Sustainable Environmental Management and Valorization Options for Olive Mill Byproducts in the Middle East and North Africa (MENA) Region
Open Access
- 4 June 2020
- Vol. 8 (6), 671
- https://doi.org/10.3390/pr8060671
Abstract
Cultivation of olive trees and olive oil production have been considered as a legacy for the Mediterranean region. This custom represents a very important benefit for many nations in terms of wealth and health. However, huge amounts of by-products and waste are generated during olive oil production. This represents a serious environmental impact on land and water bodies if not properly handled. Olive oil extraction generates two waste streams, a solid waste called pomace and olive mill wastewater (OMWW), which has been considered as highly pollutant and phytotoxic waste. These wastes have high disposal costs and predominantly generated from small-scale enterprises that have limited financial resources to treat them properly before discharge to the environment. Besides being a serious environmental problem, OMWW has potential economic value that remains to be utilized such as: fertilizers, valuable antioxidants agents and fatty acids needed in human diet. Also, Olive pomace is a valuable renewable energy source with an energy density of 23 MJ/kg and has become an inexpensive alternative for fossil fuels. Aiming at adding value to the olive production sectors and potential valorization options for byproducts in the MENA region, international practices applied in olive mills wastes management’s and treatment methods used in major oil producing countries are presented.Keywords
Funding Information
- King Abdulaziz University (G-658-135-1441)
This publication has 118 references indexed in Scilit:
- Olive mill wastes: Biochemical characterizations and valorization strategiesProcess Biochemistry, 2013
- Direct Measurement of Oleocanthal and Oleacein Levels in Olive Oil by Quantitative 1H NMR. Establishment of a New Index for the Characterization of Extra Virgin Olive OilsJournal of Agricultural and Food Chemistry, 2012
- Treatment of Olive Mill Wastewater with Constructed WetlandsWater, 2012
- Effects of amendment with treated and untreated olive oil mill wastewaters on soil properties, soil humic substances and wheat yieldGeoderma, 2007
- A study of the natural biodegradation of two-phase olive mill solid waste during its storage in an evaporation pondWaste Management, 2006
- An overview on olive mill wastes and their valorisation methodsWaste Management, 2006
- Technologies for olive mill wastewater (OMW) treatment: a reviewJournal of Chemical Technology & Biotechnology, 2006
- Fungal enzymes as a powerful tool to release simple phenolic compounds from olive oil by-productProcess Biochemistry, 2005
- Ruminal degradability and in vitro intestinal digestibility of sunflower meal and in vitro digestibility of olive by-products supplemented with urea or sunflower meal: Comparison between goats and sheepAnimal Feed Science and Technology, 2003
- Detrimental effects of high molecular-mass polyphenols on olive mill wastewater biotreatmentProcess Biochemistry, 2000