聚硅酸硫酸铝絮凝剂的制备及性能研究  

Preparation,Characterization and Flocculation Performance of Polysilicate Aluminum Sulfate Flocculant

作　　者：杨慧 沈苏阳 Yang Hui;Shen Suyang(College of Life Science and Chemistry,Jiangsu Secondary Normal University,Nanjing 211200;State Key Laboratory of Coordination Chemistry,School of Chemistry and Chemical Engineering,Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China)

机构地区：[1]江苏第二师范学院生命科学与化学化工学院生物功能分子实验室,江苏南京210013 [2]南京大学化学化工学院配位化学国家重点研究室,江苏南京210093

出　　处：《广东化工》2020年第12期25-27,30,共4页Guangdong Chemical Industry

基　　金：江苏省生物功能分子重点实验室开放课题资助课题(No.85604);国家自然科学基金(No.21905120)。

摘　　要：本文尝试利用硫酸铝对活性硅酸进行改性,制备聚硅酸硫酸铝絮凝剂(PSAS)。研究表明,pH为3.0,铝硅摩尔比为1∶1时,制备的PSAS具有良好的稳定性和絮凝效果。其对pH约为7~9的中性浊水处理效果较好,在本次实验中最佳用量约为10 mg/L。其对高浊度实际水样及染料废水的净化和脱色能力较强,尤其对无机染料的脱色率约为99%。In this paper,activated silicic acid was truied to modified with aluminum sulfate to prepare modified polysilicate aluminum sulfate flocculant(PSAS).Studies have shown that when pH=3.0 and the ratio of aluminum to silicon is 1∶1,the prepared PSAS exhibits better stability and flocculation effects.Furthermore,PSAS has a better treatment effect on neutral turbid water with pH of about 7~9.In this experiment,the optimal dosage of PSAS is about 10 mg/L.It shows strong purification and decolorization capabilities for high turbidity actual water samples and dye wastewater,especially for inorganic dyes with a decolorization rate of about 99%.

关 键 词：无机高分子絮凝剂 聚硅酸硫酸铝 制备 废水处理 

分 类 号：O611.3[理学—无机化学]