Ammonia and greenhouse gas emissions from co-composting of dead hens with manure as affected by forced aeration rate

dc.contributor.author Dong, Hongmin
dc.contributor.author Zhu, Zhiping
dc.contributor.author Xi, Jialin
dc.contributor.author Xin, Hongwei
dc.contributor.author Xin, Hongwei
dc.contributor.department Animal Science
dc.contributor.department Agricultural and Biosystems Engineering
dc.contributor.department Egg Industry Center
dc.date 2018-05-14T04:34:27.000
dc.date.accessioned 2020-06-29T22:31:38Z
dc.date.available 2020-06-29T22:31:38Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2012-12-13
dc.date.issued 2011-08-01
dc.description.abstract <p>The effect of ventilation rate (VR) on ammonia (NH3) and greenhouse gas (GHG) emissions from composting piles of dead hens mixed with hen manure was quantified by measuring the gaseous concentrations and airflow rate through the compost bins. Three VR levels of 0.9, 0.7 and 0.5 m³/hr/bin (equivalent to the air exchanges per hour of 0.9, 0.7 and 0.5) were evaluated, each with three replicates. The compost piles were turned once (on day 58) during the 11-wk composting period. Gaseous concentrations of the inlet and exhaust air of the compost bins were measured using a multi-gas infrared photoacoustic analyzer coupled with a multi-channel sampler; VR was measured with a flow meter; and the emission rate (ER) of each gas was computed from the VR and the gas concentration. Decomposition of the carcass over the 11-wk composting period was found to be greater than 88%, as assessed by the reduction in carcass mass. NH3 ER was relatively stable when the compost pile was at high temperatures (~60?). Sharp increase in carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) emissions occurred quickly after construction of the compost pile. VR was found to significantly affect NH3, CO2 and CH4 emissions (p less than 0.05). Specifically, cumulative emissions per kg of initial co-compost matter for the three VR of 0.9, 0.7 and 0.5 m³/hr/bin were, respectively, 2.4, 2.0 and 1.2 g NH3; 78, 66 and 42 g CO2; 120, 90 and 52 mg CH4; and 6.4, 6.1 and 5.1 mg N2O. Hence, the study results suggest that the rate of forced aeration can be adjusted to reduce NH3 and GHG emissions from animal mortality compositing.</p>
dc.description.comments <p>This proceeding is published as Dong, Hongmin, Zhiping Zhu, Jialin Xi and Hongwei Xin. "Ammonia and greenhouse gas emissions from co-composting of dead hens with manure as affected by forced aeration rate." ASABE Annual International Meeting, Louisville, KY, August 7-10, 2011. Paper No. 1110759. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/126/
dc.identifier.articleid 1123
dc.identifier.contextkey 3535283
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/126
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/124
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/126/Xin_2011_AmmoniaGreenhouseGas.pdf|||Fri Jan 14 19:25:07 UTC 2022
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Poultry or Avian Science
dc.subject.keywords NH3
dc.subject.keywords Greenhouse gas
dc.subject.keywords Dead hens
dc.subject.keywords Aeration rate
dc.subject.keywords Composting
dc.title Ammonia and greenhouse gas emissions from co-composting of dead hens with manure as affected by forced aeration rate
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 36e0a8ce-fa2e-4df4-9f67-8d1717122650
relation.isOrgUnitOfPublication 85ecce08-311a-441b-9c4d-ee2a3569506f
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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