Efficiency of pressurized biofilm reactor for treatment of pickled mustard tuber wastewater

Author

Jian, Zhou ; Shuang, Chen ; Xiaoxia, Qing ; Guangxu, Qin

Author_Institution

Key Lab. of Three Gorges Reservoir Region´´s Eco-Environ., Chongqing Univ., Chongqing, China

fYear

2011

fDate

22-24 April 2011

Firstpage

5920

Lastpage

5923

Abstract

A pressurized biofilm reactor was developed by combining pressurization, jet aeration and biofilm technologies, and the influence of organic load, pressure and air supply rate on the treatment efficiency of pickled mustard tuber wastewater was investigated. The results show that under the conditions of water temperature of (30 ± 5) °C, pressure of 0.2 Mpa, organic load of 16 kgCOD/ (m³·d), phosphate load of 160 gPO₄^3--P/(m³·d), DO of 5 mg/L, air supply rate of 300 L/h and no sludge discharge, the removal rates of COD and phosphate are 94.6% and 54.3% respectively. Compared with the normal pressure reactor, the removal efficiency of COD is increased by 25 times with biological reduction of phosphate for phosphorus removal. The optimal pressure and air supply are 0.14 MPa and 300 L/h respectively.

Keywords

bioreactors; films; food processing industry; sludge treatment; waste handling; wastewater treatment; biofilm technologies; jet aeration; organic load; phosphate biological reduction; phosphorus removal; pickled mustard tuber wastewater; pressurization; pressurized biofilm reactor; sludge discharge; wastewater treatment; Effluents; Inductors; Microorganisms; Pressure measurement; Temperature measurement; Wastewater; biological reduction of phosphate; load; pickled mustard tuber wastewater; pressurized biofilm reactor;

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.2011.5775433

Filename

5775433