projects about

_concept of a waste system

Rana Cakir, Hilda Kalyoncu, Sina Schulz
supervised by Prof. Hans Krämer and Prof. Andreas Koller

mar 19 - jul 19

short description

keepin stands for the development of an understandable disposal system that tries to see waste as a raw material and to keep it in the economic cycle. It is aimed both at disposal companies and at the population, who reduce the effective processing of materials by incorrect separation. The keepin application enables the user to compare and understand his own waste quantities and costs. It offers assistance in sorting and can provide information about the processing of materials. Waste disposal is generally integrated more concretely into everyday life and achieves a deeper examination of one's own waste behaviour. The user can reflect his personal consumption and actively influence the values.

district island

The district islands set up in a 350m radius are used for the disposal of the collected waste. The user is given access through his own identification number using NFC. The containers are optimized with a built-in scale to display the individual waste behavior of the consumer.

waste ID

an identification number associated with the individual enables the data to be merged and tracked. During identification at the garbage can, the resulting data is sent to the user and to the central office for creating the invoice and displaying the amount of waste in the application.

data transfer

The server manages the data. This creates communication between the head office and the consumer. In the head office, the route planning of the disposal vehicles is planned and the filling levels are checked.


reduce, reuse and recycle these terms we have often heard. But how can you be guided by it if you have no idea how much you have consumed. The amount of discarded articles becomes clear to us only through the full garbage bags or bins. By capturing the mass thrown away, an accurate picture can be conveyed to the user. Within the application, quantity and costs are clearly available to the user. An icon system helps with sorting and indicates further processing steps. Underfloor systems are used as disposal points within city centres and are technologically expanded by an identification option, a scale and fill level sensors.


Waste charges are determined and paid on the basis of the own consumption. In the application, the user can see exactly how high the resulting waste charges will be and determine the amount through their own regulation. The garbage disposal is generally integrated more concretely into the everyday life and reaches a deeper argument with the own garbage behavior. The user can reflect his personal consumption and actively influence the values.

reduce reuse recycle