Water Quality Monitoring Station Secondary Water: Advancing Smart Water Management in High-Rise Buildings

Secondary water supply refers to the water supply method where units or individuals store and pressurize urban public water supply (from water treatment plants) before distributing it to users. Specifically, urban public water is delivered to residential communities or high-rise buildings through municipal pipe networks. Due to the limited pressure in municipal pipe networks, which cannot directly deliver water to high-rise users, facilities such as water pumps, water tanks (or reservoirs), and pressure tanks are required.

Water first enters underground or building basement storage tanks. It is then pressurized by pumps and delivered to elevated tanks or pressure tanks on building rooftops, or directly pumped and delivered to users' homes through variable-frequency pumps. These storage, pressurization, and distribution facilities (such as pumps, water tanks, pipes, valves, etc.) set up for secondary water supply are collectively referred to as secondary water supply systems. This water supply method is commonly used in high-rise buildings, residential communities, and similar structures.

Water quality monitoring of secondary water supply systems is primarily aimed at addressing potential water quality deterioration risks during storage and distribution. Monitoring is a direct means to verify water treatment effectiveness (such as disinfection) and identify potential issues. Through continuous monitoring, we can ensure that the water quality reaching users' taps meets the requirements of the national "Standards for Drinking Water Quality" (GB 5749-2022), safeguarding drinking water safety.

The FT-GSZ Water Quality Monitoring Station Secondary Water is an integrated online water quality analysis system incorporating multiple sensors and IoT technology. It is mainly used for real-time, continuous monitoring of water quality in secondary water supply systems, specifically in the water storage, pressurization, and distribution processes between municipal pipe networks and users' taps.

It can simultaneously measure key water quality parameters such as water temperature, pH value, dissolved oxygen, conductivity, turbidity, and ORP (Oxidation-Reduction Potential). Monitoring of these parameters employs different physical and chemical principles. For example, turbidity measurement typically uses scattered light method, pH and ORP measurements rely on electrochemical methods, while dissolved oxygen measurement may use fluorescence method.

It supports communication methods such as 4G/GPRS or wired networks, enabling remote, wireless transmission of collected water quality data to central monitoring platforms or cloud servers, thus achieving remote and intelligent water management. When any monitoring parameter exceeds preset safety thresholds, the system immediately triggers an alarm to notify management personnel for timely intervention.