Enhanced production of volatile fatty acids (VFAs) from sewage sludge by β-cyclodextrin

Xue Yang; Maoan Du; Duu-Jong Lee; Chunli Wan; Lina Zheng; Guanyuan Li; Jo-Shu Chang

doi:10.1016/j.biortech.2011.08.122

Enhanced production of volatile fatty acids (VFAs) from sewage sludge by β-cyclodextrin

Xue Yang
, Maoan Du
, Duu-Jong Lee
, Chunli Wan
, Lina Zheng
, Guanyuan Li
, Jo-Shu Chang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

36 Citations (Scopus)

Abstract

Organic matter in sewage sludge can be converted into volatile fatty acids (VFAs) as renewable carbon sources. This work for the first time demonstrates that β-cyclodextrin (β-CD) molecules enhance sludge hydrolysis for production of VFAs. With 0.2gβ-CDg ^-1 dried solids (DSs), the increment rate for VFAs peaked at 4200gg ^-1DSsg ^-1 β-CD, with acetate and propionate as the predominant VFAs. Compositional and microbial community analyses confirm that the β-CD molecules break a cell's membrane, such that it releases intracellular substances. Although β-CD molecules inhibited activities of methanogens, they did not impair those of acid-forming bacteria, thereby demonstrating that β-CD-assisted VFAs are renewable organic carbon sources, except in anaerobic digestion processes. © 2011 Elsevier Ltd.

Original language	English
Pages (from-to)	688-691
Journal	Bioresource Technology
Volume	110
DOIs	https://doi.org/10.1016/j.biortech.2011.08.122
Publication status	Published - Apr 2012
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

β-Cyclodextrin
Hydrolysis
Metabolites
Sewage sludge

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abstract = "Organic matter in sewage sludge can be converted into volatile fatty acids (VFAs) as renewable carbon sources. This work for the first time demonstrates that β-cyclodextrin (β-CD) molecules enhance sludge hydrolysis for production of VFAs. With 0.2gβ-CDg -1 dried solids (DSs), the increment rate for VFAs peaked at 4200gg -1DSsg -1 β-CD, with acetate and propionate as the predominant VFAs. Compositional and microbial community analyses confirm that the β-CD molecules break a cell's membrane, such that it releases intracellular substances. Although β-CD molecules inhibited activities of methanogens, they did not impair those of acid-forming bacteria, thereby demonstrating that β-CD-assisted VFAs are renewable organic carbon sources, except in anaerobic digestion processes. {\textcopyright} 2011 Elsevier Ltd.",

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doi = "10.1016/j.biortech.2011.08.122",

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T1 - Enhanced production of volatile fatty acids (VFAs) from sewage sludge by β-cyclodextrin

AU - Yang, Xue

AU - Du, Maoan

AU - Lee, Duu-Jong

AU - Wan, Chunli

AU - Zheng, Lina

AU - Li, Guanyuan

AU - Chang, Jo-Shu

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2012/4

Y1 - 2012/4

N2 - Organic matter in sewage sludge can be converted into volatile fatty acids (VFAs) as renewable carbon sources. This work for the first time demonstrates that β-cyclodextrin (β-CD) molecules enhance sludge hydrolysis for production of VFAs. With 0.2gβ-CDg -1 dried solids (DSs), the increment rate for VFAs peaked at 4200gg -1DSsg -1 β-CD, with acetate and propionate as the predominant VFAs. Compositional and microbial community analyses confirm that the β-CD molecules break a cell's membrane, such that it releases intracellular substances. Although β-CD molecules inhibited activities of methanogens, they did not impair those of acid-forming bacteria, thereby demonstrating that β-CD-assisted VFAs are renewable organic carbon sources, except in anaerobic digestion processes. © 2011 Elsevier Ltd.

AB - Organic matter in sewage sludge can be converted into volatile fatty acids (VFAs) as renewable carbon sources. This work for the first time demonstrates that β-cyclodextrin (β-CD) molecules enhance sludge hydrolysis for production of VFAs. With 0.2gβ-CDg -1 dried solids (DSs), the increment rate for VFAs peaked at 4200gg -1DSsg -1 β-CD, with acetate and propionate as the predominant VFAs. Compositional and microbial community analyses confirm that the β-CD molecules break a cell's membrane, such that it releases intracellular substances. Although β-CD molecules inhibited activities of methanogens, they did not impair those of acid-forming bacteria, thereby demonstrating that β-CD-assisted VFAs are renewable organic carbon sources, except in anaerobic digestion processes. © 2011 Elsevier Ltd.

KW - β-Cyclodextrin

KW - Hydrolysis

KW - Metabolites

KW - Sewage sludge

UR - https://www.scopus.com/pages/publications/84862815922

UR - https://www.scopus.com/pages/publications/84862815922#tab=impact

U2 - 10.1016/j.biortech.2011.08.122

DO - 10.1016/j.biortech.2011.08.122

M3 - RGC 21 - Publication in refereed journal

C2 - 22322146

SN - 0960-8524

VL - 110

SP - 688

EP - 691

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Enhanced production of volatile fatty acids (VFAs) from sewage sludge by β-cyclodextrin

Abstract

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Research Keywords

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