If your walls are constructed with lath and plaster construction, you can't necessarily recycle them, but the wood lath could be recycled.
If your walls are gypsum wall board you can certainly recycle them.
- Connecticut has information on recycling wallboard here.
- You will still need to pay someone to haul it and take it to the proper recycling center.
For more information:
Read "Is there such a thing as green drywall? If so, what alternatives to conventional drywall do you recommend?" a Q&A answered by Mary Cordaro.