Temperature phased anaerobic digestion (TPAD) of organic fraction of municipal solid waste (OFMSW) and digested sludge (DS): Effect of different hydrolysis conditions

Amodeo, Corrado; Hattou, Stéphane; Buffière, Pierre; Benbelkacem, Hassen

doi:10.1016/j.wasman.2021.02.049

Cited by 29 publications

(18 citation statements)

References 52 publications

(55 reference statements)

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“…It should be remembered that NO 2 and CO are gases that are harmful to human health, as they are extremely carcinogenic (Cetin, 2016;Oliveira et al, 2021;Maharjan et al, 2022). CH 4 primarily originates from volcanic activities, in addition to the degradation of organic residues in anoxic environments (Amodeo et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Sentinel-5P TROPOMI satellite application for NO2 and CO studies aiming at environmental valuation

Bodah

Neckel

Maculan

et al. 2022

Journal of Cleaner Production

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Section: Introductionmentioning

confidence: 99%

Sentinel-5P TROPOMI satellite application for NO2 and CO studies aiming at environmental valuation

Bodah

Neckel

Maculan

et al. 2022

Journal of Cleaner Production

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“…The correlations were considered statistically significant at a 95% confidence interval (a < 0.05). The authors of [42] also proved that TPAD showed a better performance in terms of methane production of up to 20% in comparison to the single-stage MAD.…”

Section: Anaerobic Digestion Performancementioning

confidence: 90%

“…The authors of [45] stated HRT to be a crucial parameter that can influence the efficiency of AD, and an HRT of 30 days allows all types of AD to become more or less the same in terms of biogas production, which makes the more energy-demanding TAD and TPAD less economically interesting. The authors of [42,46] underlined that the first stage of TPAD was the most efficient at 2-3 days, when the total HRT was less than 20 days.…”

Section: Anaerobic Digestion Performancementioning

confidence: 99%

Digested Sludge Quality in Mesophilic, Thermophilic and Temperature-Phased Anaerobic Digestion Systems

Lanko

Hejnic

Ambrožová

et al. 2021

Water

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Anaerobic digestion (AD) technology is commonly used to treat sewage sludge from activated sludge systems, meanwhile alleviating the energy demand (and costs) for wastewater treatment. Most often, anaerobic digestion is run in single-stage systems under mesophilic conditions, as this temperature regime is considered to be more stable than the thermophilic one. However, it is known that thermophilic conditions are advantageous over mesophilic ones in terms of methane production and digestate hygienisation, while it is unclear which one is better concerning the digestate dewaterability. Temperature-phased anaerobic digestion (TPAD) is a double-stage AD process that combines the above-mentioned temperature regimes, by operating a thermophilic digester followed by a mesophilic one. The aim of this study is to compare the digestate quality of single-stage mesophilic and thermophilic AD and TPAD systems, in terms of the dewaterability, pathogenic safety and lower calorific value (LCV) and, based on the comparison, consider digested sludge final disposal alternatives. The research is conducted in lab-scale reactors treating waste-activated sludge. The dewaterability is tested by two methods, namely, centrifugation and mechanical pressing. The experimental results show that the TPAD system is the most beneficial in terms of organic matter degradation efficiency (32.4% against 27.2 for TAD and 26.0 for MAD), producing a digestate with a high dewaterability (8.1–9.8% worse than for TAD and 6.2–12.0% better than for MAD) and pathogenic safety (coliforms and Escherichia coli were not detected, and Clostridium perfringens were counted up to 4.8–4.9 × 103, when for TAD it was only 1.4–2.5 × 103, and for MAD it was 1.3–1.8 × 104), with the lowest LCV (19.2% against 15.4% and 15.8% under thermophilic and mesophilic conditions, respectively). Regarding the final disposal, the digested sludge after TAD can be applied directly in agriculture; after TPAD, it can be used as a fertilizer only in the case where the fermenter HRT assures the pathogenic safety. The MAD digestate is the best for being used as a fuel preserving a higher portion of organic matter, not transforming into biogas during AD.

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“…Anaerobic digestion (AD) technology allows the treatment of the organic fraction of municipal solid waste (OFMSW) and the production of methane‐rich biogas and fertilizer for agricultural use 9,10 . The large‐scale implementation of AD of the OFMSW, of which food waste (FW) represents a significant part, is a challenge for dissemination of the technology, especially owing to the low biodegradation associated with the presence of lignocellulosic compounds in the solid phase 11,12 .…”

Section: Introductionmentioning

confidence: 99%

Determination of the biochemical methane potential of food waste after aerobic storage and aeration pretreatment

Oliveira

Léo

Forster‐Carneiro³

et al. 2022

Biofuels Bioprod Bioref

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Food waste represents a relevant fraction of municipal solid organic waste, and anaerobic digestion can be an eco-friendly alternative for sustainable management in a circular economy framework. One of the challenges to the implementation of anaerobic digestion is the availability of easily degradable compounds in the substrate, which can be solved by the application of pretreatment to increase methane production. In this study, the influence of aerobic storage time and forced continuous aeration pretreatment on the biochemical methane potential of food waste was evaluated. The results demonstrate an increase in the methane production concerning the total volatile solids (TVS) of food waste stored for 7 days (425 NmL CH 4 g −1 TVS) compared with fresh samples without pretreatment (375 NmL CH 4 g −1 TVS). The adoption of forced and continuous aeration pretreatment on food waste for 4 days produced 456 NmL CH 4 g −1 TVS for the leachate, 1.22-fold higher than that for the food waste without storage. In conclusion, the application of aeration pretreatment previous to anaerobic digestion can be an alternative to increase the methane potential from food waste.

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Temperature phased anaerobic digestion (TPAD) of organic fraction of municipal solid waste (OFMSW) and digested sludge (DS): Effect of different hydrolysis conditions

Cited by 29 publications

References 52 publications

Sentinel-5P TROPOMI satellite application for NO2 and CO studies aiming at environmental valuation

Sentinel-5P TROPOMI satellite application for NO2 and CO studies aiming at environmental valuation

Digested Sludge Quality in Mesophilic, Thermophilic and Temperature-Phased Anaerobic Digestion Systems

Determination of the biochemical methane potential of food waste after aerobic storage and aeration pretreatment

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