Effects of SOP Lagoon Additive on Gaseous Emissions from Stored Liquid Dairy Manure

Carlyn B. Peterson, Hamed M. El Mashad, Yongjing Zhao, Yuee Pan and Frank M. Mitloehner
Additional contact information
Carlyn B. Peterson: Department of Animal Science, University of California, Davis, Davis, CA 95616-8521, USA
Hamed M. El Mashad: Department of Biological & Agricultural Engineering, University of California, Davis, Davis, CA 95616-8521, USA
Yongjing Zhao: Air Quality Research Center, University of California, Davis, Davis, CA 95616-8521, USA
Yuee Pan: Department of Animal Science, University of California, Davis, Davis, CA 95616-8521, USA
Frank M. Mitloehner: Department of Animal Science, University of California, Davis, Davis, CA 95616-8521, USA

Sustainability, 2020, vol. 12, issue 4, 1-17

Abstract: Animal manure is a source of greenhouse gas (GHG) emissions and other pollutants and nuisances such as ammonia and odors. There are several technologies to reduce emissions on animal farms including manure additives; however, few have been proven effective and easy to apply to dairy lagoon systems. The present research aimed at testing the ability of the commercial additive “SOP LAGOON” to reduce emissions of GHGs (i.e., carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O)), as well as ammonia (NH 3 ) and odors from lagoon stored liquid manure. Emissions of GHGs, NH 3 and odors were measured in the laboratory from barrels filled with 65 L of manure treated with SOP LAGOON or left untreated as a control. Manure was collected from a commercial dairy that is located in Solano County, California. Emissions of GHGs and NH 3 were continuously measured for one week using flux chambers placed on top of the barrels and connected to a mobile air emissions laboratory. The effects of the untreated control, versus the two respective treatment additive doses of 30.8 and 61.6 g/m 3 of manure were compared to each other. The low dose was selected based on the manufacturer recommendation and the high dose was selected by doubling the low dose. Results showed that SOP LAGOON applied at the high dose (61.6 g of SOP LAGOON per m 3 of manure) versus the control greatly reduced ( p < 0.05) emissions of CO 2 , CH 4 , N 2 O and NH 3 by 14.7%, 22.7%, 45.4% and 45.9%, respectively. Furthermore, the high dose of SOP LAGOON treated samples versus the control samples showed less odor intensity ( p < 0.05). There was no significant effect of the low dose of SOP LAGOON on the emissions of different gases. The HIGH dose of SOP LAGOON might decrease the number of methanogens and hydrolytic microorganisms and their excreted enzymes during manure storage. Further studies are needed to investigate the mechanism of emission reduction using SOP LAGOON.

Keywords: sustainability; SDG; GHG; ammonia; odor; dairy; liquid manure; manure additive (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.mdpi.com/2071-1050/12/4/1393/pdf (application/pdf)
https://www.mdpi.com/2071-1050/12/4/1393/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:4:p:1393-:d:320256

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().