How does a Grease Interceptor work?
An interceptor is a tank specially designed to reduce the velocity of wastewater and allow the separation of the wastewater into three basic fractions – floatables (fats, oils & greases), solids and water – and allow the discharge of only the water fraction. This separation occurs because some wastes (such as fats, oils and greases) are lighter than water and others (such as food particles) are heavier. The lighter material floats to the top of thinterceptor and is retained or intercepted. The heavy material sinks and is retained or intercepted, and the ‘clean’ water layer in the middle is allowed to pass out of the interceptor to the sewer.
