I'm Josh Hill, a current Civil Engineering student at Stevens Institute of Technology. I want to show you all some ideas to consider when working on your Future City:
Let's talk about one of the less talked about parts of waste management, energy recovery. Just because some waste can't be reused or recycled doesn't mean it has to end up in a landfill. Some of that waste can be successfully burnt to power your city. An excellent example of this process can be seen in Sweden. In fact, Sweden is so successful in energy recovery that they are able to import the waste of other countries to use as fuel.
This method does have drawbacks, such as the carbon dioxide and other polutants that are released into the air. It's up to your team to way the consquences and decide is Sweden's example of energy recovery is something you want to use in your city.
Check out the video to learn more and look at other existing waste management systems to see what might work in your Future City!
I'll make sure to point out anything interesting I find to give you inspiration for your projects!