chemical oxygen demand (COD) diagram

Understanding BOD and COD in Wastewater Treatment

Novair USAArticles, Knowledge Center, Oxygen Generators, Waste Water Treatment

What are BOD and COD? In the field of wastewater treatment, two parameters are essential for assessing organic pollution: biochemical oxygen demand (BOD) and chemical oxygen demand (COD). BOD (biochemical oxygen demand) BOD measures the amount of oxygen consumed by micro-organisms to break down biodegradable organic matter in water. This measurement is generally taken over 5 days at 20°C in …

NOVAIR at WEFTEC 2025

NOVAIR in Chicago for WEFTEC 2025 this September

Novair USAArticles, NOVAIR News, Oxygen Generators, Waste Water Treatment

Join NOVAIR at WEFTEC 2025 in Chicago this September! As the leading water quality exhibition in North America, WEFTEC is the place to see NOVAIR’s sustainable oxygen generation systems in action. Visit Booth #4476 to learn how our onsite oxygen solutions support efficient and cost-effective wastewater treatment, helping facilities achieve cleaner water with eco-friendly technology.