Enhanced aerobic granulation with extracellular polymeric substances (EPS)-free pellets

Guang-Hui Yu; Yu-Chuan Juang; Duu-Jong Lee; Pin-Jing He; Li-Ming Shao

doi:10.1016/j.biortech.2009.04.050

Enhanced aerobic granulation with extracellular polymeric substances (EPS)-free pellets

Guang-Hui Yu
, Yu-Chuan Juang
, Duu-Jong Lee
, Pin-Jing He
, Li-Ming Shao

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

33 Citations (Scopus)

Abstract

Extracellular polymeric substances (EPSs) were secreted by cells after they agglomerated into a compact aggregate. This study shows that the EPS initially embedded in seed sludge before granulation may sterically slow subsequent microbe-microbe contact, thereby delaying aerobic granulation. Three identical bioreactors were used in this study using glucose as the sole carbon and energy source. Reactor 1 (R1) was seeded with EPS-free pellets and operated in sequencing batch reactor (SBR) mode. Reactor 2 (R2) was seeded with the original sludge flocs and operated in SBR mode. Reactor 3 (R3) was seeded with EPS-free pellets and operated in continuously stirred tank reactor (CSTR) mode. Granulation occurred in R1 earlier than in R2; the granules that formed in R1 were larger and more compact than those in R2 at the same cultivation time. The few mature granules in R3 suggest that aerobic granulation can occur in a CSTR when a reactor is seeded with EPS-free pellets. © 2009 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	4611-4615
Journal	Bioresource Technology
Volume	100
Issue number	20
DOIs	https://doi.org/10.1016/j.biortech.2009.04.050
Publication status	Published - Oct 2009
Externally published	Yes

Bibliographical note

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].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Research Keywords

Aerobic granulation
CSTR
Extracellular polymeric substances
SBR
Steric hindrance

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10.1016/j.biortech.2009.04.050

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title = "Enhanced aerobic granulation with extracellular polymeric substances (EPS)-free pellets",

abstract = "Extracellular polymeric substances (EPSs) were secreted by cells after they agglomerated into a compact aggregate. This study shows that the EPS initially embedded in seed sludge before granulation may sterically slow subsequent microbe-microbe contact, thereby delaying aerobic granulation. Three identical bioreactors were used in this study using glucose as the sole carbon and energy source. Reactor 1 (R1) was seeded with EPS-free pellets and operated in sequencing batch reactor (SBR) mode. Reactor 2 (R2) was seeded with the original sludge flocs and operated in SBR mode. Reactor 3 (R3) was seeded with EPS-free pellets and operated in continuously stirred tank reactor (CSTR) mode. Granulation occurred in R1 earlier than in R2; the granules that formed in R1 were larger and more compact than those in R2 at the same cultivation time. The few mature granules in R3 suggest that aerobic granulation can occur in a CSTR when a reactor is seeded with EPS-free pellets. {\textcopyright} 2009 Elsevier Ltd. All rights reserved.",

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author = "Guang-Hui Yu and Yu-Chuan Juang and Duu-Jong Lee and Pin-Jing He and Li-Ming Shao",

note = "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]. ",

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doi = "10.1016/j.biortech.2009.04.050",

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TY - JOUR

T1 - Enhanced aerobic granulation with extracellular polymeric substances (EPS)-free pellets

AU - Yu, Guang-Hui

AU - Juang, Yu-Chuan

AU - Lee, Duu-Jong

AU - He, Pin-Jing

AU - Shao, Li-Ming

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].

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N2 - Extracellular polymeric substances (EPSs) were secreted by cells after they agglomerated into a compact aggregate. This study shows that the EPS initially embedded in seed sludge before granulation may sterically slow subsequent microbe-microbe contact, thereby delaying aerobic granulation. Three identical bioreactors were used in this study using glucose as the sole carbon and energy source. Reactor 1 (R1) was seeded with EPS-free pellets and operated in sequencing batch reactor (SBR) mode. Reactor 2 (R2) was seeded with the original sludge flocs and operated in SBR mode. Reactor 3 (R3) was seeded with EPS-free pellets and operated in continuously stirred tank reactor (CSTR) mode. Granulation occurred in R1 earlier than in R2; the granules that formed in R1 were larger and more compact than those in R2 at the same cultivation time. The few mature granules in R3 suggest that aerobic granulation can occur in a CSTR when a reactor is seeded with EPS-free pellets. © 2009 Elsevier Ltd. All rights reserved.

AB - Extracellular polymeric substances (EPSs) were secreted by cells after they agglomerated into a compact aggregate. This study shows that the EPS initially embedded in seed sludge before granulation may sterically slow subsequent microbe-microbe contact, thereby delaying aerobic granulation. Three identical bioreactors were used in this study using glucose as the sole carbon and energy source. Reactor 1 (R1) was seeded with EPS-free pellets and operated in sequencing batch reactor (SBR) mode. Reactor 2 (R2) was seeded with the original sludge flocs and operated in SBR mode. Reactor 3 (R3) was seeded with EPS-free pellets and operated in continuously stirred tank reactor (CSTR) mode. Granulation occurred in R1 earlier than in R2; the granules that formed in R1 were larger and more compact than those in R2 at the same cultivation time. The few mature granules in R3 suggest that aerobic granulation can occur in a CSTR when a reactor is seeded with EPS-free pellets. © 2009 Elsevier Ltd. All rights reserved.

KW - Aerobic granulation

KW - CSTR

KW - Extracellular polymeric substances

KW - SBR

KW - Steric hindrance

UR - https://www.scopus.com/pages/publications/67649173072

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U2 - 10.1016/j.biortech.2009.04.050

DO - 10.1016/j.biortech.2009.04.050

M3 - RGC 21 - Publication in refereed journal

C2 - 19457655

SN - 0960-8524

VL - 100

SP - 4611

EP - 4615

JO - Bioresource Technology

JF - Bioresource Technology

IS - 20

ER -

Enhanced aerobic granulation with extracellular polymeric substances (EPS)-free pellets

Abstract

Bibliographical note

UN SDGs

Research Keywords

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