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Soil-ed – nappy recycling system

Nappies-  Australians use 2.2 million, the UK 9 million and the USA 49 million per day and each nappy can takes between 450-500 years to fully decompose.   There has been the long running debate and intense studies of reusable vs. disposable nappies.   Results have found that using reusable nappies uses more water, energy and detergents than disposables, however disposable nappies contribute more solid waste to landfill.

Attempts to improve the friendliness of spoilt nappies include creating nappies made from semi-reusable materials to municipal initiatives of “recyling” disposable nappies, yet none eliminates the need of wastes going to landfills.  Even reusable diapers advocates will occasionally use disposable for the sake of convenience.

‘Soil-ed’ is the new product that diverts household smelly soiled nappies from landfills transforming it into elements that can be used with compost for the home garden.

The whole mechanism undergoes the process of Pyrolysis and compositing.  The pyrolysis process takes the long chain polymer molecules and breaks them into shorter chains through heat and pressure. The process is mimicking the natural process of the earth to break down carbon into oil which takes million of years in nature. The pyrolysis process does this with heat in a closed system in a short amount of time (7 days).

Once ‘Soil-ed’ is activated- it compacts, grinds, sanitizes and heat/dries the material in the nappy and then forms it into small usable shreds. The shreds are dry, odorless and can be used in conjunction with soil for the garden.

Successful composting is about creating the right balance of carbon to nitrogen, and given the fact that dirty disposable nappies are essentially a large bundle of carbon (paper product), containing a much smaller deposit of nitrogen (poop and pee).

If you would like more information about the process, research and design of this product, please contact me here.