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Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale application

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Abstract

Denitrifying biofilter (DNBF) is widely used for advanced nitrogen removal in the reclaimed wastewater treatment plants (RWWTPs). Manual control of DNBF easily led to unstable process performance and high cost. Consequently, there is a need to automatic control of two decisive operational processes, carbon dosage and backwash, in DNBF. In this study, online control of DNBF was investigated in the pilot-scale DNBF (600 m3·d–1), and then applied in the full-scale DNBF (10 × 104 m3·d–1). A novel simple online control strategy for carbon dosage with the effluent nitrate as the sole control parameter was designed and tested in the pilot-scale DNBF. Backwash operation was optimized based on the backwash control strategy using turbidity as control parameter. Using the integrated control strategy, in the pilot-scale DNBF, highly efficient nitrate removal with effluent TN lower than 3 mg·L–1 was achieved and DNBF was not clogged any more. The online control strategy for carbon dosage was successfully applied in a RWWTP. Using the online control strategy, the effluent nitrate concentration was controlled relatively stable and carbon dosage was saved for 18%.

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References

  1. Yi L, Jiao W, Chen X, Chen W. An overview of reclaimed water reuse in China. Journal of Environmental Sciences (China), 2011, 23 (10): 1585–1593

    Article  Google Scholar 

  2. Torrice M. Challenges to water reuse. Chemical & Engineering News Archive, 2011, 89(17): 38–40

    Article  Google Scholar 

  3. Kringel R, Rechenburg A, Kuitcha D, Fouépé A, Bellenberg S, Kengne I M, Fomo M A. Mass balance of nitrogen and potassium in urban groundwater in Central Africa, Yaounde/Cameroon. Science of the Total Environment, 2016, 547: 382–395

    Article  CAS  Google Scholar 

  4. Nakagawa K, Amano H, Asakura H, Berndtsson R. Spatial trends of nitrate pollution and groundwater chemistry in Shimabara, Nagasaki, Japan. Environmental Earth Sciences, 2016, 75(2343)

    Google Scholar 

  5. Xue D, Pang F, Meng F, Wang Z, Wu W. Decision-tree-model identification of nitrate pollution activities in groundwater: a combination of a dual isotope approach and chemical ions. Journal of Contaminant Hydrology, 2015, 180: 25–33

    Article  CAS  Google Scholar 

  6. EEC. Implementation of Council Directive 91/676/EEC concerning the protection of waters against pollution caused by nitrates from agricultural sources—Synthesis from year 2000 member States Report, 2002

    Google Scholar 

  7. WHO. Guidelines for Drinking Water Quality. World Health Organization: Geneva, 2003

    Google Scholar 

  8. BEPB. Discharge Standard of Water Pollutants for Municipal Wastewater Treatment Plants (DB11/890–2012). In Beijing, 2012

    Google Scholar 

  9. Farabegoli G, Chiavola A, Rolle E. The Biological Aerated Filter (BAF) as alternative treatment for domestic sewage: optimization of plant performance. Journal of Hazardous Materials, 2009, 171(1-3): 1126–1132

    Google Scholar 

  10. Xinwei L I H S K L. Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater reuse. Frontiers of Environmental Science & Engineering, 2015, 9(6): 1076–1083

    Article  Google Scholar 

  11. Peng Y Z, Ma Y, Wang S Y. Denitrification potential enhancement by addition of external carbon sources in a pre-denitrification process. Journal of Environmental Sciences (China), 2007, 19(3): 284–289

    Article  CAS  Google Scholar 

  12. Koch G, Siegrist H. Denitrification with methanol in tertiary filtration at wastewater treatment plant Zürich-Werdhoölzli. Water Research, 1997, 31(12): 3029–3038

    Article  CAS  Google Scholar 

  13. Amburgey J E. Optimization of the extended terminal subfluidization wash (ETSW) filter backwashing procedure. Water Research, 2005, 39(2-3): 314–330

    Article  CAS  Google Scholar 

  14. Slavik I, Jehmlich A, Uhl W. Impact of backwashing procedures on deep bed filtration productivity in drinking water treatment. Water Research, 2013, 47(16): 6348–6357

    Article  CAS  Google Scholar 

  15. Ge S, Peng Y, Wang S, Lu C, Cao X, Zhu Y. Nitrite accumulation under constant temperature in anoxic denitrification process: the effects of carbon sources and COD/NO3-N. Bioresource Technology, 2012, 114: 137–143

    Article  CAS  Google Scholar 

  16. Murphy R B, Young B R, Kecman V. Optimising operation of a biological wastewater treatment application. ISA Transactions, 2009, 48(1): 93–97

    Article  CAS  Google Scholar 

  17. Han H, Qian H, Qiao J. Nonlinear multiobjective model-predictive control scheme for wastewater treatment process. Journal of Process Control, 2014, 24(3): 47–59

    Article  CAS  Google Scholar 

  18. Chen Y, Xiao F, Liu Y, Wang D, Yang M, Bai H, Zhang J. Occurance and control of manganese in a large scale water treatment plant. Frontiers of Environmental Science & Engineering, 2015, 9 (1): 66–72

    Article  Google Scholar 

  19. Miao L, Wang K, Wang S, Zhu R, Li B, Peng Y, Weng D. Advanced nitrogen removal from landfill leachate using real-time controlled three-stage sequence batch reactor (SBR) system. Bioresource Technology, 2014, 159: 258–265

    Article  CAS  Google Scholar 

  20. Yang Q, Peng Y, Liu X, Zeng W, Mino T, Satoh H. Nitrogen removal via nitrite from municipal wastewater at low temperatures using real-time control to optimize nitrifying communities. Environmental Science & Technology, 2007, 41(23): 8159–8164

    Article  CAS  Google Scholar 

  21. Liu X, Wang H, Long F, Qi L, Fan H. Optimizing and real-time control of biofilm formation, growth and renewal in denitrifying biofilter. Bioresource Technology, 2016, 209: 326–332

    Article  CAS  Google Scholar 

  22. APHA. Standard Methods for Examination of Water and Wastewater. American Public Health Association: Washington, DC, 1998.

    Google Scholar 

  23. Sun H, Peng Y, Wang S, Ma J. Achieving nitritation at low temperatures using free ammonia inhibition on Nitrobacter and realtime control in an SBR treating landfill leachate. Journal of Environmental Sciences (China), 2015, 30: 157–163

    Article  Google Scholar 

  24. Claros J, Serralta J, Seco A, Ferrer J, Aguado D. Real-time control strategy for nitrogen removal via nitrite in a SHARON reactor using pH and ORP sensors. Process Biochemistry, 2012, 47(10): 1510–1515

    Article  CAS  Google Scholar 

  25. Amburgey J E, Amirtharajah A. Strategic filter backwashing techniques and resulting particle passage. Journal of Environmental Engineering, 2005, 131(4): 535–547

    Article  CAS  Google Scholar 

  26. Morgenroth E, Wilderer P A. Influence of detachment mechanisms on competition in biofilms. Water Research, 2000, 34(2): 417–426

    Article  CAS  Google Scholar 

  27. Corona F, Mulas M, Haimi H, Sundell L, Heinonen M, Vahala R. Monitoring nitrate concentrations in the denitrifying post-filtration unit of a municipal wastewater treatment plant. Journal of Process Control, 2013, 23(2): 158–170

    Article  CAS  Google Scholar 

  28. Won S G, Ra C S. Biological nitrogen removal with a real-time control strategy using moving slope changes of pH(mV)- and ORPtime profiles. Water Research, 2011, 45(1): 171–178

    Article  CAS  Google Scholar 

  29. Ortega-Gómez E, Moreno Úbeda J C, Alvarez Hervás J D, Casas López J L, Santos-Juanes Jordá L, Sánchez Pérez J A. Automatic dosage of hydrogen peroxide in solar photo-Fenton plants: development of a control strategy for efficiency enhancement. Journal of Hazardous Materials, 2012, 237–238: 223–230

    Article  Google Scholar 

Download references

Acknowledgments

This research was supported by the National Natural Science Foundation of China (Grant No. 51508561). Xiuhong Liu also acknowledges China Postdoctoral Science Foundation (No. 2015M581236) for the financial support.

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Correspondence to Hongchen Wang.

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Liu, X., Wang, H., Yang, Q. et al. Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale application. Front. Environ. Sci. Eng. 11, 4 (2017). https://doi.org/10.1007/s11783-017-0895-9

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  • DOI: https://doi.org/10.1007/s11783-017-0895-9

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