Japanese indoor farm

On Sep 12, 2014, at 8:29 AM, Lucio de Souza Coelho lucioc@... [spacesettlers] wrote:

>
> I would also like to point that a completely antiseptic, hospital-like environment is simply not desirable under a public health point of view. See: http://en.wikipedia.org/wiki/Hygiene_hypothesis#Epidemiological_evidence

Hospitals are not antiseptic. Far from it. They try, of course, but every hospital is full of bacteria and viruses. There are even disease organisms that live entirely or almost entirely in hospitals.

Give up trying to keep all bacteria, mold, fungus, and viruses out. Its literally impossible and would be a disaster if you somehow achieved it since we cannot survive without them. What you can do is reduce the numbers of pathogens which are a tiny fraction of all single celled organisms. To do that you need to know a lot about the pathogens. The good news is there is a lot of expertise on the matter and they publish in PubMed which is, I think, available in full text for free (anyone know for sure?).

>
> On Fri, Sep 12, 2014 at 12:25 PM, 'Combs, Mike' mikecombs@... [spacesettlers] 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. 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 dont know that well ever be able to completely isolate the living areas from the ag areas. Workers, produce, and waste product will be constantly crossing that barrier.
>
> 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, were good.
>

lucioc@...
[spacesettlers] <
spacesettlers@yahoogroups.com
> wrote:
I would also like to point that a completely antiseptic, hospital-like environment is simply not desirable under a public health point of view. See:
http://en.wikipedia.org/wiki/Hygiene_hypothesis#Epidemiological_evidence
Hospitals are not antiseptic. Far from it. They try, of course, but every hospital is full of bacteria and viruses. There are even disease organisms that live entirely or almost entirely in hospitals.
Give up trying to keep all bacteria, mold, fungus, and viruses out. Its literally impossible and would be a disaster if you somehow achieved it since we cannot survive without them. What you can do is reduce the numbers of pathogens which are a tiny fraction of all single celled organisms. To do that you need to know a lot about the pathogens. The good news is there is a lot of expertise on the matter and they publish in PubMed which is, I think, available in full text for free (anyone know for sure?).
On Fri, Sep 12, 2014 at 12:25 PM, 'Combs, Mike'

mikecombs@...m

[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. 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 dont know that well ever be able to completely isolate the living areas from the ag areas. Workers, produce, and waste product will be constantly crossing that barrier.

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, were good.