Discovery of a new method to reduce methane emissions from farm dairy effluent
dc.contributor.author | Cameron, Keith | |
dc.contributor.author | Di, Hong | |
dc.date.accessioned | 2021-11-03T21:35:12Z | |
dc.date.available | 2021-07-23 | |
dc.date.issued | 2021-11 | |
dc.date.submitted | 2021-06-28 | |
dc.description.abstract | Purpose: The New Zealand Government requires gross emissions of biogenic methane (CH₄) to be reduced to 10% below 2017 levels by 2030. However, the amount of CH₄ emissions reported in the ‘Manure Management’ category of New Zealand’s Greenhouse Gas Inventory has increased by 123% since 1990. The purpose of this research was to determine the effect of treating farm dairy effluent (FDE) with polyferric sulphate (PFS) on CH₄ emissions. Methods: The effect of treating FDE with PFS on CH4 emissions was measured at four scales: (i) 1-L gas jars in the laboratory, (ii) 1.1-m-deep × 150-mm-diameter pipe microcosms in the laboratory, (iii) large 3.4-m-deep × 0.47-m-diameter pipes on-farm, and (iv) 2-m-deep × 8.4-m-diameter (100,000 L) commercial effluent storage tanks on a farm. Gas emissions were captured by repeated discrete sampling and CH₄ concentrations were determined by gas chromatography. Results: We discovered that treating FDE with PFS at an average rate of 220 mg Fe L¯¹ of FDE reduced CH₄ emissions by up to 99% and that this effect continued for an extended period of time (up to 2 months) after treatment. The PFS treatment also reduced CO₂ emissions by approximately 50% and reduced hydrogen sulphide emissions. PFS treatment resulted in a small increase in nitrous oxide (N₂O) emissions, but these emissions were very low and only represented < 3% of the total CO₂-e greenhouse gas emissions from the treated FDE. Conclusions: A new method to reduce CH₄ emissions from farm dairy effluent by up to 99% has been discovered. | |
dc.format.extent | pp.3543-3555 | |
dc.identifier | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=elements_prod&SrcAuth=WosAPI&KeyUT=WOS:000676088800001&DestLinkType=FullRecord&DestApp=WOS_CPL | |
dc.identifier.doi | 10.1007/s11368-021-03014-w | |
dc.identifier.eissn | 1614-7480 | |
dc.identifier.issn | 1439-0108 | |
dc.identifier.other | WH5JY (isidoc) | |
dc.identifier.uri | https://hdl.handle.net/10182/14358 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Springer | |
dc.relation | The original publication is available from Springer - https://doi.org/10.1007/s11368-021-03014-w - http://dx.doi.org/10.1007/s11368-021-03014-w | |
dc.relation.isPartOf | Journal of Soils and Sediments | |
dc.relation.uri | https://doi.org/10.1007/s11368-021-03014-w | |
dc.rights | © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 | |
dc.subject | carbon dioxide | |
dc.subject | effluent | |
dc.subject | greenhouse gas | |
dc.subject | hydrogen sulphide | |
dc.subject | methane | |
dc.subject | nitrous oxide | |
dc.subject | pondspolyferric sulphate | |
dc.subject | redox potential | |
dc.subject.anzsrc2020 | ANZSRC::30 Agricultural, veterinary and food sciences | |
dc.subject.anzsrc2020 | ANZSRC::37 Earth sciences | |
dc.subject.anzsrc2020 | ANZSRC::41 Environmental sciences | |
dc.title | Discovery of a new method to reduce methane emissions from farm dairy effluent | |
dc.type | Journal Article | |
lu.contributor.unit | LU | |
lu.contributor.unit | LU|Agriculture and Life Sciences | |
lu.contributor.unit | LU|Agriculture and Life Sciences|SOILS | |
lu.contributor.unit | LU|Research Management Office | |
lu.contributor.unit | LU|Research Management Office|OLD QE18 | |
lu.identifier.orcid | 0000-0002-7631-1636 | |
lu.identifier.orcid | 0000-0002-6966-0299 | |
pubs.issue | 11 | |
pubs.notes | sec 1 • Soil Organic Matter Dynamics and Nutrient Cycling | |
pubs.publication-status | Published | |
pubs.publisher-url | http://dx.doi.org/10.1007/s11368-021-03014-w | |
pubs.volume | 21 |