Related Experiment Video
Updated: May 24, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
Dynamic behavior and concentration distribution of granular sludge in a super-high-rate spiral anaerobic bioreactor
Xiao-Guang Chen1, Ping Zheng, Mahmood Qaisar
1College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China. cxg@dhu.edu.cn
Abstract:
Dynamic behavior and concentration distribution of granular sludge is highly dependent on the ecological environment of microbial communities and substrate degradation efficiency along bed height. Both were modeled and verified through experiments in a super-high-rate spiral anaerobic bioreactor (SSAB). The sludge transport efficiency of upmoving biogas (k(t),(n)(-1)) displaying dynamic behavior of granular sludge in SSAB were predicted and found to be much lesser than of upflow anaerobic sludge blanket (UASB). The bed concentration distribution (C(m),(n)(-1)/C(m),(n)) which represented concentration distribution of granular sludge were also quantitatively predicted in two feeding strategies. Parametric sensitivity suggested that k(t),(n)(-1) was significantly influenced by spiral angle, outer radii of spiral rectangular channel, settling velocity of granular sludge and superficial liquid velocity (v(l)), while C(m),(n)(-1)/C(m),(n) was affected by v(l) and superficial biogas velocity. In addition, some measures were also suggested to optimize designs and operations of such bioreactors.
More Related Videos
11:31Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
Published on: July 13, 2012
15:19Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
Related Concept Videos
Bioreactor Controls-II
Bioreactor Design and Operational System
Microbial Mats
Designing Growth Media for Bioreactors
Scale-Up Processes
Bioreactor Controls-I