Water quality monitoring is one of the primary tasks in environmental monitoring. It accurately, promptly, and comprehensively reflects the current status and trends of water quality, providing a scientific basis for water environment management, pollution source control, environmental planning, and more. It plays a crucial role in protecting the water environment, controlling water pollution, and maintaining water health.
Shanghai Chunye Instrument Technology Co., Ltd. adheres to the service philosophy of "committed to transforming ecological environment advantages into eco-economic advantages." Its business scope mainly focuses on the research and development, production, sales, and service of industrial process control instruments, online water quality automatic monitors, VOCs (volatile organic compounds) online monitoring systems and TVOC online monitoring alarm systems, IoT data acquisition, transmission and control terminals, CEMS flue gas continuous monitoring systems, dust and noise online monitors, air monitoring, and a series of related products.
Recently, good news came from a water quality monitoring equipment upgrade project at a wastewater treatment plant in Xinjiang. The complete monitoring system, consisting of Shanghai ChunYe Instrument Technology Co., Ltd.'s T9000 CODcr water quality online automatic monitor, T9001 ammonia nitrogen water quality online automatic monitor, T9003 total nitrogen water quality online automatic monitor, T9008 BOD water quality online automatic monitor, and T4050 online pH meter, has been successfully installed, commissioned, and officially put into operation.
The installed equipment is equipped with a 12-channel sampling module, enabling continuous monitoring of multiple batches of water samples, fully complying with the requirements of HJ 915.2—2024 Technical Specifications for Installation and Acceptance of Automatic Surface Water Quality Monitoring Stations. Among them, the T9000 series monitors adopt nationally certified testing methods (the T9000 and T9008 models use the potassium dichromate oxidation spectrophotometric method, the T9001 model uses the salicylic acid spectrophotometric method, and the T9003 model uses the potassium persulfate oxidation-resorcinol spectrophotometric method). They can accurately capture key indicator data such as CODcr, ammonia nitrogen, total nitrogen, and BOD, with measurement ranges covering 0–10,000 mg/L (CODcr), 0–300 mg/L (ammonia nitrogen), 0–500 mg/L (total nitrogen), and 0–6,000 mg/L (BOD). The indication error is ≤±5% (using 80% range standard solution), ensuring precise and reliable data. The T4050 online pH meter has a measurement range of –2.00 to 16.00 pH, with a basic error of ±0.01 pH, enabling real-time monitoring of water acidity and alkalinity, forming a comprehensive water quality monitoring network.
During the installation phase, the technical team strictly followed the equipment operation manual requirements. To address the complex water sample environment of the wastewater treatment plant, they performed customized debugging on the equipment's pretreatment module—by adding filtration devices and a constant-temperature sampling chamber, effectively avoiding interference from high-suspended solids in water samples on monitoring accuracy. The construction of the monitoring substation room complied with standards, with an area greater than 15 m², a distance of less than 50 m from the sampling point, a constant indoor temperature maintained between 5–28°C, stable power supply, and proper grounding. Meanwhile, the equipment was seamlessly integrated with the plant's existing PLC control system, supporting standard Modbus RTU communication protocol and HJ212-2017 protocol. Data can be directly synchronized to the central control room screen via RS232/RS485 interfaces, achieving full-process automation of "sampling-analysis-warning-recording." The equipment also features 5-year data storage functionality, allowing historical monitoring data to be traced and queried.
After the equipment was put into operation, wastewater treatment plant staff reported: "Previously, manual sampling and analysis took over 2 hours. Now, the T9000 series automatically completes a full-parameter monitoring every 2 hours, with data error controlled within ±5%, maintenance intervals exceeding 1 month, and each maintenance requiring only 5 minutes. This not only reduces operational pressure but also allows us to adjust treatment processes more promptly." This upgrade not only helps the plant meet the Grade A requirements of GB 18918-2002 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants but also provides long-term, reliable data support for the dynamic management and control of water environment quality in the Xinjiang region through its built-in self-check and protection functions (data is not lost after abnormalities or power outages, and operation automatically resumes after power restoration) and one-click maintenance functions (automatic drainage of old reagents, cleaning of pipelines, and calibration verification).
Post time: Dec-26-2025