Jacky Foo [foo@SWIPNET.SE] wrote:
> Paul, I know that you run a digester using piggery wastes.
>What do you currently do with the digested slurry ?
>
> Do you have any on-going IBS project at Roseworthy Campus ?
>
> In your new project proposal, I understand that you will anaerobically
> digest chicken manure and have an aquaculture sub-system too. What is the
> size and number of ponds you intend to build ? Do you think you can achieve
> the yields that Kangmin Li has in his 2 case studies ?
>
> How will the winter months effect your outdoor operation ?

I do not know how you can ask so many very good questions Jacky, well done!

The digester is currently idle/derelict (unfortunately I have not had
time or money to persist) but we were only looking at digestion back
then. The slurry went on to the existing secondary lagoon (now the
primary one), the contents of which are land spread periodically.

No current IBS project, but Ian Nuberg is looking at use of piggery
effluent on Olive trees and lucerne (alfalfa) and we have a woodlot for
dairy effluent disposal. I guess work is being done when you list it,
but not currently under an IBS banner.

The scale of the proposed project depends on funding and we want to do
some small scale trial anyway to try and get the system sorted out
before major works. At the moment it looks like we will be working in
buckets and aquariums, so high yields are expected under well controlled
conditions. The idea is to try different wastes/combinations (we are
looking at chicken waste as that is the only funding body currently
showing any interest, unfortunatly - hence the bucket scale) and
probably an algae pond and a fish pond depending on loading rates.

Winter is 10-20C days and rarely less than 5C nights (from memory - I
should check the long term averages) with plenty (usually) of sunny days
so we hope to get by - most of your questions we want to answer from
data from the project.

Thanks for the enquiries, hope this helps a bit

--
Mr. Paul Harris,
Dept. of Agronomy & Farming Systems,
Roseworthy Campus, The University of Adelaide,
http://www.roseworthy.adelaide.edu.au/~pharris