Algerian Journal of Engineering Research
Volume 5, Numéro 1, Pages 18-28
2021-09-22
The Best Process From Energy Recovery Of The Waste Kitchen University Restaurants
Authors : Bencheikh Lehocine Mossaab . Zamouche-zerdazi Rania . Achouri Ouafa . Boutraa Meriem . Meniai Abd Salem Hacen . Chaibi Nabila . Bounakja Hadjer .
Abstract
This work is part of the perspective of sustainable development and within the framework of the eco-campus project, which avoids the use of energy-intensive treatment processes and is oriented towards extensive rustic processes, we examined the anaerobic treatment process of waste from restaurants of Saleh Boubnider Constantine 03 University residences, which generates 737.44 tons of kitchen waste with current student capacity. The primary objective of this study is to manage this waste, through the use of anaerobic digestion. The biodegradation of crushed kitchen waste was assessed by two routes: anaerobic using the Biochemical Methane Potential test and aerobic using respirometric tests, several parameters to cite the digestion conditions (thermophilic and mesophilic), the Inoculum substrate report were carried out (from 0.5 to 4), as well as the possibility of considering adding paper recovered from waste from the same university to stimulate the system. The maximum production of methane is obtained for an optimal I / S ratio of 0.5, allowing an energy recovery of 112 mL. g TVS-1and 416 mL. g TVS-1 of methane for mesophilic and thermophilic respectively, a production which experienced a marked improvement reaching 106.97 and 215.30% after adjustment of pH by adding paper for I / S equal to 3.5 and 4 respectively
Keywords
Biodegradability ; Anaerobic Digestion ; Respirometry ; Kitchen Waste ; Methanogenic Potential
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