A grease trap (also known as grease interceptor, grease recovery device and grease converter) is a plumbing device (a type of trap) designed to intercept most greases and solids before they enter a wastewater disposal system. Common wastewater contains small amounts of oils which enter into septic tanks and treatment facilities to form a floating scum layer. This scum layer is very slowly digested and broken down by microorganisms in the anaerobic digestion process. Large amounts of oil from food preparation in restaurants can overwhelm a septic tank or treatment facility, causing release of untreated sewage into the environment. High-viscosity fats and cooking grease such as lard solidify when cooled, and can combine with other disposed solids to block drain pipes. Grease traps have been used since Victorian days: Nathaniel Whiting obtained the first patent in the late 1800's. The traps reduce the amount of fats, oils and greases (FOGs) that enter sewers. They comprise boxes within the drain run that flows between the sinks in a kitchen and the sewer system. They only only kitchen waste water flowing through them, and do not serve any other drainage system, such as toilets. They can be made from many different materials, such as stainless steel, plastics, concrete & cast iron. They range from 35 liter capacity to 45,000 liters and greater. They can be located above ground, below ground, inside the kitchen or outside the building. from https://greasetrapplumber.blogspot.com/2018/09/the-importance-of-good-grease-trap.html
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Grease Trap Plumber
Grease trap sizing is based on the size of the compartment sink, dishwasher, pot sinks, and mop sinks. The cumulative flow rates of these devices, as well as overall grease retention capacity are considered. Currently, ASME Standard is being adopted by both of the National Model Plumbing Codes that cover most of the US. This standard requires that grease interceptors remove a minimum of 90% of incoming FOGs. It also requires that grease interceptors are third-party tested and certified to 90 days compliance with the standard pumping. This third-party testing must be conducted by a recognized and approved testing laboratory. ArchivesNo Archives Categories |