Automatic Grease Separation and Solids Removal GreaseShield is the first proactive greasetrap to deal with emulsified and saturated animal fats and FOGs, before they solidify. GreaseShield removes entrained solids to reduce BOD, COD and SS loadings reducing loading on waste water treatment plants and pumping stations. GreaseShield harvests a source of renewable energy. No heating elements; Low operating cost; Sustainable Award Winning Technology!GreaseShield protects the drainage system and reduces the loading on waste water treatment plants and pumping stations. The recurring need to pump greasetraps and refill with clean water is eliminated. No biological agents, enzymes and chemicals are required. User Friendly, Odour Free!