Does someone know about a perfect or really good real example about integral management of rainwater harvesting to improve the resilience of a big city?
I mean, a conceptual process of management with governance, legal framework, regulations... and much more....
Rainwater harvesting through roof top for ground water recharge especially in alluvial area can reduce the problem to large extent. Technology is available. It is safe and economical. But for runoff from the road side quality is the constraint. But it can be reduce by maintaining grass along the road.
This concept offers a new source of water that is a revenue source for utilities, stormwater management BMP and allows those that cannot afford the upfront costs of a rainwater harvesting system the ability to have one.
Probably not relevant but the use of attenuation tank systems to alleviate any potential flood damage to watercourses is well documented and regulated in England. But I think you're thinking more of recycling as opposed to environmental protection?
I have completed many projects on integrated rain water management in urban and rural areas. After knowing actual situation, I can suggest a perfect solution.
You need first survey in your area during monsoon which is really gave idea of place where actual water deposits and water trails thats very helpful in your case.if your done for your home or back yard then you have good ises about it on Google. Other queries content me on my mail-bhandeibhavin@gmai.com