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  • From: "van weldon" <woodduckfarm AT ev1.net>
  • To: <market-farming AT lists.ibiblio.org>
  • Subject: RE: [Market-farming] Aerator for Iron Oxide Removal?
  • Date: Fri, 7 Feb 2003 13:04:16 -0600

Using 12 gpm as a flow rate, how about 720 gals. per hour for about 12 hrs.
per day. The size of this stock tank is about 10' in diameter and perhaps 3'
tall(?).

Van

-----Original Message-----
From: market-farming-admin AT lists.ibiblio.org
[mailto:market-farming-admin AT lists.ibiblio.org]On Behalf Of Rick Hopkins
Sent: Friday, February 07, 2003 12:55 PM
To: market-farming AT lists.ibiblio.org
Subject: RE: [Market-farming] Aerator for Iron Oxide Removal?


To add a bit of engineering flavor, the greater the surface area, the
greater the gas exchange rate. There are many ways to accomplish this, but
aeration is the least effective although may be the most economical in
equipment and operating costs. An compressed air supply and a diffuser made
from PVC pipe will suffice.

Maximum aeration can be attained by pumping the water above a medium that
will allow the water to break into a mist as it falls or to cascade the
water down a surface such as a wash board design.

If someone can add in a time factor to this discussion, it would assist in
determining some capacity requirements.

Rick H.

-----Original Message-----
From: market-farming-admin AT lists.ibiblio.org
[mailto:market-farming-admin AT lists.ibiblio.org]On Behalf Of Bill
Shoemaker
Sent: Friday, February 07, 2003 11:54 AM
To: market-farming AT lists.ibiblio.org
Subject: Re: [Market-farming] Aerator for Iron Oxide Removal?


I'm not an engineer so I'm guessing at this. I think the main thing is to
create a mix of air into the water thoroughly enough that the Iron is
exposed to an aerobic condition, which is enough to create the iron oxide
precipitate. Anything that would rotate the bulk of the water in the
container through the jet in a reasonable rate of time (faster than
consumption rates) should do the trick, as long as it truly aerates the
water. I only know this through the work done by a colleague in southern
Illinois, who has left the system since. I never discussed with him the
actual equipment used.

Bill Shoemaker
Sr Research Specialist, Food Crops
Univ of Illinois - St Charles Hort Research Center

-----Original Message-----
From: van weldon <woodduckfarm AT ev1.net>
To: market-farming AT lists.ibiblio.org <market-farming AT lists.ibiblio.org>
Date: Friday, February 07, 2003 10:01 AM
Subject: [Market-farming] Aerator for Iron Oxide Removal?


>Bill,
>
>Is jet fountain a specific type of aerator?
>
>Can a simple water garden type pump, $65 at Home Depot, pushing water up
>into the air, via a perforated PVC pipe, do just as well?
>
>For a 1000 gal. stock tank, any idea as to GPH or GPM needed?
>
>Thanks,
>
>Van
>
>-----Original Message-----
>From: market-farming-admin AT lists.ibiblio.org
>[mailto:market-farming-admin AT lists.ibiblio.org]On Behalf Of Bill
>Shoemaker
>Sent: Friday, February 07, 2003 8:33 AM
>To: market-farming AT lists.ibiblio.org
>Subject: Re: [Market-farming] Irrigation
>
>
>Farmers in the southern half of our state often aerate the water to remove
>the iron. They pump from the well into an open pond, where the water is
sent
>through a jet fountain. As the water is intensely exposed to air, the iron
>precipitates out as iron-oxide. The water becomes safe to use through drip
>irrigation.
>
>Bill Shoemaker
>Sr Research Specialist, Food Crops
>Univ of Illinois - St Charles Hort Research Center
>
>>> Iron is the largest source of clogging in drip, there are two types of
>>iron clogging one is just free iron in water the other is bacteria feeding
>>on the iron creating a slime "ochre" in the tubing. First test your water
>to
>>find the ppm of iron. Chlorine injection is the only way to prevent both
>>clogs you inject 1 ppm of chlorine for each ppm of iron or 2-5 ppm for
each
>>ppm of bacteria...Bob.
>>> Sunny Meadow Farm
>>> Bridgeton, NJ.
>>> >I'm on well water that has a lot of iron. It's not visible in the water
>>but
>>> >my white tiles tell a tale!
>>> >
>>> >Thanks,
>>> >Steve
>>> >www.ranchogordo.com
>>> >
>>> >
>>> >
>>> >_______________________________________________
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>>
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