Japanese indoor farm

On 12 September 2014 16:25, 'Combs, Mike' mikecombs@... [spacesettlers] <
spacesettlers@yahoogroups.com> wrote:

>
> For "fungi, viruses, insects, bacteria, rodents", we might stand a
> better chance trying to block them at the entrance to the overall habitat
> than at the interfaces between the living and agricultural areas.
>

No, realistically, you stand a much worse chance; but it may be worth
trying to do that as well; defence in depth is an important concept; you
don't want brittle biosecurity.

Insects you can track down and kill, or poison. Rodents, also.

Molds and fungi? Bacteria? Block them from ever getting into your habitat?

Good luck with that!

> As for "seeds, pollen", I suppose we should try to prevent them from
> emerging from the ag areas where possible (allergy sufferers would probably
> vote for that). But such may not prove practical. As you say, there will
> probably be "oopses" even between separate habitats.
>
> Within a single habitat, I don't know that we'll ever be able to
> completely isolate the living areas from the ag areas. Workers, produce,
> and waste product will be constantly crossing that barrier.
>

Yes, but it would be like a clean-room or operating theatre type thing. You
change your clothes on the way in, vacuum yourself, spray with disinfectant
and wear a hair net.

That's how these places work on Earth, pretty sure it would be the same on
a habitat. The risks are lower in a habitat, because the winds can't carry
stuff in, but for any large habitat, they're not that much lower because
humans unwittingly move things around all the time. Think: Hawaii but where
you can actually physically separate the food and air production from the
people.

I mean, yes you can sterilise afterwards if something goes wrong, but you
really don't want to have to; it's expensive.

Regards,
>
> Mike Combs
>
> *From:* spacesettlers@yahoogroups.com [mailto:
> spacesettlers@yahoogroups.com]
> *Sent:* Friday, September 12, 2014 10:04 AM
> *To:* spacesettlers@yahoogroups.com
> *Subject:* Re: [spacesettlers] Re: Japanese indoor farm
>
> You have to be a bit careful; you don't want to permit anything nasty
> getting from the living space into the life support; fungi, viruses,
> insects, bacteria, rodents, seeds, pollen really nothing should go between
> the two.
>
> It's easy to think that the living space will be antiseptic, but it really
> won't. Provided people go between habitats, they can easily carry unwanted
> passengers around.
>
> CO2 can be dissolved in water, and pumped around like that. You'll
> probably want to momentarily heat the gas up to well over 100C to sterilise
> it in between.
>
> On 11 September 2014 14:26, 'Combs, Mike' mikecombs@...
> [spacesettlers] wrote:
>
> I think if we just assure good, continuous airflow between the two
> section, we're good.
>

--
-Ian Woollard

mikecombs@...
[spacesettlers]
<
spacesettlers@yahoogroups.com
>
For “
fungi, viruses, insects, bacteria, rodents
”, we might stand a better chance trying to block them at the entrance to the overall habitat than at the interfaces between the living and agricultural areas.
No, realistically, you stand a much worse chance; but it may be worth trying to do that as well; defence in depth is an important concept; you don't want brittle biosecurity.
Insects you can track down and kill, or poison. Rodents, also.
Molds and fungi? Bacteria? Block them from ever getting into your habitat?
Good luck with that!

As for “
seeds, pollen
”, I suppose we should try to prevent them from emerging from the ag areas where possible (allergy sufferers would probably vote for that). But such may not prove practical. As you say, there will probably be “oopses” even between separate habitats.

Within a single habitat, I don’t know that we’ll ever be able to completely isolate the living areas from the ag areas. Workers, produce, and waste product will be constantly crossing that barrier.
Yes, but it would be like a clean-room or operating theatre type thing. You change your clothes on the way in, vacuum yourself, spray with disinfectant and wear a hair net.
That's how these places work on Earth, pretty sure it would be the same on a habitat. The risks are lower in a habitat, because the winds can't carry stuff in, but for any large habitat, they're not that much lower because humans unwittingly move things around all the time. Think: Hawaii but where you can actually physically separate the food and air production from the people.
I mean, yes you can sterilise afterwards if something goes wrong, but you really don't want to have to; it's expensive.
Regards,
Mike Combs

From:
spacesettlers@yahoogroups.com
[mailto:
spacesettlers@yahoogroups.com
]
Sent:
Friday, September 12, 2014 10:04 AM
To:
spacesettlers@yahoogroups.com
Subject:
Re: [spacesettlers] Re: Japanese indoor farm

You have to be a bit careful; you don't want to permit anything nasty getting from the living space into the life support; fungi, viruses, insects, bacteria, rodents, seeds, pollen really nothing should go between the two.
It's easy to think that the living space will be antiseptic, but it really won't. Provided people go between habitats, they can easily carry unwanted passengers around.
CO2 can be dissolved in water, and pumped around like that. You'll probably want to momentarily heat the gas up to well over 100C to sterilise it in between.

On 11 September 2014 14:26, 'Combs, Mike'
mikecombs@...
[spacesettlers] <
spacesettlers@yahoogroups.com
> wrote:

I think if we just assure good, continuous airflow between the two section, we’re good.
-Ian Woollard