Waste oil centrifuge
WVO Centrifugal Separation
Organic solids (flour etc.) are the main solid contaminants of WVO. These solid particles are lighter than metal particles found in used engine oil. Thus, separation of fine sediment from waste vegetable oil (WVO) needs high g-force.
Waste oil decanters (for high sludge applications)
Waste oil decanters are well suited for de-sludging of high sludge waste oil. Refinery waste slop and tank bottom sludge are typical examples. This process is also known as sludge thickening. A decanter centrifuge handles high levels of sludge (up to 40%) on a continuous basis. Alfa Laval decanters replace belt-presses and screw presses in many demanding high-sludge applications.
Waste oil filter versus centrifuge:
Industrial scale waste oil purification system setup.
Centrifuges offer several advantages over filters, such as:
- Total mechanical separation eliminates the need for filter media and labor costs.
- Continuous separation without the downtime/labor associated with filter replacement.
- High g-force allows the centrifuge to separate particles down to 0.5µ level.
- A waste oil centrifuge will also separate all free water.
Waste streams are generated by all industries as well as by municipalities. Industrial waste-streams such as from bakeries, food industry, rendering plants, paint manufacturers, farm manure etc. requires sludge removal before it can be discharged into the sewer or other fluid disposal.
A decanter centrifuge (as shown here) is a cost effective solution to this disposal challenge. It is a large-scale, continuous de-sludging centrifugal machine which does not use any filter media and works by mechanical separation using high g-force for separation. Follow this link to see how a decanter centrifuge is used for sludge dewatering or sludge thickening.