Negligible seeding source effect on the final ANAMMOX community under steady and high nitrogen loading rate after enrichment using poly(vinyl alcohol) gel carriers

Title
Negligible seeding source effect on the final ANAMMOX community under steady and high nitrogen loading rate after enrichment using poly(vinyl alcohol) gel carriers
Authors
이석헌조경진최민규배효관
Keywords
Anaerobic ammonia oxidation (ANAMMOX); High nitrogen loading rate; Cryogel immobilization; Real-time quantification polymerase chain; Seeding source effect; MiSeq Illumina sequencing
Issue Date
2018-10
Publisher
Chemosphere
Citation
VOL 208-30
Abstract
This study investigated the effect of seeding source on the mature anaerobic ammonia oxidation (ANAMMOX) bacterial community niche in continuous poly(vinyl alcohol) (PVA) gel systems operated under high nitrogen loading rate (NLR) condition. Four identical column reactors packed with PVA gels were operated for 182  d using different seeding sources which had distinct community structures. The ANAMMOX reaction was achieved in all the bioreactors with comparable total and ANAMMOX bacterial 16S rRNA gene quantities. The bacterial community structure of the bioreactors became similar during operation; some major bacteria were commonly found. Interestingly, one ANAMMOX species, “Candidatus Brocadia sinica”, was conclusively predominant in all the bioreactors, even though different seeding sludges were used as inoculum source, possibly due to the unique physiological characteristics of “Ca. Brocadia sinica” and the operating conditions (i.e., PVA gel-based continuous system and 1.0  kg-N/(m3·d) of NLR). The results clearly suggest that high NLR condition is a more significant factor determining the final ANAMMOX community niche than is the type of seeding source.
URI
https://pubs.kist.re.kr/handle/201004/68469
ISSN
0045-6535
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE