Performance and mechanism of simultaneous nitrification and denitrification in zeolite spheres internal loop airlift reactor

被引：12
|
作者：
Wen, Xiaojing [1 ,2 ]
Liang, Donghui [1 ,3 ]
Hu, Yongyou [1 ,2 ]
Zhu, Xiaoqiang [2 ,4 ]
Wang, Guobin [4 ]
Xie, Jieyun [4 ]
机构：
[1] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Environm & Energy, Guangzhou 510006, Peoples R China
[2] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Key Lab Pollut Control & Ecosyst Restorat Ind Clus, Minist Educ, Guangzhou 510006, Peoples R China
[3] Zhongkai Univ Agr & Engn, Coll Urban & Rural Construct, Zhongkai Rd, Guangzhou 510225, Peoples R China
[4] Guangzhou Pengkai Environm Technol Co Ltd, Guangzhou 511493, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2023年 / 380卷
基金：
中国国家自然科学基金;
关键词：
Zeolite; Internal loop airlift reactor; Simultaneous nitrification and denitrification; (SND); Adsorption; New bio-packing; BED BIOFILM REACTOR; AMMONIUM WASTE-WATER; NITROGEN REMOVAL; CONSTRUCTED WETLAND; OXYTETRACYCLINE OTC; BACTERIUM; DEGRADATION;
D O I：
10.1016/j.biortech.2023.129073
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
An internal loop airlift reactor was constructed with zeolite spheres as biofilm carriers (ZS-ALR), and the per-formance and mechanism of nitrogen removal were investigated. The results indicated that the TN, NH4+-N and TOC removal efficiencies of ZS-ALR reached 96.12%, 100% and 94.54% under appropriate conditions (HRT of 6-8 h, aeration rates of 80-120 mL/min, C/N ratios of 4-6), and the highest TN removal rate constant was 0.01156 min-1. Further investigating the influence of ammonia-N concentrations on nitrogen removal and biofilm stability revealed that catabolism was important in TN removal, and the prominent genera for nitrogen removal included Sphaerotilus (42.20%), Flavobacterium (17.47%) and Fusibacter (6.14%). Meanwhile, the abundance of amoA, napA, narG and nosZ genes was markedly influenced by ammonia-N concentrations. The nitrogen removal of ZS-ALR was mainly through ammonia-N adsorption by zeolite spheres and simultaneous nitrification and denitrification by biofilm.
引用
收藏
页数：10
相关论文
共 50 条
  • [31] Bubble recirculation regimes in an internal-loop airlift reactor
    van Benthum, WAJ
    van der Lans, RGJM
    van Loosdrecht, MCM
    Heijnen, JJ
    CHEMICAL ENGINEERING SCIENCE, 1999, 54 (18) : 3995 - 4006
  • [32] Mass transfer characteristics in ultrasonic internal airlift loop reactor
    Huang, Ya-Qin
    Lu, Xiao-Ping
    Wei, Ru-Feng
    Han, Ping-Fang
    Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities, 2006, 20 (05): : 707 - 711
  • [33] Mathematical modelling of simultaneous nitrification and denitrification in biological reactor systems - a review
    Bhattacharya, R.
    Mazumder, D.
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2023, 20 (07) : 8105 - 8126
  • [34] Experimental study on the simultaneous nitrification and denitrification of limited aeration biofilm reactor
    Zheng Peng-sheng
    Jin Li-li
    Gao Jie
    2020 5TH INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE, ENERGY TECHNOLOGY AND ENVIRONMENTAL ENGINEERING, 2020, 571
  • [35] Modeling simultaneous nitrification and denitrification (SND) in a fluidized bed biofilm reactor
    Seifi, Mohammad
    Fazaelipoor, Mohammad Hassan
    APPLIED MATHEMATICAL MODELLING, 2012, 36 (11) : 5603 - 5613
  • [36] Simultaneous nitrification and denitrification via nitrite in a sequence hybrid biological reactor
    College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
    Beijing Gongye Daxue Xuebao J. Beijing Univ. Technol., 2007, 12 (1310-1314):
  • [37] Simultaneous nitrification-denitrification of wastewater: effect of zeolite as a support in sequential batch reactor with step-feed strategy
    Guerrero, L.
    Montalvo, S.
    Huilinir, C.
    Barahona, A.
    Borja, R.
    Cortes, A.
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2016, 13 (10) : 2325 - 2338
  • [38] Mathematical modelling of simultaneous nitrification and denitrification in biological reactor systems – a review
    R. Bhattacharya
    D. Mazumder
    International Journal of Environmental Science and Technology, 2023, 20 : 8105 - 8126
  • [39] Performance and mechanism of simultaneous nitrification-denitrification and denitrifying phosphorus removal in long-term moving bed biofilm reactor (MBBR)
    Pan, Dandan
    Shao, Sicheng
    Zhong, Jinfeng
    Wang, Minghui
    Wu, Xiangwei
    BIORESOURCE TECHNOLOGY, 2022, 348
  • [40] Simultaneous desulfurization and denitrification by microwave reactor with ammonium bicarbonate and zeolite
    Wei, Zaishan
    Lin, Zhehang
    Niu, Hejingying
    He, Haiming
    Ji, Yongfeng
    JOURNAL OF HAZARDOUS MATERIALS, 2009, 162 (2-3) : 837 - 841
12345