Gel immobilization: A strategy to improve the performance of anaerobic ammonium oxidation (anammox) bacteria for nitrogen-rich wastewater treatment.

Hafiz Adeel Ahmad; Shou-Qing Ni; Shakeel Ahmad; Jian Zhang; Muhammad Ali; Huu Hao Ngo; Wenshan Guo; Zuwan Tan; Qi Wang

doi:10.1016/j.biortech.2020.123642

Gel immobilization: A strategy to improve the performance of anaerobic ammonium oxidation (anammox) bacteria for nitrogen-rich wastewater treatment.

Hafiz Adeel Ahmad, Shou-Qing Ni, Shakeel Ahmad, Jian Zhang, Muhammad Ali, Huu Hao Ngo, Wenshan Guo, Zuwan Tan, Qi Wang

King Abdullah University of Science and Technology

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

60 Scopus citations

Abstract

Anaerobic ammonium oxidation (anammox) process appears a suitable substitute to nitrification-denitrification at a lower C/N ratios. Anammox is a chemolithoautotrophic process, belong to phylum Planctomycetes, and they are slow growing bacteria. Different strategies, e.g., biofilm formation, granulation and gel immobilization, have been applied to maintain a critical mass of bacterial cells in the system by avoiding washout from the bioreactor. Gel immobilization of anammox appears the best alternative to the natural process of biofilm formation and granulation. Polyvinyl alcohol-sodium alginate, polyethylene glycol, and waterborne polyurethane are the most reported materials used for the entrapment of anammox bacteria. However, dissolution of the gel beads refrains its application for long term bioprocess. Magnetic powder could coat on the surface of the beads which may increase the mechanical strength and durability of pellets. Application and problem of immobilization technology for the commercialization of this technology also addressed.

Original language	English (US)
Pages (from-to)	123642
Journal	Bioresource technology
DOIs	https://doi.org/10.1016/j.biortech.2020.123642
State	Published - Jun 16 2020

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors thank the support from the National Natural Science Foundation of China (21777086), Taishan Scholar Youth Expert Program of Shandong Province (tsqn201909005), Key Research & Developmental Program of Shandong Province (2019JZZY020308), Natural Science Foundation for Distinguished Young Scholars of Shandong Province (JQ201809), Young Scholars Program of Shandong University (2016WLJH16, 2020QNQT012), and Qingdao Science and Technology Huimin Demonstration Guide Project (20-3-4-4-nsh).

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title = "Gel immobilization: A strategy to improve the performance of anaerobic ammonium oxidation (anammox) bacteria for nitrogen-rich wastewater treatment.",

abstract = "Anaerobic ammonium oxidation (anammox) process appears a suitable substitute to nitrification-denitrification at a lower C/N ratios. Anammox is a chemolithoautotrophic process, belong to phylum Planctomycetes, and they are slow growing bacteria. Different strategies, e.g., biofilm formation, granulation and gel immobilization, have been applied to maintain a critical mass of bacterial cells in the system by avoiding washout from the bioreactor. Gel immobilization of anammox appears the best alternative to the natural process of biofilm formation and granulation. Polyvinyl alcohol-sodium alginate, polyethylene glycol, and waterborne polyurethane are the most reported materials used for the entrapment of anammox bacteria. However, dissolution of the gel beads refrains its application for long term bioprocess. Magnetic powder could coat on the surface of the beads which may increase the mechanical strength and durability of pellets. Application and problem of immobilization technology for the commercialization of this technology also addressed.",

author = "Ahmad, {Hafiz Adeel} and Shou-Qing Ni and Shakeel Ahmad and Jian Zhang and Muhammad Ali and Ngo, {Huu Hao} and Wenshan Guo and Zuwan Tan and Qi Wang",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank the support from the National Natural Science Foundation of China (21777086), Taishan Scholar Youth Expert Program of Shandong Province (tsqn201909005), Key Research & Developmental Program of Shandong Province (2019JZZY020308), Natural Science Foundation for Distinguished Young Scholars of Shandong Province (JQ201809), Young Scholars Program of Shandong University (2016WLJH16, 2020QNQT012), and Qingdao Science and Technology Huimin Demonstration Guide Project (20-3-4-4-nsh).",

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doi = "10.1016/j.biortech.2020.123642",

language = "English (US)",

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T1 - Gel immobilization: A strategy to improve the performance of anaerobic ammonium oxidation (anammox) bacteria for nitrogen-rich wastewater treatment.

AU - Ahmad, Hafiz Adeel

AU - Ni, Shou-Qing

AU - Ahmad, Shakeel

AU - Zhang, Jian

AU - Ali, Muhammad

AU - Ngo, Huu Hao

AU - Guo, Wenshan

AU - Tan, Zuwan

AU - Wang, Qi

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank the support from the National Natural Science Foundation of China (21777086), Taishan Scholar Youth Expert Program of Shandong Province (tsqn201909005), Key Research & Developmental Program of Shandong Province (2019JZZY020308), Natural Science Foundation for Distinguished Young Scholars of Shandong Province (JQ201809), Young Scholars Program of Shandong University (2016WLJH16, 2020QNQT012), and Qingdao Science and Technology Huimin Demonstration Guide Project (20-3-4-4-nsh).

PY - 2020/6/16

Y1 - 2020/6/16

N2 - Anaerobic ammonium oxidation (anammox) process appears a suitable substitute to nitrification-denitrification at a lower C/N ratios. Anammox is a chemolithoautotrophic process, belong to phylum Planctomycetes, and they are slow growing bacteria. Different strategies, e.g., biofilm formation, granulation and gel immobilization, have been applied to maintain a critical mass of bacterial cells in the system by avoiding washout from the bioreactor. Gel immobilization of anammox appears the best alternative to the natural process of biofilm formation and granulation. Polyvinyl alcohol-sodium alginate, polyethylene glycol, and waterborne polyurethane are the most reported materials used for the entrapment of anammox bacteria. However, dissolution of the gel beads refrains its application for long term bioprocess. Magnetic powder could coat on the surface of the beads which may increase the mechanical strength and durability of pellets. Application and problem of immobilization technology for the commercialization of this technology also addressed.

AB - Anaerobic ammonium oxidation (anammox) process appears a suitable substitute to nitrification-denitrification at a lower C/N ratios. Anammox is a chemolithoautotrophic process, belong to phylum Planctomycetes, and they are slow growing bacteria. Different strategies, e.g., biofilm formation, granulation and gel immobilization, have been applied to maintain a critical mass of bacterial cells in the system by avoiding washout from the bioreactor. Gel immobilization of anammox appears the best alternative to the natural process of biofilm formation and granulation. Polyvinyl alcohol-sodium alginate, polyethylene glycol, and waterborne polyurethane are the most reported materials used for the entrapment of anammox bacteria. However, dissolution of the gel beads refrains its application for long term bioprocess. Magnetic powder could coat on the surface of the beads which may increase the mechanical strength and durability of pellets. Application and problem of immobilization technology for the commercialization of this technology also addressed.

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JO - Bioresource technology

JF - Bioresource technology

ER -

Gel immobilization: A strategy to improve the performance of anaerobic ammonium oxidation (anammox) bacteria for nitrogen-rich wastewater treatment.

Abstract

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