Under what conditions are enzymatic grease interceptors allowed?

Enzymatic grease interceptors are typically not allowed because these types of systems can be ineffective under many conditions that are crucial for proper grease management. For instance, these interceptors rely on biological activity to break down fats, oils, and greases (FOGs), which requires consistent temperature, pH levels, and appropriate flow rates.

In many jurisdictions, the concern is that enzymatic systems may not be capable of handling higher volumes of grease effectively, particularly in commercial applications where large quantities of FOG are produced. Traditional grease interceptors, often gravity-based, are more reliable for keeping FOG out of the wastewater system. They do not depend on the presence and effectiveness of specific bacterial cultures, which can vary widely.

Regulatory guidelines typically prefer systems with proven efficacy under varying conditions of flow and loading, making other systems more suitable for installation in food service establishments. This is why the use of enzymatic grease interceptors is often restricted, as they may not consistently perform effectively across all required scenarios.