#Brendo Arriesgado, yes what you have said is very true. But the reality is different, the concept has come in big apratments wherein they have their own seggregation and processing. The question lies in the acceptance of the seggregation in individual homes and lower strata of citizens who are least bothered to seggregate nad un detterently they throw the waste to the wims and fancies. Lack of awareness, facilities, and a mechanism of disposal of waste and its collection is a big question. Even if you seggregate and keep it the system of collection and further disposal is a problem. The waste generated has many dimensions like organic, reusable,inert, metals, dangerous goods, medical rejects, etc., etc., This is where the systems come into shape. Unfortunately the equipment that are availabe are too expensive to be affordable by developing countries and involves much much care and attention in the upkeep of the systems. Lack of engineering experience in handling these systems. Lack of experienced and willing lobour for such applications makes it more appealing to move in a better direction to face these challenges from time to time making systems more simpler and easy to handle the machines or equipments in their maintanence.