Nitrifying bacterial growth inhibition in the presence of algae and cyanobacteria

Biotechnology and Bioengineering
Okkyoung ChoiZhiqiang Hu

Abstract

Nitrifying bacteria, cyanobacteria, and algae are important microorganisms in open pond wastewater treatment systems. Nitrification involving the sequential oxidation of ammonia to nitrite and nitrate, mainly due to autotrophic nitrifying bacteria, is essential to biological nitrogen removal in wastewater and global nitrogen cycling. A continuous flow autotrophic bioreactor was initially designed for nitrifying bacterial growth only. In the presence of cyanobacteria and algae, we monitored both the microbial activity by measuring specific oxygen production rate (SOPR) for microalgae and cyanobacteria and specific oxygen uptake rate (SOUR) for nitrifying bacteria. The growth of cyanobacteria and algae inhibited the maximum nitrification rate by a factor of 4 although the ammonium nitrogen fed to the reactor was almost completely removed. Terminal restriction fragment length polymorphism (T-RFLP) analysis indicated that the community structures of nitrifying bacteria remained unchanged, containing the dominant Nitrosospira, Nitrospira, and Nitrobacter species. PCR amplification coupled with cloning and sequencing analysis resulted in identifying Chlorella emersonii and an uncultured cyanobacterium as the dominant species in the a...Continue Reading

References

Aug 1, 1997·Applied and Environmental Microbiology·U NübelG Muyzer
Jul 27, 2002·Environmental Science & Technology·Zhiqiang HuBarth F Smets
Sep 4, 2004·Applied and Environmental Microbiology·Nils Risgaard-PetersenBente Aa Lomstein
Aug 8, 2006·Water Research·Raul Muñoz, Benoit Guieysse
Nov 23, 2006·Huan jing ke xue= Huanjing kexue·Ji-min ShenMiao-miao Ye
Jan 27, 2007·Water Research·Slil Siripong, Bruce E Rittmann
Mar 14, 2007·Biotechnology Advances·Yusuf Chisti
Jun 26, 2007·Applied and Environmental Microbiology·Qiong WangJames R Cole
Oct 24, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·C ChiemchaisriK Yamamoto
Mar 18, 2008·Applied and Environmental Microbiology·Mitsuhiro YoshidaShingo Hiroishi
Aug 22, 2008·Applied Microbiology and Biotechnology·Cristina GonzálezRaúl Muñoz
Sep 18, 2008·Applied Microbiology and Biotechnology·David P B T B StrikCees J N Buisman
Mar 31, 2009·Applied Microbiology and Biotechnology·Shovon Mandal, Nirupama Mallick

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Citations

Sep 25, 2012·Environmental Science & Technology·Li XiaoZhen He
Jul 2, 2014·TheScientificWorldJournal·Xiaofei LvHuifeng Wu
Jul 24, 2015·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Peter van der SteenPiet N L Lens
Jan 9, 2019·Environmental Science and Pollution Research International·Ying ZhangMinghua Zhou
Jan 29, 2019·Frontiers in Microbiology·Wenbing LiMing Dong
Aug 18, 2020·Journal of Environmental Management·G Noriega-HeviaA Bouzas

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