Combined humic substance and heavy metals coagulation, and membrane filtration under saline conditions

被引：28

作者：

Al-Abri, Mohammed ^{[2
]}

Dakheel, Akram ^{[3
]}

Tizaoui, Chedly ^{[1
]}

Hilal, Nidal ^{[1
]}

机构：

[1] Univ Nottingham, Ctr Clean Water Technol, Nottingham NG7 2RD, England

[2] Sultan Qaboos Univ, Petr & Chem Engn Dept, Al Khoud 123, Oman

[3] Al Baath Univ Hama, Dept Chem Engn, Hama, Syria

来源：

DESALINATION | 2010年 / 253卷 / 1-3期

关键词：

Membranes; Synthetic seawater; Humic substances; Heavy metals; Polyelectrolyte; PDADMAC; Coagulation; NATURAL ORGANIC-MATTER; ULTRAFILTRATION PROCESS; WATER-TREATMENT; IONIC-STRENGTH; RETENTION; REMOVAL; COMPLEXATION; ACID; POLYELECTROLYTES; SORPTION;

D O I：

10.1016/j.desal.2009.11.037

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Membrane retention was investigated with the aid of poly diallydimethylammonium chloride and copolymer of dimethyl aminoethyl acrylate polyelectrolyte coagulants The membranes used were P005F ultrafiltration (UF) and NF270 nanofiltration (NF) membranes and the studied conditions were salinity level. humic substances (HS) concentration, heavy metals concentration and polyelectrolytes type and concentration Results showed that with the aid of polyelectrolytes. HS retention reached a maximum point where further increase in polyelectrolytes degraded membrane retention This study showed also that at low polyelectrolyte concentration. salinity reduced membrane retention While at Optimum polyelectrolytes dose. membrane performance was not affected by salinity In addition. HS binding capacity for heavy metals was reduced considerably at high salinity levels. (C) 2009 Elsevier B.V All rights reserved

引用

页码：46 / 50

页数：5

共 40 条

[1]

Abu Qdais H, 2004, DESALINATION, V164, P105

[2]

Aiken G. R., HUMIC SUBSTANCES SOI

[3] Ultrafiltration of water containing natural organic matter: heavy metal removing in the hybrid complexation-ultrafiltration process [J].