"Sink blender" is not allowed in Ottawa.
http://ottawa.ca/calendar/ottawa/citycouncil/ec/2005/04-26/ACS2005-PWS-UTL-0007.htm
Conclusion
It costs the City almost twice as much to process food waste at the Pickard Centre, than to have it transported to the landfill site. From a waste management point of view, there is currently no need for the use of food waste disposers in Ottawa. From environmental and operational perspectives, the long-term disadvantages of food waste disposers outweigh the advantages, in the City of Ottawa. Staff maintain that the prohibition on the use of food waste disposers in the City of Ottawa remains both fiscally and environmentally responsible.