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New techniques in olive mill wastewater treatment (OMW)

Arvaniti, E. C.; Zaglis, D. P.; Papadakis, V.G. and Paraskeva, C.A. (2011) New techniques in olive mill wastewater treatment (OMW). In: Migliorini, Paola; Minotou, Charikleia; Lusic, Drazen; Hashem, Yousry and Martinis, Aristotelis (Eds.) Book of Abstracts of International Conference on ORGANIC AGRICULTURE and AGRO-ECO TOURISM in the Mediterranean, DIO.

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Summary

A new cost-effective system for complete exploitation of OMW is suggested, offering a viable solution to the problem of OMW disposal. Use of the proposed separation techniques prefiltration (PF), Ultrafiltration [UF], nanofiltration [NF], and reverse osmosis [RO]) produce byproducts that might include additional benefits. A pilot plant was developed in an olive mill operating in Achaia (Patras, Greece) during an olive harvesting season. Large volumes of OMW produced daily were treated systematically in a semibatch procedure to identify problems relevant to long-term behavior and reliability. The study showed that a fraction of pure water up to 75% can be recovered. Also fractions are isolated that contained concentrate nutritious and polyphenol content which can be further exploited in order to reduce the, indeed, high cost of the suggested treatment process. Finally, a feasibility-exploitation study was done to estimate if depreciation of the (indeed) expensive investment may occur in a short period of time. Together with the proposed method a synopis of commercially available techniques for the effective treatment of OMW is given. These techhnologies are based on biological, advanced oxidation, physicochemical and separation processes (composting, trickling filters, evaporation, oxidation, hydrolysis, co-digestion in a sewage treatment plant, production of solid fuels, etc).


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Food systems > Recycling, balancing and resource management
Environmental aspects > Air and water emissions
Crop husbandry > Production systems > Fruit and berries > Olive
Research affiliation: Greece
International Conferences > 2011: Organic Agriculture and Agro-Eco tourism in the Mediterranean
ISBN:978-960-85961-7-7
Related Links:http://www.abmconference2011.org/
Deposited By: Migliorini, Dr Paola
ID Code:19835
Deposited On:29 Nov 2011 15:31
Last Modified:29 Nov 2011 15:31
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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