Anaerobic digestion and co-digestion processes of vegetable and fruit residues: Process and microbial ecology

García-Peña, E. I.; Parameswaran, Prathap; Kang, Dae Wook; Canul-Chan, M.; Krajmalnik‐Brown, Rosa

doi:10.1016/j.biortech.2011.07.068

Cited by 254 publications

(111 citation statements)

References 28 publications

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“…Hence, the stability parameters for a highly biogasification especially depend on temperature, HRT, OLR and substrate content in the feeding. For that reason, many authors have investigated about these parameters (Garcia-Pena et al 2011;Wu et al 2010). Furthermore, the most functional parameters for evaluating the efficiency of biogas production are the reduction in VS or COD (Debik and Coskun 2009;Demir et al 2011;Demirer and Chen 2005;Razaviarani et al 2013;Yangin-Gomec and Ozturk 2013;Ye et al 2013).…”

Section: Important Parameters For Operating and Performancementioning

confidence: 99%

Effects of co-substrate on biogas production from cattle manure: a review

Tufaner

Avşar

2016

Int. J. Environ. Sci. Technol.

106

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This literature review surveys the previous and current researches on the co-digestion of anaerobic processes and examines the synergies effect of co-digestion with cattle manure. Furthermore, this review also pays attention to different operational conditions like operating temperature, organic loading rate (OLR), hydraulic retention time (HRT), chemical oxygen demand (COD) and volatile solid (VS) removal efficiency and biogas or methane production. This review shows that anaerobic mono-digestion of cattle manure usually causing poor performance and stability. Anaerobic studies were generally performed under mesophilic conditions maintained between 35 and 37°C. Organic waste loading rate generally ranges from 1 to 6 g VS-COD L -1 day -1 stable condition in anaerobic digester. Generally, studies show that HRT for co-digestion of fruit-vegetables waste and industrial organic waste appears to exceed 20 days. However, the anaerobic co-digestion process is generally operated at HRT of between 10 and 20 days. VS and COD removal efficiency usually reaches up to 90 % due to codigestion with different type organic waste. Methane-biogas production is generally obtained between 0.1 and 0.65 L CH 4 -biogas g -1 VS.

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Section: Important Parameters For Operating and Performancementioning

confidence: 99%

Effects of co-substrate on biogas production from cattle manure: a review

Tufaner

Avşar

2016

Int. J. Environ. Sci. Technol.

106

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“…Results, previously reported by Garcia-Peña et al [6] are shown at Table 1. The specific values of some puree characteristics are shown at Table 2.…”

Section: Purees Characterizationmentioning

confidence: 61%

“…The largest market is the Central de Abastos (CEDA), which commercializes 24,000 tons of food products and produces 895 tons of organic solid waste each day. The waste produced by CEDA is conveniently separated at the source, and is an ideal candidate for energy production using anaerobic processes [6]. Vegetable and fruit waste produced in markets is considered as a potential source to generate energy due to its higher organic composition and easily biodegradable nature.…”

Section: Bio-hydrogen Production From Vegetable and Fruit Wastes Fvwmentioning

confidence: 99%

Rheological Characterization of a Mixed Fruit/Vegetable Puree Feedstock for Hydrogen Production by Dark Fermentation

Gómez-Romero¹,

García-Peña²,

Ramírez-Muńoz³

et al. 2014

ACES

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Bio-hydrogen (Bio-H 2 ) production from the organic fraction of solid waste, as fruit and vegetable wastes, constitutes an interesting and feasible technology to obtain clean energy. In spite of the feasibility to produce Bio-H 2 from fruit/vegetable wastes (FVW), data about its rheological characterization are scarce. This information is useful to establish the hydrodynamic behavior, which controls the overall mixing process when the feedstock for Bio-H 2 production process is a mixture of FVW. In this work, the rheological behavior of a vegetable/fruit waste mixture was characterized. The effect of the solids content (%, w/w), temperature, time (tyxotropy effects) and shear rate over the apparent viscosity of the mixture was evaluated. Most of the mixtures showed non-Newtonian behavior. The curves are typical rheofluidizing fluids. The rheological curves were different at increasing solids contents (80%, 60%, 40% and 30%), independent from the temperature. Rheological data were fitted to the power law model. Correlation factors R2 for the different mixtures were 0.991 -0.995 for 80%, 0.961 -0.986 for 60%, 0.890 -0.925 for 40%. In the case of 30% of solids, the R2 value was not acceptable, and it was also found that this mixture was very near to the Newtonian behavior. Calculated activation energies (Ea) values were 15.98, 14.89 and 20.96 kJ/mol for the 80%, 60%, 40% mixtures, respectively. FVW purees rheological behavior was well characterized by Carbopol solutions at given concentrations and pH values. This fluid can be used as a model for other studies, e.g. LDA (Laser Doppler Anemometry) and PIV (Particle Image Velocimetry).

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“…Their abundance in a digester is dominant because of the availability of VFAs. The phylum fermicutus majorly have two classes: Clostrdia (13%) and Bacilli (76%) [30]. The clostridium Under anaerobic conditions Clostridium species are abundant degraders [33].…”

Section: Molecular Identificationmentioning

confidence: 99%