Olive processing wastewater composition?
Olive processing wastewater composition?
(OP)
Does anyone have experience in treating the wastewater generated by a 2-phase olive oil extraction process? I haven't been able to find reliable data on the net regarding the strength of the wastewater or the complexity of the molecules in it. (including the COD and BOD values contained therein). If anyone has had any direct experience with it, it would be extremely helpful.
I need to design the wastewater treatment facility and was wondering what would be the best way to go about it, I want to avoid anearobic processes if at all possible to keep the price down.
Also, a mass balance of the process would be helpful if you know of one.
I need to design the wastewater treatment facility and was wondering what would be the best way to go about it, I want to avoid anearobic processes if at all possible to keep the price down.
Also, a mass balance of the process would be helpful if you know of one.





RE: Olive processing wastewater composition?
A typical process will involve crushing the raw materials to remove free oil. Then a solvent extraction is used to remove the rest of the oil from the crushed mash. The solvent extraction process then utilizes distillation to separate the oil and solvent. The solvent is then recycled back.
There is minimal wastewater and the wastewater is mainly generated in the cleanup of equipment.
RE: Olive processing wastewater composition?
RE: Olive processing wastewater composition?
You may want to get the book "An Introduction to Olive Oil Processing".
THe website:
http://www.oliveoilsource.com/olive_waste.htm
Has this quote:
"2 phase olive decanters require little added water and produce oil and a watery husk. In 2004 roughly 90% of Spain's 1,753 olive oil mills operate in a two-phase system. The watery husk is considered less of a disposal problem than the olive water produced in a 3 phase decanter. It can be spread back on the field, trucked to landfill or is occasionally dried onsite in commercially available dryers. The dryer may cost more than the decanter and consume high quantities of energy in the form of electricity, fossil fuels or by burning the subsequently dried husk. In all cases, greenhouse gasses and fumes are produced."
RE: Olive processing wastewater composition?
http://www.actahort.org/books/549/549_7.htm
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The 2-Phase Centrifugal Extraction of Olive Oil ..."produces no wastewater (margine) as such, it combines that wastewater that isgenerated with the solid waste (grignon) to produce a single effluent stream of semi-solid (30% solidby mass)"
RE: Olive processing wastewater composition?
unfortunately there is no real detailed information that I've been able to find, only general descriptions.
RE: Olive processing wastewater composition?
RE: Olive processing wastewater composition?
We're getting a pretty good rate for composting the solidsn at a somewhat local farm, but again we want to reduce that cost by as much as possible. if we can recycle the water and use it for irrigation we'd be saving that much more, it's the composition of this water I can't find.
correction for before, we want to work with 3-phase and not 2-phase.
RE: Olive processing wastewater composition?
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Olive processing wastewater composition?
It is doubtful that it is going to be economical to treat such a high strength waste, especially if the crops are seasonal.
RE: Olive processing wastewater composition?
RE: Olive processing wastewater composition?