Questions & Answers

Selection of questions and answers until October 2006. From November 2006 onwards, Q&As are published on the WASH Helpdesk Blog.

Water for kids

11 Aug 06

Selection of resources which might help you to teach your class about water.

Effects of first flush on rainwater quality
12 May 06

Our reading of the literature has found that First Flush (FF) systems contribute signifcantly to reducing the contaminents that are washed off the roof harvesting area. We are looking for research on FF systems and any evidence to demonstrate effectiveness.

Urine-diversion composting latrines
20 Apr 05

I come from Iran, and I would like to receive information on separation toilets.

EcoSan and anaerobic wastewater treatment options
19 Apr 05

For our project on basic urban services, I am looking for documents, fact sheets, experiences, or case studies on ecological sanitation and decentralised anaerobic waste water treatment options.

Aceh salinated wells
08 Mar 05

Wells in tsunami hit areas in Aceh have been polluted with salt water. We are planning to clean them and would like to receive confirmation if the proposed method of cleaning is appropriate.

Drinking water policy documents
28 Feb 05

Do you have drinking water policy documents for the developing world? I am working on such a document for Pakistan.

Solar disinfection (sodis)
28 Feb 05

I have heard that leaving contaminated water in a CLEAR plastic (PET) beveridge bottle for 24 hours in the tropical sun will render it safely drinkable. If this is true, would you please direct me to any research articles supporting this? I teach second and third year nursing students and am trying to make them aware of the concept of appropriate technology.