img
img
Semi-continuous mesophilic anaerobic digestion of date palm (Phoenix dactelifyra L.) leaflets of the Hmira cultivar from the Adrar region of Southern Algeria using an alkaline pre-treatment   
Yazarlar (10)
Fethya Salem
Mohammed Djaafri
Kamel Kaidi
Doç. Dr. Muhammed Raşit ATELGE Doç. Dr. Muhammed Raşit ATELGE
Siirt Üniversitesi, Türkiye
Mostefa Khelafi
Ahmed Tahri
Balla Soumia
Abdelmadjid Habchi
Slimane Kalloum
Abdulazız Atabanı
Türkiye
Devamını Göster
Özet
This research paper aim to investigate the enhancement potential of mesophilic Anaerobic Digestion (AD) of Algerian date palm (Phoenix dactylifera L.) leaflets from H'mira cultivars using an alkaline pretreatment approach. The experiment was conducted for the first time in semi-continuous digesters. NaOH was applied at various percentages (6 %, 12 % and 18 %) to chemically pretreat the substrate for 5 days at 37 °C. The chemical pretreatment results were interpreted for the first time with in-depth FTIR spectroscopic analyses. The Hydraulic Retention Time (HRT) was fixed at 15 days, and the Organic Loading Rate (OLR) at 2 g MO/L/day. The results showed that the methane (CH4) production values were stabilized with a clear distinction at averages of 211.85, 177.26, 143.36 and 123.07 ml of CH4/day, i.e. a CH4 yield of 105.92, 88.63, 71.68 and 61.53 ml of CH4/gVS/day for the reactors containing substrates pre-treated with 12 %, 6 %, 18 % NaOH and the substrate without pre-treatment respectively. Compared to the substrate without pre-treatment, the CH4 production rates were improved 1.72, 1.44 and 1.16 times for the reactors containing 12 %, 6 % and 18 % NaOH respectively. These findings were perfectly in accordance with FTIR spectroscopy results. These findings demonstrate that the semi-continuous AD process can be an attractive energy recovery solution from such waste compared to batch digesters, (on one day, it produce 77–105 % of the CH4 produced during 21–55 days in batch digesters), as well as the importance of adequate pre-treatment prior to the AD. FTIR Spectroscopic analysis technology can also be widely used to analyze pre-treatment data for lignocellulosic biomass, as it gives very encouraging results.
Anahtar Kelimeler
Anaerobic digestion | Biogas | Biomethane | Date palm waste | Semi continuous digesters
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Process Safety and Environmental Protection
Dergi ISSN 0957-5820
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 07-2024
Cilt No 187
Sayı 1
Sayfalar 385 / 397
Doi Numarası 10.1016/j.psep.2024.04.114
Makale Linki http://dx.doi.org/10.1016/j.psep.2024.04.114