Drinking water safety is the foundation of people's livelihood, and turbidity is one of the important indicators to measure the quality of drinking water. The ultra-high precision turbidity meter plays a crucial role in various aspects of drinking water treatment, from the water source to the deep treatment of the water plant, and finally to the finished water, all of which rely on its accurate monitoring. For example, real-time and high-precision monitoring of turbidity at the effluent end of ultrafiltration devices in water plants can promptly detect membrane fouling or damage, ensuring that the effluent quality meets standards. According to the "Hygienic Standards for Drinking Water" (GB 5749-2006), the turbidity limit of drinking water has been raised from 3NTU to 1NTU in 2005, which reflects the increasingly strict requirements of the country for drinking water quality. The ultra-high precision turbidity meter can easily meet or even exceed this strict standard, with a resolution as low as 0.0001NTU, making any small water quality fluctuations unavoidable, providing solid technical support for ensuring the drinking water health of billions of people.

Industrial production also has strict requirements for water quality, especially in industries such as power plants, petrochemicals, pharmaceuticals, food, electronics, and semiconductors. The water quality of these industries not only affects product quality, but also relates to production efficiency and equipment safety. The ultra-high precision turbidity meter plays the role of a "quality goalkeeper" in such scenarios. For example, in the boiler feedwater treatment of power plants, trace amounts of suspended solids can cause boiler scaling, affect thermal efficiency, and even lead to safety accidents; In semiconductor production, the requirements for ultrapure water are even more stringent, and any tiny particles can lead to chip scrap. Turbidity meter can monitor the turbidity changes of process water in real time, help enterprises accurately control the water treatment process, optimize the dosage of flocculants, evaluate the effluent effect of sedimentation tanks, and ensure the stability of the production process and the reliability of product quality. Taking the food and beverage industry as an example, precise detection of suspended solids content in liquids such as fruit juice and beer is a key step in ensuring product taste and shelf life.

The health status of water environment is an important indicator of ecological civilization construction. Ultra high precision turbidity meters play an irreplaceable role in environmental protection and ecological monitoring. It is widely used for real-time monitoring of natural water bodies such as surface water, groundwater, and seawater, providing key data support for evaluating water pollution status, warning of algal blooms, and tracking the diffusion path of pollutants. According to the "Surface Water Environmental Quality Standards" (GB 3838-2002) and the "Groundwater Quality Standards" (DZ/T 0290-2015), different types of water bodies have clear limit requirements for turbidity. For example, Class III surface water requires a turbidity of less than or equal to 10NTU, while Class I to III groundwater requires a turbidity of less than or equal to 3NTU. The ultra-high precision turbidity meter can accurately capture these subtle changes in turbidity, helping environmental monitoring departments detect water quality anomalies in a timely manner and providing scientific basis for water environment management and pollution control.

Wastewater treatment is an important part of the urban water cycle, and its treatment efficiency and effluent quality directly affect the ecological health of the receiving water body. In sewage treatment plants, ultra-high precision turbidity meters are important tools for achieving refined management and optimizing process flows. It can monitor the turbidity changes of inflow, outflow, and various treatment units (such as sedimentation tanks and biochemical tanks) in real time, providing timely and accurate data support for operators. For example, by monitoring the turbidity of the flocculation tank, the dosage of flocculant can be accurately adjusted to avoid excess or insufficient, thereby improving the flocculation effect and reducing operating costs. Meanwhile, continuous monitoring of the turbidity of the effluent from the sedimentation tank can effectively evaluate the sedimentation effect and ensure that the effluent quality meets the discharge standards. For some high turbidity water samples, such as industrial wastewater with turbidity values exceeding 10000 NTU, ultra high precision turbidity meters can still provide reliable measurement results, which is of great significance for treating complex industrial wastewater and ensuring its discharge meets standards.