mac11irl,

The land fill site about 1 mile from my home has a company taking the methane gas and producing electricity from it.

Use google earth to have a look at Forfar and see the extent of the Sand & Gravel Quarries , these are from a few year back and these are being filled and reclaimed and there are various conservation schemes happening.

Lots more ground being opened up and planned to be opened in the coming years.

The main roads are tunelled underneath for accesss to new ground, paths / rights of way are re-routed in advance, and trees and fences are up for a few years before hand and even get high up you hardly see the extent of the excavations.

 

Six-figure cell expansion for high fashion Angus dump - The Courier.mhtml

PressReader.com - Connecting People Through News.mhtml

Landfill Pipework in Forfar.mhtml

 

 

Dunbar Landfill.

 

 

Edited 1 October, 20187 yr by Offski

I'll go check up some of the presentations. There were quite a few on the generation side, not my area of expertise or knowledge and wasn't paying a huge amount of attentions. 

11 hours ago, mac11irl said:

Use of Methane for the reforming reactor is a double environmental boost (potentially).

Given i (a long time ago in college) had to do a project once to design a landfill site (yeah, I know, but it is a part of environmental civ eng.. and better to design them properly..) , into which i took the extra hour of effort and included a fairly decent methane capture system under the cell capping layer. By average methane production during a cell decomposition,theres a lit of land fill gas that could be utilised for the Hydrogen cells. 

And not to mention if methane capture in the Agri sector could be made feasible. Cow farts are serious greenhouse gas contributor that is overlooked/ignored a lot, as cars etc are alot easier to tackle than farm animals..

 

Methane is a curious one from a greenhouse effect point of view. While its global warming potential is much higher than that of CO2, methane does not last long in the upper atmosphere. Current research suggests methane levels in the upper atmosphere are remaining constant, while CO2 is continuing to grow.

Agreed farming is a big nuisance. For dairying, some 90 % of the GHG emissions happen outside of the processing plants, back at the farm. Interestingly there is research being done on animal feeds to reduce methane emissions from  ruminants: seaweed is supposed to be good for this. I'm not sure how that would fly in Irish dairying though, when one of our major selling points is that our cattle are exclusively grass-fed.

 

I reckon the next 20-30 years are going to see us start mining landfill sites, both for recyclable materials, and for organic matter to feed digesters to produce combustible gas.

I have never understood why currently all plastics and and other materials that can not be recycled economically now are not going into land fill and land reclamation, 

into mines etc until the technology or the economy wants to recover whatever from that materials.

 

Everything in the world comes from under or on the surface before being processed or turned into something or burned other than what comes in from outer space.

Ecology from a dummy!

 

There are fundamentally two types of plastic: thermoplastics and thermosets. 

Thermoplastics are simply supercooled liquids with a bit of physical structure change, but you heat them up, melt them and reform them or rather recycle them. A thermoset is made through a chemical reaction process, so the plastic is a new chemical and physical material. Bakelite is a good example and has been around fir years. You can't simply melt and reshape it. This is also true if the majority of thin film plastics that often contain pvc, which is why they go to landfill. You could attempt to recycle these materials but the energy (and cost) makes it unpractical in the current climate. 

Edited 2 October, 20187 yr by stever750

10 hours ago, Offski said:

I have never understood why currently all plastics and and other materials that can not be recycled economically now are not going into land fill and land reclamation, 

into mines etc until the technology or the economy wants to recover whatever from that materials.

 

 

 

Tons of plastics are recycled every day at energy from waste plants.

4 minutes ago, stever750 said:

There are fundamentally two types of plastic: thermoplastics and thermosets. 

Thermoplastics are simply supercooled liquids with a bit of physical structure change, but you heat them up, melt them and reform them or rather recycle them. A thermoset is made through a chemical reaction process, so the plastic is a new chemical and physical material. Bakelite is a good example and has been around fir years. You can't simply melt and reshape it. This is also true if the majority of thin film plastics that often contain pvc, which is why they go to landfill. You could attempt to recycle these materials but the energy (and cost) makes it unpractical in the current climate. 

The bigger problem with modern materials is that a lot of them are composites: several different plastics layered together as a single sheet, or plastics laminated onto paper and card. Effective recycling of these often requires depolymerising the various plastics, distilling off the monomer fractions and then repolymerising them as new material. Thermosets can be broken down a lot of the time with the right chemicals, but again it's non-trivial.

As you say the biggest hurdle is still cost: it's cheaper to throw them in a hole in the ground and make new material. Until there's pressure (regulatory/monetary) brought to bear on product and packaging manufacturers, not much will change. IMO we're long past needing a WEEE type charge on packaging materials.

Hundreds of thousands of tonnes you would think are being recycled, the world is a big place.

 

The Investors and Companies like one that recycled Plastic Milk containers lost all their money because the oil price was so low that plastic manufacturers did not want their plastic that had been turned into pellets.

They were and still are wanting the changes requiring more used and recycled plastics to be required to be used.

 

Obviously lots is being recycled or harvested, including dust and dirt from road sides for precious metals.

 

 

 

Edited 2 October, 20187 yr by Offski

Honda showed this at Geneva last year.

 

http://www.honda.co.uk/cars/new/coming-soon/clarity-fuel-cell/overview.html

 

https://www.autoexpress.co.uk/honda/clarity-fcv/93321/new-honda-clarity-fcv-2017-review

 

https://www.autocar.co.uk/car-review/honda/clarity-fcv

 

https://www.carmagazine.co.uk/car-reviews/honda/honda-clarity-reviews-electric-vs-hybrid-vs-hydrogen-tech-test-2017/

 

https://automobiles.honda.com/clarity-fuel-cell

 

 

Edited 4 October, 20187 yr by vrskeith

What a crazy cockpit in this, but the car i like otherwise.

 

 

There  is a hydrogen  refueling station opened by Logan Energy @ Wallyford, near Musselburgh East Lothian and near the A1.

They say the only one between Aberdeen and Sheffield. 

https://www.insider.co.uk/news/tech-pioneer-logan-energy-open-21623703

 

http://loganenergy.com

 

Edited 4 March, 20206 yr by Roottootemblowinootsoot

Nice to get emails from BMW to let me know that a hydrogen car might be an option in the future.

Only issue will be affording one in 3 years if they are on the market.

Hopefully they won't call it the Hindenburg.

 

 

 

 

 

 

 

This is an idea for Car Sales people who some people think 'you know they are lying if their lips move.

 

 

 

 

Edited 20 August, 20205 yr by e-Roottoot

 

 

Todays story.

'Aberdeen's hydrogen busses taken off the road'.  Due to technical difficulties & until the issues could be "better understood".

http://bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-60266199

 

_________________________

This weeks news.___  Much more than busses, harbour side powering ships etc.

Oil & Gas giant BP partner Aberdeen's hydrogen plans.

http://bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-60250559

 

 

 

 

 

 

Edited 5 February, 20224 yr by roottoot

10 hours ago, roottoot said:

'Aberdeen's hydrogen busses taken off the road'

... due to issues with a mounting bracket.

2 hours ago, KenONeill said:

... due to issues with a mounting bracket.

 

that mugjt not even be specific to the hydrogen version of that model.. but its a nice splashy headline 🙄

Time will tell.

Likely not going to get built or bought in Aberdeen.

http://insider.co.uk/news/plans-hydrogen-car-factory-could-27519371

 

 

 

Would be nice... just need a tax incentive to make normal petrol stations stock hydrogen in the same way they stock autogas.

http://autoexpress.co.uk/news/360683/uk-hydrogen-fuel-stations-to-be-supplied-natural-gas-grid-new-trial

 

Hope someone's told them the gas terminal at Theddlethorpe got knocked down 3 years ago.