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Enhancement of aerobic granulation by zero-valent iron in sequencing batch airlift reactor

Kong,Q, Ngo,HH, Shu,L, Fu,RS, Jiang,CH and Miao,MS 2014, Enhancement of aerobic granulation by zero-valent iron in sequencing batch airlift reactor, Journal of hazardous materials, vol. 279, pp. 511-517, doi: 10.1016/j.jhazmat.2014.07.036.

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Title Enhancement of aerobic granulation by zero-valent iron in sequencing batch airlift reactor
Author(s) Kong,Q
Ngo,HH
Shu,L
Fu,RS
Jiang,CH
Miao,MS
Journal name Journal of hazardous materials
Volume number 279
Start page 511
End page 517
Total pages 7
Publisher Elsevier
Place of publication Amsterdam , Netherlands
Publication date 2014-07-29
ISSN 1873-3336
Keyword(s) Aerobic granulation
Extracellular polymeric substances (EPS)
Microbial community
Zero-valent iron (ZVI)
Science & Technology
Technology
Life Sciences & Biomedicine
Engineering, Environmental
Engineering, Civil
Environmental Sciences
Engineering
Environmental Sciences & Ecology
NITROUS-OXIDE EMISSION
UPFLOW ANAEROBIC SLUDGE
WASTE-WATER TREATMENT
CYCLIC DI-GMP
ACTIVATED-SLUDGE
BLANKET REACTORS
GRANULES
REMOVAL
AUGMENTATION
Summary This study elucidates the enhancement of aerobic granulation by zero-valent iron (ZVI). A reactor augmented with ZVI had a start-up time of aerobic granulation (43 days) that was notably less than that for a reactor without augmentation (64 days). The former reactor also had better removal efficiencies for chemical oxygen demand and ammonium. Moreover, the mature granules augmented with ZVI had better physical characteristics and produced more extracellular polymeric substances (especially of protein). Three-dimensional-excitation emission matrix fluorescence showed that ZVI enhanced organic material diversity. Additionally, ZVI enhanced the diversity of the microbial community. Fe(2+) dissolution from ZVI helped reduce the start-up time of aerobic granulation and increased the extracellular polymeric substance content. Conclusively, the use of ZVI effectively enhanced aerobic granulation.
Language eng
DOI 10.1016/j.jhazmat.2014.07.036
Field of Research 090499 Chemical Engineering not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069495

Document type: Journal Article
Collections: Faculty of Science, Engineering and Built Environment
School of Engineering
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Citation counts: TR Web of Science Citation Count  Cited 61 times in TR Web of Science
Scopus Citation Count Cited 65 times in Scopus Google Scholar Search Google Scholar
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Created: Mon, 09 Feb 2015, 17:15:06 EST

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