Adsorbing colloid flotation of As(V) - Feasibility of utilizing streaming current detector

被引：14

作者：

Lin, MC ^{[1
]}

Liu, JC ^{[1
]}

机构：

[1] NATL TAIWAN INST TECHNOL,DEPT CHEM ENGN,TAIPEI,TAIWAN

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1996年 / 31卷 / 11期

关键词：

D O I：

10.1080/01496399608001417

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A feasibility study was conducted to assess the application of a streaming current detector (SCD) in notation processes. The adsorbing colloid notation (ACF) of As(V) with iron oxide and sodium dodecylsulfate (SDS) was investigated. Both zeta potential and streaming current (SC) reading of each colloidal systems were measured. Results show SC changed with pH values and can be well correlated to zeta potential. The optimum pH range for As(V) removal was found to be ca. 4-5. Removal of As(V) as affected by SDS concentration, colloidal concentration, and gas flow rate were investigated, It is proposed that both free arsenic oxyanions and iron-arsenate complex were involved in the process. Preliminary results show it feasible for SCD to be utilized in adsorbing colloid flotation.

引用

页码：1629 / 1641

页数：13

共 20 条

[1] THE STREAMING CURRENT DETECTOR - A COMPARISON WITH CONVENTIONAL ELECTROKINETIC TECHNIQUES [J].