Enhanced elementary sulfur recovery in integrated sulfate-reducing, sulfur-producing rector under micro-aerobic condition

Xi-Jun Xu; Chuan Chen; Ai-Jie Wang; Ning Fang; Ye Yuan; Nan-Qi Ren; Duu-Jong Lee

doi:10.1016/j.biortech.2012.03.095

Enhanced elementary sulfur recovery in integrated sulfate-reducing, sulfur-producing rector under micro-aerobic condition

Xi-Jun Xu
, Chuan Chen
, Ai-Jie Wang
, Ning Fang
, Ye Yuan
, Nan-Qi Ren
, Duu-Jong Lee

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

95 Citations (Scopus)

Abstract

Biological treatment of sulfate-laden wastewater consists of two separate reactors to reduce sulfate to sulfide by sulfate-reducing bacteria (SRB) and to oxidize sulfide to sulfur (S⁰) by sulfide oxidation bacteria (SOB). To have SRB+SOB in a single reactor faced difficulty of low S⁰ conversion. This study for the first time revealed that dissolved oxygen (DO) level can be used to manipulate SRB+SOB reactions in a single reactor. This work demonstrated successful operation of an integrated SRB+SOB reactor under micro-aerobic condition. At DO=0.10-0.12mgl^-1, since the activities of SOB were enhanced by limited oxygen, the removal efficiency for sulfate reached 81.5% and the recovery of S⁰ peaked at 71.8%, higher than those reported in literature. At increased DO, chemical oxidation of sulfide with molecular oxygen competed with SOB so conversion of S⁰ started to decline. At DO>0.30mgl^-1 activities of SRB were inhibited, leading to failure of the SRB+SOB reactor. © 2012 Elsevier Ltd.

Original language	English
Pages (from-to)	517-521
Journal	Bioresource Technology
Volume	116
DOIs	https://doi.org/10.1016/j.biortech.2012.03.095
Publication status	Published - Jul 2012
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

Elemental sulfur recovery
Integrated process
Micro-aerobic condition
Sulfate reducing
Sulfide oxidizing

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10.1016/j.biortech.2012.03.095

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title = "Enhanced elementary sulfur recovery in integrated sulfate-reducing, sulfur-producing rector under micro-aerobic condition",

abstract = "Biological treatment of sulfate-laden wastewater consists of two separate reactors to reduce sulfate to sulfide by sulfate-reducing bacteria (SRB) and to oxidize sulfide to sulfur (S0) by sulfide oxidation bacteria (SOB). To have SRB+SOB in a single reactor faced difficulty of low S0 conversion. This study for the first time revealed that dissolved oxygen (DO) level can be used to manipulate SRB+SOB reactions in a single reactor. This work demonstrated successful operation of an integrated SRB+SOB reactor under micro-aerobic condition. At DO=0.10-0.12mgl-1, since the activities of SOB were enhanced by limited oxygen, the removal efficiency for sulfate reached 81.5\% and the recovery of S0 peaked at 71.8\%, higher than those reported in literature. At increased DO, chemical oxidation of sulfide with molecular oxygen competed with SOB so conversion of S0 started to decline. At DO>0.30mgl-1 activities of SRB were inhibited, leading to failure of the SRB+SOB reactor. {\textcopyright} 2012 Elsevier Ltd.",

keywords = "Elemental sulfur recovery, Integrated process, Micro-aerobic condition, Sulfate reducing, Sulfide oxidizing",

author = "Xi-Jun Xu and Chuan Chen and Ai-Jie Wang and Ning Fang and Ye Yuan and Nan-Qi Ren and Duu-Jong Lee",

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]. ",

year = "2012",

month = jul,

doi = "10.1016/j.biortech.2012.03.095",

language = "English",

volume = "116",

pages = "517--521",

journal = "Bioresource Technology",

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TY - JOUR

T1 - Enhanced elementary sulfur recovery in integrated sulfate-reducing, sulfur-producing rector under micro-aerobic condition

AU - Xu, Xi-Jun

AU - Chen, Chuan

AU - Wang, Ai-Jie

AU - Fang, Ning

AU - Yuan, Ye

AU - Ren, Nan-Qi

AU - Lee, Duu-Jong

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 - 2012/7

Y1 - 2012/7

N2 - Biological treatment of sulfate-laden wastewater consists of two separate reactors to reduce sulfate to sulfide by sulfate-reducing bacteria (SRB) and to oxidize sulfide to sulfur (S0) by sulfide oxidation bacteria (SOB). To have SRB+SOB in a single reactor faced difficulty of low S0 conversion. This study for the first time revealed that dissolved oxygen (DO) level can be used to manipulate SRB+SOB reactions in a single reactor. This work demonstrated successful operation of an integrated SRB+SOB reactor under micro-aerobic condition. At DO=0.10-0.12mgl-1, since the activities of SOB were enhanced by limited oxygen, the removal efficiency for sulfate reached 81.5% and the recovery of S0 peaked at 71.8%, higher than those reported in literature. At increased DO, chemical oxidation of sulfide with molecular oxygen competed with SOB so conversion of S0 started to decline. At DO>0.30mgl-1 activities of SRB were inhibited, leading to failure of the SRB+SOB reactor. © 2012 Elsevier Ltd.

AB - Biological treatment of sulfate-laden wastewater consists of two separate reactors to reduce sulfate to sulfide by sulfate-reducing bacteria (SRB) and to oxidize sulfide to sulfur (S0) by sulfide oxidation bacteria (SOB). To have SRB+SOB in a single reactor faced difficulty of low S0 conversion. This study for the first time revealed that dissolved oxygen (DO) level can be used to manipulate SRB+SOB reactions in a single reactor. This work demonstrated successful operation of an integrated SRB+SOB reactor under micro-aerobic condition. At DO=0.10-0.12mgl-1, since the activities of SOB were enhanced by limited oxygen, the removal efficiency for sulfate reached 81.5% and the recovery of S0 peaked at 71.8%, higher than those reported in literature. At increased DO, chemical oxidation of sulfide with molecular oxygen competed with SOB so conversion of S0 started to decline. At DO>0.30mgl-1 activities of SRB were inhibited, leading to failure of the SRB+SOB reactor. © 2012 Elsevier Ltd.

KW - Elemental sulfur recovery

KW - Integrated process

KW - Micro-aerobic condition

KW - Sulfate reducing

KW - Sulfide oxidizing

UR - https://www.scopus.com/pages/publications/84861676483

UR - https://www.scopus.com/pages/publications/84861676483#tab=impact

U2 - 10.1016/j.biortech.2012.03.095

DO - 10.1016/j.biortech.2012.03.095

M3 - RGC 21 - Publication in refereed journal

C2 - 22591695

SN - 0960-8524

VL - 116

SP - 517

EP - 521

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Enhanced elementary sulfur recovery in integrated sulfate-reducing, sulfur-producing rector under micro-aerobic condition

Abstract

Bibliographical note

UN SDGs

Research Keywords

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Corrigendum to “Enhanced elementary sulfur recovery in integrated sulfate-reducing, sulfur-producing reactor under micro-aerobic condition” [Bioresour. Technol. 116 (2012) 517–521]

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