My main ideas were to provide advices to the user so he will learn how to sort waste in a better way.
Homepage :
A week's schedule for the different bin.
Daily advice to learn how to reduce or re-use waste.
Daily quiz with 3 possible answers to help the user to memorize which stuff goes in which bin.
The user can look for a waste by scanning it with it's camera, or by using the research.
Each waste has a note card with statistics on it's environmental impact, tips on how to re-use it.