Oil-Water Separation

There are several variables can significantly influence on the gravity oil-water separators performance, include: 1) flow rate [velocity through the separator], 2) oil gravity [density], 3) pH, and 4) temperature of the wastewater. The design flow rate (velocity through the unit ≤۳ feet per minute [fpm]) is critical for optimal performance. Lower pH (<7) enhances oil removal compared to higher pH (≥7). And as the wastewater temperature increases, oil removal through the unit will be improved.

Oil Trap

Most of the commercial restaurant and domestic house kitchen does not equip with the proper kitchen wastewater treatment. These wastes contain high concentrations of fat, oil, and grease (FOG) which are disposed into the sewerage network and increase the sanitary sewer overflow (SSO).
The most common and cheapest FOG treatment system is by using the gravity separation. However, in order to increase the efficiency of these systems, some of the researchers have been using natural materials to enhance the adsorption process of FOG. The establishment of a reliable FOG treatment system for each house based on the separation system might contribute effectively in the FOG removal concentration in the kitchen wastewater.

HOW DOES A GREASE TRAP WORk?

A grease trap is usually underground in an accessible area in the kitchen. When wastewater flows to grease trap, fats, oils and greases floats, while solids settle down the water to flow through and on to the city sewer system and the municipal water supply.
While grease traps separate FOG materials entering wastewater through dish washing, it’s very important not to pour grease directly down the drain. Grease can solidify as it travels through pipes, clogs and overflows that damage your plumbing system and potentially your local city sewage system.