Q&A

Dear Stephen, it is hard to say what is the best way to manage a river basin taking into consideration climate change. Most of the policies and management strategies need to be closely connected to the context of the specific country and river basin and there might not be universal soluti ...

Please find here attached is "Household Water Treatment and Safe Storage in emergencies" Manual by Red Cross..   

Many of the suggestions related to the query refer to chlorine. Before getting to use chlorine the following drawbacks of chlorine need to be assessed: 1. Firstly the demand for chlorine in the water will be very high. Therefore you need a stronger disinfectant than chlorine to disinfect the ...

It is very difficult to recommend any method without knowing the type and extent of contamination. However in the Himalays the  slow sand filter has been used with great success hence i recommendation it. check www.himalayanwater.org. they have used slow sand filter with great success in Ut ...

Solutions to water treatment in emergencies include among other ways "Rapid Sand Filters" These can use 200 liters drums located at appropriate places in the village. The filters if properly prepared can render the water free from suspended matter and turbidity. The filter forms a laye ...

Just following the earthquake in Nepal,  the Water, Engineering and Development Centre (WEDC) at Loughborough University, UK posted the following information for emergency workers: ****************** Please note these publications are free to download from the WEDC Knowledge Base ...

Dear Kiran, We have already been active to supply clean water to whole villages in Nepal. My local partner, Mr. Guneshwar Mahato should receive additional equipment hopefully next week already. The units are basing on solar powered water purification using UF filtration. That does a good job. In ...

We are. Working on a system which uses both uv sterilisation action and chlorination. Where power is not available, a foot pump/microgenerator combo is deployed to generate enough power to light and run the UV tube. Chlorination is provided to take care of possible residual contamination af ...

You may try contacting in the US, Water Missions International: They are based in Charleston, South Carolina, and were going to be helping. I hope they can assist you. John John B Cook, PE

To sanify water we use UV/Ozone generators. The machine should be dimensioned according to the volume of water to sanify. It works on water in pools or thanks as well as on running water in pipes. The combined action of UV and O3 destroy bacterias and have other positive effects without adding a ...