Course 5: URBAN WATER DEMAND MANAGEMENT
Expected study load: 8 hours
This course may seem a bit off the topic: up until now, we have been talking about sanitation, and actually mainly about excreta management. Yet, when people are interested in providing a sustainable sanitation solution, they are typically also looking for sustainable water services. Moreover, a lack of proper water supply or a water shortage can be a very good reason to look for ecosan solutions, and then these WDM aspects come in very handy. The third link between WDM and ecosan is that ecosan is focused on closing the loop, reusing the nutrients in agriculture. For sustainable agriculture, a renewable water source is essential. And finally, preventing the production of extra wastewater or the loss of clean water fits of course perfectly within the concept of ecological and sustainable sanitation.
The slides look a bit different from what you are used to: they were made by my colleague Saroj Sharma. They have an icon on almost each slide, showing a loudspeaker. If you click on it, and you have your sound system switched on, you hear the voice of Saroj explaining the message on the slide in a little bit more detail. Saroj is a very well-known researcher in his area, and he takes great pleasure in the topic and in the interaction with the students. So, please so not hesitate to contact him in case you have any questions!
After completion of this unit, you will:
- be able to differentiate between water supply management and water demand management;
- be able to understand the definition, benefits and importance of urban water demand management.
- be able to understand different measures and approaches of urban water demand management;
- be familiar with different water saving devices that can be used in households and commercial buildings;
- be able to apply different water saving concepts and economic instruments in the design and planning of water supply systems.
- be familiar with the different options of urban water demand management measures, and will know how they have been successfully implemented in different parts of the world.
Recommended reading sources on Internet
- Environmental agency UK – Save water: www.environment-agency.gov.uk
- Conserve Water – Melbourne Water Australia: http://conservewater.melbournewater.com.au
- Water Efficiency Clearing House - AWWA: www.waterwiser.org
- USEPA – Water Use Efficiency Program: www.epa.gov/owm/water-efficiency/
- Environment Canada: www.ec.gc.ca/water/en/manage/effic/e_weff.htm
- Public Utilities Board: www.pub.gov.sg
- Water Demand Management Forum: www.idrc.ca/waterdemand/