scholarly journals Evaluation of Biogas Production from the Co-Digestion of Banana Fruit Peels and Poultry Manure

2020 ◽  
Keyword(s):  
Biogas Production ◽  
Poultry Manure ◽  
Banana Fruit

scholarly journals Pretreatment of Animal Manure Biomass to Improve Biogas Production: A Review

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3573 ◽  
Author(s):  
Meneses-Quelal Orlando ◽  
Velázquez-Martí Borja
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Biogas Production ◽  
Poultry Manure ◽  
Animal Manure ◽  
Methane Yield ◽  
Operational Parameters ◽  
Advantages And Disadvantages ◽  
Physical Chemical ◽  
Chemical Pretreatments

The objective of this research is to present a review of the current technologies and pretreatments used in the fermentation of cow, pig and poultry manure. Pretreatment techniques were classified into physical, chemical, physicochemical, and biological groups. Various aspects of these different pretreatment approaches are discussed in this review. The advantages and disadvantages of its applicability are highlighted since the effects of pretreatments are complex and generally depend on the characteristics of the animal manure and the operational parameters. Biological pretreatments were shown to improve methane production from animal manure by 74%, chemical pretreatments by 45%, heat pretreatments by 41% and physical pretreatments by 30%. In general, pretreatments improve anaerobic digestion of the lignocellulosic content of animal manure and, therefore, increase methane yield.

scholarly journals Performance of Anaerobic Digestion of Chicken Manure Under Gradually Elevated Organic Loading Rates

2019 ◽  
Vol 16 (12) ◽  
pp. 2239 ◽  
Author(s):  
Fei Wang ◽  
Mengfu Pei ◽  
Ling Qiu ◽  
Yiqing Yao ◽  
Congguang Zhang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Poultry Manure ◽  
Ammonia Nitrogen ◽  
Methane Content ◽  
Chicken Manure ◽  
Continuous Stirred Tank Reactor ◽  
Organic Loading ◽  
Biogas Yield ◽  
Loading Rates

Poultry manure is the main source of agricultural and rural non-point source pollution, and its effective disposal through anaerobic digestion (AD) is of great significance; meanwhile, the high nitrogen content of chicken manure makes it a typical feedstock for anaerobic digestion. The performance of chicken-manure-based AD at gradient organic loading rates (OLRs) in a continuous stirred tank reactor (CSTR) was investigated herein. The whole AD process was divided into five stages according to different OLRs, and it lasted for 150 days. The results showed that the biogas yield increased with increasing OLR, which was based on the volatile solids (VS), before reaching up to 11.5 g VS/(L·d), while the methane content was kept relatively stable and maintained at approximately 60%. However, when the VS was further increased to 11.5 g VS/(L·d), the total ammonia nitrogen (TAN), pH, and alkalinity (CaCO3) rose to 2560 mg·L−1, 8.2, and 15,000 mg·L−1, respectively, while the volumetric biogas production rate (VBPR), methane content, and VS removal efficiency decreased to 0.30 L·(L·d)−1, 45%, and 40%, respectively. Therefore, the AD performance immediately deteriorated and ammonia inhibition occurred. Further analysis demonstrated that the microbial biomass yield and concentrations dropped dramatically in this period. These results indicated that the AD stayed steady when the OLR was lower than 11.5 g VS/(L·d); this also provides valuable information for improving the efficiency and stability of AD of a nitrogen-rich substrate.

OPTIMIZATION OF BIOGAS PRODUCTION FROM POULTRY MANURE WASTEWATER IN 250 ML FLASKS

2015 ◽  
Vol 75 (1) ◽  
Author(s):  
Choo Wei Chun ◽  
Nina Farhana Mohd Jamaludin ◽  
Norazwina Zainol
Keyword(s):  
Reaction Time ◽  
Biogas Production ◽  
Production Condition ◽  
Poultry Manure ◽  
Oxygen Demand ◽  
Production Performance ◽  
Quadratic Model ◽  
Biogas Yield ◽  
Predicted Values ◽  
Central Composite

A research was conducted on anaerobic digestion from poultry manure wastewater to produce biogas. This research was considered as a triumph to the concept of waste-to-wealth. The poultry manure collected was characterized and pre-treated to remove excessive ammonia-N which caused inhibition to the biogas production. Central Composite Design (CCD) with five replicates at centre points was used to investigate the simultaneous effect of the variables: agitation (110-130 rpm) and reaction time (2-4 days) on the biogas production. Then, the experiment was designed and analyzed using Design Expert V7.0 software by applying response surface methodology (RSM) concept.The biogas production performance was evaluated on the basis of biogas yield from initial Chemical Oxygen Demand (COD) and was found ranged from 0.49 to 4.37 mL/g COD. Quadratic model was well fitted (R-squared>0.80) with a confidence level higher than 95 %. The optimum biogas production condition was at agitation: 120 rpm and reaction time: 3.3 days. Under this condition, 4.45 mL/g COD of biogas yield was obtained. This counted for 5.82% error from predicted values.

scholarly journals Influence of Aerobic Pretreatment of Poultry Manure on the Biogas Production Process

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1109
Author(s):  
Mantas Rubežius ◽  
Kęstutis Venslauskas ◽  
Kęstutis Navickas ◽  
Rolandas Bleizgys
Keyword(s):  
Production Process ◽  
Biogas Production ◽  
Organic Matter Content ◽  
Poultry Manure ◽  
Treatment Method ◽  
Matter Content ◽  
Control Group ◽  
Biogas Yield ◽  
High Concentrations ◽  
Positive Effect

Anaerobic digestion of poultry manure is a potentially-sustainable means of stabilizing this waste while generating biogas. However, technical, and environmental protection challenges remain, including high concentrations of ammonia, low C/N ratios, limited digestibility of bedding, and questions about transformation of nutrients during digestion. This study evaluated the effect of primary biological treatment of poultry manure on the biogas production process and reduction of ammonia emissions. Biogas yield from organic matter content in the aerobic pretreatment groups was 13.96% higher than that of the control group. Biogas production analysis showed that aerobic pretreatment of poultry manure has a positive effect on biogas composition; methane concentration increases by 6.94–7.97% after pretreatment. In comparison with the control group, NH3 emissions after aerobic pretreatment decreased from 3.37% (aerobic pretreatment without biological additives) to 33.89% (aerobic pretreatment with biological additives), depending on treatment method.

Screening of Factors Affecting Pre-Treatment by Ammonia-N Removal from Poultry Manure Wastewater by Using Soil Water to Improve Biogas Production

2015 ◽  
Vol 1107 ◽  
pp. 359-364
Author(s):  
Nina Farhana Mohd Jamaludin ◽  
Norazwina Zainol
Keyword(s):  
Reaction Time ◽  
Soil Water ◽  
Treatment Condition ◽  
Biogas Production ◽  
Peat Soil ◽  
Poultry Manure ◽  
Factors Affecting ◽  
Biogas Yield ◽  
N Removal ◽  
Pre Treatment

In this study, best pre-treatment condition of poultry manure wastewater (PMW) was determined from factorial analysis for the purpose of improving biogas production. Five factors were chosen for factorial screening namely: agitation (0 or 200 rpm), reaction time (2 to 5 hours), type of soil (peat soil or poultry farm soil), soil to water ratio (1:1 or 1:4) and PMW to soil water (SW) ratio (1:4 or 2:3). Based on the result, agitation gave highest contribution in pre-treatment of PMW at 38.36% followed by PMW to SW ratio at 29.76% contribution. In term of interaction, agitation and reaction gave the highest contribution to pre-treatment of PMW at 3.33% contribution. The best pre-treatment condition suggested by Design Expert software was using peat soil as source of soil at SW ratio of 1:6, and mixed with PMW at 1:4 ratio without agitation for 5 hours reaction time. Application of this best pre-treatment condition showed improvement in biogas yield by 82 % from 0.0045 L/g COD using untreated PMW to 0.0248 L/g COD using treated PMW.

scholarly journals Biogas from Different Parts of a Banana Plant: A Case Study of the Banana Plant from Kisii County

2020 ◽  
pp. 1-10
Author(s):  
Benard Obuya ◽  
Sebastian Waita ◽  
Calford Otieno
Keyword(s):  
Biogas Production ◽  
Total Solid ◽  
The Other ◽  
Energy Calculation ◽  
Banana Fruit ◽  
Banana Plant ◽  
Daily Production ◽  
Multi Stage ◽  
Banana Leaves ◽  
Different Parts

Bananas are the main source of stable food among the Kisii people in Kenya. Apart from the banana fruit, the other parts are usually thrown to waste although can be used in a useful manner like to generate biogas. This research sought to investigate biogas production potential from different parts of a banana plant in Kisii County, Kenya. In the study, 2 kg of banana leaves, pseudo-stem, fruit bunch stalk (FBS) and peels were collected as feed-stocks for a laboratory-scale anaerobic digester to produce biogas. The experiment was carried out in a multi-stage anaerobic digestion system operated under mesophilic temperature (30-35°C). Various process parameters were measured including total solid, volatile solid and volume of biogas produced. After completion of 21-day digestion at an average temperature of 33°C, specific Biogas yields reached were about 16.5 litres/kg (leaves), 13.5 litres/kg (pseudo-stem), 12.7 litres/kg (fruit bunch stalk) and 15.1 litres/kg (peels). The optimum daily production of biogas was between the 13th-15th day. Cumulatively, it was observed that after the 15th day, almost all of the biogas had been released from the digester. By doing a simple computation based on energy calculation, it was found that 61% of the energy expected from a similar quantity by other researchers. The study showed that banana leaves have highest potential for biogas as compared to the other parts.

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