WASTE GREASE EXTRACTION
Trap grease comes into the waste water treatment plant through two routes: (1) by grease haulers who pump trap grease directly from grease traps and (2) flowing with waste water through sewer pipelines. The 1st type of trap grease usually contains fewer solids, which makes it easy to separate FOG from trap grease through filtration. 2nd type, on the other hand, is collected from the skimmers of the primary settling tank and hence contains a lot more solids, but its annual generation is several folds larger too. Current there are few biodiesel producers can utilize 1st type of trap grease, however due to the high level of solid concentration, the 2nd type of trap grease remains unexploited. Our patent-pending Waste Grease Extraction (WGE) process is the technology that allows us to utilize both types of trap grease by separating over 99% of the energy-rich FOGs out of the trap grease, even with presence of significant amount of solids. These FOGs are then refined into PureFOG, our product, a feedstock for biodiesel production. WGE is a proven process that can separate and can be easily deployed in any waste water treatment plant that has the needs to reduce the trap grease management issues.