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J Environ Manage


Title:Solids and nutrient removal from flushed swine manure using polyacrylamides
Author(s):Paz Perez-Sangrador M; Cristina Leon-Cofreces M; Acitores-Benavente M; Cruz Garcia-Gonzalez M;
Address:"Agriculture Technological Institute of Castilla y Leon (ITACyL), Livestock Research Area, Carretera de Burgos, Valladolid, Spain"
Journal Title:J Environ Manage
Year:2012
Volume:20110918
Issue:1
Page Number:67 - 70
DOI: 10.1016/j.jenvman.2011.07.020
ISSN/ISBN:1095-8630 (Electronic) 0301-4797 (Linking)
Abstract:"Most of the organic nutrient elements (nitrogen and phosphorus) and carbon compounds in liquid swine are contained in fine suspended particles. Flocculation treatment with polyacrylamide (PAM) followed by screening is one the best methods to separate the liquid fraction from the solid fraction in swine manure, and thus to eliminate nutrient elements associated with solids. In this study, the efficiency of a synthetic polyacrylamide to treat swine manure was evaluated. After polymer treatment samples were sieved and the filtrated liquid was analyzed. TSS, VSS and COD concentrations in the liquid fraction were 2.17, 1.93 and 16.42 g/L respectively, accounting for 94, 94 and 77% removal percentages for TSS, VSS and COD using 30 mg/L of PAM"
Keywords:Acrylic Resins/*chemistry Animals Biological Oxygen Demand Analysis Filtration Flocculation *Manure/analysis Suspensions *Swine Volatile Organic Compounds/analysis Waste Management/*methods;
Notes:"MedlinePaz Perez-Sangrador, Maria Cristina Leon-Cofreces, Maria Acitores-Benavente, Milagros Cruz Garcia-Gonzalez, Maria eng Research Support, Non-U.S. Gov't England 2011/11/08 J Environ Manage. 2012 Jan; 93(1):67-70. doi: 10.1016/j.jenvman.2011.07.020. Epub 2011 Sep 18"

 
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