A novel strategy for gas mitigation during swine manure odour treatment using seaweed and a microbial consortium

Madhavaraj, Lavanya; Lim, Ho-Dong; Kim, Kong-Min; Kim, Dae-Hyuk; Ravindran, Balasubramani; Han, Gui Hwan

doi:10.1007/s11783-020-1230-4

Cited by 2 publications

(6 citation statements)

References 30 publications

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“…The simple reason of utilizing seaweed as a surface masking agent is that they comprise interesting hydrophilic characteristics, which leads to water absorption, therefore contributing to swelling. This swelling on the surface of the manure results in thin masking, hindering the mass transfer from the inside to the outside surface of the manure [30].…”

Section: Discussionmentioning

confidence: 99%

Section: Experimental Descriptionmentioning

confidence: 99%

“…The control barn contained swine manure without seaweed masking (Barn 1), and the test barn contained swine manure with seaweed masking (Barn 2). S. horneri (2% w/v) seaweed powder was sprayed with a KZ989 (Kazumi, Osaka, Japan) sprayer from the front and side areas of each barn to form a layer at a thickness of 0.25 cm on the top of the manure [30] (Figure 2). During the experimental period, the average temperature outside and inside each barn (control and test) was recorded every day by a TP-50 thermometer (ThermoPro, Atlanta, Georgia, USA).…”

Section: Experimental Descriptionmentioning

confidence: 99%

“…Moreover, Sargassum-based organic fertilizers have improved soil conditions and growth parameters for field crops [27]. Consequently, the addition of seaweed to manure as a masking agent has several advantages: (1) an indirect reduction in the amount of seaweed on the coast, thus controlling golden tides [24,25]; (2) the addition of rich nutrients to the manure [28,29]; (3) the odor reduction in swine manure [30]; (4) the development of a sustainable bioadditive for odor mitigation in the livestock industry [30].…”

Section: Introductionmentioning

confidence: 99%

“…In our previous study [30], the effects of S. horneri and a microbial consortium (Bacillus subtilis, Saccharomyces cerevisiae and Thiobacillus sp.) alone and the synergistic effects of this brown seaweed with the microbial consortium on the reduction in swine manure odor were compared in laboratory-scale tests.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Sargassum horneri Mitigating Odorous Gas Emissions from Swine Manure Storage Facilities

Madhavaraj¹,

Lim²,

Kim³

et al. 2020

Sustainability

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Manures from livestock industries and farmyards should be managed for land application. Currently, a deep pit or barn system is adopted by many swine farms for manure management, therefore releasing harmful gases and rising the total global emissions of GHGs. This research focuses on the effectiveness of the brown seaweed Sargassum horneri as a masking agent to mitigate odor-generating gaseous pollutants and reduce the emissions of volatile fatty acids (VFAs) from swine manure storage facilities. Using an optimized procedure, we compared the gaseous emissions from two manure storage barns, one containing swine manure masked with S. horneri and the other without masking as a control, over a 30-day period. The results showed that, compared to the control, seaweed masking significantly reduced the sulfide and VFA contents. Furthermore, reductions of 99.48% in H2S, 60 ± 5.21% in NH3 and 74.28 ± 2.14% in gaseous amine emissions were observed within the experimental period. Intriguingly, seaweed masking had beneficial effects, decreasing the total odor content by 97.78 ± 3.15% and increasing the nutrient quality of the manure. S. horneri has great potential as a masking agent in swine manure management to control environmental pollution.

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Section: Discussionmentioning

confidence: 99%

Section: Experimental Descriptionmentioning

confidence: 99%

Section: Experimental Descriptionmentioning

confidence: 99%