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Journal Article 4

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2022 1

2019 1

2011 1

2010 1

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heterotrophic bacteria 2

H. venusta TJPU05 1

Aerobic heterotrophic bacteria 1

Ammonia oxidizing bacteria 1

Anammox 1

CANON process 1

COD/N ratio 1

Heterotrophic nitrification and aerobic denitrification 1

High-salinity wastewater 1

Salt-tolerant bacteria 1

activated sludge flocs 1

ammonia- oxidizing bacteria (AOB) 1

chloramines 1

drinking water 1

microelectrodes 1

nitrification 1

nitrifying bacteria 1

nitrogen transport 1

organic carbon 1

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A heterotrophic nitrification-aerobic denitrification bacterium TJPU05 suitable for nitrogen removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1503-6

Abstract:

• H. venusta TJPU05 showed excellent HN-AD ability at high salinity.

Keywords： Salt-tolerant bacteria H. venusta TJPU05 Heterotrophic nitrification and aerobic denitrification

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Micro-analysis of nitrogen transport and conversion inside activated sludge flocs using microelectrodes

Lei WANG, Yongtao LV, Xudong WANG, Yongzhe YANG, Xiaorong BAI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4, Pages 633-638 doi: 10.1007/s11783-011-0329-z

Abstract: At pH 8.5, heterotrophic bacteria used less oxygen than nitrifying bacteria, whereas at lower pH heterotrophic

Keywords： nitrogen transport activated sludge flocs heterotrophic bacteria nitrifying bacteria microelectrodes

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Characterization of CANON reactor performance and microbial community shifts with elevated COD/N ratios under a continuous aeration mode

Yao Zhang, Yayi Wang, Yuan Yan, Haicheng Han, Min Wu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1095-6

Abstract:

COD/N at low ratios (0–0.82) improved N removals of CANON.

CANON performance decreased after COD/N up to 0.82.

The relative abundance of AOB decreased continuously with increasing COD/N.

AOB outcompeted at a high COD load led to CANON failure.

The relative abundance of AnAOB decreased and increased with increasing COD/N.

Keywords： CANON process COD/N ratio Anammox Ammonia oxidizing bacteria Aerobic heterotrophic bacteria

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Impact of total organic carbon and chlorine to ammonia ratio on nitrification in a bench-scale drinking water distribution system

Yongji ZHANG, Lingling ZHOU, Guo ZENG, Huiping DENG, Guibai LI

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4, Pages 430-437 doi: 10.1007/s11783-010-0247-5

Abstract: Nitrification occurs in chloraminated drinking water systems and is affected by water quality parameters. The aim of this study was to investigate the impact of total organic carbon and chlorine to ammonia ratio on nitrification potential in a simulated drinking water distribution system as during chloramination. The occurrence of nitrification and activity of nitrifying bacteria was primarily monitored using four rotating annular bioreactors (RAB) with different chlorine to ammonia ratios and total organic carbon (TOC) levels. The results indicated that nitrification occurred despite at a low influent concentration of ammonia, and a high concentration of nitrite nitrogen was detected in the effluent. The study illustrated that reactors 1(R1) and 3 (R3), with higher TOC levels, produced more nitrite nitrogen, which was consistent with the ammonia-oxidizing bacteria (AOB) counts, and was linked to a relatively more rapid decay of chloramines in comparison to their counterparts (R2 and R4). The AOB and HPC counts were correlated during the biofilm formation with the establishment of nitrification. Biofilm AOB abundance was also higher in the high TOC reactors compared with the low TOC reactors. The chlorine to ammonia ratio did not have a significant impact on the occurrence of nitrification. Bulk water with a high TOC level supported the occurrence of nitrification, and AOB development occurred at all examined chlorine to ammonia dose ratios (3∶1 or 5∶1).

Keywords： nitrification drinking water ammonia- oxidizing bacteria (AOB) chloramines organic carbon heterotrophic