Management and recovery of effluent from the drinking water production industry into agricultural fertilizer: case of REGIDESO -Ndjili in Kinshasa

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Authors

  • Danny Kianawa Kinakina Ecole Régionale de l’Eau (ERE) & Centre de Recherche en Ressources en Eau du Bassin du Congo (CRREBaC), BP 117 Université de Kinshasa, R.D.Congo Author
  • Thierry Tangou Tabou Ecole Régionale de l’Eau (ERE) & Centre de Recherche en Ressources en Eau du Bassin du Congo (CRREBaC), BP 117 Université de Kinshasa, R.D.Congo Author
  • Genny Lutonadio Kiala Ecole Régionale de l’Eau (ERE) & Centre de Recherche en Ressources en Eau du Bassin du Congo (CRREBaC), BP 117 Université de Kinshasa, R.D.Congo Author
  • Pascal Kazwenga Masawula Author

DOI:

https://doi.org/10.59228/rcst.025.v4.i4.212

Keywords:

Effluent, Flocculation, fertilizer, Amaranth

Abstract

The valorization of effluents from the drinking water production industry of N'djili into agricultural fertilizer was carried out, the potential fertilizing power of these effluents was evaluated on the cultivation of amarantus hybridus.L; with the objectives of contributing to its management and valorization. To achieve these objectives, recycling of effluents was carried out by flocculation based on prickly pear cladode, followed by soil fertilization tests with the fertilizer produced from sewage sludge, and cultural tests were carried out following a completely randomized Latin square design.
Physico-chemical analyzes and major fertilizing elements were carried out at the Regideso central laboratory, and the cultural trials at the experimental Biology garden of the University of Kinshasa.
The results of these studies show us that the fertilizer produced from settling sludge (Treatment T3) and the Treatment having benefited from the addition of chemical fertilizer (Treatment T2) gave similar results when added to witnesses, having benefited from the provision of tap water from Regideso,2(Treatment To). The veracity of the result was approved by the statistical test of analysis of variance at the 5% threshold. Based on these results, the fertilizer produced from the treatment of sedimentation sludge can be used as an agricultural amendment in market gardening. Hence the effluent produced at the N’djili industrial complex can be used as agricultural fertilizer.

How to cite

APA

Kianawa Kinakina, Danny, Tangou Tabou, Thierry, Lutonadio Kiala, Genny, Kazwenga Masawula, Pascal (2026). Management and recovery of effluent from the drinking water production industry into agricultural fertilizer: case of REGIDESO -Ndjili in Kinshasa. Congolese Journal of Science and Technology, 4(4), . 868-876. https://doi.org/10.59228/rcst.025.v4.i4.212

Vancouver

Kianawa Kinakina D, Tangou Tabou T, Lutonadio Kiala G, Kazwenga Masawula P. Management and recovery of effluent from the drinking water production industry into agricultural fertilizer: case of REGIDESO -Ndjili in Kinshasa. CJST. 2026;4(4):. 868-876. doi:10.59228/rcst.025.v4.i4.212

BibTeX

@article{rcst632,
  author  = {Kianawa Kinakina, Danny and Tangou Tabou, Thierry and Lutonadio Kiala, Genny and Kazwenga Masawula, Pascal},
  title   = {Management and recovery of effluent from the drinking water production industry into agricultural fertilizer: case of REGIDESO -Ndjili in Kinshasa},
  journal = {Congolese Journal of Science and Technology},
  year    = {2026},
  volume  = {4},
  number  = {4},
  pages   = {. 868--876},
  doi     = {10.59228/rcst.025.v4.i4.212},
  url     = {https://rcst.cd/index.php/rcst/en/article/view/632}
}

RIS

TY  - JOUR
AU  - Kianawa Kinakina, Danny
AU  - Tangou Tabou, Thierry
AU  - Lutonadio Kiala, Genny
AU  - Kazwenga Masawula, Pascal
TI  - Management and recovery of effluent from the drinking water production industry into agricultural fertilizer: case of REGIDESO -Ndjili in Kinshasa
JO  - Congolese Journal of Science and Technology
PY  - 2026
VL  - 4
IS  - 4
SP  - . 868
EP  - 876
DO  - 10.59228/rcst.025.v4.i4.212
UR  - https://rcst.cd/index.php/rcst/en/article/view/632
ER  - 
120 0

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References

Jean R., Bernard, L.,& Merlet, N. (2016), L’Analyse de l’eau ; Contrôle et Interprétation, Ed. Dunod, ème édition, 1806, Paris France.

Makoko, M.(2001),Les sols du Mont-Amba : caractérisation pédologique, mécanique et stock en eau. Revues Zaïrois des sciences nucléaires, (1991), 72-94.

Ndembo, L., & Nsimba, M., (1991), Les sols du Mont- Amba : caractérisation pédologique, mécanique et stock en eau. Revues Zaïrois des sciences nucléaires, 12(1991), 72-94.

Musibono, E.A.D., (1987), Valorisation des drèches de brasserie en aquaculture à la prairie, Notre- Dame de l’Assomption, une valorisation de déchets industriels,[Mémoire, D.E.S,

Environnement, Kinshasa UNIKIN].

Mutombo, M.G.(2010), Aperçu technologique sur l’horticulture urbaine et périurbaine de la RDC, cas de la ville de Lubumbashi. Service national d’appuis au développement de l’horticulture urbaine et périurbaine, 87p, RDC.

Ngadi R., Mulaji C., Mukendi C., Idrissa A, Kindela J.F. & Mukwa L., (2023), Caractérisation physico-chimique et agronomique des boues de potabilisation d’eau des usines de Kinshasa, RDC .Afrique Science, 23(3), 25 - 41 OMS. (2016), Directives de qualité pour l’eau de boisson, 2è Edition Recommandations, Genève.

ONU-EAU.(2017), Les eaux usées : une ressource inexploitée, Rapport mondial des Nations Unies sur la mise en valeur des ressources en eau, Organisation des Nations Unies pour l’éducation, la science et la culture 7, place de Fontenoy.Paris.

Tangou, T.T., (2018), Technologies de l’eau et des eaux usées. Éditions Presses Universitaires de

Kinshasa, Unikin.

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Published

January 2, 2026

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