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SANIVAT is a Danida-funded project that supports research in health impacts of water, sanitation and hygiene interventions and how people perceive hygiene, health risks and different types of hygiene promotion. The project also aims to build capacity in relevant national institutions to conduct risk assessment and perception studies on human health and hygiene aspects relating to water supply, sanitation and hygiene promotion.
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Implementation of an intervention study to improve household water quality
( 23/07/2010 )
From middle of July 2010, a study to improve the quality of household drinking water in Lao Cai province has been started. The study aims to test a simple and low-cost drinking water treatment method at the household level to reduce E. coli contamination. It is actually a following step after the baseline research which was done to collect risk factors for the faecal contamination and E. coli contamination level of household drinking water conducted by NIOEH last year.  Two types of interventions will be implemented in this study:

i) The chlorinated point-of-use raw drinking water treatment (using Aquatabs – disinfective tablets) in combination with provision of 20-L small neck bottles with tap will be applied in 50 intervened households. After the tablet is diluted 30 min in 20L safe storage container, the chlorinated drinking water can be drunk. The water can be stored up to maximum 48h according to the manufacturer.
and
ii) Boiling raw drinking water in combination with provision of the small neck bottles in another 50 comparable households. Water will be boiled by householders by their own 5 L-kettle or other vessels as normal and then the water is kept in the kettle until it cools before the householders pour the water into the 20 L safe water storage container supplied by SANIVAT. Householders will refill the storage container with new cool boiled water when the container is empty.

The concentration of E.coli in these two types of treated drinking water will be assessed and monitored in every two weeks in all study households in 6 months (3 months in rainy seasons and 3 months dry seasons of 2010). In addition, the concentration of residual chlorine in treated drinking water will be also determined under laboratory and field conditions.

This study will be responsible by Lao Cai Center for Preventive Medicine (CPM) under the supervision of SANIVAT senior researchers from the National Institute of Hygiene and Epidemiology (Dr. Vuong Tuan Anh) and the National Institute of Environmental and Occupational Health (Dr. Nguyen Thai Hiep Nhi). All the lab activities will be implemented at CPM. This study is part of the outcomes of SANIVAT’s work package 6, at the same time its results will be shared in the Master thesis of Mr. Nguyen Dang Tuan (NIHE), who is taking the MSc course at Yang Ming (Taiwan) and the Master thesis of Mr. Trinh Hung Lam (CPM), who is taking a national Master degree at Thai Nguyen Medical College.
Other news
PhD student Bui Thi Mai Huong visiting Denmark
Mid-term workshop in Lao Cai province
Final stool sampling in helminth study
SANIVAT presentations in WHO Workshop on Sharing Lessons Learnt and Experiences in Implementation of Integrated Water, Sanitation and Hygiene in Schools and Healthcare Stations
First SANIVAT publication – a scientific paper by Thilde Rheinlander on the Social Science and Medicine
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