Response surface methodology for the optimization of sludge solubilization by ultrasonic pre-treatment

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Zheng, Mingyue^1 ; Zhang, Xiaohui^1 ; Lu, Peng^1 ; Cao, Qiguang^1 ; Yuan, Yuan^1 ; Yue, Mingxing^1 ; Fu, Yiwei^2 ; Wu, Libin^3

College of Bioengineering, Beijing Polytechnic, Beijing

100176, China^1

College of Automation Engineering, Beijing Polytechnic, Beijing

100176, China^2

Daqing Oil Field Co Logistic Administration, Daqing, Heilongjiang

163400, China^3

关键词: Box-Behnken design;    Independent variables;    Organic components;    Pretreatment conditions;    Response surface;    Response surface methodology;    Sludge disintegration;    Sludge solubilization;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012177/pdf
DOI  :  10.1088/1755-1315/113/1/012177

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The present study examines the optimization of the ultrasonic pre-treatment conditions with response surface experimental design in terms of sludge disintegration efficiency (solubilisation of organic components). Ultrasonic pre-treatment for the maximum solubilization with residual sludge enhanced the SCOD release. Optimization of the ultrasonic pre-treatment was conducted through a Box-Behnken design (three variables, a total of 17 experiments) to determine the effects of three independent variables (power, residence time and TS) on COD solubilization of sludge. The optimal COD was obtained at 17349.4mg/L, when the power was 534.67W, the time was 10.77, and TS was 2%, while the SE of this condition was 28792J/kg TS.