Water, Sanitation and Hygiene Interventions: Household Water Treatment and Safe Storage to Reduce the Burden of Diarrhoeal Disease in Developing Countries

2015 ◽  
pp. 124-133
Author(s):  
Daniele Lantagne
Keyword(s):  
Developing Countries ◽  
Water Treatment ◽  
Diarrhoeal Disease ◽  
Household Water Treatment ◽  
Safe Storage ◽  
Sanitation And Hygiene ◽  
Household Water

scholarly journals Turbidity and chlorine demand reduction using locally available physical water clarification mechanisms before household chlorination in developing countries

2009 ◽  
Vol 7 (3) ◽  
pp. 497-506 ◽  
Author(s):  
Nadine Kotlarz ◽  
Daniele Lantagne ◽  
Kelsey Preston ◽  
Kristen Jellison
Keyword(s):  
Developing Countries ◽  
Disease Incidence ◽  
Water System ◽  
Diarrhoeal Disease ◽  
Waterborne Diseases ◽  
Sand Filtration ◽  
Household Water Treatment ◽  
Turbid Waters ◽  
Household Water ◽  
Chlorine Demand

Over 1.1 billion people in the world lack access to improved drinking water. Diarrhoeal and other waterborne diseases cause an estimated 1.9 million deaths per year. The Safe Water System (SWS) is a proven household water treatment intervention that reduces diarrhoeal disease incidence among users in developing countries. Turbid waters pose a particular challenge to implementation of SWS programmes; although research shows that a 3.75 mg l−1 sodium hypochlorite dose effectively treats turbid waters, users sometimes object to the strong chlorine taste and prefer to drink water that is more aesthetically pleasing. This study investigated the efficacy of three locally available water clarification mechanisms—cloth filtration, settling/decanting and sand filtration—to reduce turbidity and chlorine demand at turbidities of 10, 30, 70, 100 and 300 NTU. All three mechanisms reduced turbidity (cloth filtration −1–60%, settling/decanting 78–88% and sand filtration 57–99%). Sand filtration (P=0.002) and settling/decanting (P=0.004), but not cloth filtration (P=0.30), were effective at reducing chlorine demand compared with controls. Recommendations for implementing organizations based on these results are discussed.

Hypochlorite Solution Expiration and Stability in Household Water Treatment in Developing Countries

2011 ◽  
Vol 137 (2) ◽  
pp. 131-136 ◽  
Author(s):  
D. Lantagne ◽  
K. Preston ◽  
E. Blanton ◽  
N. Kotlarz ◽  
H. Gezagehn ◽  
...  
Keyword(s):  
Developing Countries ◽  
Water Treatment ◽  
Household Water Treatment ◽  
Hypochlorite Solution ◽  
Household Water

scholarly journals Assessment of household water treatment and storage practices

2018 ◽  
Vol 5 (3) ◽  
pp. 1060 ◽  
Author(s):  
Subrat K. Pradhan ◽  
Upasana Sinha ◽  
Durga M. Satapathy ◽  
Amit P. Swain ◽  
Rudra P. Mishra
Keyword(s):  
Water Treatment ◽  
Poverty Reduction ◽  
Descriptive Analysis ◽  
Cross Sectional Study ◽  
Waterborne Diseases ◽  
Cross Sectional ◽  
Household Water Treatment ◽  
Safe Storage ◽  
Hand Pump ◽  
Household Water

Background: Maintenance of drinking-water quality is a pillar of primary prevention and continues to be the foundation for the prevention and control of waterborne diseases. Improved water supply and sanitation, and better management of water resources, can boost countries’ economic growth and can contribute greatly to poverty reduction. The objective of the study was to assess household water treatment and safe storage (HWTS) practice.Methods: A cross-sectional study was conducted for a period of 2 months. Total of 250 household were surveyed under the UHTC. Data was collected using WHO toolkit for monitoring and evaluating household water treatment and safe storage programme. Descriptive analysis was done.Results: Majority had piped connection (32%) followed by public standpipe (31.2%), hand pump (27.6%) as source of water. 60% had knowledge about boiling followed by chlorination 27%, membrane filters 22.4%. Majority i.e. 63% of the participants had thought boiling as the best method for disinfection of drinking water.Conclusions: Majority had piped connection, Maximum kept water container clean and covered. Only one fourth of the total household surveyed suffered from diarrhea in last 6 months.

scholarly journals Antibacterial and antiviral effectiveness of two household water treatment devices that use monobrominated hydantoinylated polystyrene

2016 ◽  
Vol 14 (6) ◽  
pp. 950-960
Author(s):  
Kyle S. Enger ◽  
Emaly S. Leak ◽  
Tiong Gim Aw ◽  
Angela D. Coulliette ◽  
Joan B. Rose
Keyword(s):  
Developing Countries ◽  
Water Treatment ◽  
Diarrheal Disease ◽  
Human Adenovirus ◽  
Murine Norovirus ◽  
Household Water Treatment ◽  
Bacteriophage Ms2 ◽  
Household Water ◽  
Before And After ◽  
Antimicrobial Effectiveness

Many different household water treatment (HWT) methods have been researched and promoted to mitigate the serious burden of diarrheal disease in developing countries. However, HWT methods using bromine have not been extensively evaluated. Two gravity-fed HWT devices (AquaSure™ and Waterbird™) were used to test the antimicrobial effectiveness of HaloPure® Br beads (monobrominated hydantoinylated polystyrene) that deliver bromine. As water flows over the beads, reactive bromine species are eluted, which inactivate microorganisms. To assess log10 reduction values (LRVs) for Vibrio cholerae, Salmonella enterica Typhimurium, bacteriophage MS2, human adenovirus 2 (HAdV2), and murine norovirus (MN), these organisms were added to potable water and sewage-contaminated water. These organisms were quantified before and after water treatment by the HWT devices. On average, 6 LRVs against Vibrio were attained, as well as 5 LRVs against Salmonella, 4 LRVs against MS2, 5 LRVs against HAdV2, and 3 LRVs against MN. Disinfection was similar regardless of whether sewage was present. Polymer beads delivering bromine to drinking water are a potentially effective and useful component of HWT methods in developing countries.

Sign in / Sign up

Export Citation Format

Share Document