电解质与粘性细颗粒泥沙絮凝的关系  

Relationship between Electrolyte and Cohesive Fine Sediment Flocculation

作　　者：周晶晶[1] 金鹰[1] 冯卫兵[1] 

机构地区：[1]河海大学海洋学院,南京210098

出　　处：《武汉理工大学学报（交通科学与工程版）》2007年第6期1071-1074,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：粘性细颗粒泥沙的絮凝与诸多因素有关，如颗粒粒径、盐度、含沙量、温度、电解质、水文条件，等等．其中电解质是较重要、较复杂的因素．通过静水沉降实验，得出细颗粒泥沙的絮凝与电解质的浓度成曲线关系，实验分析皂土在15‰～20‰的电解质浓度中絮凝程度最大；与阳离子种类有关表现在各种离子的水化半径不同，导致在电解质溶液中絮凝程度的不同；还与离子的价态有关，絮凝的程度随着离子价态的升高而增大．The flocculation of cohesive fine sediment is related to a lot of factors, such as granule diameter, salinity, sandiness, temperature, electrolyte, hydrological conditions, etc. The relationship between the fine sediment flocculation and electrolyte＇s concentration is presented in this paper. The experiment shows that the Bentonite＇s flocculation grade is the highest in 15‰-20‰ solution. The Bentonite＇s flocculation grade is also related to the positive ion＇s category and the electric charge.

关 键 词：细颗粒泥沙 絮凝 电解质 

分 类 号：TV141[水利工程—水力学及河流动力学]