Grease traps (also recognized as grease interceptors, grease recovery products and grease converters) are actually plumbing devices created to intercept most greases and solids before they get into a wastewater disposal system. Common wastewater contains small quantities of oils which enter into septic tanks and treatment facilities to create a floating scum layer.
This particular scum layer is quite gradually digested and broken down by microorganisms in the anaerobic digestion procedure. Nevertheless, really considerable amounts of oil from food production in restaurants and kitchens are able to overwhelm the septic tank or maybe treatment facility, causing a release of untreated sewage into the ecosystem.
Additionally, increased viscosity fats and cooking greases like lard solidify when cooled, and may incorporate along with other disposed solids to create blockages in drain pipes.
Grease traps have been utilized after the Victorian days, though Nathaniel Whiting obtained the very first patent for a modern day grease trap in the late 1800s. They’re employed to minimize the quantity of fats, greases and oils (FOGs) that enter the primary sewers. Successfully they’re boxes to the drain run which passes between the sinks in a kitchen to the sewer phone.
They have only kitchen waste water moving through them and aren’t served by some other drainage system like toilets. They may be created from a variety of diverse materials; e.g. stainless steel, plastics, concrete & cast iron. They range from thirty gallon capacity to 45,000 gallons and above capacity. They may be located above ground, below ground, inside the kitchen or perhaps outside the structure.
Restaurant and foodservice kitchens create a great deal of waste grease that is contained in the drain lines from the different sinks dishwashers and cooking equipment like industrial woks and combi ovens. If they are not removed the grease is going to congeal inside the sewer and cause blockages and back ups.
In the UK, sewers back up annually “an estimated 100,000 times and municipal sewer overflows on 10,000 occasions”. The EPA has determined that sewer pipe blockages are actually the leading cause of sewer overflows, and grease is actually the main reason for sewer blockages. Even when accumulated FOG doesn’t escalate into blockages and sanitary sewer overflows, it is able to disrupt wastewater utility operations and increase operations and maintenance requirements”
For these reasons, based on the land, almost all municipalities require professional kitchen operations to install a little sort of interceptor device to gather the grease before it enters the sewer. Additionally where FOG is actually a concern in the neighborhood wastewater collection system towns have set up inspection programs to make certain that these grease traps and also interceptors are now being maintained on a regular schedule.
It’s estimated fifty % of all the sanitary sewer overflows are actually triggered by grease blockages with more than ten billion gallons of raw sewage spills annually.
The way it Works
A conventional grease trap isn’t a food disposal unit. Unfinished food should be scraped into the garbage or even food recycling bin. Milkshakes, gravy, sauces and food solids must be scraped off the dishes before they get into the sink or perhaps dishwasher.
To make an effort to keep a little amount of efficiency there continues to be a trend to specify larger and larger traps. Regrettably, giving a big tank for the effluent to stand also would mean that food waste scraps have some time to settle to the bottom part of the tank, further reducing the available volume and adding to the clean out issue.
Additionally, rotting food found within an interceptor breaks down producing poisonous waste (i.e. sulfur gases) – hydrogen sulphide combines with the water present to produce sulphuric acid. This attacks gentle steel and concrete materials resulting in “rot out”. A larger interceptor isn’t a much better interceptor.
As it’ll have been in the trap for some time, grease collected by doing this would have been contaminated and it is unsuitable for more use. This particular sort of grease is described as brown grease.
To purchase a Grease Trap / Interceptor for the business restaurant of yours or maybe food service small business is able to prove to become a lucrative investment.