How to solve the water pollution problem in the Yangtze River Basin? Monitoring instruments help

In recent years, due to various pollution sources and the length of the Yangtze River, it has been difficult to plan unified water quality issues in the Yangtze River Basin. According to environmental statistics, the total wastewater discharge in the Yangtze River Economic Zone accounts for approximately 43% of the country's total wastewater discharge, of which the total chemical oxygen demand and ammonia nitrogen emissions account for 37% and 43% of the country's total, respectively. They are the largest in the Huaihe and Yellow River basins. 4 times, 5 times.

However, in Hubei Province, due to the failure or imperfection of rainwater and sewage diversion in 74 enterprises, irregular rainwater collection in the early stage of material storage yards, irregular construction of groundwater monitoring wells, flood control and drainage, Due to problems such as irregular ditches and incomplete coverage of phosphogypsum stockpiles in the factory area, total phosphorus pollution in the Yangtze River Basin has exceeded chemical oxygen demand and ammonia nitrogen, becoming the primary pollutant in this section of the Yangtze River Basin.

In order to promote the protection of water resources in the Yangtze River Basin, our country has protected the Yangtze River Basin in many aspects. For example, my country has carried out water environment quality monitoring and early warning in the Yangtze River Basin, and accelerated the construction of a water quality monitoring network for cross-border responsible sections in the Yangtze River Economic Belt at the provincial, municipal and county levels. At present, 780 cross-border sections have been added in the Yangtze River Basin, 668 automatic water quality monitoring stations and quality control emergency monitoring platforms have been newly built or renovated, and monitoring of sewage outfalls into the main Yangtze River has been actively promoted. At the same time, our country has specially formulated and issued the "Yangtze River Ecological Environment UAV Remote Sensing Survey Work Plan" and the Yangtze River Sewage Outlet Monitoring Plan to provide guidance and regulations for monitoring work. The implementation of these measures has promoted the improvement of water quality in the Yangtze River Basin to a certain extent.

Through monitoring, the impact of different pollution sources on water environment quality can be analyzed, providing necessary technical support for management departments to target key goals of pollution control, supporting the evaluation of project implementation effects, and providing management departments with Provide important support for scientific decision-making on water resources protection. According to monitoring data from the China Environmental Monitoring Station, from January to June 2019, the proportion of water quality sections in the Yangtze River Class I-III was 77.9%, a year-on-year increase of 4.6 percentage points; 4.5% was worse than Class V, a year-on-year decrease of 2.7 percentage points.

In addition, with the accelerated integration of new generation digital information technologies such as the Internet of Things, cloud computing and intelligent applications with manufacturing, the development of grid and intelligence is also It has injected new impetus into the water quality monitoring industry. In order to further protect the water quality protection results in the Yangtze River Basin, the China Environmental Monitoring Station organized a long-term meeting from July 9th to 10th.The seminar on water environment quality prediction and early warning in the Yangtze River Basin proposed new measures to establish a water quality prediction and early warning system in the Yangtze River Basin.

The meeting mentioned that in recent years, the country has attached great importance to the construction of ecological civilization, showing strong determination to improve environmental quality, and has also put forward higher requirements for environmental monitoring work. Traditional Discrete monitoring data analysis is no longer able to fully meet current management needs. It is necessary to effectively integrate multiple monitoring data and at the same time deeply process the data to form high-quality data products.

Academician Hou Li'an, a professor at the Chinese People's Liberation Army Rocket Force Engineering University, also proposed that satellite remote sensing, intelligent sensing and other technologies can be used to develop full-process monitoring robots for water systems, focusing on the development of water monitoring drones. , sample collection robots, multi-functional water quality monitoring robots, water facility inspection robots and other intelligent monitoring equipment to realize functions such as pollution source investigation, rapid identification of water problems, and water quality early warning and forecasting in the Yangtze River Basin. In the future, the Yangtze River water quality monitoring work will become more intelligent, data-based and systematic.

Generally speaking, water quality protection in the Yangtze River Basin is a long-term task. As people pay more attention to water environment issues, investment in water quality monitoring construction will continue to increase, and the water quality monitoring industry will welcome There is more room for growth, and the future prospects are worth looking forward to.

　(Original title: How to solve the water pollution problem in the Yangtze River Basin? Monitoring instruments can help)