Extraction of Oleic Acid from Moroccan Olive Mill Wastewater

Table 6

Characteristics of the resulting soap.

Parameters	Values	Literature [63]	Methods
pH	8.7
Fatty acid	65.30%	64.60%	ISO 685 (determination of total alkali content and total fatty matter content)
Moisture	5.60%	5.00%	ISO 672 (determination of moisture and volatile matter content)
Combined alkali	8.85%	8.85%	ISO 456 (determination of free caustic alkali)
Chloride	3.70%	3.90%	ISO 457 (determination of chloride content—Titrimetric method)
Free alkali	0.10%	0%	ISO 684 (determination of total free alkali)
Glycerol	0.70%	0.70%	ISO 1066 (determination of glycerol content—Titrimetric method)