Evaluation of biogas production from co-digestion of pig dung, water hyacinth and poultry droppings

Abstract

In this study, biogas production from co-digestion of pig dung, water hyacinth, and poultry droppings was investigated. 500 ml bio-digesters were connected in series and water displacement method was used to estimate the amount of biogas produced. The ratio of the percentage weight distribution of pig dung to water hyacinth to poultry dropping was varied as: (0:40:60), (30:40:30), (15:40:45), (45:40:15), and (60:40:0) in digesters A1, B2, C3, D4 and E5, respectively. The highest biogas cumulative yield of 307 cm 3 CH 4 /g was obtained in Digester C3. The gas chromatography analysis showed 22.50 wt% (CO 2 ), 64.92 wt% (CH 4 ) and 4.83 wt% (N 2 ) which implied that the biogas produced can be used for cooking and heating of homes in rural and urban communities.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Current Status and Future Prospects of Small-Scale Household Biodigesters in Sub-Saharan Africa

“…Co-digestion is referred to as anaerobic treatment, digesting a homogenous combination of two or more different feedstock types simultaneously in order to stabilize the process and optimize biogas production (e.g., animal slurries and organic wastes from food industries) [22,63,64]. The utilization of codigestion practice regularly enhances the biogas yields from anaerobic conditions as a result of positive synergisms established in the digestion medium and the contribution of lost nutrients by the cosubstrates [45].…”

“…Fortunately, codigestion can utilize the nutrients in various wastes and balance the bacterial community to optimize digestion performance [67]. In the AD process, the advantages of co-digestion are summarized as follows: selectively improving the biological and nutrient environment in the digester, better digestibility, enhancement of the process stability, an increase of nutrients; enhanced biogas production and the methane yield, achievement of better handling of the waste, a mixture of various waste streams that have varied characteristics in one treatment facility, and is key to improving waste management and sanitation [63,64]. Thus, to improve either the quality of biogas or to maximize gas yield, further research is needed to identify suitable cofeedstock.…”

Potential of Recalcitrant Effluent to Generate Biogas by Up-flow Anaerobic Sludge Blanket and Mechanical Vapour Recompression (MVR) -A Case Study

“…The advantage of the process is that a high active yeast cell density initiates the fermentation rapidly and the alcohol yield is also much higher compared to the batch process (Salehin and Ahmed et al, 2021). The biostill process is one of the commercial continuous processes, in which the molasses ow rate to the fermenter is controlled at a constant ow rate to maintain the sugar and alcohol concentrations in the broth at 0.2% (w/v) or lower and 6-7% (v/v) respectively (Okewale and Adesina et al, 2019). Only about 10% of molasses are utilized in the processes and the major remaining part ends as e uent in the process (Srivastava et al, 2020).…”

Stimulating Methane Production from Poultry Manure Digest with Sewage Sludge and Organic Waste by Thermal Pretreatment and Adding Iron or Sodium Hydroxide

“…An alternative strategy to improve biogas production efficiency is adding co-substrates into the digestion broth [6,7]. Poultry manure has been co-digested with a wide range of waste types, including lignocellulosic biomass [8], kitchen waste [9], sugar mill press mud [10], wine vinasse [11], sewage sludge [12][13][14], water hyacinth [15], sheep manure [16], etc. Co-digestion (AcD) not only boosts biogas output but also facilitates the dilution of harmful substances, reduces the operational expenses, and enhances the C/N balance, thereby increasing the appeal of this approach [17][18][19].…”