The effect of metal ions on humic acid removal and permeation properties in an ultrafiltration system

被引：11

作者：

Hsu, CS ^{[1
]}

Chen, SH ^{[1
]}

Liou, RM ^{[1
]}

Hung, MY ^{[1
]}

Yu, KC ^{[1
]}

机构：

[1] Chia Nan Univ Pharm & Sci, Dept Environm Engn & Hlth, Tainan 717, Taiwan

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2003年 / 38卷 / 02期

关键词：

humic acid; complex; ultrafiltration; metal ion;

D O I：

10.1081/ESE-120016904

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

With a view to improving the removal of humic acid from aqueous solution, the effect of metal ion addition on the separation of humic acid from water in an utrafiltration (UF) system was investigated. The valence of the metal ion and the molar ratio of humic acid to metal ion strongly affected the permeation flux during ultrafiltration. It was found that the ionic strength, dissociation constant and operating pressure were not major factors affecting the separation performance of the ultrafiltration process. As well as indicating that a suitable ratio of humic acid to metal ion and valence of metal ion were the key factors in improving separation efficiency. The results also showed that separation of humic acid depended on the level of formation of humic acid-metal ion complexes, and on the degree of fouling on the membrane surface.

引用

页码：415 / 428

页数：14

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