recognized and praised by experts
.
The project is led by the Xi'an Institute of Optics and Mechanics, with the participation of the Institute of Marine Instrumentation of Shandong Academy of Sciences, the First Institute of Oceanography of the Ministry of Natural Resources, and the North Sea Forecast Center of the State Oceanic Administration
.

 

In the major strategic deployment of Xi'an Institute of Optics and Mechanics to build a "marine power", combined with the urgent demand for optical equipment in the field of marine ecological environment monitoring, the research on the expansion of spectral imaging technology in the marine field has been deployed, and the key technology research and development of fine spectral detection has been carried out.
Systematic equipment development work
.
In response to the urgent needs of online monitoring instruments for total nitrogen and total phosphorus in seawater, Xi'an Institute of Optics and Fine Mechanics has made breakthroughs in optical flow integrated design, continuous fine spectral detection, dual optical feedback self-calibration, quantitative inversion based on characteristic peak area, underwater in situ Environmental adaptability design and other key technical bottlenecks, develop a total nitrogen and total phosphorus sensor
suitable for in-situ online monitoring of seawater .

 

The seawater total nitrogen and total phosphorus in-situ spectral sensor developed based on this project has the characteristics of high technical content, large added value, and good comprehensive benefits.
Data reference is one of the important indicators to realize the national marine scientific and technological strength
.
The implementation of this project can provide independent technical means for domestic marine business units to obtain real-time data of total nitrogen and total phosphorus in seawater, enhance China's independent marine monitoring capabilities, and partially solve the bottleneck problem of basic equipment that restricts the construction of China's marine business monitoring network, thereby improving China's The monitoring level of marine ecological environment has social value and application prospect
.

 

The research results of the project have been applied to the "Beautiful China: Multi-element Stereo Monitoring Technology and Application of Integrated Multi-element Stereoscopic Monitoring Technology and Application of Water Environment and Water Ecology in the Main Stream of the Yangtze River" of the Chinese Academy of Sciences' Strategic Pilot Science and Technology Project (Class A).
An important part of the underwater in-situ monitoring system in the system, the self-developed online monitoring instrument for total nitrogen and total phosphorus in seawater has been deployed on the water platform of the Poyang Lake Demonstration Area and has realized operational operation
.
In addition, the instrument can also provide an independent and reliable means for real-time online operational monitoring of large surface water systems such as rivers, lakes and reservoirs
.

 

　　Reference source: Xi'an Institute of Optics and Fine Mechanics
 

　　Original title: To enhance the national marine science and technology strength, Xi'an Institute of Optics and Mechanics' "Development and Industrialization of Online Monitoring Instrument for Total Nitrogen and Total Phosphorus in Seawater" passed the acceptance