Effect of KMnO4 treatment of granular activated carbon on the removal of natural organic matter

被引：8

作者：

Rathnayake, Dileepa ^{[1
]}

Korotta-Gamage, Shashika Madushi ^{[1
]}

Kastl, George ^{[1
]}

Sathasivan, Arumugam ^{[1
]}

机构：

[1] Western Sydney Univ, Sch Comp Engn & Math, Kingswood, NSW 2747, Australia

来源：

DESALINATION AND WATER TREATMENT | 2017年 / 71卷

关键词：

Natural organic matter; Granular activated carbon; Dissolved organic carbon; Potassium permanganate; POTASSIUM-PERMANGANATE; SEASONAL-VARIATIONS; AQUEOUS-SOLUTIONS; ADSORPTION; WATER; OXIDATION; IMPACT; NOM; DECOMPOSITION; PREOXIDATION;

D O I：

10.5004/dwt.2017.20570

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In drinking water the amount of natural organic matter (NOM), measured as dissolved organic carbon (DOC), should be maintained at a low enough concentration to increase the stability of chlorine and minimise the disinfection by-products. This work focuses on the methods to enhance the performance of granular activated carbon (GAC) by modifying the surface of GAC by pre-treatment with potassium permanganate (KMnO4) at two loading (0.1 and 1% w/w KMnO4/GAC). The batch DOC adsorption experimental results at two solid to liquid ratios (5 g GAC/L; 0.5 g GAC/L) indicated that KMnO4 treatment did neither improve NOM removal nor change the NOM composition in the treated water. There was also no evidence in change of GAC pore structure due to KMnO4 pre-treatment. Therefore, there is no significant benefit of treating GAC with KMnO4 for physical removal of NOM under the tested conditions.

引用

页码：201 / 206

页数：6

共 36 条

[1]

Brady R., 2012, WATER TREATMENT PLAN

[2]

Bruchet A., 2004, REV ENV SCI BIOTECHN, V3, P33, DOI [10.1023/B:RESB.0000040011.81065.25, DOI 10.1023/B:RESB.0000040011.81065.25]

[3] The mechanisms of potassium permanganate on algae removal [J].

Chen, JJ ;

Yeh, HH .

WATER RESEARCH, 2005, 39 (18) :4420-4428

[4] Adsorption of fluoride in aqueous solutions using KMnO4-modified activated carbon derived from steam pyrolysis of rice straw [J].

Hot Lab. Centre, Atomic Energy Authority, Cairo, Egypt .

J. Hazard. Mater., 2007, 1-2 (633-643) :633-643

[5] Impacts of climate change on surface water quality in relation to drinking water production [J].

Delpla, I. ;

Jung, A. -V. ;

Baures, E. ;

Clement, M. ;

Thomas, O. .

ENVIRONMENT INTERNATIONAL, 2009, 35 (08) :1225-1233

[6]

Edzwald JK., 2010, WATER QUALITY TREATM

[7]

Hazen T., 1992, DISINFECTION ALTERNA

[8]

Herberg T, 1998, WATER SCI TECHNOL, V37, P121

[9] Incidence of pretreatment by potassium permanganate on hazardous laboratory wastes photodegradability [J].

Herrera-Melián, JA ;

Rendón, ET ;

Rodríguez, JMD ;

Suárez, AV ;

Do Campo, CV ;

Peña, JP ;

Mesa, JA .

WATER RESEARCH, 2000, 34 (16) :3967-3976

[10] Kinetics and mechanism of oxidation of tetrachloroethylene with permanganate [J].

Huang, KC ;

Hoag, GE ;

Chheda, P ;

Woody, BA ;

Dobbs, GM .

CHEMOSPHERE, 2002, 46 (06) :815-825

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