Anaerobic digestion of OFMSW (organic fraction of municipal solid waste) and BNR (biological nutrient removal) processes: a possible integration – preliminary results

Cecchi, Francesca; Battistoni, P.; Pavan, Paolo; Fava, Gabriele; Mata‐Alvarez, J.

doi:10.2166/wst.1994.0383

Cited by 32 publications

(13 citation statements)

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“…The necessity to reduce this adverse effect and to develop a reliable alternative to the fossil fueldependent economy has raised the interest in agrowastes as a renewable energy sources. When applying this concept, a double effect can be achieved: the reduction of fossil fuels' consumption together with solving the above-mentioned environmental problems [33,34]. Therefore, anaerobic digestion of agricultural wastes should be considered as one of the main alternative for treating these types of waste streams in an environmentally friendly scheme.…”

Section: The Impact Of Final Disposal Of Slaughterhouse Residues and mentioning

confidence: 99%

Anaerobic Biodegradation of Solid Substrates from Agroindustrial Activities — Slaughterhouse Wastes and Agrowastes

Reyes¹,

Díaz²,

Horváth³

2015

Biodegradation and Bioremediation of Polluted Systems - New Advances and Technologies

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Solid wastes from the meat industry are produced in large amounts resulting in a negative impact on the environment if not properly treated. Due to their high content of proteins and fats, these residues are excellent substrates for anaerobic digestion which holds high potential for methane yield. However, possible toxic compounds may be formed during its biodegradation with a consequent failure of the process under long-term operation. The anaerobic co-digestion of such residues with other co-substrates as those generated in agricultural activities has been proposed as a good alternative to overcome these problems. Nevertheless, today there is very little knowledge to assess on mixture interactions connected to wastes composition, biodegradability, and the kinetics of the anaerobic process when complex materials are utilized in ternary and quaternary mixture, specifically when co-digesting solid cattle slaughterhouse waste with agrowaste. It is therefore important to select the right combination of substrates and ratios to obtain synergy instead of antagonism in those mixtures. This chapter aims to provide an overview of the anaerobic digestion of solid slaughterhouse waste and agrowaste, as well as the influence of mixture interactions on its biodegradation.Keywords: "growaste, anaerobic digestion, co-digestion, synergy, slaughterhouse waste © 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. . IntroductionThe agriculture sector belongs to one of the most important human activities, but at the same time, it is considered as one of the most residue-producing sector in the world. Farmer activities have a huge impact on the environment, and moreover, industries related to agriculture, such as the meat processing industry, generate a large amount of high-strength residues. Due to the growing demand of meat in the world, the amount of organic solid wastes from meat producing industries is increasing every day. There are several attempts to improve the biodegradation of such residues, such as the anaerobic process, the preferred technology to diminish the organic load with an adequate efficiency [ -]. It is well known that anaerobic digestion "D provides both environmental solutions and renewable energy production in rural areas, in most cases, with the corresponding autonomy."ecause of the high content of proteins and fats, slaughterhouse residues are holding high biogas potential and hence are interesting for the anaerobic digestion process. However, potential inhibitory compounds can be formed during the degradation of proteins and lipids, which make this process sensitive and prone to fail [ -]. " possible way to overcome these problems is the co-digestion with carbon-rich co-substrates, i.e., a mixture of agrowastes with low protein/lipid content. This will lead ...

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Section: The Impact Of Final Disposal Of Slaughterhouse Residues and mentioning

confidence: 99%

Anaerobic Biodegradation of Solid Substrates from Agroindustrial Activities — Slaughterhouse Wastes and Agrowastes

Reyes¹,

Díaz²,

Horváth³

2015

Biodegradation and Bioremediation of Polluted Systems - New Advances and Technologies

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“…primary settled hydrolysed sludge or the anaerobic fermentation products from OFMSW (Cecchi et al, 1994;Pavan et al, 1998 and. In Treviso, the WWTP has a modified Johannesburg configuration, avoiding primary settling in order to preserve COD for nutrient removal.…”

Section: The Nutrient Problemmentioning

confidence: 99%

Codigestion of solid wastes: A review of its uses and perspectives including modeling

Mata‐Alvarez¹,

Dosta²,

Macé³

et al. 2011

Critical Reviews in Biotechnology

256

118

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The last two years have witnessed a dramatic increase in the number of papers published on the subject of codigestion, highlighting the relevance of this topic within anaerobic digestion research. Consequently, it seems appropriate to undertake a review of codigestion practices starting from the late 1970s, when the first papers related to this concept were published, and continuing to the present day, demonstrating the exponential growth in the interest shown in this approach in recent years. Following a general analysis of the situation, state-of-the-art codigestion is described, focusing on the two most important areas as regards publication: codigestion involving sewage sludge and the organic fraction of municipal solid waste (including a review of the secondary advantages for wastewater treatment plant related to biological nutrient removal), and codigestion in the agricultural sector, that is, including agricultural - farm wastes, and energy crops. Within these areas, a large number of oversized digesters appear which can be used to codigest other substrates, resulting in economic and environmental advantages. Although the situation may be changing, there is still a need for good examples on an industrial scale, particularly with regard to wastewater treatment plants, in order to extend this beneficial practice. In the last section, a detailed analysis of papers addressing the important aspect of modelisation is included. This analysis includes the first codigestion models to be developed as well as recent applications of the standardised anaerobic digestion model ADM1 to codigestion. (This review includes studies ranging from laboratory to industrial scale.).

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“…The feasibility of applying the two-phase anaerobic digestion process to the organic fraction of municipal solid waste (OFMSW), and to forest residues and MSW was investigated by Cecchi et al 122 and Hooper and Li, 123 respectively. Lee et al 124 maintained stable steady-state operation at a maximum OLR of 7.9 kg VS m À3 d À1 , with about 70% VS reduction in digestion of easily biodegradable presorted food waste in a pilot-scale study.…”

Section: Overall Two-stage Process Operation and Controlmentioning

confidence: 99%

Two‐phase anaerobic digestion processes: a review

Demirel

Yenigün

2002

J of Chemical Tech & Biotech

352

144

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This review provides a detailed comparative summary of the recent and current research activities in the area of two-phase anaerobic digestion processes. The acid phase and the methane phase are ®rst evaluated, individually, from microbiological, kinetic and modelling, process optimization, operation and control, inhibition, and toxicity points of view. The overall process performance is subsequently evaluated as a whole. Finally, areas requiring further research are determined.

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Anaerobic digestion of OFMSW (organic fraction of municipal solid waste) and BNR (biological nutrient removal) processes: a possible integration – preliminary results

Cited by 32 publications

References 0 publications

Anaerobic Biodegradation of Solid Substrates from Agroindustrial Activities — Slaughterhouse Wastes and Agrowastes

Anaerobic Biodegradation of Solid Substrates from Agroindustrial Activities — Slaughterhouse Wastes and Agrowastes

Codigestion of solid wastes: A review of its uses and perspectives including modeling

Two‐phase anaerobic digestion processes: a review

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