Methane production from mesophilic fed-batch anaerobic digestion of empty fruit bunch of palm tree

Effect of Alkali-NaOH Pretreatment on Methane Production from Anaerobic Digestion of Date Palm Waste

“…The fail in biodegradability in the 30% (w/w) pretreatment may be caused by the inhibition problem with a high concentration of NaOH. From a previous study of producing methane from DPEFB, the theoretical biodegradability was 28.13% (Lahboubi et al, 2020). From these results, the pretreatment with low NaOH concentrations up to 18% improves the biodegradability.…”

“…These VS can degrade with anaerobic bacteria to produce a significant amount of biogas, depending on the biodegradability of the substrate and process conditions. The hemicellulose, cellulose and lignin content of the raw substrate were 9.5, 16 and 9.4%, respectively (Lahboubi et al, 2020). The theoretical biogas and methane yield of the raw substrate are: 794 and 405 mL/gVS (Lahboubi et al, 2021a).…”

“…Few studies on producing biogas from date palm waste were discussed in the literature. In a recent study, the experimental methane yield from date palm empty fruit bunch (DPEFB) using continuous stirred tank reactor (CSTR) under mesophilic conditions was 118.5 NmL/gVS with a biodegradability of 39% (Lahboubi et al, 2020). Nevertheless, the production of biogas or methane can be improved by increasing the solubility of organic matter during the anaerobic digestion process (Wong et al, 2018).…”

Effect of Thermal Pretreatment on the Kinetic Parameters of Anaerobic Digestion from Recycled Pulp and Paper Sludge

“…In this regard, the power of mathematical models is always evident in predicting performance under various operating conditions and different pre-treatment technologies [Mejdoub and Ksibi, 2015]. The application of kinetic modeling in the prediction of methane production using anaerobic digestion becomes more famous in literature [Beniche et al, 2020;El Gnaoui et al, 2020;Karouach et al, 2021;Lahboubi et al, 2020]. The kinetic models are used to describe the microorganism behavior under physical and chemical condition [Zwietering et al, 1990].…”

“…The kinetic equation had been modified so that the mathematical parameters have biological meaning. The Gompertz equation was established to predict the bacterial growth rate, unless this equation contained mathematical parameters which did not have biological meaning [Lahboubi et al, 2020;Syaichurrozi et al, 2013]. Zwietering et al had written the Gompertz equation in order to switch the mathematical to biological parameters [Zwietering et al, 1990].…”