Is Ozone an effective treatment for reducing Chemical Oxygen Demand?

Quite simply, yes.

Chemical Oxygen Demand (COD) is the amount of oxygen consumed to chemically oxidize organic water contaminants to inorganic end products. It is a measure of water and wastewater quality.

Many of the chemicals and cleaning agents used in agricultural food production and sanitation contribute to high levels of COD. Chemicals interact with the contaminants and will persist in the water, leading to higher levels of COD usually needing treatment to reduce or remove.

Ozone does not create or contribute to COD, and is effective at reducing COD levels in both incoming source water and outgoing wastewater. When used to treat water or provide sanitation, it can eliminate or reduce the need for chemicals and cleaning agents throughout the production process as it breaks down to oxygen and does not persist or make other chemicals. It is also an effective treatment for the organic compounds that are often a part of food production and processing and an important tool in many overall treatment processes for food and agriculture.