Sorry,
But you're not exactly correct. The value of meal produced from
stickwater is not as good as traditional meal. The salt content is too
high so either additional capital expense needs to be added for salt
removal or the meal is sold at a decreased value. Either way, the
payback is substantially longer than a year and that is if you have the
capital to invest in the first place.
BOD for stickwater is usually between 30,000 and 50,000 mg/l
COD is usually 70,000 to 115,000 mg/l
TSS is usually 20,000 to 30,000 mg/l
Greg Peters
Alyeska Seafoods, Inc.
"Anthony P. Bimbo" wrote:
> <?color><?param 0100,0100,0100> Mauricio: Try the link below. The EU
> has been working on this for some time and fish processing is part of
> the work. Using BOD and COD for stickwater is a non-starter since the
> solids content is around 8% and when converted to fishmeal is an
> enormous amount of yield to lose. With prices where they are now, a
> stickwater plant pays for itself in about a year. The environmental
> load from discharged stickwater should not be tolerated and the cost
> to treat the BOD and COD could be equivalent to a medium to large
> city. Hope this helps. You can read and download the BREF from the
> website, either via the "Utilities and members workspace" page by
> clicking on "Direct Access to
> Public Area" or via the "Activities" page.
>
> The address of the website is http://eippcb.jrc.es.
>
>
> ----- Original Message -----
> From: Mauricio Gonzalez
> To: seafood@ucdavis.edu
> Sent: Tuesday, August 13, 2002 4:19 PM
> Subject: Stickwater, COD, BOD
> Hello Everyone,
>
> Does anybody have information about suspended solids in
> stickwater v/s COD and BOD (herring and shrimp fishmeal
> processing plants)?
>
> Thanks in advance,
>
> Mauricio
>
>
> ==========================================================
> MAURICIO GONZALEZ
> Ph.D. Engineering Sciences
> Docteur en Sciences de l'Ingénierie
> Doctor en Ciencias de la Ingeniería
>
> Marine Products Research and Development Center Inc
> Centre de Recherche et de Développement des Produits Marins Inc
> Centro de Investigación y Desarrollo de Productos Marinos Inc
>
> 218 J.D.Gauthier Boulevard, 5th floor
> 218, boulevard J.-D.-Gauthier, 5e étage
> 218, bulevar J.-D.-Gauthier, 5to piso
> E8S 1P6, Shippagan
> New Brunswick, Canada
> ==========================================================
>
>
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