Energy from seaweed

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Energy from seaweed
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Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Sun Mar 15, 15 10:04 am Post subject: Energy from seaweed
Seaweed problem could provide biofuel solution

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Sun Mar 15, 15 10:53 am Post subject:
Did it really take them this long to think of that?

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Sun Mar 15, 15 12:05 pm Post subject:
I have always been a follower of science & am truly glad we don't still live in the world of necromancy & voodoo but if scientists have one fault it's making a simple solution more complicated to justify a bigger research budget.

wellington womble

Joined: 08 Nov 2004
Posts: 15051
Location: East Midlands

Posted: Mon Mar 16, 15 3:40 am Post subject:
Wouldn't it be too soggy to burn?

Shane

Joined: 31 Oct 2005
Posts: 3467
Location: Doha. Is hot.

Posted: Mon Mar 16, 15 4:30 am Post subject:
The stuff that blows in in huge quantities all over Worthing beach every summer just in time to release its pong for the world bowling championships gets so dry and crispy that it cuts your feet to ribbons. The stuff on the surface, at least. The three feet below the crust has the consistency (and smell) of rotting slurry, which is always pleasant when you find yourself up to your knees in it.

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Mon Mar 16, 15 7:14 am Post subject:

wellington womble wrote:

Wouldn't it be too soggy to burn?

You don't have to burn it to extract energy, at least not initially.
Anaerobic digestion to extract methane would be my choice although the high salt content might affect the efficiency on the bacteria.

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Mon Mar 16, 15 7:31 am Post subject:

Tavascarow wrote:

Anaerobic digestion to extract methane would be my choice although the high salt content might affect the efficiency on the bacteria.

I'd be very surprised if there are no salt tolerant anaerobic bacteria.

Falstaff

Joined: 27 May 2009
Posts: 1014

Posted: Mon Mar 16, 15 7:55 am Post subject:

wellington womble wrote:

Wouldn't it be too soggy to burn?

Don't you go trying to introduce LEVITY into such a serious subject !

Nick

Joined: 02 Nov 2004
Posts: 34535
Location: Hereford

Posted: Mon Mar 16, 15 7:55 am Post subject:

Hairyloon wrote:

Tavascarow wrote:

Anaerobic digestion to extract methane would be my choice although the high salt content might affect the efficiency on the bacteria.

I'd be very surprised if there are no salt tolerant anaerobic bacteria.

Something sounds like it's eating the three feet of stuff Shane wades in on his way to his Crown Green jamboree.

Mistress Rose

Joined: 21 Jul 2011
Posts: 15578

Posted: Mon Mar 16, 15 8:27 am Post subject:

Apart from upsetting the wildlife that has set up home in their seaweed farms, that looks like a good idea. As with other biomass waste, the fun comes in trying to extract the energy or turning it into oil. I wonder if we ought to be more concerned with using it in other ways to make power rather than being blinkered by turning everything into oil. Yes, we do need something like that to make chemicals, but we don't need to go through that stage for energy production.

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4563
Location: Lampeter

Posted: Mon Mar 16, 15 9:29 am Post subject:
As long as they leave the Laverbread variety alone,all is well,lol.

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Mon Mar 16, 15 12:59 pm Post subject:

Mistress Rose wrote:

Apart from upsetting the wildlife that has set up home in their seaweed farms, that looks like a good idea.

I cannot see that is likely to be a problem, at least not for the populations: the individual critters that get hauled up with the harvest might get upset, but the overall increased availiability of food would more than make up for that.

Cathryn

Joined: 16 Jul 2005
Posts: 19856
Location: Ceredigion

Posted: Mon Mar 16, 15 9:19 pm Post subject:

Why is a seaweed farm so eco friendly? What would this bay look like if I started to grow a mono crop in it? It's hardly going to leave the ecology unchanged. What's an excessive amount of seaweed? An amount that gets in the way of our recreational use of it? Is the sea overproducing seaweed? Why? Because it smells funny when it rots or something more serious?

Hey, convince me, it would be perfect for me personally.

dpack

Joined: 02 Jul 2005
Posts: 45470
Location: yes

Posted: Mon Mar 16, 15 9:37 pm Post subject:

Hairyloon wrote:

Tavascarow wrote:

Anaerobic digestion to extract methane would be my choice although the high salt content might affect the efficiency on the bacteria.

I'd be very surprised if there are no salt tolerant anaerobic bacteria.

lots of em

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Mon Mar 16, 15 10:03 pm Post subject:

Cathryn wrote:

Why is a seaweed farm so eco friendly? What would this bay look like if I started to grow a mono crop in it?

Why grow a monocrop? If it is just for fuel, then biomass is biomass.

Quote:

What's an excessive amount of seaweed? An amount that gets in the way of our recreational use of it? Is the sea overproducing seaweed? Why? Because it smells funny when it rots or something more serious?

It is overproducing when there is so much that it self shades itself to death. Then it starts to rot, which uses up all the oxygen...

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