1. D. Luo, L. Yuan, L. Liu, Y. Wang, W. Fan, The mechanism of biological phosphorus removal under anoxic-aerobic alternation condition with starch as sole carbon source and its biochemical pathway, Biochem. Eng. J., 132 (2018) 90–99.
  2. X.A. Huo, L.J. Yuan, D.C. Luo, R. Wang, Y.P. Nan, Q. Wang, The effect of nitrite on the phosphorus removal in anoxic-aerobic SBR system with lactic acid fermentation, Acta Sci. Circum., 39 (2019) 3966–3972.
  3. X.A. Huo, L.J. Yuan, Q. Wang, D.C. Luo, R. Wang, Y.P. Nan, Nitrate promotes phosphorus removal in the anoxic-aerobic sequencing batch reactor with starch as sole carbon source, Environ. Eng. Sci., 38 (2020) 66–73.
  4. D. Li, J.W. Yang, Y. Li, S. Li, S.R. Zhang, W.Q. Wang, J. Zhang, Aerobic granular sludge operation and nutrients removal mechanism from domestic sewage in an anoxic/aerobic alternating continuous flow, Environ. Sci., 42 (2021) 2386–2395.
  5. H.S. Wang, C. Nan, C.P. Feng, Y. Deng, Insights into heterotrophic denitrification diversity in wastewater treatment systems: progress and future prospects based on different carbon sources, Sci. Total Environ., 780 (2021) 146521, doi: 10.1016/j.scitotenv.2021.146521.
  6. L. Wang, J. Liu, A. Oehmen, C. Le, Y. Geng, Y. Zhou, Butyrate can support PAOs but not GAOs in tropical climates, Water Res., 193 (2021) 116884, doi: 10.1016/j.watres.2021.116884.
  7. G.L. Qiu, X.H. Liu, N.M.M.T. Saw, Y. Law, R. Zuniga-Montanez, S.S. Thi, T.Q.N. Nguyen, P.H. Nielsen, R.B.H. Williams, S. Wuertz, Metabolic traits of Candidatus accumulibacter clade IIF strain SCELSE‑1 using amino acids as carbon sources for enhanced biological phosphorus removal, Environ. Sci. Technol., 54 (2020) 2448–2458.
  8. D.C. Luo, L.J. Yuan, L. Liu, L. Chai, X. Wang, Biological phosphorus removal in anoxic-aerobic sequencing batch reactor with starch as sole carbon source, Water Sci. Technol., 75 (2017) 28–38.
  9. Q. Wang, L.J. Yuan, X. Chen, P. Wei, X.A. Huo, Y. Meng, Biological phosphorus removal and its mechanism in anoxic/aerobic continuous flow system with different carbon sources, Chin. J. Environ. Eng., 15 (2021) 954–961.
  10. X.H. Zhou, L.J. Yuan, X. Chen, R. Yang, M. Zhu, Y.P. Nan, X.F. He, Y. Chen, Screening of phosphorus removing bacteria from activated sludge for biological phosphorus removal: starch-anoxic/aerobic alternation and acetate-anaerobic/aerobic alternation system, China Environ. Sci., 42 (2022) 4166–4173.
  11. F.X. Liu, W. Cheng, J.H. Ren, X. Zhang, M. Wang, T. Wan, T.T. Lv, Relationship of phosphorus removal, extracellular polymeric substances characteristics, and microbial community diversity in an aerobic moving bed biofilm reactor: effect of carbon sources, J. Environ. Chem. Eng., 10 (2022) 108555,
    doi: 10.1016/j.jece.2022.108555.
  12. J. Jena, N. Narwade, T. Das, D. Dhotre, U. Sarkar, Y. Souche, Treatment of industrial effluents and assessment of their impact on the structure and function of microbial diversity in a unique anoxic-aerobic sequential batch reactor (AnASBR), J. Environ. Manage., 261 (2020) 110241, doi: 10.1016/j. jenvman.2020.110241.
  13. L.J. Zhao, C.Y. Su, A.L. Wang, C.P. Fan, X.Y. Huang, F.Q. Li, R.T. Li, Comparative study of aerobic granular sludge with different carbon sources: effluent nitrogen forms and microbial community, J. Water Process Eng., 43 (2021) 102211, doi: 10.1016/j.jwpe.2021.102211.
  14. Y.J. Li, Y.P. Wu, S.P. Wang, L.Y. Jia, Effect of organic loading on phosphorus forms transformation and microbial community in continuous-flow A2/O process, Water Sci. Technol., 83 (2021) 2640–2651.
  15. S.E.P.A. Chinese, Water and Wastewater Monitoring Methods, 4th ed., Chinese Environmental Science Publishing House, China, 2002.
  16. C. Guo, H.Y. Liu, Q. Wang, S.Q Liu, Y.L. Luo, X.Y. Liu, Existing morphology of phosphorus indephosphorization granular sludge and its content analysis, Saf. Environ. Eng., 22 (2015) 44–48.
  17. Y.J. Li, S.P. Wang, Z. Li, L.P. Sun, Extraction method and structural and composition characteristics of extracellular polymeric substances in granular sludge from an enhanced biological phosphorus removal system, Desal. Water Treat., 185 (2020) 41–50.
  18. J. Zhou, L.X. Zhou, H.Z. Huang, Optimization of extracellular polymeric substance extraction method and its role in the dewater ability of sludge, Environ. Sci., 34 (2013) 2752–2757.
  19. C.H. Tan, K.S. Kon, C. Xie, M. Tay, Y. Zhou, R. Williams, W.J. Ng, S.A. Rice, S. Kjelleberg, The role of quorum sensing signaling in EPS production and the assembly of a sludge community into aerobic granules, ISME J., 8 (2013) 1186–1197.
  20. J.J. Liu, Y. Yuan, X.Y. Li, Z.J. Xue, Y.Z. Peng, Effect of pre-treatment with humic acids on the activity of nitrifying bacteria in activated sludge, J. Harbin Inst. Technol., 49 (2017) 15–19.
  21. X. Wang, M. Ji, J.F. Wang, Z. Liu, Z.Y. Yang, Anaerobic uptake of phosphorus under alteration of anaerobic/aerobic condition, J. T. Univ., 39 (2006) 214–218.
  22. Y. Deng, Synergistic Symbiosis of Double PAOs to Enhanced Biological Phosphorus Removal Based on Different Types of Organic Substrates, Dissertation, Lanzhou Jiaotong University, China, 2022.
  23. H. Qu, X.Y. Shi, Z.B. Nie, Q.Z. Li, W.A. Liu, G. Yu, Y.G. Ma, D.J. Bian, Phosphorus morphology transformation law and sludge characteristics of AOA-SBR process under different C/P, China Environ. Sci., 42 (2022) 92–101.
  24. Y. Xiao, Research progress of biological denitrification and nitrogen removal technology promoted by slow release carbon source, J. Environ. Eng. Technol., 12 (2022) 760–768.
  25. L.Q. Zhang, Z.J. Lei, S.G. Li, F.D. Huang, B. Shao, X.H. Zhu, Nitrogen removal performance of solid carbon source biofilm reactor for treatment of nitrate contaminated ground water, Environ. Pollut. Control, 42 (2020) 937–942.
  26. L. Zhao, C. Su, A. Wang, C. Fan, X. Huang, F. Li, R. Li, Comparative study of aerobic granular sludge with different carbon sources: effluent nitrogen forms and microbial community, J. Water Process Eng., 43 (2021) 102211, doi: 10.1016/j.jwpe.2021.102211.