Sign up for an Award
Participate with your entry in one of our professional or student awards.
Sign up for an awardLearn more:
Unsupported browser
You are using an outdated browser. Please upgrade your browser to improve your experience.
Unsupported browser
You are using an outdated browser. Please upgrade your browser to improve your experience.
This is a trash can which can use to recycle the water.
The trash can will check whether there is any water in
the bottle when people drop the bottle into the trash can.
If there is water in the bottle, the bottle cannot be dropped
into the trash can. Therefore, the water of the bottle must
be pour into the recycling box beside the trash can. The
water can be gathered and reused.
Guangzhou College of South China
University of Technology
Guangzhou, China
Qiang Huang,
Guangzhou College of South China
