Spallation neutron sources are of interest for transmutation of nuclear waste. There are many project for nuclear waste transmutation and incineration. USA, Europe, Russia, Japan,.... In Recent years, China also started to investigate nuclear waste transmutation. like projects China Spallation Neutron Source, China Initiative Accelerator Driven System (CIADS) which are holded by Chinese Academy of Sciences.
by the way, you just search like " ADS project " on the google, you'll get more information.
The management of nuclear waste, particularly medium and high nuclear waste, depends of the country and the scope of their nuclear programs. In my book entitled "Nuclear Power; Current and Future Role in the World Electricity Generation"; Nova Science Publishers, 2012, you can find a brief description on the situation of the management of medium and high nuclear waste in more than 60 countries located in all regions, including those countries with nuclear power plants in operation.