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Thursday 6 January 2005

Immediate action to restore basic water supply facilities

The National Water Supply and Drainage Board (NWS&DB) has taken immediate action to restore basic water supply facilities to areas affected by the tsunami tidal waves, including the Ampara and Trincomalee Districts, Working Director NWS&DB Sunil Sarath Perera told the Daily News yestrday.

On the instructions of Urban Development and Water Supply Minister Dinesh Gunawardene arrangements have been made at the NWS&DB head office to offer expertise and provide chlorine for water purification to volunteer groups interested in cleaning up the wells in their areas. This service is available 24 hours of the day and those interested are requested to call the NWS&DB on Telephone No. 2623623.

In addition the officials of the NWS&DB along with the Central Environmental Authority have launched a work programme to clean up the wells in the affected areas. Cleaning up wells and purifying the water sources have been completed in the Galle and Ambalangoda areas while a group of people have been despatched to the Ampara and Trincomalee districts on the same mission.
Perera said that the NWS&DB has commenced a programme to restore pipe-borne water facilities to affected areas while the restoration of pipelines destroyed by tidal waves is being attended to.

Source: Daily News
3 Comments Post a Comment
Blogger Mike said :

I would like to point out a portable water filtration and purification system available from Noah Water System (which I have no affiliation). This portable system will produce 25,000 to 35,000 gallons a day of drinking water (25 gpm). This unit supplied to an above ground storage tank or maybe a doughboy swimming pool could be used to fill containers for local people. It is designed to create drinking water in exactly these poor conditions!

This is the unit "The Nomad"
http://www.noahwater.com/nomad.html

Thu Jan 06, 09:05:00 PM IST  
Anonymous Anonymous said :

The water could also be boiled. However, providing a heat source may be an issue. I think that the water purifying system is good. It might be too expensive.

Thu Jan 06, 10:20:00 PM IST  
Blogger Mike said :

I am new to these types of postings and communications and with that I apologize in advance if I have taken the original posters intended message off target. But I am interested in helping find solutions to these types of water quality issues.


The US EPA recommends “multibarrier treatment” for surface water treatment systems meaning filtration and disinfection methods should both be used. And when flooding occurs, even wells fall under the rules for surface water treatment. This filtration package has both. It uses staged filtration and a UV light for disinfection. This method only delivers clean water, one might also want to chlorinate the water if it is to be stored or transported in open containers.

These units would be the first step in restoring a drinking water system for a whole community. In fact may provide better water quality than they previously had.

I would first use them to fill temporary tanks for immediate distribution by hand.
If we assume 4 liters per day for individual consumption these units could supply enough water for 25,000 people. (Of course distribution would be the problem) I envision an above ground storage tank with multiple outlets for bottle filling around the perimeter. A series of these tanks could create a distribution center or hub.

Second I would use it to supply the existing storage tanks as the water delivery infrastructure is rebuilt. This step is essential in progressing to utilizing any existing piping distribution systems. Where progressive testing and sanitation will allow for delivery to surviving and newly rebuilt homes.
If we assume water usage at 1,000 liters per day per person for domestic use this unit would provide for about 1,000 people in a distribution system.

Fri Jan 07, 01:54:00 AM IST