Results 221 to 230 of about 24,662 (268)

Feasibility of partial-denitrification/ anammox for pharmaceutical wastewater treatment in a hybrid biofilm reactor.

Water Research, 2021
Biological nitrogen removal from pharmaceutical wastewater has drawn increasing attention due to biotoxicity and inhibition. In this study, for the first time, a novel approach integrating partial-denitrification with anaerobic ammonia oxidation (PD/A ...
Jingwen Zhang, Yongzhen Peng, Xiangchen Li, Rui Du   +3 more
semanticscholar   +1 more source

The feasibility and mechanism of redox-active biochar for promoting anammox performance.

Science of the Total Environment, 2022
Redox-active biochar has been regarded as an effective additive to promote heterotrophic denitrification, yet little is known about the feasibility of adding biochar for promoting anammox performance.
Weigang Wang, Qinghua Liu, Hao Xue, Tonglin Wang, Yufei Fan, Zhuoran Zhang, Han Wang, Yayi Wang   +7 more
semanticscholar   +1 more source

Towards mainstream deammonification of municipal wastewater: Partial nitrification-anammox versus partial denitrification-anammox

Science of The Total Environment, 2019
The mainstream deammonification has been believed as a viable technology for the energy-neutral municipal wastewater treatment, which can be realized through two approaches known as partial nitrification-anammox (PN/AMX) and partial denitrification-anammox (PDN/AMX).
Meng, Zhang, Siyu, Wang, Bin, Ji, Yu, Liu   +3 more
openaire   +2 more sources

Successful Application of Anammox Using the Hybrid Autotrophic-Heterotrophic Denitrification Process for Low-Strength Wastewater Treatment.

Environmental Science and Technology, 2022
Directly integrating anammox into sewage treatment is attractive, but anammox bacteria (AnAOB) enrichment is complex due to vicious competition from heterotrophic bacteria (HB).
Jialin Li, Yongzhen Peng, Shenhua Yang, Shuai Li, Wanyi Feng, Xiyao Li, Qiong Zhang, Liang Zhang   +7 more
semanticscholar   +1 more source

Biochar-mediated DNRA pathway of anammox bacteria under varying COD/N ratios.

Water Research, 2022
Coupling dissimilatory nitrate reduction to ammonium (DNRA) pathway with anammox process has a prominent advantage in enhancement of nitrogen removal. However, the anammox bacteria driven-DNRA is difficult to proceed at normal autotrophic circumstance ...
Weigang Wang, Tongshun Wang, Qinghua Liu, Han Wang, Hao Xue, Zhuoran Zhang, Yayi Wang   +6 more
semanticscholar   +1 more source

Anammox bacteria: from discovery to application

Nature Reviews Microbiology, 2008
Anaerobic ammonium oxidation (anammox) bacteria, which were discovered in waste-water sludge in the early 1990s, have the unique metabolic ability to combine ammonium and nitrite or nitrate to form nitrogen gas. This discovery led to the realization that a substantial part of the enormous nitrogen losses that are observed in the marine environment--up ...
exaly   +3 more sources

Anammox-based granulation cycle for sustainable granular sludge biotechnology from mechanisms to strategies: A critical review.

Water Research, 2022
Anaerobic ammonium oxidation (anammox) granular sludge is a promising biotechnological process for treating low-carbon nitrogenous wastewater, and is featured with low energy consumption and footprint.
Yi Xue, Haiyuan Ma, Y. Li
semanticscholar   +1 more source

Ecological niche differentiation among anammox bacteria

Water Research, 2020
Anaerobic ammonium oxidizing (anammox) bacteria can directly convert ammonium and nitrite to nitrogen gas anaerobically and were responsible for a substantial part of the fixed nitrogen loss and re-oxidation of nitrite to nitrate in freshwater and marine ecosystems.
Lei, Zhang, Satoshi, Okabe
openaire   +2 more sources

Highly enriched anammox within anoxic biofilms by reducing suspended sludge biomass in a real-sewage A2/O process.

Water Research, 2021
This study proposes a novel strategy of stably enriching anammox in mainstream, based on the competitive difference to NO2- between anoxic biofilms and suspended sludge.
Jianwei Li, Yongzhen Peng, Ruitao Gao, Lan Yang, Liyan Deng, Qi Zhao, Qi-Yuan Liu, Xiyao Li, Qiong Zhang, Liang Zhang   +9 more
semanticscholar   +1 more source

The anammox house: On the extracellular polymeric substances of anammox granular sludge

2020
In biofilms, microorganisms are embedded in a hydrated matrix that provides a stable structure and protection against influences fromthe environment. Thismatrix is formed by extracellular polymeric substances (EPS) that are produced by the microorganisms of the biofilm.
openaire   +3 more sources