Showing posts with label environment. Show all posts
Showing posts with label environment. Show all posts

Wednesday, 19 June 2013

Recycling nightmares

A lack of consultation with recyclers
makes this new bottle an
environmental problem
There's been a lot of media hype generated by Fonterra for their new milk bottle packaging.  From their advertising it seems that all milk other than the Anchor brand is now spoiled because it's been exposed to light.

A cartel like Fonterra clearly has a lot of clout and they've executed a convincing media blitz to make sure that we know how green they are.  Trouble is this new packaging is turning out to be an environmental disaster.

Just like Novapay they've gone live without bothering to do the user acceptance testing.  Unlike the poor teachers who ended up with no money in the bank, the Anchor debacle isn't bankrupting individuals but it is causing some real headaches for recyclers and it's resulting in some lost revenue.

Recycling equipment grades plastic by shining a light on the incoming waste.  Apparently it's very accurate at identifying all the different sorts of plastic but the new Anchor milk bottles are being mistaken for low grade plastics and are being mis-sorted into the mixed grade pile.  The machines simply aren't callibrated to recognise this new material because no-one told them that this was coming. There's no real demand for mixed plastics and they command a very low resale price.  Some recyclers aren't even bothering to try on-selling this mixed grade stuff and are sending it straight to the landfill.

So for all of Fonterra's claims that the packaging is environmentally friendly it's proving to be anything but.  Fair's fair, Fonterra aren't the only manufacturer that has launched high-tech but poorly tested packaging into the marketplace but they are the most high profile.

It's not a criticism of the packaging itself - no-one disputes that it is high grade plastic that should be recyclable.

However, when you skip the crucial acceptance testing that ensures all parts of the supply chain are engaged and ready for your product, this is the mess that happens.

When the culprit is one of the biggest milk brands in the country that adds up to a very big pile of rubbish heading unnecessarily to the landfill.

Recyclers see red over 'green' bottles (Stuff)

Friday, 26 April 2013

Plasma Gasification

Turning rubbish into fuel

Not all technology is exciting or sexy but some of the duller bits are impressive all the same.  One such area is the plasma gasification process for turning rubbish into fuel.

The plasma gasification cycle
Traditional incineration of garbage does not find favour with environmentalists and our ever increasing demand for landfill sites is equally unpopular and ultimately unsustainable.

Plasma gasification uses a 6000 degree plasma arc operating in an oxygen-starved closed environment to transform materials to their basic molecular state.  In the process synthetic gas (syngas) is produced and this can be harvested for generating power.  The tremendous heat levels mean that all metals are liquified and can be collected from the base of the reactor.

Not clear on how this works?  Read this for a good, plain English description of the process of plasma gasification.

Expect to see a lot more interest in this technology as the world searches for solutions to our growing waste and fuel concerns.

Links to plasma gasification info

What is plasma gasification?
6000 degrees of plasma energy


How plasma converters work

Videos demonstrating the process (YouTube)

Clean renewable fuel

Plasma gasification finds favour with environmentalists

Advanced Plasma Power website

Advanced Plasma Power Ltd