If kitchen waste is decomposed in Aerobic condition it can be converted into good manure and decay will be orderless . The IDEA for developing such model is taken from you-tube and project was given to DBRT students . This special dust bin is very suitable for Metro , facing big problem of waste disposal . In plastic drum a PVC pipe is fixed at center for easy air circulation and drum fixed on steal frame in such a way that we can rotate it in 360 degree for mixing compost .It is JUST small IDEA but can be utilized on large scale to solve waste disposal  problem.