Olive mill wastewater and wine by-products valorization by co-composting

Composting is a process transforming the organic matter by an aerobic biological process,allowing the organic matter degradation and stabilization. the resulting product is the compost,a soil organic amendment. the study aims,on the one hand,the waste valorization as well as the development of the green waste and agro-industrial discharges: the olive mill wastewater and the wine by-products,by co-composting,and on the other hand,the quality assessment of the produced compost through aerated window. furthermore,the progress of the physico-chemical parameters (ph,electrical conductivity,temperature,c/n ratio) was achieved during all the process. the biological system stability was noticed at approximately two months. consequently,the final product was neutral and rich in fertilizing elements. its heavy metal content was within the standard required limits and didn't represent any phytotoxic effect. © 2017,university of mohammed premier oujda morocco.