Semi-continuous co-digestion of solid cattle slaughterhouse wastes with other waste streams: Interactions within the mixtures and methanogenic community structure

Pagés‐Díaz, Jhosané; Westman, Johan O.; Taherzadeh, Mohammad J.; Reyes, Ileana Pereda; Horváth, Ilona Sárvári

doi:10.1016/j.cej.2015.03.049

Cited by 53 publications

(23 citation statements)

References 35 publications

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“…HRT could be decreased from 50 to 25 days with the corresponding increase in OLR up to 3.70 kgVS m -3 d -1 , and an increase of volatile fatty acid reduction efficiency from 80.6% to 82.6% was also found [134]. Moreover, the codigestion of slaughterhouse waste (i.e., either cattle or swine) with animal manure (i.e., either pig or cow) has also proved to be successful [1,20,135]. High methane yields and stable process performance have been observed for these mixtures both during thermophilic and mesophilic semicontinuous operations [1,135] (Table 4).…”

Section: Recent Developments In Acod Of Slaughterhouse Waste and Agromentioning

confidence: 94%

“…Similarly, the binary mixture combination of solid cattle slaughterhouse waste and various crops, including fruits/vegetables and straw, showed previously to be a blend with antagonistic interactions during the thermophilic batch assays [20], and this binary mixture combination led to unstable operation performance even during the semicontinuous operation with accumulation of VFAs leading to a drop in pH [1,135]. The OLR of 2 gVS L -1 d -1 led to overloading with a consequent gradual decline in the methane production [135], probably due to the high biodegradability of fruit and vegetable wastes, leading to a fast acidification of the Figure 3. Mixture contour plots for methane yield (A) and for specific methane production rate (B).…”

Section: Recent Developments In Acod Of Slaughterhouse Waste and Agromentioning

confidence: 99%

“…Moreover, the codigestion of slaughterhouse waste (i.e., either cattle or swine) with animal manure (i.e., either pig or cow) has also proved to be successful [1,20,135]. High methane yields and stable process performance have been observed for these mixtures both during thermophilic and mesophilic semicontinuous operations [1,135] (Table 4). This behavior has been mainly attributed to the characteristics of the animal manure itself (i.e., high fraction of fibers, nutrients, and good buffer capacity), which led to significant synergetic interactions during the codigestion process with solid cattle slaughterhouse waste [20].…”

Section: Recent Developments In Acod Of Slaughterhouse Waste and Agromentioning

confidence: 99%

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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: Recent Developments In Acod Of Slaughterhouse Waste and Agromentioning

confidence: 94%

Section: Recent Developments In Acod Of Slaughterhouse Waste and Agromentioning

confidence: 99%

Section: Recent Developments In Acod Of Slaughterhouse Waste and Agromentioning

confidence: 99%

See 1 more Smart Citation

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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show abstract

“…Acid accumulation was common to take place in traditional anaerobic digesters. In the research of solid cattle slaughterhouse wastes anaerobic digestion with SCTR reported by Pagés-Díaz et al [32], VFA concentration reached 5.9 g L -1 when OLR was increased to 3 gvs L -1 d -1 . However, no acid accumulation took place in the system with an additional AF reactor even when OLR was increased to 8.0 gvs LUASS -1 d -1 under both mesophilic and thermophilic conditions in this work.…”

Section: Influence Of An Additional Af Reactormentioning

confidence: 99%

An analysis of single and two stage, mesophilic and thermophilic high rate systems for anaerobic digestion of corn stalk

Meng

Jost

Mumme

et al. 2016

Chemical Engineering Journal

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General rightsCopyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policyThe University of Edinburgh has made every reasonable effort to ensure that Edinburgh Research Explorer content complies with UK legislation. If you believe that the public display of this file breaches copyright please contact openaccess@ed.ac.uk providing details, and we will remove access to the work immediately and investigate your claim.

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“…A successful co-digestion is not simply a digestion of several waste streams treated at the same time. In fact, biogas production and the stability of the process are highly dependent on waste composition, process conditions, and the activity of microbial community in the system [4]. Carbon to nitrogen (C/N) ratio has been identified as the key parameter for improving the digestion of substrates.…”

Section: Introductionmentioning

confidence: 99%

Cow Urine for Enhancement of Biogas Production and Fertilizer Quality of Biogas Slurry

et al. 2020

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To explore the potency of cow urine on biogas production and fertilizer quality of the biogas slurries, six experimental trials, T0 (50% CD:50% Water) as control, T1 (10% CD:90% CU), T2 (20% CD:80% CU), T3 (30% CD:70% CU), T4 (40% CD:60% CU) and T5 (50% CD:50% CU) were constructed by mixing cow dung (CD) and cow urine (CU). Cumulative gas volume was estimated for 30 days and the physicochemical properties of the slurries were evaluated. The cumulative gas volume of three trials (T3, T4 and T5) was higher than control (T0) and T5 showed maximum (28% over the control). Moreover, all of the trials except one (T1) showed higher gas yield than control (T0) of which maximum conversion of volatile solid (VS) to gas was obtained in T3. pH of the amended samples were above 7.0 (pH 7.00-7.42). Conductivity of the samples also increases (1.94-13.40 mS cm-1) with the increase in cow urine percentage. With respect to macronutrient (N, P, K) cow urine amended samples can be considered superior to the control one. Moreover, C/N ratio of all the amended samples were below 15 (4.7-14.0) and thus these are suitable for agronomic uses.

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Semi-continuous co-digestion of solid cattle slaughterhouse wastes with other waste streams: Interactions within the mixtures and methanogenic community structure

Cited by 53 publications

References 35 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

An analysis of single and two stage, mesophilic and thermophilic high rate systems for anaerobic digestion of corn stalk

Cow Urine for Enhancement of Biogas Production and Fertilizer Quality of Biogas Slurry

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