::zero waste::

Like the dorks that we are (meaning, we are not smart enough to be full-fledged geeks), architectdad and I love watching shows on the Discovery and Science channels. HBO series are the staple, and the science-related shows are the dessert.

Tonight, we watched an eye-opening show on the Science Channel called "Zero Waste." It is part of a series called "Eco-Tech." The program showcases the most cutting-edge innovations in waste and recycling technology. By following waste from the landfill to the lab, the show demonstrates why "waste management" is quickly becoming the hottest new trend in the scientific world.

For instance, did you know that 40% of all potable (drinkable) water is used for flushing our toilets? Also, did you know a cloth diaper service washes each diaper SEVEN times (using potable water) before it is returned to you? Currently in the U.S., treated sewage water is returned back into the rivers and streams. In many European, as well as Asian, countries, treated water is returned back into the drinking water supply. Scientists are now working on innovative ways to filter waste water, making it potable. One method is using a high-tech membranous fiber called "Z-weed" (by Zenon) to treat dirty water by filtering out harmful particles. Strands of Zweed are submerged into the dirty water. Each membrane contains tiny holes that are much smaller than bacteria and virus, including HIV. It allows water molecules to pass through, while filtering out 99% of cells, bacteria and viruses. If everyone could change his/her mindset about how dirty water is treated, then we have a chance of recycling what will be our most precious resource in the future.

Also, did you ever think about where all your old computers have gone to die? The staggering rate at which new gadgets and computers are created and revamped, has contributed to the increasing amount of heavy metals (such as mercury) in our natural environment. A company (the name escapes me) has been recycling used electronic equipment parts and using the byproducts for other uses. Each piece of equipment is smashed into little pieces, then sorted for useful materials. The metal-containing pieces are plucked out with magnets, while some other pieces have to be hand sorted.

Lastly, the coolest recycling method shown on the program is plasmagas technology. Solid waste is heated into liquid state, the liquid is then heated to a gaseous state. By passing the gases through a electrically charge plasmagas torch, your garbage is broken down into pure elements and electricity. Pure elements, such as hydrogen can then be harnessed to power a H-car in the future. According the scientists, ANYTHING is recyclable using this method. Even disposable diapers, which usually takes 500 years to degrade. At the moment, NYC spends $90 per ton on garbage management. If the city were to use plasmagas technology, it could sell the electricity the process generates and end up earning $15 per ton of garbage.

Our increasingly complex lifestyle will inevitably create more waste than ever. However, it is certainly encouraging to know that there are alternative disposal methods which will hopefully protect and conserve our natural environment.