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As a category closely related to people, the water environment has always been a key content that people attach great importance to. As a pioneer in water environment management, water quality monitoring instruments are constantly improving their skills.
Water quality testing is to monitor and determine the types of pollutants in water bodies, the concentration of various pollutants and their changing trends, and the process of evaluating water quality conditions. There are two main categories: one is a comprehensive goal reflecting the water quality, such as Temperature, color, turbidity, pH, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biological oxygen demand, etc.;
The other category is some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides. After water quality testing, people can accurately, timely and comprehensively reflect the current water quality, and provide a scientific basis for water quality management, pollution source control, and water quality planning.
Now just a few clicks of the mouse, you can view the water quality test data of the water supply project. 'In a water and water environment testing center, the staff talked happily. As a magic weapon for water environment management, water quality testing instruments play a very important role in the protection of the water environment, but in the past, it has not been so easy. .
Before entering the 21st century, my country’s water quality monitoring equipment was basically imported from abroad. With the continuous development of the profession, my country has continuously introduced and absorbed new skills, such as samplers, conductivity meters, PH meters, and dissolved oxygen. Analyzers, etc. have been fundamentally self-sufficient.
At that time, the primary instruments and equipment of the water quality laboratory were a few kinds of UV-visible spectrophotometers, pH meters, dissolved oxygen meters, etc. The targets that could be measured were only ammonia nitrogen, nitrate-nitrogen, total nitrogen, total phosphorus, and microorganisms. There are more than a dozen items such as the total number of bacteria, and it often takes several hours to complete the test.
Following the continuous development of the water quality testing profession, the number of domestic water quality testing equipment manufacturers has grown rapidly, and some companies with independent research and development capabilities have grown stronger, and the water quality testing equipment skills have undergone great changes.
Now, a water and water environment monitoring center in a certain city has been equipped with modern analytical instruments such as gas chromatography-tandem mass spectrometry, inductively coupled plasma mass spectrometry, gas chromatography-mass spectrometry, and two-channel alpha and beta radioactivity detectors. Other conventional testing equipment. The testing capability not only completely covers the domestic surface water, drinking water, and sewage water quality specifications, but also extends to the hot items outside the specifications and the testing targets of the WHO's drinking water hygiene guidelines. The testing capability reaches more than 500 items.
The improvement of the detection ability of the water environment monitoring center is also conducive to the establishment of a comprehensive water quality monitoring network based on the laboratory information management system and the water environment monitoring center as the core, allowing water environment management to focus on water quality detection data It becomes easier.
In the field of testing equipment skills, the water quality testing equipment introduced now tends to be integrated and miniaturized. At the World Intelligent Water Quality Monitoring Equipment Summit Forum, launched a small water quality monitoring module that integrates a variety of micro-spectral sensors to reduce the traditional TOC detector with a height of one person to The size of the matchbox can detect many important targets such as TOC, TDS, residual chlorine, turbidity and COD in the water online in real-time.
It is understood that this instrument can not only be used in water source water plants and water supply pipeline inspections, commercial venues, hydrogeological and environmental inspections, and scientific research but also can be used in domestic water use inspections, allowing multiple water environment management scenarios The establishment becomes more efficient.
In addition to many breakthroughs in equipment and skills, there have also been more changes in the form of testing instruments. Recently, the Chinese Academy of Sciences has developed a paper chip for super wet heavy metal detection. The heavy metal ion analysis paper chip made by inkjet printing method only needs to be put into the water sample to be tested, and the visual analysis of heavy metal ions can be carried out according to the color change.
From the previous single water quality testing instrument to a variety of testing instruments, from simple to integrated, from the very low detection power to the current online detection and the results can be obtained by the naked eye, the detection instrument has With the earth-shaking changes, the management of the water environment has also become easier, portable and efficient.
However, the development of water quality testing instruments will not stop there. With the rapid development of the Internet of Things and other advanced technologies, future testing instruments will undergo greater changes, allowing greater breakthroughs in water environmental management. For manufacturers of water quality testing instruments, they must actively keep up with the market trend, and be able to illuminate the establishment of a new scene of water management, and jointly promote the continuous development of the enterprise.
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