But the laterite system isn't viable yet, so why mention it in the context of low-cost arsenic reduction? Ramping it up to community sized processes isn't necessarily going to be cheap or result in an inexpensive process in the end.

And...

Using either artificial UV light or natural sunlight, the process can achieve the World Health Organisation?s recommended limit of 10 parts per billion of arsenic in water. The technology was successfully demonstrated for the US Environmental Protection Agency.


I work with computers every day. I know about demos. I'd be more interested in seeing where it has actually been deployed and the costs associated with it.