PHYSICOCHEMICAL CHARACTERIZATION OF OLIVE OIL MILL WASTE WATERS IN THE NORTHERN REGION OF JORDANABEER AL-BSOUL, HUSSAM E. ALKHASAWNEH, MOMAMMAD AL-SHANNAG, MEHAYSENMAHASNEH, ABDULRAHMANQTEISHAT AND MOHAMMAD ALNAIEFAbstract The target of this study was to achieve a physicochemical characterization of olive oil mill wastewaters (OMWW). Samples were collected from six different mills in northernregion of Jordan(eastern neighborhood of Houfa, Kufranjah-Ajloun, Bushra, Tebneh, and Irbid). Olive oil mill wastewater samples were being tested for chemical oxygen demand (COD) and biochemical oxygen demand (BOD), pH, salinity, density, electrical conductivity (EC), total phenolic content, total suspended solids (TSS) and total solids (TS). The results presented in this study showed significant variations in these properties for each mill depending on the composition of OMWW. The results of the physicochemical analysis demonstrated that all the samples of olive oil mill wastewaters have an average values of about 5.0, 0.85-1.15 g/mL, 2.4-3.3 ppt, 22.5-30.1 mS/cm for pH, density, salinity, and electrical conductivity, respectively. It was found that the OMWW samples were rich in organic matter in terms of BOD and COD. They have average values of 7725-10200 mg/L and 44800-63870 mg/L for BOD5and COD, respectively. In addition, the average values of total suspended solid (TSS) were in the range of 20-42.8 g/L. Finally, the contents of Phenolic compounds in olive oil mill wastewaters had values between1.5 and 2.3 g/L.
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