Liquid waste treatmant of edible oils industry in egypt

This work includes a study of treating industrialwaste waters resulting from five of the largest edibleoil manufacture works in Egypt, four of which lie inAlexandria, and the fifth in Zagazig.As the industrialwaste waters of these works are discharged directly inT.1ahmoudia stream and Mar-u L t lake wi th respect toAlexandria and in Chiba drainage Canal with respectto Zagazig, the proGram followed in the present workincluded the physical and chemical analysis of the wastesresulting from the different processing steps as wellas the mixed wac t e s of each factory. The second mainitem of the program was the study and evaluation ofdifferent treatment operations for the wastes beforefinal disposal.It has been found that the waste waters differ intheir physical and chemical characteristics. The rHvalue ranged from 7.5 to 12.5, the principal componentsof pollution include fatty and orGanic dissociateablematter, and excessive salt concentrations, particularlysodiwn chloride. Dd e ao Lve d oxygen did not exist inmost of the liquid wastes resulting from the different