1. Y. Yin, G. Xu, L. Li, Y. Xu, Y. Zhang, C. Liu, Z. Zhang, Fabrication of ceramsite adsorbent from industrial wastes for the removal of phosphorus from aqueous solutions, J. Chem., 2020 (2020) 1–13.
  2. R.R. Karri, J.N. Sahu, V. Chimmiri, Critical review of abatement of ammonia from wastewater, J. Mol. Liq., 261 (2018) 21–31.
  3. B. Mitrică, E. Mitrică, P. Enciu, I. Mocanu, An approach for forecasting of public water scarcity at the end of the 21st century, in the Timiş Plain of Romania, Technol. Forecasting Social Change, 118 (2017) 258–269.
  4. D. Mulkerrins, C. Jordan, S. McMahon, E. Colleran, Evaluation of the parameters affecting nitrogen and phosphorus removal in anaerobic/anoxic/oxic (A/A/O) biological nutrient removal systems, J. Chem. Technol. Biotechnol., 75 (2000) 261–268.
  5. Y. Qiu, H.-C. Shi, M. He, Nitrogen and phosphorous removal in municipal wastewater treatment plants in china: a review, Int. J. Chem. Eng., 2010 (2010).
  6. X. Wang, J. Liu, N.Q. Ren, Z. Duan, Environmental profile of typical anaerobic/anoxic/oxic wastewater treatment systems meeting increasingly stringent treatment standards from a life cycle perspective, Bioresour. Technol., 126 (2012) 31–40.
  7. A. Oehmen, P.C. Lemos, G. Carvalho, Z. Yuan, J. Keller, L.L. Blackall, M.A.M. Reis, Advances in enhanced biological phosphorus removal: from micro to macro scale, Water Res., 41 (2007) 2271–2300.
  8. B. Zhang, T. Gao, An anoxic/anaerobic/aerobic process for the removal of nitrogen and phosphorus from wastewater, J. Environ. Sci. Health Part A, 35 (2000) 1797–1801.
  9. H.B. Chen, X. Tang, B. Dong, T.Y. Gao, M. Wagner, Study on fullscale application of reversed AAO process, Fresenius Environ. Bull., 17 (2008) 652–657.
  10. S. Xu, M. Bernards, Z. Hu, Evaluation of anaerobic/anoxic/oxic (A2/O) and reverse A2/O processes in biological nutrient removal, Water Environ. Res., 86 (2014) 2186–2193.
  11. X.S. Kang, C.Q. Liu, B. Zhang, X.J. Bi, F. Zhang, L.H. Cheng, Application of reversed A2/O process on removing nitrogen and phosphorus from municipal wastewater in China, Water Sci. Technol., 63 (2011) 2138–2142.
  12. F.G.D.B.Z.Z.G. Ting-yao, Design characteristics and operating parameters of inverted AAO process, China Water Wastewater, 9 (2004) 53–55.
  13. Z. Zhou, Z. Wu, Z. Wang, S. Tang, G. Gu, L. Wang, Y. Wang, Z. Xin, Simulation and performance evaluation of the anoxic/ anaerobic/aerobic process for biological nutrient removal, Korean J. Chem. Eng., 28 (2011) 1233–1240.
  14. Y. Hongwei, J. Zhanpeng, S. Shaoqi, W.Z. Tang, INT-dehydrogenase activity test for assessing anaerobic biodegradability of organic compounds, Ecotoxicol. Environ. Saf., 53 (2002) 416–421.
  15. K. Vig, M. Megharaj, N. Sethunathan, R. Naidu, Bioavailability and toxicity of cadmium to microorganisms and their activities in soil: a review, Adv. Environ. Res., 8 (2003) 121–135.
  16. J. Yin, X.J. Tan, N.Q. Ren, Y.B. Cui, L. Tang, Evaluation of heavy metal inhibition of activated sludge by TTC and INT-electron transport system activity tests, Water Sci. Technol., 52 (2005) 231–239.
  17. J. Awong, G. Bitton, B. Koopman, ATP, oxygen uptake rate and INT-dehydrogenase activity of actinomycete foams, Water Res., 19 (1985) 917–921.
  18. Y. Cui, T. Sun, L. Zhao, T. Jiang, L. Zhang, Performance of wastewater sludge ecological stabilization, J. Environ. Sci., 20 (2008) 385–389.
  19. Z.S. Han, J.Y. Tian, H. Liang, J. Ma, H.R. Yu, K. Li, A. Ding, G.B. Li, Measuring the activity of heterotrophic microorganism in membrane bioreactor for drinking water treatment, Bioresour. Technol., 130 (2013) 136–143.
  20. J.M. Lopez, B. Koopman, G. Bitton, INT-dehydrogenase test for activated sludge process control, Biotechnol. Bioeng., 28 (1986) 1080–1085.
  21. X.S. Kang, C.Q. Liu, L.Z. Huang, G.F. Chang, Z. Qiao, B. Zhang, X.J. Bi, The different metabolic activity of activated sludge samples taken from reversed A2/O process and conventional A2/O process, Adv. Mater. Res., 193–185 (2011) 1476–1480.
  22. C. Maurines-Carboneill, J.J. Pernelle, L. Morin, G. Sachon, G. Leblon, Relevance of the INT test response as an indicator of ETS activity in monitoring heterotrophic aerobic bacterial populations in activated sludges, Water Res., 32 (1998) 1213–1221.
  23. L.H. Nguyen, N.M. Chong, Development of an ATP measurement method suitable for xenobiotic treatment activated sludge biomass, J. Chromatogr. B Anal. Technol. Biomed. Life Sci., 1000 (2015) 69–76.
  24. G. Lenhard, A standardized procedure for the determination of dehydrogenase activity in samples from anaerobic treatment systems, Water Res., 2 (1968) 161–167.
  25. R.A. Kenner, S.I. Ahmed, Measurements of electron transport activities in marine phytoplankton, Mar. Biol., 33 (1975) 119–127.
  26. M. Zhang, Y. Zhang, Z. Li, C. Zhang, X. Tan, X. Liu, C. Wan, X. Yang, D.J. Lee, Anaerobic co-digestion of food waste/excess sludge: substrates - products transformation and role of NADH as an indicator, J. Environ. Manage., 232 (2019) 197–206.
  27. W. Ying, NAD+/NADH and NADP+/NADPH in cellular functions and cell death: Regulation and biological consequences, Antioxid. Redox Signalling, 10 (2008) 179–206.
  28. G. Farabegoli, C. Hellinga, J.J. Heijnen, M.C.M. Van Loosdrecht, Study on the use of NADH fluorescence measurements for monitoring wastewater treatment systems, Water Res., 37 (2003) 2732–2738.
  29. W.B. Armiger, G. Lee, K. Bordacs, K.D. Tracy, Automated On-line Control Strategy for the Optimization of nutrient removal processes, in Instrumentation, Control and Automation of Water and Wastewater Treatment and Transport Systems, 1990, pp. 187–194.
  30. H. Lu, J. Keller, Z. Yuan, Endogenous metabolism of Candidatus Accumulibacter phosphatis under various starvation conditions, Water Res., 41 (2007) 4646–4656.
  31. C. Niu, W. Liang, H. Ren, J. Geng, L. Ding, K. Xu, Enhancement of activated sludge activity by 10–50 mT static magnetic field intensity at low temperature, Bioresour. Technol., 159 (2014) 48–54.
  32. A.C. Lizama, C.C. Figueiras, A.Z. Pedreguera, J.E. Ruiz Espinoza, Enhancing the performance and stability of the anaerobic digestion of sewage sludge by zero valent iron nanoparticles dosage, Bioresour. Technol., 275 (2019) 352–359.
  33. C. Misic, A. Covazzi Harriague, F. Giglio, R. La Ferla, A.C. Rappazzo, M. Azzaro, Relationships between electron transport system (ETS) activity and particulate organic matter features in three areas of the Ross Sea (Antarctica), J. Sea Res., 129 (2017) 42–52.
  34. H. Lee, J. Han, Z. Yun, Biological nitrogen and phosphorus removal in UCT-type MBR process, Water Sci. Technol., 59 (2009) 2093–2099.
  35. M.J. Simpkins, A.R. McLaren, Consistent biological phosphate and nitrate removal in an activated sludge plant, Prog. Water Technol., 10 (1978) 433–442.
  36. X. Bi, C. Q. Liu, L. Cheng, F. Zhang, B. Zhang, The Principal and Full-Scale Application of Reversed A²/O Process for Removing Nitrogen and Phosphorus from Municipal Wastewater, 3rd International Conference on Bioinformatics and Biomedical Engineering, IEEE, Beijing, 2009, pp. 1–4, doi: 10.1109/ ICBBE.2009.5163643.