[USCC] Pelletizing equipment for compost

[Maureen Reilly]

Dear Tamara
 
You ask about making biosolids pellets.
This is very costly, especially since the cost of fuel to dry the sludge pellets is increasingly expensive ... Toronto is paying nearly $3M per year for natural gas and electricity alone per year for the pelletizer to yeild about 18,000 dry tonnes.  That is $167 per dry tonne of pellets....and no one will pay that much to purchase the pellets.
 
Also the dried pellets are prone to explosion - organic dust explosion, and also to fires where the pellets are damp - they can easily reach a combustion temperature and need to be carefully stored.
 
Maureen Reilly
 


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> From: tnthomas at terre-source.com
> To: compost at mailman.cloudnet.com
> Date: Mon, 8 Jun 2009 11:10:29 -0700
> Subject: Re: [USCC] Pelletizing equipment for compost
>
> Thank you, Bobby,
>
> I am investigating this question, not so much hoping to reduce
> handling, as to expand potential markets, to (maybe) make the products
> easier to apply, and to improve options for longer term storage. This
> inquiry targets not only biosolids compost, but also non-composted
> biosolids. Your appreciation for compost is well founded!
>
> And Thank you, to the rest of you with experience in this technology, for
> your input!
>
> Tamara Thomas, P.E.
> Terre-SourceLLC
> Helping Compost Happen!
> 360-336-3536 Office
> 360-336-3530 FAX
> 425-844-6068 Field