School of Mechanical and Power Engineering;
East China University of Science and Technology;
Shanghai 200237;
China;
National Engineering Laboratory for Industrial Wastewater Treatment;
East China University of Science and Technology;
Shanghai 200237;
China;
State Key Laboratory of Chemical Engineering;
East China University of Science and Technology;
Shanghai 200237;
China;
Gas-liquid reactor; Fractal dimension; Mass transfer; Bubble column;