Olive Mill Waste-Based Anaerobic Digestion as a Source of Local Renewable Energy and Nutrients

Mohamed Aboelfetoh, Amro Hassanein, Mohamed Ragab, Mohamed El-kassas and Ezzat R. Marzouk
Additional contact information
Mohamed Aboelfetoh: Department of Soils & Water, Faculty of Environmental Agriculture Sciences, Arish University, Arish 45516, North Sinai, Egypt
Amro Hassanein: Department of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USA
Mohamed Ragab: Department of Soils & Water, Faculty of Environmental Agriculture Sciences, Arish University, Arish 45516, North Sinai, Egypt
Mohamed El-kassas: Department of Soils & Water, Faculty of Environmental Agriculture Sciences, Arish University, Arish 45516, North Sinai, Egypt
Ezzat R. Marzouk: Department of Soils & Water, Faculty of Environmental Agriculture Sciences, Arish University, Arish 45516, North Sinai, Egypt

Sustainability, 2022, vol. 14, issue 3, 1-18

Abstract: This study focused on what combination of anaerobic digestion (AD) temperature (ambient, mesophilic, and thermophilic) and olive mill waste (OMW) to dairy manure (DM) ratio mixture delivers the desired renewable energy and digestate qualities when using AD as olive mill waste treatment. OMW is widespread in the local environment in the North Sinai region, Egypt, which causes many environmental hazards if left without proper treatment. Three different mixtures consisting of OMW, dairy manure (DM), and inoculum (IN) were incubated under ambient, mesophilic, and thermophilic conditions for 45 days. The results showed that mixture B (2:1:2, OMW:DM:IN) at 55 °C produced more methane than at 35 °C and ambient temperature by 40% and 252%, respectively. Another aim of this study was to investigate the effects of the different concentrations of the digestate taken from each mixture on faba bean growth. The results showed that the maximum fresh weight values of the shoot system were observed at 10% and 15% for mixture B at ambient temperature. The best concentration value for the highest root elongation rate is a 5% addition of digestate mixture A at 55 °C, compared with other treatments.

Keywords: anaerobic digestion; biogas; olive cake; dairy manure; mesophilic; thermophilic (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/3/1402/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/3/1402/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:3:p:1402-:d:734503

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().