Thermochemical pretreatment and anaerobic digestion of dairy cow manure: Experimental and economic evaluation

2017 ◽  
Vol 227 ◽  
pp. 239-246 ◽  
Author(s):  
Fabiana Passos ◽  
Valentina Ortega ◽  
Andrés Donoso-Bravo
Keyword(s):  
Economic Evaluation ◽  
Anaerobic Digestion ◽  
Dairy Cow ◽  
Cow Manure ◽  
Thermochemical Pretreatment ◽  
Dairy Cow Manure

scholarly journals Aerobic Composting and Anaerobic Digestion Decrease the Copy Numbers of Antibiotic-Resistant Genes and the Levels of Lactose-Degrading Enterobacteriaceae in Dairy Farms in Hokkaido, Japan

2021 ◽  
Vol 12 ◽  
Author(s):  
Satoshi Katada ◽  
Akira Fukuda ◽  
Chie Nakajima ◽  
Yasuhiko Suzuki ◽  
Takashi Azuma ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Antimicrobial Resistance ◽  
Resistance Genes ◽  
Dairy Cow ◽  
Dairy Farms ◽  
Resistant Bacteria ◽  
Cow Manure ◽  
Aerobic Composting ◽  
Copy Numbers ◽  
Dairy Cow Manure

Efficient methods for decreasing the spread of antimicrobial resistance genes (ARGs) and transfer of antimicrobial-resistant bacteria (ARB) from livestock manure to humans are urgently needed. Aerobic composting (AC) or anaerobic digestion (AD) are widely used for manure treatment in Japanese dairy farms. To clarify the effects of AC and AD on antimicrobial resistance, the abundances of antimicrobial (tetracycline and cefazolin)-resistant lactose-degrading Enterobacteriaceae as indicator bacteria, copy numbers of ARGs (tetracycline resistance genes and β-lactamase coding genes), and concentrations of residual antimicrobials in dairy cow manure were determined before and after treatment. The concentration of tetracycline/cefazolin-resistant lactose-degrading Enterobacteriaceae was decreased over 1,000-fold by both AC and AD. ARGs such as tetA, tetB, and blaTEM were frequently detected and their copy numbers were significantly reduced by ∼1,000-fold by AD but not by AC. However, several ARG copies remained even after AD treatment. Although concentrations of the majority of residual antimicrobials were decreased by both AC and AD, oxytetracycline level was not decreased after treatment in most cases. In addition, 16S rRNA gene amplicon-based metagenomic analysis revealed that both treatments changed the bacterial community structure. These results suggest that both AC and AD could suppress the transmission of ARB, and AD could reduce ARG copy numbers in dairy cow manure.

Improvement of Biodegradability in Anaerobic Digestion of Dairy Cow Manure

1985 ◽  
pp. 247-264 ◽  
Author(s):  
S. Giray Velioğlu ◽  
Kriton Curi ◽  
Ahmet Baban ◽  
Necdet Alpaslan
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Cow ◽  
Cow Manure ◽  
Dairy Cow Manure

Effects of low-temperature dry anaerobic digestion on methane production and pathogen reduction in dairy cow manure

2019 ◽  
Vol 16 (8) ◽  
pp. 4803-4810 ◽  
Author(s):  
R. Rajagopal ◽  
D. Ghosh ◽  
S. Ashraf ◽  
B. Goyette ◽  
X. Zhao
Keyword(s):  
Anaerobic Digestion ◽  
Low Temperature ◽  
Dairy Cow ◽  
Methane Production ◽  
Cow Manure ◽  
Pathogen Reduction ◽  
Dairy Cow Manure ◽  
Dry Anaerobic Digestion

Anaerobic digestion of municipal solid waste and agricultural waste and the effect of co-digestion with dairy cow manure

2008 ◽  
Vol 99 (17) ◽  
pp. 8288-8293 ◽  
Author(s):  
Maritza Macias-Corral ◽  
Zohrab Samani ◽  
Adrian Hanson ◽  
Geoffrey Smith ◽  
Paul Funk ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Dairy Cow ◽  
Agricultural Waste ◽  
Cow Manure ◽  
Dairy Cow Manure

scholarly journals Evaluation of Methane Production From Dairy Cow Manure and Vegetable Waste

2021 ◽  
Vol 13 (4) ◽  
pp. 27
Author(s):  
Ephodia Sihlangu ◽  
Dibungi Luseba ◽  
Khathutshelo A. Nephawe ◽  
Florence V. Nherera-Chokuda
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Cow ◽  
Methane Production ◽  
Biogas Production ◽  
Buffering Capacity ◽  
Animal Waste ◽  
Cow Manure ◽  
Vegetable Waste ◽  
Dairy Cow Manure ◽  
Determine Effect

Dairy cow manure has high buffering capacity hence a substrate for anaerobic digestion, however the process is not optimised in mono-digestion system due to limited substrate. The aim of the study was to assess the effect of co-digesting animal waste and vegetable waste on methane production. Two systems were applied- batch and continuous anaerobic digestion system to determine effect on methane yield. The experiments were conducted with treatments as: manure alone (M), composite of manure with cabbage (MC), manure with potatoes (MP), manure with cabbage and potatoes (MCP), faecal alone (F), faecal with cabbage (FC), faecal with potatoes (FP) and faecal with cabbage and potatoes (FCP). Rectal grab samples were collected prior to incubation and manure was collected from the pens. All treatments were in replicates. Composite of manure or faecal with cabbage and potatoes produced the highest biogas (FCP: 32.1 mL/g DM, MCP: 29.5 mL/g DM) and methane (FCP: 3.13 mL/g DM, MCP: 2.36 mL/g DM) compared to manure alone or faecal alone (F: 27.0 biogas mL/g DM, M: 26.6 biogas mL/g DM) (F: 1.36 methane mL/g DM, M: 1.18 methane mL/g DM). Co-digesting dairy excreta with cabbage as only vegetable substrate affected anaerobic digestion (FC: 24.8 mL/g DM, MC: 24.9 mL/g DM), since it was the lowest in biogas production compared to all treatments. The anaerobic digestion system had an effect in methane production since continuous anaerobic digestion system produced the highest methane compared to batch anaerobic digestion system in all treatments. The results obtained in this study suggest that composite of manure with both cabbage and potatoes results in the highest biogas and methane production.

scholarly journals The effects of temperature and duration of thermal pretreatment on the solid-state anaerobic digestion of dairy cow manure

Heliyon ◽  
2019 ◽  
Vol 5 (7) ◽  
pp. e02140 ◽  
Author(s):  
Wilton P.A. McVoitte ◽  
O. Grant Clark
Keyword(s):  
Anaerobic Digestion ◽  
Solid State ◽  
Dairy Cow ◽  
Cow Manure ◽  
Thermal Pretreatment ◽  
Effects Of Temperature ◽  
Dairy Cow Manure

scholarly journals Improvement of biogas quality product from dairy cow manure using NaOH and Ca(OH)2 absorbents on horizontal tube filtration system of mobile anaerobic digester

2020 ◽  
Vol 6 ◽  
pp. 319-324
Author(s):  
Herwintono ◽  
Aris Winaya ◽  
Khusnul Khotimah ◽  
Asmah Hidayati
Keyword(s):  
Dairy Cow ◽  
Horizontal Tube ◽  
Anaerobic Digester ◽  
Cow Manure ◽  
Filtration System ◽  
Quality Product ◽  
Dairy Cow Manure

Electroporation of harvest residues for enhanced biogas production in anaerobic co-digestion with dairy cow manure

2019 ◽  
Vol 274 ◽  
pp. 215-224 ◽  
Author(s):  
Đurđica Kovačić ◽  
Davor Kralik ◽  
Slavko Rupčić ◽  
Daria Jovičić ◽  
Robert Spajić ◽  
...  
Keyword(s):  
Dairy Cow ◽  
Biogas Production ◽  
Cow Manure ◽  
Harvest Residues ◽  
Dairy Cow Manure

Bioenergy production from nopal cladodes and dairy cow manure on a farm-scale level: Challenges for its economic feasibility in Mexico

2019 ◽  
Vol 142 ◽  
pp. 383-392 ◽  
Author(s):  
Félix Rafael Ramírez-Arpide ◽  
Teodoro Espinosa-Solares ◽  
Clemente Gallegos-Vázquez ◽  
Vinicio Horacio Santoyo-Cortés
Keyword(s):  
Dairy Cow ◽  
Economic Feasibility ◽  
Cow Manure ◽  
Scale Level ◽  
Bioenergy Production ◽  
Farm Scale ◽  
Dairy Cow Manure

scholarly journals Ultrasonication affects the bio-accessibility of primary dairy cow manure digestate for secondary post-digestion

Fuel ◽  
2021 ◽  
Vol 291 ◽  
pp. 120140
Author(s):  
Matthijs H. Somers ◽  
Julie Jimenez ◽  
Samet Azman ◽  
Jean-Philippe Steyer ◽  
Jan Baeyens ◽  
...  
Keyword(s):  
Dairy Cow ◽  
Cow Manure ◽  
Dairy Cow Manure
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