MODELING OF SYSTEM FOR THE PRODUCTION OF ELECTRIC ENERGY FROM HOUSEHOLD WASTE Marsil HAMIDI, Nadia MACHKOUR, Mourad ZEGRARI, Abdelhafid AITELMAHJOUB Hamidimarsil9@gmail.com , nadia.machkour@gmail.com , mouradzegrari@yahoo.fr , aitelmahjoub@gmail.com Laboratory Structure Engineering, Intelligent Systems & Electrical Energy, ENSAM Casablanca, Hassan II University of Casablanca, Avenue Nile, 20000, Casablanca, Morocco. Abstract The pollution of water, air and soil by industrial, agricultural and household waste is evolving day by day. This is pushing governments and industries to seek technological solutions that enable cost-effective and efficient waste treatment. One of the technologies allowing the treatment of the organic fraction of this waste is anaerobic digestion (biomethanisation), which consists of a biological degradation, in the absence of oxygen, of the organic matter into a mixture of methane (CH 4 ) and dioxide of carbon (CO 2 ) called 'biogas'. Anaerobic digestion (AD) is a delicate complex process involving several bacterial groups. The optimization of the DA and the evaluation of its functioning according to the different conditions of supply or of operation are important objectives and can be reached at best using appropriate digestion models. In fact, modeling is the best way to control the development and validation of the process of anaerobic digestion (Appels et al., 2008) (1). This work presents a bibliographic study on the mathematical models of DA, and the simulation of anaerobic batch bioreactors. The study focuses on the production of methane using concentrated organic matter, which consists of household waste. A mathematical model corresponding to the biotechnological two-phase mechanization process (2; 3) ‘’ will be implemented using Aquasim 2.00 to simulate the bioreactor. ‘’Some parameters of the model were estimated by an extensive bibliographic study. The results of the simulation make it possible to apprehend the degradation of the substrate, the growth of the bacteria, as well as the production of methane.’’ Keywords- Bioreactor modeling, Mechanization, Anaerobic digestion. I. Introduction Biomass is recognized as a fuel and ranks fourth as an energy resource providing about 14% of global energy needs (4). Biomass accounts for up to 67% of total energy consumption in Africa (5). Most of the energy consumption of biomass in Africa is in sub-Saharan Africa. More than 76% of the country's population depends on biomass as an energy vector (5). The limitation of fossil fuel resources and the problems associated with their combustion have led to extensive research on new and renewable energies (6). The problem of burning fossil fuels has been the release of toxic compounds and oxides of nitrogen and sulfur into the atmosphere. The effects of these air pollutants are well documented. However, the threat of global warming due to increasing concentrations of carbon dioxide and other higher atmospheric pollutants resulting from anthropogenic activities is the biggest concern (7). In response to the concerns expressed above, the world has focused on renewable energy and related conversion technologies over the past two decades. Solar, wind, hydro and biomass resources are among the renewable energy resources that have attracted attention. The biomass has been attractive on the principle that it can be converted into a variety of forms of energy such as heat, steam, electricity, hydrogen, biogas, ethanol and methanol (7). Several modern technologies have been developed to convert biomass into bioenergy. Anaerobic digestion is a mature energy technology for converting biomass into biogas, a renewable primary energy source. Biogas is a robust fuel that can be used to provide heat, electricity, process steam and methanol. However, anaerobic digestion is not optimally used as a biomass technology.