Treatment performance of oily wastewater using ceramic membranes

The purpose of this project is to evaluate the oily wastewater treatment performance of inorganic membranes. An inorganic membrane is a porous fine ceramic filter, which is sintered from Alumina or Titania, Zirconia oxide under ultra-high temperature. The macro porous support ensures the mechanical resistance while the active layer allows for the separation. Based on the pore size a category is set, ranging from microfiltration, ultrafiltration and even nanofiltration. To study its performance, we have investigated the effects of transmembrane pressure, cross flow velocity and feed temperature. This system could easily produce permeate with oil and grease content that meets the National Discharge Standard. However, the point of this research is to obtain the maximum permeate flow and the best effluent quality by high permeation flux at low operational costs