Example study for granular bioreactor stratification

Three-dimensional evaluation of a sulfate-reducing granular bioreactor

Tian Wei Hao, Jing Hai Luo, Kui Zu Su, Li Wei, Hamish Mackey, Kun Chi, Guang Hao Chen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Recently, sulfate-reducing granular sludge has been developed for application in sulfate-laden water and wastewater treatment. However, little is known about biomass stratification and its effects on the bioprocesses inside the granular bioreactor. A comprehensive investigation followed by a verification trial was therefore conducted in the present work. The investigation focused on the performance of each sludge layer, the internal hydrodynamics and microbial community structures along the height of the reactor. The reactor substratum (the section below baffle 1) was identified as the main acidification zone based on microbial analysis and reactor performance. Two baffle installations increased mixing intensity but at the same time introduced dead zones. Computational fluid dynamics simulation was employed to visualize the internal hydrodynamics. The 16S rRNA gene of the organisms further revealed that more diverse communities of sulfate-reducing bacteria (SRB) and acidogens were detected in the reactor substratum than in the superstratum (the section above baffle 1). The findings of this study shed light on biomass stratification in an SRB granular bioreactor to aid in the design and optimization of such reactors.

Original languageEnglish
Article number31718
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 19 Aug 2016

Fingerprint

bioreactor
stratification
sulfate
sulfate-reducing bacterium
hydrodynamics
sludge
biomass
computational fluid dynamics
acidification
aid
microbial community
water treatment
community structure
evaluation
reactor
gene
simulation

ASJC Scopus subject areas

  • General

Cite this

Example study for granular bioreactor stratification : Three-dimensional evaluation of a sulfate-reducing granular bioreactor. / Hao, Tian Wei; Luo, Jing Hai; Su, Kui Zu; Wei, Li; Mackey, Hamish; Chi, Kun; Chen, Guang Hao.

In: Scientific Reports, Vol. 6, 31718, 19.08.2016.

Research output: Contribution to journalArticle

Hao, Tian Wei ; Luo, Jing Hai ; Su, Kui Zu ; Wei, Li ; Mackey, Hamish ; Chi, Kun ; Chen, Guang Hao. / Example study for granular bioreactor stratification : Three-dimensional evaluation of a sulfate-reducing granular bioreactor. In: Scientific Reports. 2016 ; Vol. 6.
@article{f7d0de0318d44079a05b721056704426,
title = "Example study for granular bioreactor stratification: Three-dimensional evaluation of a sulfate-reducing granular bioreactor",
abstract = "Recently, sulfate-reducing granular sludge has been developed for application in sulfate-laden water and wastewater treatment. However, little is known about biomass stratification and its effects on the bioprocesses inside the granular bioreactor. A comprehensive investigation followed by a verification trial was therefore conducted in the present work. The investigation focused on the performance of each sludge layer, the internal hydrodynamics and microbial community structures along the height of the reactor. The reactor substratum (the section below baffle 1) was identified as the main acidification zone based on microbial analysis and reactor performance. Two baffle installations increased mixing intensity but at the same time introduced dead zones. Computational fluid dynamics simulation was employed to visualize the internal hydrodynamics. The 16S rRNA gene of the organisms further revealed that more diverse communities of sulfate-reducing bacteria (SRB) and acidogens were detected in the reactor substratum than in the superstratum (the section above baffle 1). The findings of this study shed light on biomass stratification in an SRB granular bioreactor to aid in the design and optimization of such reactors.",
author = "Hao, {Tian Wei} and Luo, {Jing Hai} and Su, {Kui Zu} and Li Wei and Hamish Mackey and Kun Chi and Chen, {Guang Hao}",
year = "2016",
month = "8",
day = "19",
doi = "10.1038/srep31718",
language = "English",
volume = "6",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Example study for granular bioreactor stratification

T2 - Three-dimensional evaluation of a sulfate-reducing granular bioreactor

AU - Hao, Tian Wei

AU - Luo, Jing Hai

AU - Su, Kui Zu

AU - Wei, Li

AU - Mackey, Hamish

AU - Chi, Kun

AU - Chen, Guang Hao

PY - 2016/8/19

Y1 - 2016/8/19

N2 - Recently, sulfate-reducing granular sludge has been developed for application in sulfate-laden water and wastewater treatment. However, little is known about biomass stratification and its effects on the bioprocesses inside the granular bioreactor. A comprehensive investigation followed by a verification trial was therefore conducted in the present work. The investigation focused on the performance of each sludge layer, the internal hydrodynamics and microbial community structures along the height of the reactor. The reactor substratum (the section below baffle 1) was identified as the main acidification zone based on microbial analysis and reactor performance. Two baffle installations increased mixing intensity but at the same time introduced dead zones. Computational fluid dynamics simulation was employed to visualize the internal hydrodynamics. The 16S rRNA gene of the organisms further revealed that more diverse communities of sulfate-reducing bacteria (SRB) and acidogens were detected in the reactor substratum than in the superstratum (the section above baffle 1). The findings of this study shed light on biomass stratification in an SRB granular bioreactor to aid in the design and optimization of such reactors.

AB - Recently, sulfate-reducing granular sludge has been developed for application in sulfate-laden water and wastewater treatment. However, little is known about biomass stratification and its effects on the bioprocesses inside the granular bioreactor. A comprehensive investigation followed by a verification trial was therefore conducted in the present work. The investigation focused on the performance of each sludge layer, the internal hydrodynamics and microbial community structures along the height of the reactor. The reactor substratum (the section below baffle 1) was identified as the main acidification zone based on microbial analysis and reactor performance. Two baffle installations increased mixing intensity but at the same time introduced dead zones. Computational fluid dynamics simulation was employed to visualize the internal hydrodynamics. The 16S rRNA gene of the organisms further revealed that more diverse communities of sulfate-reducing bacteria (SRB) and acidogens were detected in the reactor substratum than in the superstratum (the section above baffle 1). The findings of this study shed light on biomass stratification in an SRB granular bioreactor to aid in the design and optimization of such reactors.

UR - http://www.scopus.com/inward/record.url?scp=84983354671&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983354671&partnerID=8YFLogxK

U2 - 10.1038/srep31718

DO - 10.1038/srep31718

M3 - Article

VL - 6

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 31718

ER -