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Descriptor in English: Water Chlorination
Descriptor in Spanish: Cloración del Agua
Descriptor in Portuguese: Cloração da Água
Descriptor in French: Chloration de l'eau
Entry term(s): Chlorination (Environmental Health)
Tree number(s): SP4.021.202.133.774
SP4.031.100.200.292.718.374.085
VS4.001.001.002.002.100
Scope note: The Portaria No. 2,914 of December 12, 2011 of the Ministry of Health, Brazil, establishes in its Article 34: "It is mandatory to maintain a minimum of 0.2 mg / L of free residual chlorine or 2 mg / L of residual chlorine or 0.2 mg / L of chlorine dioxide over the entire length of the water distribution system (reservoir and network) ". The purpose of using chlorine in water supply systems is to disinfect. However, due to its high oxidizing power, its application in the treatment processes has served diverse purposes such as taste and odor control, algae growth prevention, iron and manganese removal, color removal and control of the development of biofilms in pipes. It allows in a very simple way, to assure the innocuity of the water, from the production until the moment of the use, which results in great benefit, in small systems of rural, riverside, indigenous communities, as well as in big cities. (Adaptation and free translation from the original: Brasil. Manual de Cloração de Água em Pequenas Comunidades Utilizando o Clorador Simplificado Desenvolvido pela FUNASA, 2014. Available in: http://bit.ly/2Uu32gw)
Allowable Qualifiers: AE adverse effects
AN analysis
CL classification
EC economics
EH ethnology
ES ethics
HI history
LJ legislation & jurisprudence
MT methods
PC prevention & control
PL policies
SN statistics & numerical data
See also the descriptors: Chlorinators DeCS
Chlorine MeSH
Chlorine Demand DeCS
Halogenation MeSH
Trihalomethanes MeSH
Water Flavor DeCS
Water Odor DeCS
DeCS UI: 25053
Descriptor UI: DDCS025053
Water Chlorination - Preferred
Concept UI FD00058047
Scope note The Portaria No. 2,914 of December 12, 2011 of the Ministry of Health, Brazil, establishes in its Article 34: "It is mandatory to maintain a minimum of 0.2 mg / L of free residual chlorine or 2 mg / L of residual chlorine or 0.2 mg / L of chlorine dioxide over the entire length of the water distribution system (reservoir and network) ". The purpose of using chlorine in water supply systems is to disinfect. However, due to its high oxidizing power, its application in the treatment processes has served diverse purposes such as taste and odor control, algae growth prevention, iron and manganese removal, color removal and control of the development of biofilms in pipes. It allows in a very simple way, to assure the innocuity of the water, from the production until the moment of the use, which results in great benefit, in small systems of rural, riverside, indigenous communities, as well as in big cities. (Adaptation and free translation from the original: Brasil. Manual de Cloração de Água em Pequenas Comunidades Utilizando o Clorador Simplificado Desenvolvido pela FUNASA, 2014. Available in: http://bit.ly/2Uu32gw)
Preferred term Water Chlorination
Entry term(s) Chlorination (Environmental Health)



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