Application of Ammonia Nitrogen Sensor in Wastewater Management

With the increasing scarcity of water resources and the growing severity of environmental pollution, water safety and pollution control have become a top priority in environmental management. Ammonia nitrogen, as a key indicator of water pollution, plays a vital role in wastewater treatment and environmental water quality monitoring.

FirstrateSensor's FST100-AT101A Smart Ammonia Nitrogen Sensor is specifically designed for this purpose. The sensor uses a PVC membrane-based ammonia ion selective electrode to measure ammonia ion concentration in water. It is temperature compensated to ensure fast, simple, accurate and cost-effective measurements. The sensor is widely used in industrial water quality monitoring, water treatment plants, wastewater monitoring and environmental water quality assessment.

In addition, the sensor has been designed with practicality in mind. It utilizes a standard 3/4”NPT threaded connector, giving the user the flexibility to submerge it in water or mount it on pipes and tanks.

This sensor is especially effective in wastewater monitoring. Industrial wastewater often contains fluctuating ammonia nitrogen concentrations and requires complex treatment processes. Continuous data feedback is essential for process optimization. With its highly sensitive ion measurement technology, the FST100-AT101A enables real-time monitoring of ammonium ion levels in treated water. This helps operators evaluate system performance, optimize chemical dosing, and adjust aeration intensity to prevent exceedance of discharge limits. Even under harsh conditions with high concentration, humidity, and corrosion, the sensor maintains stable performance, ensuring reliable continuous monitoring.

In environmental water quality monitoring, the sensor also plays a vital role. Whether it's deployed in rivers, reservoirs, lakes, or urban water remediation projects such as black and odorous water treatment, it is capable of long-term submersion. With IP68-rated protection, the device can operate reliably underwater for extended periods. Its RS-485 digital interface allows seamless integration with environmental monitoring platforms, supporting remote and online monitoring, and providing strong data support and decision-making reference for environmental authorities.

As a core monitoring device, smart ammonia nitrogen sensors are increasingly being adopted across environmental protection, water treatment, and scientific research sectors. From municipal sewage treatment plants and industrial zone discharge outlets to ecological river restorations and natural water body management projects, Firstrate Sensor’s ammonia nitrogen sensor is proving its capabilities in precise detection and stable operation. In the future, Firstrate Sensor will continue to drive innovation through technology, contributing to a cleaner and safer water environment.