School of Chemical Engineering;
Northeast Electric Power University;
JiJin 132012;
China;
Key Laboratory of Songliao Aquatic Environment;
Ministry of Education;
Jilin Jianzhu University;
Changchun 130118;
China;
Institute of Soil and Solid Waste;
Chinese Research Academy of Environmental Sciences;
Beijing 100012;
China;
School of Environment;
Northeast Normal University;
Changchun 130117;
China;
Al3+; A^2O; Wastewater treatment; Specific surface area; Sludge properties; Pollutant removal efficiency;