Effect of precipitation and complexation on nanofiltration of strontium-containing nuclear wastewater

被引：49

作者：

Hwang, ED

Lee, KW

Choo, KH

Choi, SJ ^{[1
]}

Kim, SH

Yoon, CH

Lee, CH

机构：

[1] Daegu Univ, Dept Architectural Civil & Environm Engn, Gyongsan 712714, Gyeongbuk, South Korea

[2] Kyungpook Natl Univ, Dept Environm Engn, Buk Gu, Taegu 702701, South Korea

[3] Seoul Natl Univ, Sch Chem Engn, Seoul 151742, South Korea

[4] Kyungnam Univ, Dept Environm Engn, Masan 631701, Gyeongnam, South Korea

来源：

DESALINATION | 2002年 / 147卷 / 1-3期

关键词：

nanofiltration; complexation; precipitation; strontium removal; fouling;

D O I：

10.1016/S0011-9164(02)00554-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The performance of nanofiltration (NF) with the addition of poly (acrylic acid) (PAA) for treatment of strontium-bearing nuclear wastewater was investigated using different NF membranes at various pH levels and PAA/Sr ratios. Greater Sr removal at elevated pH was attributed to the formation of SrCO3(s) due to the dissolution of atmospheric CO2. A substantial improvement in Sr removal was achieved with the addition of PAA that can make complexes with strontium ions and then be rejected by NF membranes. However, a rapid decrease in feed solution pH aggravated the fouling of a NF membrane, possibly because of the formation and the sorption of associated forms of PAA at the membrane surface.

引用

页码：289 / 294

页数：6

共 7 条

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