scholarly journals Evaluation of Biogas Production by Anaerobic Digestion of Duckweed (Lemna minor) and Cattle Manure

2021 ◽  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Lemna Minor ◽  
Cattle Manure

Binary and ternary trace elements to enhance anaerobic digestion of cattle manure: Focusing on kinetic models for biogas production and digestate utilization

2021 ◽  
Vol 323 ◽  
pp. 124571
Author(s):  
Kaijun Wang ◽  
Sining Yun ◽  
Tian Xing ◽  
Bingjie Li ◽  
Yasir Abbas ◽  
...  
Keyword(s):  
Trace Elements ◽  
Anaerobic Digestion ◽  
Kinetic Models ◽  
Biogas Production ◽  
Cattle Manure

Statistical modelling of the impact of some polyphenols on the efficiency of anaerobic digestion and the co-digestion of the wine distillery wastewater with dairy cattle manure and cheese whey

2010 ◽  
Vol 62 (3) ◽  
pp. 475-483 ◽  
Author(s):  
M. Akassou ◽  
A. Kaanane ◽  
A. Crolla ◽  
C. Kinsley
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Cattle ◽  
Biogas Production ◽  
Degradation Kinetics ◽  
Inhibitory Effect ◽  
Cattle Manure ◽  
Coumaric Acid ◽  
Biogas Yield ◽  
Distillery Wastewater ◽  
The Impact

The objective of this study was to determine the effectiveness of anaerobic digestion in the treatment of polyphenols (PP) present in olive mill wastewater (OMW) and wine distillery wastewater (WDW). Anaerobic Toxicity Assay (ATA) was conducted to assess the impact of the most representative phenolic compounds present in OMW and WDW: catechol, tannins and p-Coumaric acid, on biogas production. The results from this study show that tannins do not present any inhibitory effect on methanogenesis at a concentration level of 1,664 ppm, whereas catechol has an inhibitory effect at 1,664 ppm. In addition, p-Coumaric acid was strongly inhibitory at 50 ppm. The co-digestion of OMW and WDW with other effluents was proposed as a solution for reducing the load of PP in the anaerobic medium. Biochemical methane potential (BMP) tests were carried out for dairy cattle manure and mixtures of five PP. A central composite design was implemented on the BMP tests to model the biogas production response and the degradation kinetics of PP. The co-digestion of WDW with cattle manure and/or whey was also investigated in BMP tests. The results show that the digestion was optimal at a ratio of 16: 64: 20 (WDW: manure: inoculum) with a maximum biogas yield of 172 mL/g of VS and 66% COD removal.

Performance, Microbial Community Analysis and Fertilizer Value of Anaerobic Co-digestion of Cattle Manure with Waste Kitchen Oil

2019 ◽  
Vol 35 (2) ◽  
pp. 239-248 ◽  
Author(s):  
Ricardo Galbiatti Sandoval Nogueira ◽  
Teng Teeh Lim ◽  
Haoqi Wang ◽  
Paulo Henrique Mazza Rodrigues
Keyword(s):  
Anaerobic Digestion ◽  
Hydraulic Retention Time ◽  
Biogas Production ◽  
Preliminary Test ◽  
Community Analysis ◽  
Cattle Manure ◽  
Microbial Community Analysis ◽  
Fertilizer Value ◽  
Replication Control ◽  
Mesophilic Conditions

Abstract. Co-digestion trials of beef cattle manure and waste kitchen oil (WKO) were conducted to evaluate potential increase of biogas production for a local beef farm anaerobic digester. The trials were conducted using laboratory-scale, semi-continuously loaded digesters under mesophilic conditions, with 21-day hydraulic retention time (HRT). In a preliminary test, WKO was added at 0%, 0.5%, 1.0%, 1.5%, and 2.0% by volume, each with replicate digesters (n=2), except for the 0% level, which had one digester (n=1). Methane (CH4) yield per week increased linearly with WKO levels. Populations of bacteriodetes decreased, while clostridiales and synergistales increased with the WKO levels. A second test was conducted using treatments with more replication: control (n=3), and 1.0% (n=3) and 2% (n=3) WKO levels. Methane yields of the 1.0% and 2.0% WKO levels were 79.1% and 203% higher than the control, respectively. Addition of WKO have resulted in changes of the metagenomics of the digesters. Populations of clostridiales increased, while bacteroidales and euryarchaeota methanomicrobia YC-E6 decreased with the WKO levels. The findings confirm adding low amounts (1% and 2%) of WKO as co-digestion feedstock can be an effective way to increase CH4 yield for beef operation anaerobic digestion, especially when there are available feedstock nearby. Keywords: Anaerobic digestion, Biogas, Methane, Semi-continuous digesters.

Influence of palm oil mill effluent as inoculum on anaerobic digestion of cattle manure for biogas production

2013 ◽  
Vol 141 ◽  
pp. 174-176 ◽  
Author(s):  
Mohammed Saidu ◽  
Ali Yuzir ◽  
Mohd Razman Salim ◽  
Salmiati ◽  
Shamila Azman ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Palm Oil ◽  
Biogas Production ◽  
Cattle Manure ◽  
Palm Oil Mill Effluent ◽  
Palm Oil Mill

Biological pre-treated oil palm mesocarp fibre with cattle manure for biogas production by anaerobic digestion during acclimatization phase

2014 ◽  
Vol 95 ◽  
pp. 189-194 ◽  
Author(s):  
Mohammed Saidu ◽  
Ali Yuzir ◽  
Mohd Razman Salim ◽  
Salmiati ◽  
Shamila Azman ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Oil Palm ◽  
Biogas Production ◽  
Cattle Manure

scholarly journals Substrate-induced pH changes and process stability of anaerobic digestion of shea waste

2021 ◽  
Vol 24 (12) ◽  
pp. 2035-2042
Author(s):  
Martin Ampadu Ofosu ◽  
Melvin-Guy Adonadaga ◽  
Isaac Sackey ◽  
Boateng Ampadu
Keyword(s):  
Anaerobic Digestion ◽  
Volatile Fatty Acids ◽  
Environmental Concern ◽  
Biogas Production ◽  
Cattle Manure ◽  
Shea Butter ◽  
Cattle Dung ◽  
Process Stability ◽  
Alternative Source ◽  
Ph Changes

Shea butter extraction involves the generation of waste of environmental concern. To help find a solution to the management of this waste, and to search for an alternative source of energy, this study was carried out to investigate the potential of shea waste in generating methane gas through anaerobic digestion. At high concentrations, volatile fatty acids produce a low pH, which may inhibit hydrolysis, thereby affecting the stability of the anaerobic digestion process. The influence of pH changes on process stability (or otherwise) was also investigated. The study involved two fermentation processes: mono-fermentation and co-fermentation involving a mix of shea waste and cattle dung. The mono-fermentation investigations comprised six treatments - three organic dry matter concentrations of 7%, 5% and 3%, combined with two hydraulic retention times of 30 and 60 days. The co-fermentation investigations comprised three treatments of shea waste and cattle manure mix in proportions (by volume) of 50:50, 75:25 and 90:10. The results showed that changes in pH were a good parameter for indicating process instability. The results also showed that monofermentation of shea waste was not a viable option in anaerobic digestion for biogas production, whilst only the substrate with 50% cattle manure in the co-fermentation trials showed process stability, producing biogas with adequate methane content.

Impact of iron nanoparticles on biogas production and effluent chemical composition from anaerobic digestion of cattle manure

2020 ◽  
Author(s):  
Taha Abdelfattah Mohammed Abdelwahab ◽  
Mahendra Kumar Mohanty ◽  
Pradeepta Kumar Sahoo ◽  
Debaraj Behera
Keyword(s):  
Anaerobic Digestion ◽  
Chemical Composition ◽  
Iron Nanoparticles ◽  
Biogas Production ◽  
Cattle Manure
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