Characterization and Potential Recovery of Household Solid Waste in the City of Ouagadougou (Burkina Faso)

Abstract

This study on physical and physicochemical characteristics of household solid waste (HSW) in the city of Ouagadougou by using MODECOM, "Method of Characterization of Household waste" was done fifteen (15) years after the first study. Special attention has been paid to waste sampled and also to estimate energy content, namely the higher heating value (HHV) and the lower heating value (LHV). As a general tendency, the results showed a sensitive evolution in the physical parameters of waste (composition by size and composition by category) and also in the physicochemical parameters (moisture content and energy content). The results of HSW composition study showed that regardless the seasons, fermentable fraction is dominant (39% in the rainy season and 20% in the dry season) followed by plastics (18% in the rainy season and 20% in the dry season). The moisture content is measured to be 56.69% and 37.69% respectively in the rainy season and dry season. The results analysis of the potential of recovery showed that the organic recovery is more important (60% in the rainy season and 55% in the dry season) than the matter recovery (43% in the rainy season and 46% in the dry season). These results highlight the need for organic recovery and matter recovery of HSW in the city of Ouagadougou. The results from the analysis of the energy content showed that the HHV is estimated to be 17.94 MJ/kg in the rainy season and 17.96 MJ/kg in the dry season. The LHV is calculated to be 6.38 MJ/kg in the rainy season and 10.27 MJ/kg in the dry season. These results suggest that incineration as treatment of HSW in the city of Ouagadougou is not economically an appropriate option.

Urban Solid Waste Transportation, Composting, Recycling, and Landfill Issues in Subsaharian Africa Cities

“…Paper and cardboard constitute 3% and corroborate the same value found by Nshimirimana (2010). Haro et al (2018) found a 6.4% fraction of paper/cardboard in household waste.…”

“…These outcomes are confirmed by different authors who have worked on waste characterization in Ouagadougou. Indeed, their results show that organic waste fraction ranging from 20 to 40% (Tezanou, 2003, Mien, 2009, Nshimirimana, 2010, Ouédraogo, 2010, Haro et al, 2018. Inert materials (rubble and stones) represent 27%, and fines materials 10%.…”

Quantification and Characterization of Solid Waste in Alkalakla Administrative Unit, Khartoum State-Sudan

“…Daily human activities always generated solid waste, which became serious public health problems with poor management [1][2][3][4]. Solid waste materials are a nuisance and may cause adverse impacts in human health and the environment [5][6][7].…”

“…Data on waste composition, production, and recycling are essential for designing routes of collection systems, determining placements for bins, managing collection crews, and select appropriate solid waste disposal options [5,[21][22][23][24][25], and it's crucial if alternative waste management schemes should be developed, for example if material recycling or biological treatment should be considered [26]. Several studies on characterization of solid waste were conducted in developing countries particular sub-Saharan Africa to determine their physical, chemical and thermal properties [27]; however accurate and updated data regarding solid waste are not available in most Sudanese cities and towns due to lacking of technical and financial resources.…”

Evaluation de l’empreinte carbone d’une Installation de Stockage des Déchets Non Dangereux (ISDND) : Cas du centre traitement et de valorisation des déchets (CTVD) sis à Polesgo (Ouagadougou)

“…téqCO2 depuis l'ouverture du CTVD de Polesgo en 2005. Cette importante contribution à l'effet de serre s'explique d'une part par la forte teneur en matière organique des déchets enfouis au CTVD de Polesgo(Haro et al, 2018) et les conditions…”