摘要
利用透射电子显微镜(ＴＥＭ)和扫描电子显微镜(ＳＥＭ)观察了聚硅酸锌(ＰＳＡＺ)絮凝剂的凝胶颗粒结构,考察了不同浓度的锌离子与二氧化硅含量以及不同阴离子组成对聚硅酸锌絮凝剂凝胶结构的影响．对比了锌离子和铝离子形成聚硅酸盐絮凝剂的结构特征．同时比较了聚硅酸锌絮凝剂和铝系列絮凝剂的絮凝效果．
Using transmission electron microscope (TEM) and sweep electron microscope (SEM), the flocculants colloid structure of zine polysilicate (PSAZ) is observed and it is reviewed that di-fferent concentration of zine ion and silicon dioxide and different composition of anion influence the structur of flocculation (PSAZ). The stucture feature of forming polysilicate by zine and aluminum ions are compared. The results of contrast test showed that the flocculation effect of PSAZ is better than that of aluminum flocculants.
出处
《环境化学》
CAS
CSCD
北大核心
2001年第2期179-184,共6页
Environmental Chemistry
基金
国家自然科学基金资助项目(批准号29762002)
广西省科委配套项目.
关键词
聚硅酸锌
聚硅酸铝
凝胶结构
电镜特征
絮凝效果
絮凝剂
zine polysilicate (PSAZ)
aluminum polysilicate (PSAA)
electronmicroscope's features
structure of flocculants colloid
flocculation effect.
