animal manure waste & nutrient management
animal manure waste & nutrient management
(OP)
I am looking at established waste water technologies that have been applied to animal waste streams. My emphasis is on early solids - liquid separation with TSS & TDS removal of 80% or more. The intent is to capture and stabilize as much of the N P & K in a manageble solid that may or may not require further proccesing. Any experience you have or can point me to will be appreciated.
RE: animal manure waste & nutrient management
If you want to drop me a line (mark.ley@csgwasteman.co.uk) I would be more than happy to be of any use I can.
RE: animal manure waste & nutrient management
Dick Kersey of Orenda Technologies in Connecticutt (800-322-1648) can probably help you here. Feel free to tell him i referred you.
DAve Orlebeke
Aquatic Technologies
RE: animal manure waste & nutrient management
RE: animal manure waste & nutrient management
RE: animal manure waste & nutrient management
RE: animal manure waste & nutrient management
http://www.epa.gov/agstar/
It is largely focused on solids waste disposal .. by adding it to water for anaerobic digestion (instead of composting).
The TSS is largely eliminated. Although TDS is not solidified, a small amount (compared to composting) of odour free sludge remains, that can be used as potting soild, etc. TSS and organics are converted to biogas fuel (CH4 & CO2). The resulting wastewater is more useable in larger quantities for more effective agricultural nutrient management...Odour free, TOC and organic-nitrogen reduced, etc., but with valuable TDS components (phosphate, etc).
In some cases, economics are attractive, particualry in niche markets (eg: producer needs enhanced manure disposal capacity). If CO2 reduction credits are offered, and/or if energy costs remain high, economics improve markedly. As one in a group of chemical engineers offering services in this field, we look forward to future development, as in Europe (Denmark, Germany, etc,), where environmental restrictions and energy economics favour further development. Perhaps anaerobic digestion will help improve your process.