Elaboration of inorganic microfiltration membranes with hydroxyapatite applied to the treatment of wastewater from sea product industry

The obtained membrane was used to treat cuttlefish effluents generated from the conditioning seawater products industry. These industries consume a great amount of water. In Sfax (Tunisia), about 1000 m3/day are discharged in the littoral. Cross-flow microfiltration was carried out then, in order to reduce the turbidity and chemical oxygen demand (COD). The result showed a filtration flux of 125 l/h m2 and a high retention of turbidity (99%), colour and COD (92%).