The reuse of fecal sludge in the Municipality of Sèmè-Podji is feasible through compost production that no longer poses a public health risk. The methodological approach combines literature review, field data collection from 302 respondents, and data processing. At Sèmè-Podji, 29% of the surveyed population still use traditional emptying methods, while 71% rely on professional desludging services. The presence of a Fecal Sludge Treatment Plant (FSTP) is crucial for sustainable sludge management. At the plant, raw sludge is discharged into a reception pit where it remains for 15 to 21 days to allow separation of the liquid fraction and obtain dehydrated solids. These solids are stored under controlled conditions. Pre-treatment and co-composting are the main steps in agricultural valorization. Additionally, 73% of farmers apply compost through spreading, while 27% practice burial. These methods improve soil fertility using compost derived from fecal sludge. Due to its richness in nutrients (nitrogen, phosphorus, potassium) and organic matter, treated sludge is used as an agricultural amendment, provided sanitary standards are respected.
References
[1]
WaterAid (2021) Faecal Sludge Management Guide. 53 p. https://www.susana.org/_resources/documents/default/3-4989-7-1654846308.pdf
[2]
Tayler, K. (2018) Faecal Sludge and Septage Treatment: A Guide for Low and Middle Income Countries. Practical Action Publishing, 426 p. https://doi.org/10.3362/9781780449869
[3]
KRAMO Yao Valère (2024) GESTION DES DECHETS MENAGERS, PRATIQUES IMMOBILIERES ET RISQUES SANITAIRES DANS LA VILLE DE BEOUMI (CENTRE DE LA COTE D’IVOIRE). Revue de Géographie de l’Université de Ouagadougou, 1, 99-118. https://revuegeographieouaga.com/wp-content/uploads/2025/04/06_TAP_RGO_N%C2%B013-v1_-KRAMO.pdf
[4]
Kouawa, T. (2016) Treatment of Faecal Sludge by Drying Beds under Sudano-Sahelian Climate. Ph.D. Thesis, University of Strasbourg, 236 p. https://theses.fr/2016STRAD018?domaine=theses
[5]
Kondoh, E., Bodjona, M.B., Aziable, E., Tchegueni, S., Kili, K.A. and Tchangbedji, G. (2019) Etat des lieux de la gestion des déchets dans le Grand Lomé. InternationalJournalofBiologicalandChemicalSciences, 13, 2200-2209. https://doi.org/10.4314/ijbcs.v13i4.25
[6]
BENIN (2022) The Sanitation & Hygiene Fund 2023. 24 p. https://www.shfund.org/sites/default/files/2024-04/BENIN_REPORT_4%20%281%29.pdf
[7]
Sore, O.A.A. (2018) Valorization of Dehydrated Faecal Sludge and Organic Household Solid Waste through Co-Composting in Burkina Faso. Master’s Thesis, Water and Environmental Engineering, 2iE, 87 p. https://www.scirp.org/reference/referencespapers?referenceid=3262166
[8]
Douanla Maffo, P. (2022) Assessment of Environmental and Socio-Health Risks Associated with the Faecal Sludge Management Chain in Douala, Cameroon. Ph.D. Thesis, University of Yaoundé I, 220 p. https://dicames.online/jspui/bitstream/20.500.12177/11136/1/FS_These_BC_23_0303.pdf
[9]
Strande, L., Mariska, R. and Brdjanovic, D. (2014) Faecal Sludge Management: Systems Approach for Implementation and Operation. IWA Publishing, 466 p. https://doi.org/10.2166/9781780404738
[10]
Gaffan, N., Dégbey, C., Kpozèhouen, A., Glèlè Ahanhanzo, Y., Johnson, R.C. and Salamon, R. (2023) Is Benin on Track to Reach Universal Household Coverage of Basic Water, Sanitation and Hygiene Services by 2030? PLOS One, 18, e0286147. https://doi.org/10.1371/journal.pone.0286147
[11]
Institut National de la Statistique et de l’Analyse Economique (INSAE) (2016) Effecifs de la population des villages et quartiers de ville du Bénin (RGPH-4, 2013). Ministère du Plan et du Développement. https://instad.bj/images/docs/insae-statistiques/demographiques/population/Effectifs%20de%20la%20population%20des%20villages%20et%20quartiers%20de%20ville%20du%20benin/Cahier%20Village%20RGPH4%202013.pdf
[12]
Schwartz, D. (1995) Le jeu de la science et du hasard. La statistique et le vivant. Flammarion.
[13]
Noumonvi, C.V.P. (2020) Analysis of Determinants of Technical Efficiency and Profitability of Fish Farming Systems in the Communes of S？ava and Sèmè-Podji. Master’s Thesis, FSA/UAC (Benin), 89 p. https://www.acedafrica.org/wp-content/uploads/2020/03/analyse_des_determinants_de_lefficacite_technique_et_de_la_rentabilite_des_systemes_de_pisciculture_dans_les_communes_de_so-ava_et_de_seme-podji_0.pdf
[14]
Djessonou, F.N.C. (2023) Development of Agricultural Entrepreneurship in the Djidja-Za-Kpota Area: Factors and Constraints. Ph.D. Thesis, EDP/UAC, 273 p.
[15]
Borda Tanzania (2021) Faecal Sludge Management (FSM). Guide for Dar es Salaam, Second Editio. 12 p. https://www.susana.org/_resources/documents/default/2-626-222-1624993164.pdf
[16]
Kasenally, R. and Awatar, D. (2017) Social Media, Elections and Political Engagement: The 2014 General Election in Mauritius. Journal of African Elections, 47-70. https://www.eisa.org/storage/2023/05/2017-journal-of-african-elections-v16n2-social-media-elections-political-engagement-2014-general-election-mauritius-eisa.pdf
[17]
Poromna, H., Lare, F., Sossou Seyram, K., Kangni-Dossou, M., Gnandi, K. and Ameyapoh, Y. (2020) Quantification et caractérisation des boues de vidange dans la ville d’Aného au Togo pour le choix d’un traitement approprié. International Journal of Innovation and Scientific Research, 49 288-300. https://issr-journals.org/links/papers.php?journal=ijisr&application=pdf&article=IJISR-20-163-08
[18]
Houngue, B.C.A. (2022) Analysis of Determinants of Financial Performance of Household Waste Pre-Collection Enterprises in Greater Nokoué (Benin). International Journal of Scientific Research (REIRES), 3, 75-92.
[19]
Klingel, F., Montangero, A., Kone, D. and Strauss, M. (2002) Gestion des boues de vidange dans les pays en développement. Institut de Recherche sur l’Eau du Domaine des Ecoles Polytechniques Fédérales (EAWAG) Département Eau et assainissement dans les pays en développement (SANDEC), 64 p. https://www.fsmtoolbox.com/assets/pdf/pdf-04April2019-original-learnpdfsource/Gestion_des_boues_de_vidange_dans_les_pays_en_d%82veloppement._Manuel_de_planification.pdf
[20]
Koukou, R., Odoulami, L. and Totin, H. (2024) Effets socio-environnementaux des modes de gestion des boues de vidange dans le Grand Nokoué au Bénin (Afrique de l’Ouest). DaloGéo, revue scientifique spécialisée en Géographie, Université Jean Lorougnon Guédé, 43-60. https://revuegeo-univdaloa.net/sites/default/files/2025-07/DaloG%C3%A9o_010_07.pdf
