Experimental Study on the MBR treatment of wastewater from Stevia sugar extraction

Author

Wanfu, Huang ; Zheng, Chen

Author_Institution

Sci. & Technol. Div., Jiangxi Sci. & Technol. Univ., Ganzhou, China

fYear

2011

fDate

22-24 April 2011

Firstpage

3158

Lastpage

3161

Abstract

Wastewater produced during the Stevia sugar extraction process contains high concentration of organic matter. The COD_Cr is still on 1000 mg/L or more with traditional biological treatment process, it is not good. In this experiment, we treat this kind of wastewater by MBR process. The actual operation results show that COD_Cr removal rate was up to 90.9%, TN-, TP removal rates reached 95.66%, 87.86% when we control dissolved oxygen concentration of 5 ~ 6 mg/L, hydraulic retention time in 20 hours. This MBR process has many advantages, such as stable running, good effluent, small occupation area, and simple operation.

Keywords

bioreactors; hydraulic systems; membranes; organic compounds; wastewater treatment; COD_Cr removal rate; MBR process; Stevia sugar extraction; hydraulic retention time; membrane bioreactor; organic matter; oxygen concentration; wastewater treatment; Biology; Chemical engineering; Chemicals; Effluents; Sugar; Sugar industry; Wastewater; Dissolved oxygen; Hydraulic Retention Time; Membrane bioreactor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5774630

Filename

5774630