PROCESS FOR RECOVERING THE COMPONENTS OF OLIVE MILL WASTEWATER WITH MEMBRANE TECHNOLOGIES

摘要

Process for totally recovering he chemical components of olive mill wastewater enabling the recovery of the polyphenolic compounds contained therein, the reuse of the concentrate residues for the production of fertilizers and possibly biogas, and the obtaining of a highly purified aqueous product which can also be used as a basic component for beverages. The process includes adjusting the pH of the freshly produced wastewater to within an acidic range, and an enzymatic hydrolysis followed by separation of the permeate streams obtained, by means of centrifugation and subsequent treatments with membrane technologies, consisting of microfiltration, ultrafiltration, nanofiltration and reverse osmosis.