[Digestion] Digester for Algae waste

[frank]

Hi Rex and all,

Perhaps Water Hyacinth is different than what you plan to do but it sure 
grows fast. I battled a canoe to the center of a lake to collect a 
square meter of the stuff to calculate how much was there and try to 
find something to do with it. incase it helps......
A square yard of material was ~58 lbs wet wt. Back at the lab it dried 
to nothing (93.9 % moisture) so you will have a lot of moisture to 
remove. Ash is 10.8 % on a dry basis so the organic matter is 89.2 % dry 
weight. Nitrogen was 1.0 % dry wt.
On a feed analysis (dry wt) the Crude protein is 6.8%
Crude fat  0.4%
Crude fiber 19%

Should be a fun experiment to do.

Frank




Zietsman, Rex wrote:

>Hi All,
>
>I am building a small algae raceway to see what kind of production I can
>get. I intend fermenting the algae and distilling off the ethanol prior
>adding the residue to an AD. The biogas will be used for heating the
>still to get off the ethanol. The digestate will be added back to the
>algae pond as nutrient. I also intend adding cow manure to the AD as an
>additional source of nutrients.
>
>I have my own design of this digester and would appreciate it if anyone
>on the list would be willing to give me feedback on the design. We are
>about to start clearing the site to build the digester and I want a last
>review before committing. 
>
>Kind regards
>Rex
>
>_______________________________________________
>Digestion mailing list
>Digestion at listserv.repp.org
>http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>Beginner's Guide to Biogas
>http://www.adelaide.edu.au/biogas/
>http://info.bioenergylists.org
>
>
>  
>

-- 
Frank Shields
Soil Control Lab
42 Hangar way
Watsonville, CA  95076
(831) 724-5422 tel
(831) 724-3188 fax
frank at compostlab.com
www.compostlab.com