Joel Tize Koda

University of Maroua · Renewable Energies

In Sahelian cities, desertification with its climatic corollary is due to the excessive use of firewood by increasingly growing populations. However, the dead biomasses of Azadirachta indica swept away from households and unnecessarily buried in urban waste dumps could be recycled into ecological charcoal. But, it is necessary to know the binder be...

The management of invasive plants such as Eichhornia crassipes and the fruits of Azadirachta indica on the banks of the waters of Lake Chad in the Far North of Cameroon remains a challenge to overcome. On the other hand, given the urgency of finding other sources of energy following the scarcity of fossil fuels, it becomes appropriate to turn to re...

Eichhornia crassipes is an invasive plant in the waters of Lake Chad. The ecological problems caused by its permanent and invasive presence lead to search solutions. Thus its valuation as cooking energy is an option whose objective is to assert the effect of production processes of ecological coal based on Eichhornia crassipes on their performance...

The objective of this article aims to reduce indoor air pollution through the use of ecological fire starter (EFS) made from sawdust and vegetable oils. In the Far North region of Cameroon, plastic waste is used to ignite and stoke solid fuels fires, exposing mainly women and children who are responsible for cooking to health risks from indoor air...

Biogas production in the Sahelian zone faces the problem of water shortage. This is one of the biggest obstacles encountered by projects to substitute firewood by biogas in this areas. The study aims to improve the accessibility of households to biogas in water shortage conditions by recycling the filtrate of the digestate into a new dilution of th...

The objective of this article was to assess the level of substitution of wood fuel with briquettes in Minawao refugees’ camp. The chosen methodology combines survey tools for data collection and practice. The results show that the refugees need 18,339 tons of wood fuel that must be substituted by 19,654 tons of biomass briquettes per year. Thus, si...

The objective of this paper was to determine the effects of binders on the physical and energetic properties of briquettes as well as their accessibility. Proximate analysis and investigation on binder cost on local market were conducted. The results show that the addition of binder increases the durability and density, but decreases the LHV of bri...

Wood for smoking fish is increasingly rare in the locality of Maga where this activity is practiced intensely. The search for firewood to prepare meals and smoke fish has led to immense deforestation in the area. There is an urgent need to find alternative sources of this fuel. The objective of this work is to construct a fish smoking kiln operatin...

Biogas is an ideal fuel for sustainable energy and an alternative to wood energy in sub-Saharan Africa. Its valorisation in rural areas is limited to cooking despite its enormous potential for electricity production. However, the inaccessibility of biogas analyzers to assess the quality of biogas and trigger its use in an engine is one of the main...

Biogas production in the Sahelian zone faces the problem of water shortage during the dry season. This study was initiated in the bioscience laboratory at the University of Maroua with the objective of improving the accessibility of households to biogas in water scarcity conditions. Also another aim is to recycle the filtrate of the digestate into...

In general, the Far North Region of Cameroon and specifically the town of Maroua is faced a great scarcity of firewood which is the major energy sources of cooking used by the population. Its semi desert environment cannot supply the demanded quantity that combustible. This situation is a challenge for research in order to find out other sources of...

ABSTRACT This article aims to assess the potential production of ecological charcoal (briquette) which is a combustible made from the agricultural residues, Agro-industrial and household waste in substitution of wood fuel in Far North Region of Cameroon. Fragile ecosystems of the Region incur in recent years a strong combined pressure by the local...

L’étude analyse le système de commercialisation des plantes fourragères en zone soudanosahélienne camerounaise, une activité financièrement rentable. Or, leur prélèvement non contrôlé, surtout sur des ligneux, entraine la perte de la biodiversité. Pour ce faire, des enquêtes par méthode aléatoire simple ont été menées à Maroua et Guider auprès de 1...

This work deals with the energy recovery of paper waste for the production of a domestic fuel (white coal). In the city of Maroua, paper waste produced in large quantities is not recycled and most often burned in an opened area. However, this has a high calorific value. The aim is to produce a fuel made of paper and clay used as a binder. For this...

Dead leaves of neem trees in the Sahelian urban zone are among the wastes that are underutilized, since it is either buried or burnt, and thus, contribute to increased environmental pollution. Unfortunately, the lack of information on the biomass and energy potentials of these wastes empedes any initiative for its industrial biomethanization. This...

The potentials of dead neem leaves for the production of the biogas was investigated as key measure to reduce the deforestation mainly caused by firewood cuttings in the Far-North Cameroon. Biomass collected was allowed to undergo biological pretreatment to facilitate its hydrolysis during anaerobic co-digestion with the cow dung. Samplings of dead...

To favor a better accessibility to biogas, it becomes indispensable to find new substrates of production having little or no negative influence on food security. It is the objective of this work which aims at valorizing dead neem leaves assimilated to waste. These leaves have undergone three treatments and mixed at different proportions to cow dung...