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

被引：74

作者：

Ahmad, Hafiz Adeel ^{[1
]}

Ni, Shou-Qing ^{[1
]}

Ahmad, Shakeel ^{[2
]}

Zhang, Jian ^{[1
]}

Ali, Muhammad ^{[3
]}

Ngo, Huu Hao ^{[4
]}

Guo, Wenshan ^{[4
]}

Tan, Zuwan ^{[5
,6
]}

Wang, Qi ^{[7
]}

机构：

[1] Shandong Univ, Sch Environm Sci & Engn, Shandong Prov Key Lab Water Pollut Control & Reso, Qingdao 266237, Shandong, Peoples R China

[2] Muhammad Nawaz Shareef Univ Agr, Dept Soil & Environm Sci, Multan, Pakistan

[3] King Abdullah Univ Sci & Technol, Water Desalinat & Reuse Ctr, Thuwal 239556900, Saudi Arabia

[4] Univ Technol Sydney, Sch Civil & Environm Engn, Broadway, NSW 2007, Australia

[5] China Gezhouba Grp Co Ltd, Yichang, Peoples R China

[6] China Gezhouba Grp Three Gorges Construct Engn Co, Yichang, Peoples R China

[7] Shandong Hongda Construct Engn Co Ltd, Jinan, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 313卷

基金：

中国国家自然科学基金;

关键词：

Anammox; Gel immobilization; Polyethylene glycol; Polyvinyl alcohol-sodium alginate; Waterborne polyurethane; SEQUENCING BATCH REACTOR; CONVENTIONAL ACTIVATED-SLUDGE; AEROBIC GRANULAR SLUDGE; FAST START-UP; MICROBIAL COMMUNITY; REMOVAL PERFORMANCE; POLYVINYL-ALCOHOL; OXIDIZING BACTERIA; NITRIFYING BACTERIA; NITRITATION;

D O I：

10.1016/j.biortech.2020.123642

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 tech-nology for the commercialization of this technology also addressed.

引用

页数：12

共 92 条

[51] Characteristics of and selection criteria for support materials for cell immobilization in wastewater treatment [J].