Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

In this study, the calcium carbonate from onyx stone used as a pore-forming agent in ceramic membrane of kaolin, zeolite, and silica xerogel composites were investigated. Four different samples prepared with varying content 5 wt.% to 30 into composite then sintered at 1200oC. The structural properties sample was investigated detail using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), N2 adsorption-desorption isotherms. removal performance successfully tested during coconut sap treatment. It has been found that have porous structure made up interconnected pores their volume fraction depends on content. provides largest homogeneously its presence demontrates value for permeate flux rate initial phase. formed produced provide favorable conditions non-sugar impurities sap.