Related Experiment Video
Updated: Mar 19, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
Effect of different salinity adaptation on the performance and microbial community in a sequencing batch reactor
Yuanyuan Zhao1, Hee-Deung Park2, Jeong-Hoon Park2
1School of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
Abstract:
The performance and microbial community profiles in a sequencing batch reactor (SBR) treating saline wastewater were studied over 300days from 0wt% to 3.0wt% salinity. The experimental results indicated that the activated sludge had high sensitivity to salinity variations in terms of pollutants removal and sedimentation. At 2.0wt% salinity, the system retained a good performance, and 95% removal rate of chemical oxygen demand (COD), biochemical oxygen demand (BOD), NH4(+)-N and total phosphorus (TP) could be achieved. Operation before addition salinity revealed the optimal performance and the most microbial diversity indicated by 16S rRNA gene clone library. Sequence analyses illustrated that Candidate_division_TM7 (TM7) was predominant at 2.0 wt% salinity; however, Actinobacteria was more abundant at 3.0wt% salinity.
More Related Videos
Related Concept Videos
Marine Microbial Ecology
Bioreactor Design and Operational System
Bioreactor Controls-III
Deep Sea Microbial Ecology
Factors Influencing Microbial Growth: Osmolarity
Bioreactor Controls-I

