Hello Giacomo, there are a ...

Hello Giacomo, there are a number if international and locally based organisations undertaking exactly this, NGO's, government entities as well as private companies.

So it really is up to you on what and how you need to approach the subject, as you can appreciate it is quite diverse.

The Water Research Commission in South Africa may be a useful reference to give you some indication of what is available and how it can be implemented, our WRC is a state owned entity that undertakes a wide range of research on water related matters. Reference http://www.wrc.org.za

If you need further support you are welcome to message or email me

Regards

Gary