ZHOU Xiao-lin,FAN Xing,BI Xue-jun,et al.Pilot-scale Test and System Optimization of Two-stage A/O-MBBR Process for Biological Nitrogen Removal[J].China Water & Wastewater,2021,37(19 19):72-77.
Pilot-scale Test and System Optimization of Two-stage A/O-MBBR Process for Biological Nitrogen Removal
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
19 19
Page:
72-77
Column:
Date of publication:
2021-10-01
- Keywords:
- two-stage A/O; moving bed biofilm reactor (MBBR); biological nitrogen removal (BNR); nitrification; denitrification
- Abstract:
- A two-stage A/O-MBBR system integrating high-efficiency biological nitrogen removal and organic pollutants removal was constructed to solve the technical problem of high standard nitrogen removal in an urban sewage treatment, and the real urban sewage was treated in the pilot-scale test. When the reaction temperature was (26.8±1.3) ℃, the average organic load［calculated by dissolved COD (SCOD)］and ammonia nitrogen load were 338.57 g/(m3·d) and 108.58 g/(m3·d), respectively, the SCOD, ammonia nitrogen and total inorganic nitrogen in the effluent of the two-stage A/O-MBBR system were (23.97± 1.84) mg/L, (0.47± 0.16) mg/L and (4.35± 0.81) mg/L, respectively. The functional biofilm was formed in different areas by optimizing the two-stage A/O-MBBR system. The two-stage A/O-MBBR system achieved the goal of efficient nitrogen removal on the basis of the efficient utilization of the influent carbon source.
Last Update:
2021-10-01