---------- Forwarded message ----------
Date: Thu, 17 Aug 2000 12:47:29 +0200
From: Jacky Foo <[log in to unmask]>
Reply-To: "IBSnet: General Forum on Integrated Bio-Systems"
    <[log in to unmask]>
To: [log in to unmask]
Subject: [IBS-GEN] fertilising fish-pond water

---forwarded------(edited)
Source: [log in to unmask]
From:    [log in to unmask]


[log in to unmask] [mailto:[log in to unmask]] writes:
>> I know somebody is going to complain about E. coli, etc.,
>>being a problem but that can be handled by treating the
>>manures first to sterile them.
>
> isn't that missing the point?

Not at all, Karen.

The nutrients feed the algae, or duckweed or whatever you decide to use the
organic rich water for.  The sterilization is so that the fish don't get
exposed to any of the potentially harmful organisms in the effluent.  I have
no reason to think that the fish would be harmed but this step can be taken
easily and some producers might prefer it.

If you use the effluent from an anaerobic digester there is no need for
further pathogen reduction because the discharge from a digester is basically
clean already.  So it can be used to feed algae and supplement your
manufactured fish feed very economically.

Cornelius A. Van Milligen
Iowa Protein Inc

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