This work, concerns determination of energy potentials of three types of food waste in the Ivory Coast. The method used consists in carrying out a physical and chemical analysis of three types of waste, namely cocoa shell, sugar cane bagasse and oil palm seed fibers. The study of five (5) parameters show the energy potential of the three wastes. This is made possible by the knowledge of dry volatile matter (%MVS greater than 97%), total organic carbon (% COT about 57%) and dry matter (%MS between 17% and 79%), ash content (%K between 2.65% and 11.4%) and humidity (%TH between 20% and 83%).It appears from this study that these wastes have energy potentials with the lower calorific value (PCI greater than 18 MJ / kg). These data are very interesting and indicate that these wastes are recoverable by combustion or methanation. However, the humidity level is very high for two of them, notably cocoa shell and sugar cane bagasse (83% and 70% respectively). The difference between PCS and PCI shows that it will be necessary to pre-dry these wastes before combustion.

The latest analysis realized by the Anti-Pollution Center (CIAPOL) of Côte d'Ivoire in March 2017, reveals that the liquid effluents resulting from the processing of palm oil fruits in the industrial process of palm oil that is studied in this work are, highly charge in organic matter (COD are between 60 000 mg/l to 90 000 mg/l; and there BOD 5 are situated between 15 000 mg/l to 30 000 mg/l for a volume of 0.7 m 3 / T). This is not in accordance with ISO environmental protection requirement and the decree N° 01164-MINEF-CIAPOL-SDIID of 04/11/2008 which recommend a decrease of their BOD 5 from 30 000 mg/l to 3000 mg/l by treating liquid effluents in an effective anaerobic device with an recuperation and valorization (combustion in an biogas engine witch produce electricity) of methane that these liquid effluents contain. Doing so, this methane will not be rejected in the atmosphere. In the second hand by a final treatment of degraded effluents through the irrigation system of industrial plantations. It should be noted that for the case studied here, the average tonnage of production of Palm Oil fruit bunches is 200000 tons per year. This transformation of palm oil fruits will produce about 140 000 m 3 of liquid wastes per year. Base on laboratory experiences, the conclusion is that, 1m 3 of waste can produce 32 Nm 3 of biogas. Knowing that 1 Nm 3 of biogas equal 5000 kcal which equal 5.81 kWh, in consequence a 17 GWh producible of electricity per year is expected. The generated electricity can supplement all external energy power supplies to the plants and provide needed energy to all villages around. The project will allow the industrial process to reduce their energy cost as well as protecting the environment around. The work done here will be beneficial for the industrial process because it will allow on one hand to save energy and on the other hand to produce fertilizer for palm oil fields.