TY - JOUR
T1 - Increasing acceptance of chlorination for household water treatment
T2 - Observations from Bangladesh
AU - Flanagan, Sara V.
AU - Meng, Xiaoguang
AU - Zheng, Yan
PY - 2013/4
Y1 - 2013/4
N2 - Point-of-use water treatment, especially chlorination, is an effective intervention to reduce diarrhoea, a leading cause of death for children under five. Yet success in chlorination uptake has been limited. One obstacle is objection to treated water's taste/odour. Protective chlorine residuals that are not offensive to users require accurate dosing - a challenge in practice. Further, taste sensitivity may be different for populations never exposed to chlorinated water. Here, household chlorination trials in Bangladesh similarly revealed dissatisfaction with treated water due to taste and odour, although attempts to quantify chlorine sensitivity disputed the dissatisfaction at lower residuals. A granular activated carbon (GAC) filter fitted to the spigot of a covered tank removed the remaining chlorine residual prior to drinking and increased user satisfaction. Such a filter removes taste as a barrier and allows over-dosing contaminated water to ensure disinfection, with implications for areas with high source water variability and for emergency situations.
AB - Point-of-use water treatment, especially chlorination, is an effective intervention to reduce diarrhoea, a leading cause of death for children under five. Yet success in chlorination uptake has been limited. One obstacle is objection to treated water's taste/odour. Protective chlorine residuals that are not offensive to users require accurate dosing - a challenge in practice. Further, taste sensitivity may be different for populations never exposed to chlorinated water. Here, household chlorination trials in Bangladesh similarly revealed dissatisfaction with treated water due to taste and odour, although attempts to quantify chlorine sensitivity disputed the dissatisfaction at lower residuals. A granular activated carbon (GAC) filter fitted to the spigot of a covered tank removed the remaining chlorine residual prior to drinking and increased user satisfaction. Such a filter removes taste as a barrier and allows over-dosing contaminated water to ensure disinfection, with implications for areas with high source water variability and for emergency situations.
KW - Bangladesh
KW - Chlorination
KW - Disinfection
KW - Granular activated carbon
KW - Household water treatment
KW - Point-of-use
KW - Water-borne infectious disease
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U2 - 10.3362/1756-3488.2013.014
DO - 10.3362/1756-3488.2013.014
M3 - Article
AN - SCOPUS:84878344046
SN - 0262-8104
VL - 32
SP - 125
EP - 134
JO - Waterlines
JF - Waterlines
IS - 2
ER -