Modeling anaerobic co-digestion of water hyacinth with ruminal slaughterhouse waste for first order, modified gompertz and logistic kinetic models
نویسندگان
چکیده
Water hyacinth (Eichhornia crassipes), an invasive aquatic weed with large biomass production is of socio-economic and environmental concern in fresh water bodies such as the Lake Victoria East Africa. Efforts towards its control removal can be complemented by biogas for use energy source. The co-digestion (WH) ruminal slaughterhouse waste (RSW) has potential to improve from WH through collation processes parameters C/N C/P ratios, potassium concentration buffering capacity. Knowledge optimum proportion RSW minor substrate both process operational importance. Moreover, efficient operation requires understanding relationship between parameters. Kinetic models useful tools describing batch reactors. While first order kinetics assume that rate proportional remaining substrates, other modified Gompertz Logistic incorporate lag phase, a key feature anaerobic digestion process. This study aimed establish under mesophilic conditions, apply describe production. conducted 0, 10, 20 30% proportions at temperature 32ºC. Co-digestion improved yield 113% 19.15 40.85 CH4 ml/(gVS) 50 days co-digestion. It also exhibited most stable daily largest yield. biomethanation data were fitted kinetics, models. Biogas was best described modified model potential, Mo, 43.2 ml (gVS)-1d-1; maximum rate, Rm, 1.50 duration lag, λ, 3.89 d.
منابع مشابه
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ژورنال
عنوان ژورنال: International Journal of Renewable Energy Development
سال: 2023
ISSN: ['2252-4940']
DOI: https://doi.org/10.14710/ijred.2023.52775