| Titre |
Characterization of Household Solid Waste in the Town of Abomey—Calavi in Benin |
| Auteurs |
TOPANOU Nikita [1],
Domeizel Mariane [2],
FATOMBI Jacques K. [3],
JOSSE Roger Gérard [4],
AMINOU TAOFIKI WABI [5],
|
| Journal: |
Journal of Environmental Protection |
| Catégorie Journal: |
Internationale |
| Impact factor: |
0 |
| Volume Journal: |
2 |
| DOI: |
10.4236/jep.2011.26080 Published Online August 2011 (http://www.SciRP.org/journal/jep) |
| Resume |
Identification of waste characteristics is an important step towards improving waste recovery. The aim of this research
was to determine the physical and physico-chemical characteristics of waste of Abomey–Calavi city and to study the
relationship between standard of living and average ratio of daily waste generated by each person. In this study the
methodology used French standards to characterize particle size and typology of solid waste generated by the population of Calavi City in Benin,West Africa. According to home criteria,the study area was stratified into three distinct
levels of standard of living called:high standing,medium standing and low standing;Waste from 60 households was
weighed daily. The total waste produced byeach household was collected seven (7)days a week,for a period of three
weeks. Waste characterization was performed using ratio,size granulometry and typological composition. Physico-
Chemical analysis including organic mater,pH, Total Organic Carbon,total Kjeldahl nitrogen and metal trace element
were also performed. To better assess waste compostability,water extractable organic matter was quantified and
qualitative identification was made with XAD8and XAD4resins. Results show that the amount of waste increases with
the standard of living;the average ratio of daily waste generated is 0.89kg·day
–1
·person
–1
. Independently of the stan-
dard of living,fermentable compounds represent the largest proportion of waste materials (45%).Qualitative differ-
ence of waste content in organic matter is shown as a function of the population’s living standards. These results could
be explained by a higher consumption of meat in the households with a higher standard of living,reflecting a greater
proportion of transphilic (TPI),and hydrophilic(HPI)fractions. The C/N ratio is lower in the high standing households
than in low ones. Metal trace element analysis showed a low but still significant pollution,whereas high iron and alu-
minum concentrations were found in all standings. In conclusion we propose a strategy for waste management in
Abomey-Calavi based on sorting at the source to eliminate plastic waste and valorization of wastes via composting |
| Mots clés |
Wastes,Standard of Living,Water Extractable Organic Matter,Metal Trace Element,XAD8/XAD4Resins |
| Pages |
692 - 699 |
| Fichier |
 (PDF) |