Design of technologies
The Water: resource projects for the Subsaharan region
Author: Alessia Giuntini
The author decided to analyse the problem of the scarcity of water in Angola:
1.Harvesting ![clip_image002[6]](https://www.itknet.org/databank/wp-content/uploads/2009/03/clip-image0026.gif "clip_image002[6]")
2.Transport
3.Purification
![clip_image002[8]](https://www.itknet.org/databank/wp-content/uploads/2009/03/clip-image0028.gif "clip_image002[8]")
4.Desalination
![clip_image002[10]](https://www.itknet.org/databank/wp-content/uploads/2009/03/clip-image00210.gif "clip_image002[10]")
5.Traditional techniques for water management
![clip_image002[12]](https://www.itknet.org/databank/wp-content/uploads/2009/03/clip-image00212.gif "clip_image002[12]")
Proposed solutions:
WATER PURIFICATION
Batuchi
Mulher
Coquebra
TRANSPORT
Soza
WATER HARVESTING
Trabalhadora system:
a pile of stones (shaped as women bending down) is set next to a shallow well and covered with a malt made of clay and straw (waterproof) but leaving air inlets. From it, a small channel leads the water deriving from condensation to the well. It can then be extracted with buckets or small pumps run with solar panels.
Cuanza system:
Rain water flows directly from the roof to a shallow well. The well (maximum 3 mt deep) is provided with a purification system similar to the Imhof ditch: water runs through a filter made of a tight mesh net. When the filter is dirty the sediment is moved to a compost dip.
In the dry months stones can be placed on the net to capt the condensation that becomes water.
