Removal of Sulphides from Wastewater

We're looking ​for ways of ​cleaning up ​acid mine ​drainage, ​one of the issues we are facing is that our process produces sulphides that need to be removed downstream.

Does anyone know of a relatively cheap/simple way of removing sulphides from water?

We don't necessarily want to add expensive oxidants and the chemistry seems a bit complicated as the sulphides seem to revert to sulphate under certain conditions which would then mean we need to remove the sulphates too.