Effects of soluble microbial products (SMP) on the performance of an anammox attached film expanded bed (AAFEB) reactor: Synergistic interaction and toxic shock

Yanlong Zhang; Haiyuan Ma; Qigui Niu; Rong Chen; Toshimasa Hojo; Yu You Li

doi:10.1016/j.biortech.2016.09.129

Effects of soluble microbial products (SMP) on the performance of an anammox attached film expanded bed (AAFEB) reactor: Synergistic interaction and toxic shock

Yanlong Zhang, Haiyuan Ma, Qigui Niu, Rong Chen, Toshimasa Hojo, Yu You Li

ENG - Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The accumulation of soluble microbial production (SMP) in an anammox attached film expanded bed (AAFEB) and its effect on the reactor performance were investigated in this study. During the long-term experiment, an extended HRT resulted in the accumulation of SMP and the change of treatment performance. When the SMP increased from 10.5 ± 1.5 mg L⁻¹ to 31.7 ± 6.4 mg L⁻¹ with the increase of influent TN concentration from 313 mg L⁻¹ to 2500 mg L⁻¹, the TN removal efficiency was stable. However, when the influent TN concentration was 3500 mg L⁻¹, the SMP concentration increased higher than 100 mg L⁻¹, the reactor soon became inhibited. Bath tests indicated that both the specific anammox activity (SAA) and the substrate tolerance ability decreased during the stable operation phases, whereas the specific denitrification activity (SDA) was significantly enhanced. In addition, N₂O emissions in the anammox-denitrifier symbiotic system were greater than in the conventional nitrogen removal process.

Original language	English
Pages (from-to)	261-269
Number of pages	9
Journal	Bioresource Technology
Volume	222
DOIs	https://doi.org/10.1016/j.biortech.2016.09.129
Publication status	Published - 2016 Dec 1

Keywords

AAFEB
Anammox
Denitrification
HRT
NO emission
SMP

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2016.09.129

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title = "Effects of soluble microbial products (SMP) on the performance of an anammox attached film expanded bed (AAFEB) reactor: Synergistic interaction and toxic shock",

abstract = "The accumulation of soluble microbial production (SMP) in an anammox attached film expanded bed (AAFEB) and its effect on the reactor performance were investigated in this study. During the long-term experiment, an extended HRT resulted in the accumulation of SMP and the change of treatment performance. When the SMP increased from 10.5 ± 1.5 mg L−1 to 31.7 ± 6.4 mg L−1 with the increase of influent TN concentration from 313 mg L−1 to 2500 mg L−1, the TN removal efficiency was stable. However, when the influent TN concentration was 3500 mg L−1, the SMP concentration increased higher than 100 mg L−1, the reactor soon became inhibited. Bath tests indicated that both the specific anammox activity (SAA) and the substrate tolerance ability decreased during the stable operation phases, whereas the specific denitrification activity (SDA) was significantly enhanced. In addition, N2O emissions in the anammox-denitrifier symbiotic system were greater than in the conventional nitrogen removal process.",

keywords = "AAFEB, Anammox, Denitrification, HRT, NO emission, SMP",

author = "Yanlong Zhang and Haiyuan Ma and Qigui Niu and Rong Chen and Toshimasa Hojo and Li, {Yu You}",

note = "Funding Information: The authors wish to thank the Japan Society for the Promotion of Science (JSPS) – Japan for their financial support of this study. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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doi = "10.1016/j.biortech.2016.09.129",

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T2 - Synergistic interaction and toxic shock

AU - Zhang, Yanlong

AU - Ma, Haiyuan

AU - Niu, Qigui

AU - Chen, Rong

AU - Hojo, Toshimasa

AU - Li, Yu You

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The accumulation of soluble microbial production (SMP) in an anammox attached film expanded bed (AAFEB) and its effect on the reactor performance were investigated in this study. During the long-term experiment, an extended HRT resulted in the accumulation of SMP and the change of treatment performance. When the SMP increased from 10.5 ± 1.5 mg L−1 to 31.7 ± 6.4 mg L−1 with the increase of influent TN concentration from 313 mg L−1 to 2500 mg L−1, the TN removal efficiency was stable. However, when the influent TN concentration was 3500 mg L−1, the SMP concentration increased higher than 100 mg L−1, the reactor soon became inhibited. Bath tests indicated that both the specific anammox activity (SAA) and the substrate tolerance ability decreased during the stable operation phases, whereas the specific denitrification activity (SDA) was significantly enhanced. In addition, N2O emissions in the anammox-denitrifier symbiotic system were greater than in the conventional nitrogen removal process.

AB - The accumulation of soluble microbial production (SMP) in an anammox attached film expanded bed (AAFEB) and its effect on the reactor performance were investigated in this study. During the long-term experiment, an extended HRT resulted in the accumulation of SMP and the change of treatment performance. When the SMP increased from 10.5 ± 1.5 mg L−1 to 31.7 ± 6.4 mg L−1 with the increase of influent TN concentration from 313 mg L−1 to 2500 mg L−1, the TN removal efficiency was stable. However, when the influent TN concentration was 3500 mg L−1, the SMP concentration increased higher than 100 mg L−1, the reactor soon became inhibited. Bath tests indicated that both the specific anammox activity (SAA) and the substrate tolerance ability decreased during the stable operation phases, whereas the specific denitrification activity (SDA) was significantly enhanced. In addition, N2O emissions in the anammox-denitrifier symbiotic system were greater than in the conventional nitrogen removal process.

KW - AAFEB

KW - Anammox

KW - Denitrification

KW - HRT

KW - NO emission

KW - SMP

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Effects of soluble microbial products (SMP) on the performance of an anammox attached film expanded bed (AAFEB) reactor: Synergistic interaction and toxic shock

Abstract

Keywords

UN SDGs

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