The olive oil industry produces large amounts of by-products. It is estimated that for every 100 kg of treated olives 35 kg of solid waste (olive cake) and from 55 to 2001 liquid waste are produced depending on the oil extraction process. Leaves represent 5% of the weight of olives in oil extraction.
Olive-Mill WasteWater (OMWW)
The OMWW composition is not constant — both qualitatively and quantitatively — and it varies according to:
i. composition of the vegetation water;
ii. olive oil extraction process;
iii. storage time.
i. The composition of the vegetation water varies according to:
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