Kunming Sewage Treatment Plant, Yunnan Province

Water Quality Monitoring Project at a Wastewater Treatment Plant in Yunnan Using a Micro Water Station and IoT Platform

A wastewater treatment plant in Yunnan has adopted a solution combining a micro water station with an IoT platform for water quality monitoring. This approach aims to improve treatment efficiency and management level. With rapid urbanization and population growth, the demand for wastewater treatment is steadily increasing, imposing higher requirements on the operational efficiency and management capabilities of treatment plants. To address these challenges, this plant introduced a micro water station solution based on IoT technology.

Micro Water Station

The micro water station is a compact water quality monitoring device that integrates multiple sensors. It can automatically collect water quality parameters and transmit the data to the cloud or a data center via wireless networks. Its features include:

Multi‑parameter Monitoring: Simultaneously monitors multiple water quality indicators, such as COD (chemical oxygen demand), ammonia nitrogen, total phosphorus, total nitrogen, pH, electrical conductivity, dissolved oxygen, turbidity, etc.

High Degree of Automation: Integrates sampling, analysis, recording, and long‑distance data transmission into a single automated operation.

Flexible Deployment: Small in size, easy to install along riverbanks or at other locations requiring monitoring, with minimal impact on the landscape.

IoT Platform Functions

As the core of the entire system, the IoT platform provides data processing, analysis, and visualization capabilities. Its functions include:

Remote Monitoring: Real‑time monitoring of electrical parameters (current, voltage, cumulative power consumption, etc.) of pumps, as well as process parameters such as wastewater tank level and grid status; also supports video surveillance.

Smart Control: Adjusts pump operation status periodically based on preset rules and real‑time data, enabling pump rotation and timely activation of standby pumps.

Alarm Mechanism: Automatically sends alarm messages (e.g., SMS, email, WeChat notifications) when anomalies are detected, alerting relevant personnel for timely intervention.

Operation and Maintenance Management: Supports the creation, editing, and assignment of maintenance work orders to ensure timely and effective maintenance activities.

Data Analysis and Optimization: Utilizes big data analytics to optimize the wastewater treatment process, improve effluent quality, and reduce O&M costs.

Application Value

Enhanced Operational Efficiency: Remote monitoring and control improve pump utilization and drainage capacity, while reducing unplanned downtime.

Ensured Water Quality Safety: Real‑time monitoring of water quality changes ensures compliance with discharge standards.

Information‑based Management: Enables paperless management of consumables, chemicals, glassware, etc., thereby enhancing overall enterprise management efficiency.