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dc.contributor.authorO'Flynn, Cornelius J.
dc.contributor.authorHealy, Mark G.
dc.date.accessioned2013-07-26T09:55:54Z
dc.date.available2013-07-26T09:55:54Z
dc.date.issued2013
dc.identifier.citationO Flynn, C.J., Healy, M.G., Lanigan, G.J., Troy, S.M., Somers, C., Fenton, O. (2013) 'Impact of chemically amended pig slurry on greenhouse gas emissions, soil properties and leachate'. Journal Of Environmental Management, 128 :690-698.en_US
dc.identifier.urihttp://hdl.handle.net/10379/3541
dc.description.abstractThe effectiveness of chemical amendment of pig slurry to ameliorate phosphorus (P) losses in runoff is well studied, but research mainly has concentrated only on the runoff pathway. The aims of this study were to investigate changes to leachate nutrient losses, soil properties and greenhouse gas (GHG) emissions due to the chemical amendment of pig slurry spread at 19 kg total phosphorus (TP), 90 kg total nitrogen (TN), and 180 kg total carbon (TC) ha-1. The amendments examined were: (1) commercial grade liquid alum (8% Al2O3) applied at a rate of 0.88:1 [Al:TP] (2) commercial-grade liquid ferric chloride (38% FeCl3) applied at a rate of 0.89:1 [Fe:TP] and (3) commercial-grade liquid poly-aluminium chloride (PAC) (10% Al2O3) applied at a rate of 0.72:1 [Al:TP]. Columns filled with sieved soil were incubated for 8 mo at 10oC and were leached with 160 ml (19 mm) distilled water wk-1.  All amendments reduced the Morgan s phosphorus and water extractable P content of the soil to that of the soil-only treatment, indicating that they have the ability to reduce P loss in leachate following slurry application. There were no significant differences between treatments for nitrogen (N) or carbon (C) in leachate or soil, indicating no deleterious impact on reactive N emissions or soil C cycling. Chemical amendment posed no significant change to GHG emissions from pig slurry, and in the cases of alum and PAC, reduced cumulative N2O and CO2 losses. Chemical amendment of land applied pig slurry can reduce P in runoff without any negative impact on nutrient leaching and GHG emissions. Future work must be conducted to ascertain if more significant reductions in GHG emissions are possible with chemical amendments.en_US
dc.formatapplication/pdfen_US
dc.language.isoenen_US
dc.relation.ispartofJournal Of Environmental Managementen
dc.subjectpig slurryen_US
dc.subjectP sorbing amendmentsen_US
dc.subjectWater Framework Directiveen_US
dc.subjectnitrateen_US
dc.titleImpact of chemically amended pig slurry on greenhouse gas emissions, soil properties and leachate.en_US
dc.typeArticleen_US
dc.date.updated2013-07-23T09:23:14Z
dc.local.publishedsourcehttp://dx.doi.org/10.1016/j.jenvman.2013.06.020en_US
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funder|~|IRCSET|~|
dc.internal.rssid4706991
dc.local.contactMark Healy, Dept. Of Civil Engineering, Room E210, Civil Engineering Building, Nui Galway. 5364 Email: mark.healy@nuigalway.ie
dc.local.copyrightcheckedYes
dc.local.versionACCEPTED
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