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12

First of all, it sounds like there might be some confusion regarding the claim. As I read it, the claim is not that steel is inherently better than plastic. It's not an apples-to-apples comparison. The claim is that one reusable steel bottle is better than continually buying many disposable plastic bottles. Certainly, one steel bottle has a much bigger ...


8

Good question, the german recycling system can sometimes be a little overwhelming. First, don't mix up "Pfand" and "Recycling". "Pfand"-bottles will go back to the manufacturer, be cleaned and reused. None of your pictures belongs to the "Pfand" system. But all three can be recycled. The glass-bottle should be the easiest: search for the nearest "Glas-...


5

Stuffing plastic bottles with other plastic items makes them unsuitable for recycling. In recycling processing centres, plastic items are sorted by type prior to reprocessing into raw material. By filling the bottles with many different types of plastic (PET, HDPE, PVC, LDPE, PP, etc) it makes the sorting task much more difficult/impossible/uneconomic. ...


4

Just to expand on Werner's excellent response as well as your original linked article: Pfand eligible bottles will usually have some sort of designation on the bottle itself; often times there will be an icon like this and / or the term "Pfandflasche" on the label. Most grocery stores will have an automated kiosk like this to return them and you will receive ...


4

Challenges: Recycling the cartons. Even Milk doesn't do that. "Milk cartons are heavily waxed. This makes them difficult if not impossible to recycle." Correction: Milk cartons are a layer of low density polyethylene on both faces of cardboard. Overcoming the costs of two way transport for the carton containers. Milk is shipped in cartons which in turn ...


3

There is a nice and quite detailed tutorial on how to do this on Instructables. They are solving the problem of holding the raft together by using garden mesh. If you have a garden, or know somebody who has a garden, it shouldn't be hard to get your hands on some of this and I'm pretty sure you can use it again as garden mesh once you don't use your raft ...


2

The boat made from plastic bottles is a nonsense. One day it falls apart and makes more pollution to the environment, than the recycled bottle. If the boat is motorized, then this could be the source of the pollution too, as the bottle shapes usually are not optimized for hydrodynamics processes and the boat is usually very slow and consumes much more fuel ...


2

One possible problem: plastic is usually photo-degradable. It doesn't matter when you keep a plastic bottle in your house, but if your raft stays 12 hours/day in plain sunshine, it may leak within months. I had similar experience: the cheap plastic hose I bought lasted only 2 months under Indonesian sun.


2

Plastic bags can be cut into strips and made into rope of various thicknesses and durability. You could then tie the bottles together. http://www.instructables.com/id/Useful-Rope-or-Cord-from-Plastic-Shopping-Bags/ http://www.youtube.com/watch?v=6KiZXRK5h44


2

Most cities do not want you to put both the plastic bottle and its plastic cap together in the recycling bin. One reason for this is the two items are usually made of different types of plastic material, so they cannot be recycled together. Find out if there is any recycling of plastic caps only in your area. Unfortunately, even after decades of plastic ...


1

There are a lot of factors and different ways to view environmental impact and it depends on your priorities. If you prioritize energy used to produce, assuming Nate's citation is correct, the steel is only good when the energy required to produce (mine, refine, smelt, forge, transport, etc.) is less than the energy used to produce an equivalent amount of ...


1

I was on this quest myself a year ago and found articles like this made with 55-gallon barrels like the ones used for rain collection. I still want to do this - good luck with your quest!


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