Biochemical and chemical technology for a virtuous bio-waste cycle to produce biogas without ammonia and speciality bio-based chemicals with reduced entrepreneurial risk

Francavilla, Matteo; Beneduce, Luciano; Gatta, Giuseppe; Montoneri, Enzo; Monteleone, Massimo; Mainero, Davide

doi:10.1002/jctb.4875

Cited by 12 publications

(43 citation statements)

References 22 publications

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“…Consistent with previous data obtained on the effect of SBO in the anaerobic digestion of urban kitchen wastes, the data obtained in this work confirm that SBO are efficient auxiliaries to obtain manure digestates with low ammonia content. The full relevance of these results can be appreciated in connection with the other SBO properties as plant growth biostimulants, biopolymers for the fabrication of mulch films for agriculture use, and animal feed supplement .…”

Section: Resultsmentioning

confidence: 84%

“…It demonstrates that soluble substances (SBO), obtained from municipal biowastes through integrated chemical and biochemical technology, and added at low concentration (0.20%) to manure slurry, allow production of anaerobic digestate with low ammonia content. The same SBO effect had previously been observed for the anaerobic digestion of humid organic fraction of solid municipal biowastes . The results reported now widen the range of applications of the SBO.…”

Section: Discussionmentioning

confidence: 99%

“…The separated liquid and solid phase were weighed to determine their relative content in the reactor liquor. They were analyzed separately for the content of moisture, total solids (TS), volatile solids (VS), ashes, total N (N tot ), ammonia N (N NH3 ) and organic N (N org ), according to previously reported methods . This procedure allowed calculation of the total amount of the above analytes in each reactor at the beginning and at the end of the fermentation run.…”

Section: Experimental Methodologymentioning

confidence: 99%

“…When F values showed significance, individual means were compared using Tukey's honest significant difference at P ≤ 0.01. The experimental biogas volume values versus the fermentation time were fitted with the following modified Gompertz model,

Y_{t} = y_{max} \cdot ({}, 1 - e x p ([], prefix- \frac{A}{y_{italicmax}} ((), t - t_{0})))

where t is time (days), Y t is the cumulative biogas production volume (NL) at time t , y max is the total biogas volume produced at fermentation end (NL), A is the maximum methane production rate in the log phase (NL day −1 ) and t 0 represents the lag phase (days).…”

Section: Experimental Methodologymentioning

confidence: 99%

“…Most recently, it has been reported that ammonia in the anaerobic digestate of municipal biowastes can be reduced, without adversely affecting biogas yield and quality, by simply adding 0.05–0.20% of biowaste derived soluble bio‐based substances (SBO) to the anaerobic fermentation feed. This finding raises the prospect that anaerobic digestion in the presence of SBO does not require secondary treatment of the digestate for reducing the ammonia content, and that therefore no capital cost for digestate processing facilities is necessary.…”

Section: Introductionmentioning

confidence: 99%

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Ecofriendly manure anaerobic digestion assisted by soluble bio-based substances obtained from anaerobic digestion, composting and chemical hydrolysis of urban bio-wastes. A step toward the integration of urban and agriculture waste management

Riggio

Rosso

Comino

et al. 2016

J. Chem. Technol. Biotechnol.

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BACKGROUND: Recently, a virtuous material cycle has been reported where soluble bio-based substances (SBO) obtained by anaerobic digestion, composting and chemical hydrolysis of urban wastes are recycled at 0.05-2% concentration to the anaerobic bioreactor to reduce the ammonia content in the fermentation digestate, with no adverse effect on biogas yield and composition. The aim of the present work was to assess whether the same SBO effect was real also for the anaerobic fermentation of farm manure. RESULTS: Manure fermentations were carried out at 35 ∘ C for 40 days in the absence (control) and in the presence of 0.2% SBO using a 115 L reactor, yielding over 1000 biogas NL. No SBO effect on biogas production and composition was evident. The control fermentation produced 18% ammonia at the expense of the pristine organic N. In contrast, fermentation in the presence of SBO produced no ammonia and no reduction of the pristine organic N. CONCLUSIONS: The SBO assisted anaerobic fermentation for reducing digestate ammonia content can be applied to farm manure as well as to urban biowastes. This finding gives the prospect of more benefits from a wider material cycle including both urban and agriculture wastes processed by integrated chemical and biochemical technology. CONCLUSIONSThis work proposes a new ecofriendly SBO assisted process for the anaerobic fermentation of manure. It demonstrates that soluble substances (SBO), obtained from municipal biowastes

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Section: Resultsmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Experimental Methodologymentioning

confidence: 99%

Y_{t} = y_{max} \cdot ({}, 1 - e x p ([], prefix- \frac{A}{y_{italicmax}} ((), t - t_{0})))

Section: Experimental Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ecofriendly manure anaerobic digestion assisted by soluble bio-based substances obtained from anaerobic digestion, composting and chemical hydrolysis of urban bio-wastes. A step toward the integration of urban and agriculture waste management

Riggio

Rosso

Comino

et al. 2016

J. Chem. Technol. Biotechnol.

Self Cite

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Municipal Waste Treatment, Technological Scale up and Commercial Exploitation: The Case of Bio-waste Lignin to Soluble Lignin-like Polymers

Montoneri¹

2017

Food Waste Reduction and Valorisation

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Analyses of Methanogenic Population as Key Indicator for Anaerobic Digestion: A Case-Study in the Organic Fraction of Municipal Solid Waste Treatment

Negro

Mainero

Caredda

et al. 2022

Waste Biomass Valor

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Purpose The anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) is a treatment biologically optimizable. The analysis of the microbial balance within the digester allows not only to describe and improve the efficiency of the system but also to foresee potential variations after biochemical interventions. This work aims to highlight methanogenic population variations in two similar parallel digesters to identify bio-indicators for digestion performance after the inclusion of an additive. Methods The analysed industrial case study involved the two parallel, pilot-scale, bio-digesters of ACEA Pinerolese Industriale. They had analogous design and fed by the same OFMSW except for an additive inclusion. The analyses by qRT-PCR, on both bio-digesters, have been performed to determine an impact of the additive on the growth and metabolic activity of total methanogens, Methanosarcina spp., Methanocorpuscolum spp., and Methanospirillus spp. Results Collected data showed that the addition of biopolymers extracted from compost produced both total methanogens and Methanosarcina decrease (7.67 vs. 7.48 and 6.05 vs. 5.69 Log gene copies/mL sludge respectively, T-test p < 0.01) affecting slightly the methane yield (-8%). Methanosarcina was the highest expressed methanogen; however, the results suggested the involvement of a highly complex and heterogeneous methanogen community. Conclusions Total methanogens and active Methanosarcina modulations are able to highlight major bio-methane production even if their shift is slight. Globally only 3–4% of the present and 12–13% of the active methanogens were described. However, biological approach can supply a proxy of production performance of the digester also concerning the feeding peculiarities. Graphical abstract

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Biochemical and chemical technology for a virtuous bio-waste cycle to produce biogas without ammonia and speciality bio-based chemicals with reduced entrepreneurial risk

Cited by 12 publications

References 22 publications

Ecofriendly manure anaerobic digestion assisted by soluble bio-based substances obtained from anaerobic digestion, composting and chemical hydrolysis of urban bio-wastes. A step toward the integration of urban and agriculture waste management

Ecofriendly manure anaerobic digestion assisted by soluble bio-based substances obtained from anaerobic digestion, composting and chemical hydrolysis of urban bio-wastes. A step toward the integration of urban and agriculture waste management

Municipal Waste Treatment, Technological Scale up and Commercial Exploitation: The Case of Bio-waste Lignin to Soluble Lignin-like Polymers

Analyses of Methanogenic Population as Key Indicator for Anaerobic Digestion: A Case-Study in the Organic Fraction of Municipal Solid Waste Treatment

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