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Anaerobic co-digestion of oil-extracted spent coffee grounds with various wastes: Experimental and kinetic modeling studies    
Yazarlar (12)
Doç. Dr. Muhammed Raşit ATELGE Doç. Dr. Muhammed Raşit ATELGE
Siirt Üniversitesi, Türkiye
Atabani Abdulaziz
Serdar Abut
Siirt Üniversitesi, Türkiye
Mustafa Kaya
Siirt Üniversitesi, Türkiye
Cigdem Eskicioglu
Semaan Georgeio
Changsoo Lee
Yalçın Şevki Yıldız
Erciyes Üniversitesi, Türkiye
Sebahattin Ünalan
Erciyes Üniversitesi, Türkiye
Ranganathan Mohanasundaram
Fatih Duman
Erciyes Üniversitesi, Türkiye
Gopalakrishnan Kumar
Devamını Göster
Özet
The effect of oil extraction from spent coffee grounds as a pre-treatment strategy prior to anaerobic digestion besides assessing the feasibility of defatted spent coffee grounds co-digestion with spent tea waste, glycerin, and macroalgae were examined. Mesophilic BMP tests were performed using defatted spent coffee grounds alongside four co-substrates in the ratio of 25, 50, and 75%, respectively. The highest methane yield was obtained with the mono-digestion of defatted spent coffee grounds with 336 ± 7 mL CH4/g VS and the yield increased with the increase in the mass ratio of defatted spent coffee grounds during co-digestion. Moreover, defatted spent coffee grounds showed the highest VS and TS removal at 35.5% and 32.1%, respectively and decreased thereafter. Finally, a linear regression model for the interaction effects between substrates was demonstrated and showed that distinctly mixing defatted spent coffee grounds, spent coffee grounds, and spent tea waste outperforms other triple mixed substrates.
Anahtar Kelimeler
Anaerobic digestion | Biofuels | Defatted spent coffee grounds | Kinetic study | Oil extraction
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Bioresource Technology
Dergi ISSN 0960-8524
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 02-2021
Cilt No 322
Sayı 124470
Sayfalar 1 / 10
Doi Numarası 10.1016/j.biortech.2020.124470
Makale Linki http://dx.doi.org/10.1016/j.biortech.2020.124470