Flow patterns of super-high-rate anaerobic bioreactor

Bioresource Technology
Xiao-Guang ChenShuang Ding

Abstract

The super-high-rate anaerobic bioreactor (SAB) possesses outstanding potential to treat concentrated wastewater. The flow patterns of SAB were investigated through tracer pulse stimulus-response technique and cold-model tests. The flow patterns were demonstrated to be analogous to plug flow at low loading rate and to completely mixed flow at super-high loading rate. Mean dead spaces of SAB caused by biomass and hydraulic behavior were 6.98 % and 21.01 %, respectively. The relationship among the hydraulic dead spaces (V(h)), the volumetric hydraulic loading rate (L) and the volumetric biogas production rate (G) was represented by: V(h)=0.7603 L+0.1627 G - 4.0620. The V(h) was greatly influenced by G over L value. The volumetric efficiency could further be improved when SAB was operated at super-high loading rate. The volume ratio of V(N) and V₁ decreased as N increased and the optimum N was 3.00 or so.

References

Nov 13, 2008·Sheng wu gong cheng xue bao = Chinese journal of biotechnology·Jianwei ChenLei Zhang
Dec 17, 2008·Bioresource Technology·Mitsuharu TerashimaTatsuya Noike
Jan 28, 2010·Journal of Zhejiang University. Science. B·Xiao-guang ChenMahmood Qaisar

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Citations

Mar 29, 2014·BioMed Research International·Awad AbdelgadirNa Liu
Feb 24, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Xiaoguang ChenAwad Abdelgadir
Jul 8, 2019·Environmental Science and Pollution Research International·Zhuo ZengAbbas Ghulam

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