Dear Deven, API 621 ...
Published by Marco Rognoni, Owner at WET, Water Edge Technologies
Dear Deven,
API 621 calculation method is based on the law of Stokes which is valid in general and can be applied to whatever size of oil droplets, nproviding that the density of oil is known and the viscosity of the water is estimated properly for the working temperature.
I often design for oil droplets of 25 micron, which normally ensures a removal efficiency of more than 95% i.e. reduction from 1000 to 50 ppm.
For better final performance a secondary treatment should follow such as Flotation or adsorption by NutShell Filters.
1 Comment
most of the mechanical separation system based on Stokes law, including hydrocyclone technology which takes only 1/10th of the space compare to API and works on single PD Pump and can separate oil droplet of up to 15 micron compare to API design which only separate more than 150 micron.
Published by deven g, Wyuna Separation Technology - Admin