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E3 Journal of Environmental Research and Management

E3 Journal of Environmental Research and Management Vol. 4 (11) pp. 0368-0378, December 2013; © E3 Journals; ISSN 2141-7466

Characterization of the household solid waste of the municipality of Abomey-Calavi in Benin

Yemadje Alda A. S 1 * , Edorh Patrick A 1 , Aina Martin P 1 , Gnandi Kissao 1 , Christophe S. Houssou 1 , Michel Boko 1 , Ulbad Polycarpe Tougan 1
1 Interfaculty Centre of Training and Research in Environment for Sustainable Development (CIFRED),University of Abomey-Calavi (UAC), 03 BP 1463, Jéricho, Cotonou.
2 Laboratory of Science and Technology of Water (LSTE), Polytechnique School of Abomey-Calavi, University of Abomey-Calavi (UAC),01 BP 2009 , Abomey-Calavi, Benin.
3 Laboratory Management, Treatment and Recovery of Waste (GTVD) Department of Chemistry, University of Lome, Togo.
4 Laboratoire Study of Climates, Water Resources of the dynamics of ecosystems,University of Abomey-Calavi, (UAC), BP: 1338, Abomey-Calavi, Benin.
5 Department of Animal Production and Health, Polytechnic School of Abomey-Calavi, 01 BP 2009,Cotonou, Republic of Benin.
*Corresponding Author E-mail: yemsena@yahoo.fr
Accepted 6 December 2013

Abstract

Ever since the 1980-s the Municipality of Abomey-Calavi has known a strong population growth. This fast growth of its population engendered a number of problems in the field of management of household solid waste. This is proven by an increase accelerated by the production of this waste, the rarity of the free spaces and the absence of sites for final discharges of waste. From then on the study on the characterization of household solid waste of the municipality has become essential to put the bases for an effective management policy of this waste.We conducted a descriptive and analytical study. The method of sampling was of systematic random sampling. The size of the household sample was determined according to the daily average production of waste by household and by sector. The weight of waste to be sorted out was defined according to the standard recommended by MODECOM. The data collected were analyzed with the software SAS (Statistical Analysis System, 2006).The results from the characterization of the household solid waste showed that the waste production and the waste traits depend significantly on the sector of production and the season. The households of the municipality of Abomey-Calavi produce on average 0.71kg / inhabitant / day. The sorting was carried out on thirteen (13) categories recommended by the standard MODECOM. However some of them such as sanitary textiles, glass and sometimes hazardous waste are absent in rural areas. The most important categories of households waste in the municipality of Abomey-Calavi were in order: highly fine waste (70.57 %) the fine waste (14.38 %), putrescibles (10.18 %) and plastics (1.58 %).The study on the characterization of municipality waste also revealed it has a density of 0.36, average moisture of 16.13 % during the dry season and of 21.66 % during the rainy season, a calorific value lower than 1224.74kcal / kg and a C/N ratio which mostly varies between 8 and 9. From these results, the dumping processing coupled with the valuation of waste through recycling and composting would be the most adapted to the municipality of Abomey-Calavi for an effective and sustainable management of the household solid waste.

Keywords: Abomey-Calavi, characterization, household solid waste, waste management.

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