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Design Invention Research
 · KathmanduNepal
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great initiative… like to contribute…
Personally i think its possible to implement Zero waste system…
All the Discarded stuffs can be Recycled one way or another…

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Kabadi Ramachandra
ceo, project coordination, business development (Project Leader)
 · BengaluruIndia
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My first step would be to dsign a system of approach to get solving the issue.
We waste the domestic waste in place through houses, municipal collection,dump yards,processing centers.
My start question is to have a robot at pre segregation???
To segregate the waste from metalic objects and waste.
To design a simple carry bag opener,as the most concern about waste disposal is that the waste is normally packed in a plastic carry bag and dump across the road or bins etc.,
This carry bag is not opened by the collector and when it comes to the dump yard is disposed as it is without opening.
The moment we open the contents all the organic material is out and the process of decay or conversion starts.
The next issue that comes to the mind is particle reduction. At the waste processing centers we find that the bag openers are absent. The first stage is the rotary drum screen 200 mm ++ i.e. the rotary screen will reject any object that is 200mm and above and drop down articles less than 200 mm.
At this stage instead if we have a bag opener before it is sent to the rotary screen and reduce the particlle size below 50 mm, then most of the waste becomes usable and maximum material will quality for either composting (making manure) or plastic waste available below 50 mm which becomes easier to handle and process at any stage.
During the process if we can adopt air segregation to lift the lighter plastic s through air flow most of the plastic can fly or be channelised to a collecting location for further processing making it more convenient to pass the organic matter to the next stage of operation.

With this seperation the screened material is stacked over a period of time usually ranging from 15days to 45 days for conversion to compost and manure.

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Brendo Arriesgado
Farmer/Engineer
 · Cebu CityPhilippines
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Pre-segregation at the household level is the best option if the homeowners will participate. No need of robotic approach which i think is a long and expensive shot.

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Brendo Arriesgado
Farmer/Engineer
 · Cebu CityPhilippines
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Household can be clustered and provided with three cubicles, each labeled according to the kind of waste. Collection of each cubicle depends on the necessity of the waste, like the food waste should be collected ahead than the solid waste. The rest can be collected later going to deferent area of the waste processing site.

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Kabadi Ramachandra
ceo, project coordination, business development (Project Leader)
 · BengaluruIndia
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#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.

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