Title : Comparison study between the semi-automatic press and the super press for olive crushing: case of seddouk locality (Northeast Algeria)
The olive industry is of great importance and interest for the populations in Algeria. The cultivation of the olive tree is a legacy of the ancestors, which builds a great wealth but became a source of pollution caused by its by-products after trituration. This work is devoted to the study of the environmental situation generated by the olive industry; a survey is conducted at the Daïra of Seddouk in oil mills. After study and statistical analysis, the following results were obtained, 54 functional oil mills counted among 76 existing oil mills in 5 communes that constitute the constituency. These mills received 108.104 quintal of olive of 4 varieties, which are in order of abundance: Azeradj, Chemelal, Aimel and Tefahi. The pressure trituration represents 71%, by centrifugation 29%, of all the varieties taken together. The extraction by centrifugation gives 23884 hl of oil, i.e. 71%, whereas the pressure process produces 9527 hl, i.e. 29%. The centrifugation process produces more waste 51270 hectoliters of margine and 30762 quintals of olive, 16935 hl of margine and 9357 quintals of pressure-produced cucumber. The margines are thrown into the wild; on the other hand, the valorization of the olive pomace remains very insignificant.