Optimal Grease Trap Performance
Introduction:
Grease traps can be found in virtually all food service kitchens . By design, a grease trap not only traps grease, but it also traps other solid food material. The purpose of a grease trap is the on-site collection of food waste that would otherwise flow directly to the municipal waste water treatment facility. As the waste collects, the trap becomes less efficient and finally reaches the point where it becomes clogged and fails. Trap failure results in drain back-ups and the release of obnoxious odours into the food handling establishment.
Once it has failed, the trap will require pumping and cleaning. The result is added expense and inconvenience for the management of the food service facility, and offensive odours for the patrons. As demonstrated on the front of this information sheet, the use of GREASE GOBBLER specially selected bacteria will significantly reduce the need for pumping while, controlling obnoxious odours commonly associated with a grease trap.
Procedure:
one trap was treated with GREASE GOBBLER once per day, After six weeks, both traps were tested for levels of fat, oils, and grease (FOG), biochemical oxygen demand (BOD), and volatile fatty acids (odour).
Results:
The test results demonstrated a dramatic difference between the control trap and the trap treated with GREASE GOBBLER This difference can be seen in Pictures I and 2. These pictures are a side view of the grease traps. As depicted in these pictures, the untreated trap has a substantially greater accumulation of solids than the treated trap. In fact the solids level in the control trap is at the point where it will soon clog and cause an odour-releasing backup.
Table 1. Quantitative Results of Grease Trap Study
Parameter |
Percent of
Reduction |
Fat, Oils, and Grease (FOG) |
79% |
Biochemical Oxygen Demand |
80% |
Volatile Fatty Acids (odour) |
96% |
Summary:
Untreated grease traps need to be pumped frequently, at significant expense, and emit obnoxious odours, often in the middle of a working kitchen or other food handling facility. Additional expense is often incurred by the fines and surcharges that are imposed by a municipality due to elevated levels of BOD, FOG and suspended solids.
As demonstrated by the photographs and test data presented, the addition of GREASE GOBBLER significantly reduces the level of fats, oils, greases, solids and odours in grease traps.
Due to legislative, environmental, and maintenance issues the use of GREASE GOBBLER cost effective biological additive is essential for a properly maintained grease trap.