Anaerobic digestion without biogas?

Kleerebezem, Robbert; Joosse, Bart; Rozendal, René A.; Loosdrecht, M.C.M. van

doi:10.1007/s11157-015-9374-6

Cited by 320 publications

(190 citation statements)

References 56 publications

(57 reference statements)

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“…If the final methanogenic steps of the AD process are fully inhibited, the resulting products of the process are volatile fatty acids (and carbon dioxide and hydrogen). As the organic acid stream can be concentrated or (bio-) converted to high-value end products, this research has lately received significant attention (Kleerebezem et al 2015).…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Treatment technologies for urban solid biowaste to create value products: a review with focus on low- and middle-income settings

Lohri

Diener

Zabaleta

et al. 2017

Rev Environ Sci Biotechnol

229

116

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Section: Anaerobic Digestionmentioning

confidence: 99%

Treatment technologies for urban solid biowaste to create value products: a review with focus on low- and middle-income settings

Lohri

Diener

Zabaleta

et al. 2017

Rev Environ Sci Biotechnol

229

116

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“…VFA are short‐chain fatty acids consisting of six or fewer carbon atoms. Numerous microbial species can ferment dissolved organic compounds into organic acids under anaerobic conditions, e.g. acetic, propionic, butyric, and lactic acids, besides other fermentation products, such as alcohols.…”

Section: Introductionmentioning

confidence: 99%

Volatile fatty acids production from cheese whey: influence of pH, solid retention time and organic loading rate

Calero

Lagoa-Costa

Fernandez-Feal

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND The influence of pH, sludge retention time (SRT) and organic loading rate (OLR) were evaluated in the fermentation of cheese whey to produce volatile fatty acids (VFA) in a sequencing batch reactor (SBR). The reactor performance was studied at SRT of 4, 6 and 10 days and the influence of pH (5, 5.5 and 6) was determined at each SRT. The OLR effect was also studied in the range 3 to 12 g COD L‐1 d‐1, while keeping the other parameters mentioned above constant. RESULTS A more acidic pH , improved the degree of acidification at short SRT (4 and 6 days), reaching 76 and 84%, respectively, meanwhile at pH 6 the degree of acidification (DA) improved and reached 85% at longer SRT (10 d). Regarding the VFA profile, a pH shift from 5 to 6 stimulated the production of acetic and propionic acids, whereas the production of butyric and valeric acids decreased irrespective of the SRT applied. Moreover, the increase of SRT from 4 to 10 d boosted propionic and valeric acids production regardless of the pH applied. Lower OLR favoured the production of propionic and valeric acids, while higher OLR increased the production of butyric acid. Lactose degradation and VFA production followed the Michaelis–Menten model. CONCLUSION A selective VFA distribution can be reached by modifying parameters such as pH, SRT and OLR in acidogenic reactors, therefore, they could be suitable for further valorisation purposes in the production of polyhydroxyalkanoates from such VFA. © 2017 Society of Chemical Industry

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“…An example of a valuable product from organic waste is polyhydroxyalkanoates (PHA) (Reis et al, 2003). Product revenue that can be achieved when producing PHA instead of biogas is approximately 5 times higher, excluding downstream processing and additional process costs (Kleerebezem et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

PHA production from the organic fraction of municipal solid waste (OFMSW): Overcoming the inhibitory matrix

Korkakaki

Mulders

Veeken³

et al. 2016

Water Research

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Anaerobic digestion without biogas?

Abstract: Anaerobic digestion for the production of methane containing biogas is the classic example of a resource recovery process that combines stabilization of particulate organic matter or wastewater treatment with

Cited by 320 publications

References 56 publications

Treatment technologies for urban solid biowaste to create value products: a review with focus on low- and middle-income settings

Treatment technologies for urban solid biowaste to create value products: a review with focus on low- and middle-income settings

Volatile fatty acids production from cheese whey: influence of pH, solid retention time and organic loading rate

PHA production from the organic fraction of municipal solid waste (OFMSW): Overcoming the inhibitory matrix

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