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Fatberg-fighting tech could save cities billions in sewer cleaning | Giant solidified masses of fat, grease, and other waste threaten to clog sewer lines and cause huge spillages in cities worldwide.
Giant solidified masses of fat, grease, and other waste threaten to clog sewer lines and cause huge spillages in cities worldwide. Researchers at RMIT have developed two novel ways to prevent these blocks of waste from forming.
The researchers' design looks like a conventional grease trap on the outside, but actually features a a series of physical baffles which slow the flow of wastewater and separate larger fat particles. The system isn't perfect yet, though: the researchers are working to incorporate fluid dynamics principles so they can enhance FOG removal without the need for chemical treatment – so it can be commercialized in line with public infrastructure regulations. First, they mimicked the setting in which fatbergs form using concrete blocks (similar to sewer pipes) and synthetic FOG water under controlled conditions over the course of 30 days.
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