References
  -  Z. Wang, Y.H. Jiang, M.K. Awasthi, J. Wang, X.G. Yang,
    A. Amjad, Q. Wang, A.H. Lahori, Z.Q. Zhang, Nitrate removal
    by combined heterotrophic and autotrophic denitrification
    processes: impact of coexistent ions, Bioresour. Technol.,
    250 (2018) 838–845. 
-  E. Sahinkaya, A. Yurtsever, A. Özgür, D. Ucar, Z.W. Wang,
    Sulfur-based autotrophic denitrification of drinking water
    using a membrane bioreactor, Chem. Eng. J., 268 (2015) 180–186. 
-  Y.Q. Xue, J.B. Guo, J. Lian, Y.Y. Zhang, C. Zhang, Y. Zhao, Effect
    of a higher hydraulic shear force on denitrification granulation
    in upflow anoxic sludge blanket reactors, Biochem. Eng. J.,
    105 (2016) 136–143. 
-  W.Y. Niu, J.B. Guo, J. Lian, H.H. Ngo, H.Y. Li, Y.Y. Song,
    H.B. Li, P.N. Yin, Effect of fluctuating hydraulic retention
    time (HRT) on denitrification in the UASB reactors, Biochem.
    Eng. J., 132 (2018) 29–37. 
-  J.P.S. Sukias, J.B.K. Park, R. Stott, C.C. Tanner, Quantifying
    treatment system resilience to shock loadings in constructed
    wetlands and denitrification bioreactors, Water Res., 139 (2018)
    450–461. 
-  X. Zhou, Y.P. Han, X.S. Guo, Identification and evaluation
    of SND in a full-scale multi-channel oxidation ditch system
    under different aeration modes, Chem. Eng. J., 259 (2015)
    715–723. 
-  D.C. Catling, M.W. Claire, K.J. Zahnle, R.C. Quinn, B.C. Clark,
    M.H. Hecht, S. Kounaves, Atmospheric origins of perchlorate
    on Mars and in the Atacama, J. Geophys. Res. 115 (2010) 1–15. 
-  W. Song, B.Y. Gao, X. Xu, F. Wang, N. Xue, S.L. Sun,
    W.C. Song, R.B. Jia, Adsorption of nitrate from aqueous
    solution by magnetic amine-crosslinked biopolymer based
    corn stalk and its chemical regeneration property, J. Hazard.
    Mater., 304 (2016) 280–290. 
-  X.S. Cao, D. Qian, X.Z. Meng, Effect of pH on nitrite
    accumulation during wastewater denitrification, Environ.
    Technol., 34 (2013) 45–51. 
-  C. Glass, J. Silverstein, J. Oh, Inhibition of denitrification in
    activated sludge by nitrite, Water Environ. Res., 69 (1997)
    1086–1093. 
-  D.J. Wan, Y.D. Liu, Y.Y. Wang, H.J. Wang, S.H. Xiao,
    Simultaneous bio-autotrophic reduction of perchlorate and
    nitrate in a sulfur packed bed reactor: kinetics and bacterial
    community structure, Water Res., 108 (2017) 280–292. 
-  W. Song, B.Y. Gao, H.L. Wang, X. Xu, M. Xue, M.C. Zha, B.
    Gong, The rapid adsorption-microbial reduction of perchlorate
    from aqueous solution by novel amine-crosslinked magnetic
    biopolymer resin, Bioresour. Technol., 240 (2017) 68–76. 
-  S.W. Van Ginkel, R. Lamendella, W.P. Kovacik, J.W. Santo
    Domingo, B.E. Rittmann, Microbial community structure
    during nitrate and perchlorate reduction in ion-exchange brine
    using the hydrogen-based membrane biofilm reactor (MBfR),
    Bioresour. Technol., 101 (2010) 3747–3750. 
-  Z.G. Chen, X.J. Wang, Y.Y. Yang, M.W. Mirino, Y.L. Yuan, Partial
    nitrification and denitrification of mature landfill leachate
    using a pilot-scale continuous activated sludge process at
    low dissolved oxygen, Bioresour. Technol., 218 (2016) 580–588. 
-  C.J. Tang, P. Zheng, C.H. Wang, Q. Mahmood, J.Q. Zhang,
    X.G. Chen, L. Zhang, J.W. Chen, Performance of high-loaded
    ANAMMOX UASB reactors containing granular sludge,
    Water Res., 45 (2011) 135–144. 
-  G.P. Sheng, H.Q. Yu, X.Y. Li, Stability of sludge flocs under
    shear conditions, Biochem. Eng. J., 38 (2008) 302–308. 
-  M. Verawaty, S. Tait, M. Pijuan, Z.G. Yuan, P.L. Bond, Breakage
    and growth towards a stable aerobic granule size during
    the treatment of wastewater, Water Res., 47 (2013) 5338–5349. 
-  L.H. Mikkelsen, K. Keiding, The shear sensitivity of activated
    sludge: an evaluation of the possibility for a standardised
    floc strength test, Water Res., 36 (2002) 2931–2940. 
-  APHA, Standard Methods for the Examination of Water and
    Wastewater, 20th ed., American Public Health Association,
    Washington, DC, USA, 1998. 
-  S.S. Adav, D.J. Lee, Extraction of extracellular polymeric
    substances from aerobic granule with compact interior
    structure, J. Hazard. Mater., 154 (2008) 1120–1126. 
-  M.M. Bradford, A rapid and sensitive method for the
    quantitation of microgram quantities of protein utilizing the
    principle of protein-dye binding, Anal. Biochem., 72 (1976)
    248–254. 
-  L. Xia, X.M. Li, W.H. Fan, J.L. Wang, Heterotrophic nitrification
    and aerobic denitrification by a novel Acinetobacter sp.
    ND7 isolated from municipal activated sludge, Bioresour.
    Technol., 301 (2020) 122749, doi: 10.1016/j.biortech.2020.122749. 
-  J. Oh, J. Silverstein, Acetate limitation and nitrite accumulation
    during denitrification, J. Environ. Eng., 125 (1999) 234–242. 
-  K. Calder, K.A. Burke, J. Lascelles, Induction of nitrate
    reductase and membrane cytochromes in wild type and
    chlorate resistant Paracouccis denitrificans, Arch. Microbiol.,
    126 (1980) 149–153. 
-  H. Körner, W.G. Zumft, Expression of denitrification enzymes
    in response to the dissolved oxygen level and respiratory
    substrate in continuous culture of Pseudomonas stutzeri, Appl. Environ. Microbiol., 55 (1989) 1670–1676. 
-  S. Chen, C. Juaw, S. Cheng, Nitrification and denitrification
    of high-strength ammonium and nitrite wastewater with
    biofilm reactors, Water Sci. Technol., 23 (1991) 14–17. 
-  S. Sevda, T.R. Sreekishnan, N. Pous, S. Puig, D. Pant,
    Bioelectroremediation of perchlorate and nitrate contaminated
    water: a review, Bioresour. Technol., 255 (2018) 331–339. 
-  A. Ghosh, K. Pakshirajan, P.K. Ghosh, N.K. Sahoo, Perchlorate
    degradation using an indigenous microbial consortium
    predominantly Burkholderia sp., J. Hazard. Mater., 187 (2011)
    133–139. 
-  P.N. Yin, J.B. Guo, S.M. Xiao, Z. Chen, Y.Y. Song, X.N. Ren,
    Rapid of cultivation dissimilatory perchlorate reducing
    granular sludge and characterization of the granulation
    process, Bioresour. Technol., 276 (2019) 260–268. 
-  J.E. Schmidt, B.K. Ahring, Granular sludge formation in
    upflow anaerobic sludge blanket (UASB) reactors, Biotechnol.
    Bioeng., 49 (1996) 229–246. 
-  Y. Miao, R. Liao, X.X. Zhang, B. Liu, Y. Li, B. Wu, A. Li,
    Metagenomic insights into salinity effect on diversity and
    abundance of denitrifying bacteria and genes in an expanded
    granular sludge bed reactor treating high-nitrate wastewater,
    Chem. Eng. J., 277 (2015) 116–123. 
-  S. Yoshie, H. Makino, H. Hirosawa, K. Shirotani, S. Tsuneda,
    A. Hirata, Molecular analysis of halophilic bacterial
    community for high-rate denitrification of saline industrial
    wastewater, Appl. Microbiol. Biotechnol., 72 (2006) 182–189. 
-  X.M. Chen, Y.W. Liu, L. Peng, B.J. Ni, Perchlorate, nitrate, and
    sulfate reduction in hydrogen-based membrane biofilm reactor:
    model-based evaluation, Chem. Eng. J., 316 (2017) 82–90. 
-  T.R. Devlin, A.D. Biase, M. Kowalski, J.A. Oleszkiewicz,
    Granulation of activated sludge under low hydrodynamic shear
    and different wastewater characteristics, Bioresour. Technol.,
    224 (2017) 229–235. 
-  B. Long, C.Z. Yang, W.H. Pu, J.K. Yang, F.B. Liu, L. Zhang,
    J. Zhang, K. Cheng, Tolerance to organic loading rate by
    aerobic granular sludge in a cyclic aerobic granular reactor,
    Bioresour. Technol., 182 (2015) 314–322. 
-  S.F. Corsino, M. Capodici, F.D. Pippo, V. Tandoi, M. Torregrossa,
    Comparison between kinetics of autochthonous marine
    bacteria in activated sludge and granular sludge systems at
    different salinity and SRTs, Water Res., 148 (2019) 425–437.