Next Article in Journal
Development and Evaluation of Applicable Optimal Terminal Box Control Algorithms for Energy Management Control Systems
Next Article in Special Issue
Microalgae Potential and Multiple Roles—Current Progress and Future Prospects—An Overview
Previous Article in Journal
Human Impact on Vegetation Dynamics around Lhasa, Southern Tibetan Plateau, China
Previous Article in Special Issue
The Effect of the Invasive Plant Species Lupinus polyphyllus Lindl. on Energy Recovery Parameters of Semi-Natural Grassland Biomass
Article Menu

Export Article

Open AccessArticle

Energetic Valorization of Wet Olive Mill Wastes through a Suitable Integrated Treatment: H2O2 with Lime and Anaerobic Digestion

Department of Environmental and Chemical Engineering, University of Calabria, 87036 Rende, CS, Italy
Author to whom correspondence should be addressed.
Academic Editor: Michael Wachendorf
Sustainability 2016, 8(11), 1150;
Received: 17 August 2016 / Revised: 27 October 2016 / Accepted: 5 November 2016 / Published: 9 November 2016
(This article belongs to the Special Issue Biomass Energy Conversion)
PDF [1240 KB, uploaded 14 November 2016]


In the Mediterranean region, the disposal of residues of olive oil industries represents an important environmental issue. In recent years, many techniques were proposed to improve the characteristics of these wastes with the aim to use them for methane generation in anaerobic digestion processes. Nevertheless, these techniques, in many cases, result costly as well as difficult to perform. In the present work, a simple and useful process that exploits H2O2 in conjunction with lime is developed to enhance the anaerobic biodegradability of wet olive mill wastes (WMOW). Several tests were performed to investigate the influence of lime amount and H2O2 addition modality. The treatment efficiency was positively affected by the increase of lime dosage and by the sequential addition of hydrogen peroxide. The developed process allows reaching phenols abatements up to 80% and volatile fatty acids productions up to 90% by using H2O2 and Ca(OH)2 amounts of 0.05 gH2O2/gCOD and 35 g/L, respectively. The results of many batch anaerobic digestion tests, carried out by means of laboratory equipment, proved that the biogas production from fresh wet olive mill wastes is hardly achievable. On the contrary, organic matter abatements, around to 78%, and great methane yields, up to 0.34–0.35 LCH4/gCODremoved, were obtained on pretreated wastes. View Full-Text
Keywords: anaerobic digestion; hydrogen peroxide; methane; olive mill wastes anaerobic digestion; hydrogen peroxide; methane; olive mill wastes

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Siciliano, A.; Stillitano, M.A.; Limonti, C. Energetic Valorization of Wet Olive Mill Wastes through a Suitable Integrated Treatment: H2O2 with Lime and Anaerobic Digestion. Sustainability 2016, 8, 1150.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top