Effects of Anaerobic Digestion and Solids Separation on Ammonia Emissions from Stored and Land Applied Dairy Manure

2015 ◽  
Vol 226 (9) ◽  
Author(s):  
G. M. Neerackal ◽  
P. M. Ndegwa ◽  
H. S. Joo ◽  
X. Wang ◽  
J. H. Harrison ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Ammonia Emissions ◽  
Solids Separation

Impacts of Anaerobic Digestion and Solids Separation on Ammonia Emissions from Stored Dairy Manure

2013 ◽  
Author(s):  
George Mathew Neerackal ◽  
Hung-Soo Joo ◽  
Xiang Wang ◽  
Pius Mwangi Ndegwa ◽  
Joseph H Harrison ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Ammonia Emissions ◽  
Solids Separation

Ammonia emissions from the field application of liquid dairy manure after anaerobic digestion or mechanical separation in Ontario, Canada

2018 ◽  
Vol 258 ◽  
pp. 89-95 ◽  
Author(s):  
Leigh Evans ◽  
Andrew C. VanderZaag ◽  
Vera Sokolov ◽  
Hambaliou Baldé ◽  
Doug MacDonald ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Field Application ◽  
Ammonia Emissions ◽  
Mechanical Separation

scholarly journals Tetracycline, sulfadimethoxine, and antibiotic resistance gene dynamics during anaerobic digestion of dairy manure

2021 ◽  
Author(s):  
Jenna Schueler ◽  
Stephanie Lansing ◽  
Emily Crossette ◽  
Kayla Naas ◽  
Jerod Hurst ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Anaerobic Digestion ◽  
Resistance Gene ◽  
Antibiotic Resistance Gene ◽  
Dairy Manure

Synergistic effects of Fe salts and composite additives on anaerobic digestion of dairy manure

2019 ◽  
Vol 136 ◽  
pp. 82-90 ◽  
Author(s):  
Sining Yun ◽  
Chen Zhang ◽  
Yi Wang ◽  
Jiang Zhu ◽  
Xinlei Huang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Synergistic Effects ◽  
Dairy Manure

Quantity changes in Pseudomonas species in dairy manure during anaerobic digestion at mesophilic and thermophilic temperatures

2018 ◽  
Vol 21 (3) ◽  
pp. 423-432 ◽  
Author(s):  
Masahiro Iwasaki ◽  
Guangdou Qi ◽  
Yumiko Endo ◽  
Zhifei Pan ◽  
Takaki Yamashiro ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Pseudomonas Species

Psychrophilic anaerobic digestion of screened dairy manure

1986 ◽  
Vol 5 (4) ◽  
pp. 339-345 ◽  
Author(s):  
K.V. Lo ◽  
P.H. Liao
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure

scholarly journals Degradation of antibiotic resistance genes and mobile gene elements in dairy manure anerobic digestion

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0254836
Author(s):  
Yi Wang ◽  
Pramod K. Pandey ◽  
Sundaram Kuppu ◽  
Richard Pereira ◽  
Sharif Aly ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Anaerobic Digestion ◽  
Resistance Genes ◽  
Antibiotic Resistance Genes ◽  
Dairy Manure ◽  
Health Concern ◽  
Animal Origin ◽  
Rrna Gene ◽  
Transposase Gene ◽  
Integrase Gene

Antibiotic resistance genes (ARGs) are emerging contaminants causing serious global health concern. Interventions to address this concern include improving our understanding of methods for treating waste material of human and animal origin that are known to harbor ARGs. Anaerobic digestion is a commonly used process for treating dairy manure, and although effective in reducing ARGs, its mechanism of action is not clear. In this study, we used three ARGs to conducted a longitudinal bench scale anaerobic digestion experiment with various temperatures (28, 36, 44, and 52°C) in triplicate using fresh dairy manure for 30 days to evaluate the reduction of gene abundance. Three ARGs and two mobile genetic elements (MGEs) were studied: sulfonamide resistance gene (sulII), tetracycline resistance genes (tetW), macrolide-lincosamide-streptogramin B (MLSB) superfamily resistance genes (ermF), class 1 integrase gene (intI1), and transposase gene (tnpA). Genes were quantified by real-time quantitative PCR. Results show that the thermophilic anaerobic digestion (52°C) significantly reduced (p < 0.05) the absolute abundance of sulII (95%), intI1 (95%), tnpA (77%) and 16S rRNA gene (76%) after 30 days of digestion. A modified Collins–Selleck model was used to fit the decay curve, and results suggest that the gene reduction during the startup phase of anaerobic digestion (first 5 days) was faster than the later stage, and reductions in the first five days were more than 50% for most genes.

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