Year: 2024 | Month: March | Volume: 11 | Issue: 3 | Pages: 144-150
DOI: https://doi.org/10.52403/ijrr.20240319
Contribution to the Management and Valorization of Fecal Sludge in the Urban Commune of Kissidougou, Mamou, Republic of Guinea
Yakouba TRAORE1, Ansoumane SAKOUVOGUI2, Mamby KEITA3, Mafory BANGOURA3
1Department of Physics, Higher Institute of Educational Sciences of Guinea, Guinea.
2Energy Department, Mamou Higher Institute of Technology, Guinea.
3Department of Physics, Faculty of Sciences, Gamal Abdel Nasser University of Conakry, Guinea.
4Department of Chemistry, Faculty of Sciences, Gamal Abdel Nasser University of Conakry, Guinea.
Corresponding Author: Yakouba TRAORE
ABSTRACT
Background and Aim : This research is a continuation of our work on the management and recovery of domestic waste. Its general objective is to take stock of the fecal sludge in the urban commune of Kissidougou, with a view to proposing appropriate treatment techniques. So, to achieve this objective, we carried out a field survey in the twenty-four neighborhoods of the urban commune, where we met ten households per neighborhood, or two hundred and forty households.
Method : The specific production methods, characteristics of sanitation works, demand for mechanical emptying, and turnover of the emptying operator were used
Results : The results obtained show that the housing typology of Kissidougou is characterized by a dominance of low standing estimated at 61%, followed by 37% of medium standing compared to only 2% of traditional type. Wastewater and excreta sanitation works are mainly traditional with 61%, followed by septic tanks with 14%, 13% improved latrines, 10% without specific purpose and only 1% VIP. The frequency of emptying is estimated at 40% for between 2 to 5 years, 29% (more than 2 years), 19% of the population surveyed, once the latrines are full, they give up; 7% have not changed their oil for 10 years; Likewise, 51% of the population do manual emptying; while 43% have an imprecise method of emptying their works; 4% empty their works mechanically and only 1% (other and not yet emptied). For a population of nearly 110000 inhabitants, the estimated annual specific production of faecal sludge is 64240 m3/year, or a specific production depending on households of 3014 m3/year. The quantity of sludge mechanically drained per year is 0.4m3/year; that manually is 6.24 m3/year. Thus, the characteristic of the sanitation works gives 314.12 m3/year and that of the operation of the mechanical emptying operator is 730 m3/year.
Conclusion : The results show that 30% of the population do not know how much they paid to empty their latrines ; while 18% say they paid 300000 GNF, 13% paid 350000 GNF ; 10% invested 450000 GNF for emptying their latrines, 8% of the population paid 400000 GNF and others 500000 GNF ; 6% of respondents said nothing about the emptying situation ; 5% pay 650000 GNF and 4% do their emptying at 600000 GNF.
Keywords: Faecal sludge, sanitation works, Management and recovery
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