Grease Trap

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grease trap

[′grēs ‚trap]
(civil engineering)
A trap in a drain or waste pipe to stop grease from entering a sewer system.

Grease Trap


a chamber for separating and retaining fats and petroleum and other oils from effluent water by cutting the flow rate. The fatty materials in the effluent upset the purification plants (biofilters and filter beds), and when they fall into a reservoir, they cover a large area of water with a thin film that hinders access to oxygen and thus retards the reservoir’s self-purification processes. Further, the fats and similar substances are a valuable raw material, which can be processed for commercial purposes. Grease traps are set up at effluent outfalls of individual buildings (restaurants, factory kitchens, meat combines, canning factories, and other industrial concerns), as well as in public sewers. The time of stay of effluent in a grease trap is 5 seconds to 15 minutes, with a flow speed of up to 10 cm per sec. Depending on the amount of fat held back, the latter is removed by a pump or suction arrangement, with heating to 45°-50°C.

grease trap, grease interceptor

grease trap
A device for removing grease from waste water by allowing the retained liquid to cool and the grease to solidify; then the grease is separated by flotation; it rises to the top of the trap, where it is held.
References in periodicals archive ?
BlackGold Biofuels of Charlotte receives grease trap waste from wastewater haulers that is generated in commercial and institutional kitchens during dishwashing and food preparation.
Grease trap cleaning companies have to install high-tech GPS tracking devices to locate and monitor their tankers and staff before they renew their permits next year.
STURBRIDGE - Town officials are waging war against violators of the grease trap maintenance rule.
We advise businesses to install a compliant grease trap which should be regularly maintained by a specialist contractor.
Sewerage operations controller Andrew Blakemore said businesses are advised to install a grease trap.
The liquid bio-concentrate provides a superior and cost-effective alternative to oil-water separators, drain care products, and grease trap maintenance products.
yd kitchen grease trap free was a messy, odious and expensive task for David Turnball - a twice weekly operation.
Aqua Wastewater Management specializes in grease trap work, and Mopac specializes in fryer grease pickup work.
SLM is positioned nationwide within the hospitality industry, providing the management and consolidation of grease trap and jetting services for commercial kitchens, including the management and diversion of waste streams.
Dubai Grease and oil waste generated by hotels and restaurants must be collected by authorised companies and finally reach the Alserkal Envirol Grease Trap Waste Recycling Plant in Al Aweer, the Dubai Municipality said.
The civic body has announced hefty penalties on cleaning companies illegally dumping the grease trap waste or mixing it with sewage water.