Maximum organic loading rate for the single-stage wet anaerobic digestion of food waste

Nagao, Norio; Tajima, Naoki; Kawai, Masahiro; Niwa, Chiaki; Kurosawa, Norio; Matsuyama, Tatsushi; Yusoff, Fatimah Md.; Toda, Tatsuki

doi:10.1016/j.biortech.2012.05.045

Cited by 244 publications

(85 citation statements)

References 31 publications

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“…It might be due to higher fraction of food waste used in M1 as compared to other substrate mixtures. It is well known that food waste contains about 75% of very easily biodegradable organic matter (Nagao et al, 2012).…”

Section: Effect Of Co-substrate Mixing Ratios On Solids Reductionmentioning

confidence: 99%

Effect of mixing ratio of food waste and rice husk co-digestion and substrate to inoculum ratio on biogas production

Haider

Sheikh

Yousaf

et al. 2015

Bioresource Technology

169

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Section: Effect Of Co-substrate Mixing Ratios On Solids Reductionmentioning

confidence: 99%

Effect of mixing ratio of food waste and rice husk co-digestion and substrate to inoculum ratio on biogas production

Haider

Sheikh

Yousaf

et al. 2015

Bioresource Technology

169

View full text Add to dashboard Cite

“…accumulated in the process of hydrolysis and acidification will ultimately lead to irreversible acidification (Nagao et al, 2012). High organic loading could lead to collapse of the subsequent biogas production system, a long time of recovery, or complete replacement of the materials within the reactor, so reactors are usually not run in highest OLR (Lerm et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic digestion performance of vinegar residue in continuously stirred tank reactor

Feng

Zhang

et al. 2015

Bioresource Technology

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h i g h l i g h t sAnaerobic digestion of vinegar residue was investigated in continuous condition. CSTR showed a stable methane yield of 232.75 mL g vs À1 at OLR of 2.5 g vs L À1 d À1. Effluent recirculation significantly improved the stability of the AD system. a r t i c l e i n f o , were used. The highest volumetric methane productivity of 581.88 mL L À1 was achieved at OLR of 2.5 g vs L À1 d À1. Effluent reflux ratio was set as 50%, the results showed that effluent recirculation could effectively neutralize the acidity of vinegar residue, raise the pH of the feedstock, and enhance the buffering capacity of the AD system. Anaerobic digestion of vinegar residue could be a promising way not only for converting this waste into gas energy but also alleviating environmental pollution which might be useful for future industrial application.

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“…This indicates that the siphon installation made a contribution to improving methane yield. In the literature, methane yields from food waste were defined as ml per gram of VS added, and the values previously reported were within 350-450 ml/g-VS added under a long HRT more than 20 days [20,22]. The methane yields of SMR were on average 374 Nml/g-VS added (Phase 1) and 337 N ml/g-VS added (Phase 2), which were almost in the range reported by other researchers.…”

Section: Acceptable Organic Loading Rates and Hydraulic Retention Timementioning

confidence: 57%

“…When the VFA concentration reached 8000 mg/L as acetate and the pH dropped to 5.1, the gas production of the CMR almost stopped. The maximum OLR for wet anaerobic digestion of food waste was investigated by Nagao [20], who reported that the theoretical maximum OLR of the mesophilic CMR was 17.0 kg-COD/m 3 /day (10.5 kg-VS/m 3 /day) under SRT 60 days and HRT 8 days. In the case of this study, the CMR began unstable operation at an OLR of 15.5-16.0 kg-COD/m 3 /day, close to the maximum OLR reported by Nagao.…”

Section: Acceptable Organic Loading Rates and Hydraulic Retention Timementioning

confidence: 99%

Effect of Mixing Driven by Siphon Flow: Parallel Experiments Using the Anaerobic Reactors with Different Mixing Modes

Kobayashi

et al. 2013

Energies

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Abstract:The effect of mixing by siphon flow on anaerobic digestion, sludge distribution and microbial community were examined in parallel experiments using a siphon-mixed reactor (SMR), an unmixed reactor (UMR) and a continuously mixed reactor (CMR). The SMR performed well without the accumulation of fatty acids under COD loading rates varying from 3 to 18 kg/m 3 /day, while the UMR was totally acidified when the loading rate increased to 10 kg/m 3 /day. The methane yield of the SMR was at least 10% higher than that of the UMR, and comparable to that of the CMR. Furthermore, the SMR was found to markedly improve the dispersion of solids and reduce deposit formation compared to the UMR. Besides, during stable operation, the fatty acids level in the effluent of the SMR and UMR was lower than that in the CMR, and the archaeal community structure of the SMR was similar to that of the UMR.

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Maximum organic loading rate for the single-stage wet anaerobic digestion of food waste

Cited by 244 publications

References 31 publications

Effect of mixing ratio of food waste and rice husk co-digestion and substrate to inoculum ratio on biogas production

Effect of mixing ratio of food waste and rice husk co-digestion and substrate to inoculum ratio on biogas production

Anaerobic digestion performance of vinegar residue in continuously stirred tank reactor

Effect of Mixing Driven by Siphon Flow: Parallel Experiments Using the Anaerobic Reactors with Different Mixing Modes

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