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Bioresour Technol


Title:Physical-anaerobic-chemical process for treatment of dairy cattle manure
Author(s):Rico C; Garcia H; Rico JL;
Address:"Department of Sciences and Techniques of Water and Environment, University of Cantabria, Los Castros s/n, Santander, Spain. ricoj@unican.es"
Journal Title:Bioresour Technol
Year:2011
Volume:20101020
Issue:3
Page Number:2143 - 2150
DOI: 10.1016/j.biortech.2010.10.068
ISSN/ISBN:1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:"An overall treatment process for the removal of nitrogen, methane production and obtention of valuable fertilizers from dairy manure has been investigated in laboratory scale. Solid and liquid fractions were separated by flocculation and screening. The solid fraction contained 81.6%, 84.4%, 58.6% and 85.2% of TS, VS, TKN-N and P(T) originally present in manure. Batch anaerobic digestion of this solid fraction at 50 degrees C resulted in methane production of 29.0 L CH(4)/kg. The liquid fraction, free of suspended solids, was satisfactorily treated at 35 degrees C in an upflow anaerobic sludge blanket reactor operating stably at an organic loading rate of 40.8 g COD/(L.d) reaching a methane production of 10.3 L CH(4)/(L.d). Accumulation of volatile fatty acids did not occur. Ammonia nitrogen concentration in the anaerobic effluent fluctuated between 850-1170 mg NH(4)(+)-N/L and was reduced to values less than 100mg NH(4)(+)-N/L by struvite precipitation"
Keywords:"Ammonia/chemistry/*isolation & purification Animals Bacteria, Anaerobic/*metabolism Bioreactors/microbiology Cattle Dairying/*methods Industrial Waste/prevention & control Magnesium Compounds/*chemistry Manure/*microbiology Methane/*metabolism Phosphates/;"
Notes:"MedlineRico, C Garcia, H Rico, J L eng England 2010/11/06 Bioresour Technol. 2011 Feb; 102(3):2143-50. doi: 10.1016/j.biortech.2010.10.068. Epub 2010 Oct 20"

 
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