Operation of lab-scale SAD process in wastewater treatment plant
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(1.Key Laboratory of Beijing Water Quality Science & Water Environment Recovery Engineering(Beijing University of Technology), Beijing 100124, China; 2.Technology Research and Development Center, Beijing Sander Environmental Group, Beijing 101102, China; 3.State Key Laboratory of Urban Water Resource and Environment(Harbin Institute of Technology), Harbin 150090, China)

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X523

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    Abstract:

    Lab-scale simultaneously anaerobic ammonia oxidation and denitrification (SAD) process was operated in Municipal Waste Water Treatment Plant (WWTP). Sewage treated by A/O and nitrification process was served as substance to start up anaerobic ammonia oxidation filter reactor. Adding organic carbon-source to influent was served as substance to start up SAD filter reactor after successful start-up of Anammox reactor. Glucose was selected as organic carbon-source because it is harmless and inexpensive. The result show that SAD process performed well with 10, 20, and 30 mg/L Glucose added to effluent sewage at ambient temperature and average total nitrogen concentration of effluent was 9.16, 8.10, and 6.41 mg/L. Compared with Anammox process, SAD process performed better and total nitrogen concentration in effluent decreased 16-42 percents. Stability of SAD process was destroyed and SAD process turned to denitrification process when 30 mg/L Glucose was added in influent sewage in winter. Ammonia in effluent increased from 0.5 mg/L to 6.2 mg/L. The results indicate that temperature has superior effect on SAD process. The total nitrogen concentration in effluent varied from 6.5 to 8.5 mg/L when concentration of Glucose decreased to 20 mg/L. In winter, the effluent of SAD process reached the 1A level of integrated discharge standard of water pollutants applied in Beijing City.

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History
  • Received:May 27,2017
  • Revised:
  • Adopted:
  • Online: October 16,2018
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