Abstract:
This final study is an experimental study of the anaerobic digestion of date palm
kernels (Substrate) with sewage sludge (Inoculum 1) and cattle manure (Inoculum 2) in
the mesophilic phase. The primary objective is to energetically use the substrate to
produce biogas.
The experiments were carried out in the laboratory and focused on the effect of codigestion, ratios (Inoculum/Substrate). Mechanical pretreatments (sieving and
ultrasound (10.15.20 min exposure) from the point of view of biogas and bio methane
yield.
Based on the experiments carried out, the optimum quantities of substrate that results
into maximum quantities of biogas production. The 1/3 ratio gave better results in
terms of the cumulative amount of biogas and bio methane compared to the two other
ratios studied (2/3 and 1/2).
The results of the two pretreatment methods showed that pretreatment by sieving gave
a better yield in biogas and bio-methane compared to ultrasonic pretreatment, the
former gave a biogas accumulation of biogas and bio-methane of 100 ml of 63 ml
respectively , while the latter yieldeda combined biogas and bio-methane of 66 mL 30
mL ( for 20 min).
