Oh I have lots of experience in cleaning manure, compost and the like. I even published a test procedure on how to do it in TMECC methods manual for the US Composting Council. Nice to work with clean manure. So much better than that dirty smelly stuff.
You need two buckets. One five gallon and the other three gallon size. Cut the bottom out of the three gallon size and duct tape a fine mesh screen to cover the bottom. Add manure to the five gallon bucket and fill with water and stir. Insert the smaller bucket and with an up -N down motion lower it into the solution. The up and down will keep the particles from clogging the screen. Pump or dip out the water from the small bucket. We use this to measure weed seeds in compost and manure so the screen size is small enough to keep weed seeds from being removed from the manure. We get 80 to 90% recovery from spiked samples using cucumber. We need to remove the salts so we wash with di water until the EC is below 1 mmhos/cm. We also do not want the manure to go anaerobic when growing the seeds so the wash removes the more available soluble organics. If you want to dry the washed manure just burry a roll of toilet paper in the center of the sample and leave overnight. Water goes in and all you need to do is unwrap the first layer of paper. All this is lab scale, of course. Frank Frank Shields 42 Hangar Way Watsonville, CA 95076 (831) 724-5244 tel (831) 724-3188 fax [email protected] From: [email protected] [mailto:[email protected]] On Behalf Of Kevin Sent: Friday, February 10, 2012 7:52 AM To: Discussion of biomass cooking stoves Subject: Re: [Stoves] Cleaning Dung Dear Boston ----- Original Message ----- From: Boston Nyer <mailto:[email protected]> To: Discussion of biomass cooking stoves <mailto:[email protected]> Sent: Friday, February 10, 2012 11:06 AM Subject: [Stoves] Cleaning Dung Hello, I'm looking to clean/rinse cow dung and do not have any experience doing so. Does anyone have any experience cleaning dung and would like to share? # I've never done it, but I think it is a good idea, requiring further development work. Big thing is to have use for the "wash water". # Simplest thing would be to slurry the Manure/dung to remove solubles. Solubles could be simply decanted, or the remaining pulp could be filter pressed to get a drier cake. # Removal of the soluble protein, salts and micronutrients should allow the remaining fibre to be dried easier, to have a higher calorific value, and to burn safer, with less risk of dioxin formation. Washed dung could be briquetted in a simple press, but the washing process would probably remove the natural "binders", and thus a binder of some sort may have to be added. Richard Stanley has done a lot of work on manufacturing fuel briquettes from various locally available biomass feeds # On the one hand, the "dung wash water" could make an excellent "Fertigation Feed." On the other hand, depending on dung source, soil type, local rainfall, crop being grown, intensity of use, etc, there may be a problem with salt buildup in the soil. Best wishes, Kevin Chisholm Thank you! Boston -- Boston Skype: BostonNyer Cell: (585) 503-3459 www.burndesignlab.org _____ _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists .org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/ _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2112/4801 - Release Date: 02/10/12
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