CHENShan-shan,WANGXiao-dong,ZHOUXiao-lin,et al.Determination of Active Biomass and Its Distribution in Enhanced Denitrification MBBR[J].China Water & Wastewater,2022,38(15):73-77.
Click Copy

Determination of Active Biomass and Its Distribution in Enhanced Denitrification MBBR

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第15期 Page: 73-77 Column: Date of publication: 2022-08-01
Author(s):
CHEN　Shan-shan1;  WANG　Xiao-dong1;  ZHOU　Xiao-lin1;  FAN　Xing1;  SUN　Xian-peng2;  BI　Xue-jun1;  HARSHA Ratnaweera1
（1. School of Environmental and Municipal Engineering， Qingdao University of Technology， Qingdao 266033， China； 2. Qingdao Drainage Operation Service Centre， Qingdao 266000， China）
Keywords:
MBBR;  oxygen uptake rate;  autotrophic active biomass;  heterotrophic active biomass
Abstract:
A pilot?scale enhanced denitrification MBBR was developed. The distribution of the active biomass in each unit was investigated by oxygen uptake rate method, and the effects of different influent loads on the active biomass in each unit were analyzed. The proportion of heterotrophic active biomass in biofilm of each unit was more than 60%. The average heterotrophic active biomass of each filler in anoxic unit was between 0.56-0.86 mg/L, and the proportion of autotrophic active biomass in aerobic units accounted for 37.6%. When SCOD load increased by 0.80-9.70 g/(m2·d), heterotrophic active biomass increased by 0.19-0.53 mg/L. When ammonia nitrogen load increased by 0-1.15 g/(m2·d), autotrophic active biomass increased by 0-0.11 mg/L.
Last Update: 2022-08-01