The use of clinker as a filtering medium is a new method for treating the waste water from olive mills (OMWW). which is a highly toxic effluent for the environment due to its high organic load and its huge concentration of phenolic compounds as confirmed by HPLC analysis. Scanning electron microscopy (SEM). Energy-dispersed X-rays (EDX). https://www.roneverhart.com/Western-Digital-Ultrastar-DC-HC550-WUH721816ALE6L0-0F38460-16TB-7-2K-RPM-SATA-6Gb-s-512e-ISE-3-5in-Hard-Drive/