An API oil–water separator is a device designed to separate gross amounts of oil and suspended solids from industrial wastewater produced at oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial oily water sources.

Oct 20, 2016 · The API separator is normally the first, and arguably, most important wastewater treatment step in petroleum refineries. The primary function of a properly designed API separator is to remove the majority of oil and suspended solids from refinery wastewater before it enters downstream wastewater treatment processes.

Monroe Environmental API Oil/Water separators are designed per American Petroleum Institute standards (API) for above and below ground installations. The Monroe API Separator is designed for the removal of free oil and solids.

Our API separators treat and remove up to 80 percent of oil from refinery process water and storm run-off. If emulsification is minimal, a greater percentage of oil may be removed.

E.g. sampling of WWTP influent and effluent provides confirmation of concentration discharged from both the manufacturing operation and the site and allows actual API removal efficiency to be determined.

Monroe Environmental custom oil/water separators are designed per American Petro-leum Institute standards (API) for above and below ground installations. The Monroe API Separator is designed for the removal of free oil and solids.

The term “API separator” stands for American Petroleum Institute (API system) oil-water separator. They are designed to separate free oil and suspended solids from wastewater, making it appropriate for discharge or further treatment.

API separator uses a special diffusion baffle to diffuse the flow prior to the separation chamber. Oil skimming utilizes the specific gravity differential between lighter oil and heavier water. The oil floats on the surface and in so doing displaces the water.

In most petroleum refineries, the API separator is the first and most significant wastewater treatment step. A correctly built API separator's principal role is to separate the bulk of oil and suspended particles from refinery wastewater prior to downstream wastewater treatment.

Designed according to API 421, WesTech Oil/Water Separators combine state-of-the-art separation, skimming and sludge transport technologies into a highly efficient primary oil separation device. Removing the bulk of free oils and greases from the plant wastewater stream reduces overloading and other problems in downstream treatment processes.