Optimization of selective sludge discharge mode for enhancing the stability of aerobic granular sludge process

被引：0
|
作者：
机构：
[1] Zhu, Liang
[2] Yu, Yanwen
[3] Dai, Xin
[4] 1,Xu, Xiangyang
[5] Qi, Hanying
来源：
Xu, X. (xuxy@zju.edu.cn) | 1600年 / Elsevier B.V., Netherlands卷 / 217期
关键词：
The selective sludge discharge mode was studied in the aerobic granular sludge reactor for improving the long-term stability of aerobic granular sludge process. Results showed that the nitrogen removal performance was obviously improved with the preliminary granulation of the bioreactor at sludge settling time of 1. min after 15. days. After the formation of fine granular sludge; 5-10% volume of the total granular sludge was discharged for the sludge retention time (SRT) controlling; and the removal efficiencies of NH4+-N and TN reached 95.9 ± 2.0% and 75.3 ± 3.0% at the SRTTotal of 5.3 ± 0.4. days; SRTGranules of 9.9 ± 0.9. days and SRTFlocs of 2.7 ± 0.5. days; respectively. The granular rate and average granular diameter of the bioreactor were stabilized at 80 ± 5.0% and 2.3 ± 0.3. mm; respectively. The results demonstrated that a long SRT of granular sludge leads easily into the deterioration of aerobic granule; and an appropriate selective sludge discharge mode favors the stability of aerobic granular sludge process via the discharge of proportional aging granular sludge and retention of enough new-born flocs. © 2012 Elsevier B.V;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [31] Effects of heterotrophic and autotrophic bacteria on the stability of aerobic granular sludge
    Li, Zhi-Hua
    Zhang, Ting
    Wu, Jie
    Wang, Xiao-Chang
    Tumu Jianzhu yu Huanjing Gongcheng/Journal of Civil, Architectural and Environmental Engineering, 2010, 32 (05): : 76 - 81
  • [32] Effects of feeding mode on the formation and stability of aerobic granular sludge under combined antibiotic stress
    Cheng, Long
    Wei, Mingyu
    Guo, Gang
    Hu, Qixing
    Li, Bingtang
    Jiang, Yifeng
    Hu, Zhiquan
    CHEMICAL ENGINEERING JOURNAL, 2023, 475
  • [33] Strategies to improve aerobic granular sludge stability and nitrogen removal based on feeding mode and substrate
    Yuan, Quan
    Gong, Hui
    Xi, Hao
    Xu, Heng
    Jin, Zhengyu
    Ali, Nasir
    Wang, Kaijun
    JOURNAL OF ENVIRONMENTAL SCIENCES, 2019, 84 : 144 - 154
  • [34] Effect of sludge age on aerobic granular sludge: Addressing nutrient removal performance and biomass stability
    Castellanos, Reynel Martinez
    Rodrigues Dias, Jasmim Muniz
    Bassin, Isabelli Dias
    Dezotti, Marcia
    Bassin, Joao Paulo
    PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, 2021, 149 : 212 - 222
  • [35] Comparing young landfill leachate treatment efficiency and process stability using aerobic granular sludge and suspended growth activated sludge
    Ren, Yanan
    Ferraz, Fernanda
    Lashkarizadeh, Monireh
    Yuan, Qiuyan
    JOURNAL OF WATER PROCESS ENGINEERING, 2017, 17 : 161 - 167
  • [36] Enhancing the Stability of Aerobic Granular Sludge Process Treating Municipal Wastewater by Adjusting Organic Loading Rate and Dissolved Oxygen Concentration
    Peng, Juan
    Zhao, Lei
    Wang, Qiaoru
    Song, Wei
    Wang, Zhuoyue
    Li, Ji
    Zhang, Xiaolei
    Yuan, Fang
    SEPARATIONS, 2022, 9 (08)
  • [37] Biologically induced phosphorus precipitation in aerobic granular sludge process
    Angela, Manas
    Beatrice, Biscans
    Mathieu, Sperandio
    WATER RESEARCH, 2011, 45 (12) : 3776 - 3786
  • [38] Analysis for the impact of loadings in the formation process of aerobic granular sludge
    Lin, Ting
    Wang, Xingang
    Tang, Yubin
    Chen, Fangyan
    ADVANCES IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-6, 2012, 518-523 : 2340 - 2343
  • [39] Research on Micro-Aerobic Granular Sludge in the Process of Cultivation
    Zhu Ling Feng
    Tian Yan E
    Wu Jie Yan
    Wang Xiao Min
    Ye Chao
    Huang Dou Dou
    ADVANCES IN ENVIRONMENTAL TECHNOLOGIES, PTS 1-6, 2013, 726-731 : 2753 - 2756
  • [40] Controlling effluent suspended solids in the aerobic granular sludge process
    van Dijk, Edward J. H.
    Pronk, Mario
    van Loosdrecht, Mark C. M.
    WATER RESEARCH, 2018, 147 : 50 - 59
12345