PUMPING AND PURIFIED WATER

For my project I was looking for pumping water from the ground to use it in differents levels for cultivating plants and growing green area. I would collect the rain water but in one part the stucture pass above the sea. So, why not pumping this water and desalinate it.

I am looking how we can pumping water without using a pump !
How can we like trees to wick water up from the underground ?

There are designs provides by Stephen Salter using the tree process.

Some other designs on

http://www.asknature.org/product/1c404f66d0f4746f5f4810a2a92ecf1c#changeTab

//aude