Observability of anammox activity in single-stage nitritation/anammox reactors using mass balances

被引:0
|
作者
Schielke-Jenni, Sarina [1 ]
Villez, Kris [1 ]
Morgenroth, Eberhard [1 ,2 ]
Udert, Kai M. [1 ]
机构
[1] Eawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland
[2] ETH, Inst Environm Engn, CH-8093 Zurich, Switzerland
关键词
WASTE-WATER TREATMENT; AUTOTROPHIC NITROGEN REMOVAL; SEQUENCING BATCH REACTOR; ACTIVATED-SLUDGE; NITRIC-OXIDE; PARTIAL NITRIFICATION; HETEROTROPHIC GROWTH; NITRIFYING BACTERIA; AMMONIUM OXIDATION; REACTION SYSTEMS;
D O I
10.1039/c5ew00045a
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In nitritation/anammox reactors, several bacterial groups contribute to the overall nitrogen conversion. Knowing the activity of the main bacterial groups, especially of anaerobic ammonium-oxidising bacteria (AMX), is extremely helpful to understand the process and optimise its operation. Mass balances of dissolved compounds such as ammonium, nitrite and nitrate commonly allow the determination of bacterial activities in a nitritation/anammox process, but the activity of heterotrophic bacteria (HET) is usually neglected. However, even in wastewater with a low organic substrate content, heterotrophic denitrification can contribute substantially to nitrogen removal. The goal of this study was to critically evaluate the applicability of mass balances for the determination of the relevant bacterial activities in a nitritation/anammox process with high HET activity. We set up and solved mass balances of different degrees of complexity. Both linear equation systems, with catabolic reactions alone and with balances according to the activated sludge model stoichiometry, do not allow estimation of any of the considered bacterial activities. When kinetic rate expressions are included, it is possible to compute the concentrations of all considered bacterial groups, but the estimation uncertainty is far too high for practical purposes: the relative standard deviation for AMX is 5280%. In a completely autotrophic system, the relative standard deviation for AMX is only 5%, which proves that the high standard deviations are due to the complexity of the nitration-anammox process with HET activity. The high standard deviations of the calculated bacterial concentrations can be significantly reduced by adding an additional mass balance for the total biomass (standard deviation for AMX activity 1210%). The required number of measurements to achieve an acceptable precision, in our example about 600 conversion rate measurements to reach a 50% standard deviation for the AMX concentration, is still far too high though for practical purposes. To conclude, mass balances including kinetics theoretically allow the observation of the bacterial activities in nitritation/anammox reactors with high HET activity. However, the required precision of the calculated conversion rates, the uncertainty of stoichiometric and kinetic parameters and the reactor dynamics (unsteady conditions) make mass balances unsuitable for practical estimation of AMX activity. Due to high frequency and new online instruments, mass balances might become a suitable tool in the future.
引用
收藏
页码:523 / 534
页数:12
相关论文
共 50 条
  • [1] Single-Stage Nitrogen Removal Using ANAMMOX and Partial Nitritation (SNAP)
    Furukawa, K
    Lieu, PK
    Tokitoh, H
    Fujii, T
    Future of Urban Wastewater Systems - Decentralisation and Reuse, 2005, : 1039 - 1047
  • [2] Aeration Strategies To Mitigate Nitrous Oxide Emissions from Single-Stage Nitritation/Anammox Reactors
    Domingo-Felez, Carlos
    Mutlu, A. Gizem
    Jensen, Marlene M.
    Smets, Barth F.
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2014, 48 (15) : 8679 - 8687
  • [3] Optimization of nitrogen removal performance in a single-stage SBR based on partial nitritation and ANAMMOX
    Choi, Daehee
    Cho, Kyungjin
    Jung, Jinyoung
    WATER RESEARCH, 2019, 162 : 105 - 114
  • [4] Development of single-stage nitrogen removal using anammox and partial nitritation (SNAP) and its treatment performances
    Furukawa, K.
    Lieu, P. K.
    Tokitoh, H.
    Fujii, T.
    WATER SCIENCE AND TECHNOLOGY, 2006, 53 (06) : 83 - 90
  • [5] Treatment of Medium Ammonium Wastewater by Single-stage Partial Nitritation-ANAMMOX SMBBR
    Lü K.
    Shao X.-M.
    Wang K.-Z.
    Yao X.-W.
    Peng D.-C.
    Han Y.
    Huanjing Kexue/Environmental Science, 2021, 42 (07): : 3385 - 3391
  • [6] Improving Efficiency and Stability of Anammox through Sequentially Coupling Nitritation and Denitritation in a Single-Stage Bioreactor
    Li, Jialin
    Peng, Yongzhen
    Zhang, Liang
    Li, Xiyao
    Zhang, Qiong
    Yang, Shenhua
    Gao, Yuan
    Li, Shuai
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2020, 54 (17) : 10859 - 10867
  • [7] Startup and performance of a novel single-stage partial nitritation/anammox system for reject water treatment
    Qian, Yunzhi
    Ding, Yanmei
    Ma, Huaji
    Chi, Yongzhi
    Yuan, Hongying
    Li, Yu-You
    Tian, Sufeng
    Zhang, Bowen
    BIORESOURCE TECHNOLOGY, 2021, 321
  • [8] Startup of pilot-scale single-stage nitrogen removal using anammox and partial nitritation (SNAP) reactor for waste brine treatment using marine anammox bacteria
    Yokota, Nobuyuki
    Mineshima, Ryota
    Watanabe, Yasutsugu
    Tokutomi, Takaaki
    Kiyokawa, Tomohiro
    Nishiyama, Takashi
    Fujii, Takao
    Furukawa, Kenji
    JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 2021, 132 (05) : 505 - 512
  • [9] Upgrading of the symbiosis of Nitrosomanas and anammox bacteria in a novel single-stage partial nitritation-anammox system: Nitrogen removal potential and Microbial characterization
    Liu, Yuan
    Niu, Qigui
    Wang, Shaopo
    Ji, Jiayuan
    Zhang, Yu
    Yang, Min
    Hojo, Toshimasa
    Li, Yu-You
    BIORESOURCE TECHNOLOGY, 2017, 244 : 463 - 472
  • [10] Rapid enrichment of anammox bacteria linked to floc aggregates in a single-stage partial nitritation-anammox process: Providing the initial carrier and anaerobic microenvironment
    Li, Jialin
    Peng, Yongzhen
    Zhang, Qiong
    Li, Xiyao
    Yang, Shenhua
    Li, Shuai
    Zhang, Liang
    WATER RESEARCH, 2021, 191