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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:

2012年04期

Page:

55-58

Research Field:

化学

Publishing date:

Info

Title:

Formation of Disinfection By-products in Drinking Water With Chlorine Dioxide and Chlorine

Author(s):

Zhu Mingxin¹; Sun Yimin²; Shen Lina²; Xu Yanhua¹; Fu Rongjin³

1.College of Environmental Engineering,Nangjing University of Technology,Nanjing 210009,China

Keywords:

chlorine;  chlorine dioxide;  trihalomethanes; preparation

PACS:

TU991.2

DOI:

-

Abstract:

Disinfecting effect of chlorine and chlorine dioxide has been compared by using simulating water and actual water samples． The result indicates that chlorine disinfection produces more chloroform than chlorine dioxide at the conditions of different humic acid concentration，disinfectants concentration and pH value． From a cost consideration， the pharmaceutical cost used by chlorine dioxide disinfection is higher than chlorine disinfection． The raw material cost of hydrogen peroxide method is lower，while the raw material cost of hydrochloric acid method and sodium chlorite method is higher． Respectively， the cost is 1． 4 ～ 2． 5 times and 4 ～ 5 times more than chlorine．

References:

［1］ Hamidina N，Yua Q J，Connellb D W． Human health risk assessment of chlorinated disinfection by-products in drinking water using a probabilistic approach［J］． Water Research， 2008， 42( 13) : 3 263-3 274．
［2］ Gopal K，Tripath S S，Bersillon J L， et al． Chlorination byproducts， their toxicodynamics and removal from drinking water［J］． Journal of Hazardous Materials， 2007， 140( 1 /2) : 1-6．
［3］ Frimmel F H， Jahnel J B． Haloforms and Related Compounds in Drinking Water［M］． Berlin: Springer， 2003: 1-19．
［4］ Gagnona G A，Randa J L，O’Leary K C， et al． Disinfectant efficacy of chlorite and chlorine dioxide in drinking water biofilms ［J］． Water Research， 2005， 39( 9) : 1 809-1 817．
［5］ Chang C Y，Hsieh Y H，Hsu S S， et al． The formation of disinfection by-products in water treated with chlorine dioxide［J］． Journal of Hazardous Materials， 2000，B79: 89-102．

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Last Update: 2013-03-11