Development and testing of an evaluation procedure for commercial manure additive products
Article
Article Title | Development and testing of an evaluation procedure for commercial manure additive products |
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ERA Journal ID | 3455 |
Article Category | Article |
Authors | Banhazi, T. (Author), Hudson, N. (Author), Dunlop, M. (Author), Dyson, C. (Author) and Thomas, R. (Author) |
Journal Title | Biosystems Engineering |
Journal Citation | 103 (3), pp. 321-328 |
Number of Pages | 8 |
Year | 2009 |
Publisher | Elsevier |
Place of Publication | London, UK |
ISSN | 1537-5110 |
1537-5129 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biosystemseng.2009.04.011 |
Abstract | Manure additive products can be used to reduce odour emissions (OE) from livestock farms. The standardised evaluation of these manure additive products under specific farm conditions is important. In this study, the efficacy of a manure additive (WonderTreat™, CKLS, Inc., Hong Kong) was assessed under Australian conditions utilising a combination of laboratory and field-scale evaluation techniques. As a first step, the efficacy of the manure additive was assessed in a laboratory-scale trial using a series of uniformly managed digesters and standard odour, liquor ammonia and hydrogen sulphide concentration measurement procedures. This showed that the addition of WonderTreat™ at the 'low dose rate' (LDR) (102.6 g m-2) used during the trial significantly, but only marginally (30%; P = 0.02) reduced the OE rate (mean 13.9 OU m-2 s-1) of anaerobic pig liquor relative to an untreated control (UC) (19.9 OU m-2 s-1). However, the 'high dose rate' (HDR) (205.3 g m-2) also assessed during the trial preformed similarly (19.7 OU m-2 s-1) to the UC. No statistically significant difference in the concentrations of a range of measured water quality variables at the 5% level was observed between the treatments or controls digesters. As a second step, a field-scale assessment of the manure additive was undertaken at a commercial piggery. Two piggery manure lagoons (each with approximately 2500 m2 surface area) were included in the study; one was treated with WonderTreat™ while the other was used as control. The efficacy of the treatment was assessed using olfactometric evaluation of odour samples collected from the surface of the pond using a dynamic wind tunnel and ancillary equipment. No statistically significant reduction in OE rate could be demonstrated (P = 0.35), partially due to the limited number of samples taken during the assessment. However, there was a numerical reduction in the average OE rate of the treatment pond (29 OU m-2 s-1 at 1 m s-1) compared to the control lagoon (38 OU m-2 s-1 at 1 m s-1). |
Keywords | ancillary equipment; dynamic wind tunnels; field scale; high dose rate; Hong Kong; hydrogen sulphide; laboratory scale; low dose rate; manure additive; manure lagoons; odour emissions; treatment ponds; sewage lagoons |
ANZSRC Field of Research 2020 | 300302. Animal management |
310605. Industrial microbiology (incl. biofeedstocks) | |
310799. Microbiology not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Adelaide |
Department of Primary Industries and Fisheries, Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0q4y/development-and-testing-of-an-evaluation-procedure-for-commercial-manure-additive-products
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