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Online wastewater quality monitoring is a method that uses automated equipment and technology to perform real-time, continuous monitoring of water quality parameters at wastewater discharge outlets or during treatment processes. It provides timely data feedback, helping environmental protection authorities and enterprises better manage and control water pollution problems.

Monitoring Indicators

pH value: An important parameter reflecting the acidity or alkalinity of water.

Chemical Oxygen Demand (COD): A key indicator for measuring the organic matter content in water.

Biochemical Oxygen Demand (BOD): Represents the amount of oxygen required by microorganisms to decompose organic substances in water.

Ammonia nitrogen: Assesses the concentration of ammonia‑nitrogen in wastewater; excessive ammonia nitrogen levels may lead to eutrophication of water bodies.

Total phosphorus and total nitrogen: Used to monitor the nutrient content in water bodies.

Suspended Solids (SS): Refers to insoluble solid matter in water.

Heavy metal ions: Such as mercury, cadmium, lead, etc., which pose serious hazards to the environment and human health.

Benefits

Improve regulatory efficiency: Environmental protection authorities can use online monitoring data to quickly detect illegal discharge behaviors and enhance law enforcement.

Optimize wastewater treatment processes: Enterprises can use real‑time monitoring to understand the operational status of their wastewater treatment facilities, adjust operating parameters in a timely manner, and improve treatment efficiency.

Prevent environmental pollution accidents: Early warning functions help prevent major pollution incidents and protect ecological and environmental safety.