Spatial evolution of the physico-chemical, organoleptic and bacteriological properties of a municipal artificial lake

Talla, A.; Motto, F.D.; Nkeng, G.E.

doi:10.22034/IJHCUM.2020.01.04

Document Type : ORIGINAL RESEARCH ARTICLE

Authors

¹ Energy, Water and Environment Laboratory, National Advanced School of Engineering, University of Yaounde I, Yaounde, Cameroon

² Research Center, National Advanced School of Public Work, Yaounde, Cameroon

³ Department of chemistry, University of Buea, Buea, Cameroon

https://doi.org/10.22034/IJHCUM.2020.01.04

Abstract

This study is a contribution to the study of the spatial evolution of the properties of the municipal lake of Yaounde-Cameroon. The objective was the characterization of the physico-chemical, bacteriological and organoleptic parameters of water of this lake in order to provide the scientifically exploitable data. To understand the sources and the evolution of the pollution of this lake, we carried out on the surface of water, fifteen samples horizontally representative and arranged on the longitudinal axis and the transverse axis of this one. Analyzes of the parameters of these samples allowed us to establish that three classes of water coexist within the expanse of this lake, in this case water of class 5 (colour = 380.3 mgPt-Co/L, conductivity at 20 °C = 3620 μS/cm, pH = 6.2, dissolved oxygen = 0.4 mg/L) at its its eastern bank; water of class 4 (101.4 ≤ colour ≤ 172.8 mgPt-Co/L, 25.7 ≤ temperature ≤ 26.1 °C, 6.6 ≤ pH ≤ 7.0, 8.9 ≤ BOD₅ ≤ 20.7 mg/L, 43.0.10³ ≤ total coliforms ≤ 49.7.10³ CFU/100 mL) around 300 meters from its tributary and water of class 3 (54.9 ≤ colour ≤ 93.4 mgPt-Co/L, 24.2 ≤ temperature ≤ 25.5 °C ; 7.4 ≤ pH ≤ 7.7, 6.6 ≤ BOD5 ≤ 8.7 mg/L) in the rest of the lake. These water classes, as indicated above, cause this lake to be polluted differently. The study also allowed us to identify two directions of self-purification within the lake expanse.

Keywords

Main Subjects

Urban ecology and related environmental concerns

References

ALPHA, (1998). Standard method for examination of water and wastewater, 20th Ed., Washington, DC, (1150 pages).

Assako, R.J.A., (2001). Formulation et validation d’une hypothèse de pollution de l’eau de surface, le cas du lac municipal de Yaoundé, Déchets Sci. Tech., N° 23, ref : 11: 35-38 (4 pages).

Azam, M.; Khan, A.Q., (2016). Urbanization and environmental degradation: evidence from four SAARC countries-Bangladesh, India, Pakistan, and Sri Lanka, Environ. Prog. Sustain. Energy, 35(3): 823-832 (10 pages).

Bhateria, R.; Jain, D., (2016). Water quality assessment of lake water: a review, Sustain. Water Resour. Manage., 2: 161-173 (13 pages).

Ekangele, N.L.; Myung, C.J.; Ekodeck, G.E., (2015). Accumulation of metals in three fish species from the Yaounde municipal lake in Cameroon, Environ. Monit. Assess., 187 (9): 560 (12 pages).

Ekengele, L.; Myung, J.; Ombolo, A.; Ngatcha, N.; Ekodeck, G.; Lape, M., (2008). Metals pollution in freshly deposited sediments from river Mingoa, main tributary to the Yaounde municipal lake, Cameroon Geosci. J., 12 (4): 337-347 (11 pages).

Fang, C. ; Wang, J., (2013). A theoretical analysis of interactive coercing effects between urbanisation and eco-environment, Chin. Geog. Sci., 23 (2) : 147-162 (16 pages).

HACH, (2015). Measurement systems of the BOD-BOD Direct plus, Edition 1, Instructions for Use, DOC342.77.90554, Colourado (USA), (36 pages).

He, J.; Wang, S.; Liu, Y.; Ma, H.; Liu, Q., (2017). Examining the relationship between urbanization and the eco-environment using a coupling analysis: case study of shanghai, China, Ecol. Indic., 77: 185-193 (9 pages).

Ji, C.K.; Ekangele, N.L.; Myung, C.J.; Ekodeck, G.E.; Mbome, L.I.; Ki-Hyun, K., (2008). Impact assessment of heavy metal pollution in the municipal lake water Yaounde Cameroon, Geosci. J., 12(4) : 337-347 (11 pages).

Kalinowska, K., (2004). Bacteria, nanoflagellates and ciliates as components of the microbial loop in three lakes different tropic status, Pol. J. Ecol., 52 (1): 19-34 (16 pages).

Kemka, N.; Togouet, S.H.Z.; Kinfack, R.P.D.; Nola, M.; Menbohan, S.F.; Njine, T., (2009). Dynamic of phytoplankton activity in a tropical hypeutrophic lake: the Yaounde municipal lake (Cameroon), Hydrobiologia, 625 (1): 91-103 (13 pages).

Kemka, N.; Njine, T.; Togouet, Z.; Menbohan, S.; Nola, M.; Monkiedje, A.; Niyitegeka, D.; Compere, P., (2006). Eutrophication of lakes in urbanized areas: The case of Yaounde municipal lake in Cameroon, Central Africa: Lakes and Reservoirs, Res. Manage., 11: 47-55 (9 pages).

Kemka, N;, Njine, T.; Togouet, Z.; Niyitegeka, D.; Nola, M.; Monkiedje, A.; Demanou, J.; Menbohan, S.; (2004). Phytoplankton of the Yaounde municipal lake (Cameroon): ecological succession and structure Stand, Water Sci. J., 17 (3): 301-316 (16 pages).

Kemka, N.; Njine, T.; Togouet, Z.; Niyitegeka, D.; Monkiedje, A.; Foto, S.; Nola, M.; Compere, P., (2003). Quantitative importance of cyanobacteria populations in a hypertrophic shallow lake in the subequatorial African region (Yaounde municipal lake, Cameroon), Arch. Hydrobiologia, 156 (4): 495-510 (16 pages).

Lang, C., (1989). Eutrophication of lake Neuchatel indicated by the oligochaete communities, Hydrobiologia, 174 (1): 57-65 (9 pages).

Li, Y. ; Li, Y. ; Zhou, Y. ; Shi, Y. ; Zhu, X., (2012). Investigation of coupling model of coordination between urbanization and the environment, J. Environ. Manage., 98, 127-133 (6 pages).

Ngnikam, E., Mougoue, B., Tietche, F., (2007). Eau, assainissement et impact sur la santé : étude de cas d’un écosystème urbain à Yaoundé, Actes des JSIRAUF, Hanoi (14 pages).

Noori, R. ; Berndtsson, R. ; Adamowski, J.F. ; Abyaneh, M.R., (2018). Temporal and depth variation of water quality due to thermal stratification in Karkheh Reservoir Iran, J. Hydrol.: Regional Studies, 19: 279-286 (8 pages).

Njine, T.: Kemka, N.; Togouet, S.H.Z.; Niyitegeka, D.; Nola, M.; Ayissi, T.; Monkiedje, A.; Foto, M.S., (2002). Yaounde municipal lake supply by untreated domestic waste water, and effect on assimilation capacity of the ecosystem, Proc. Int. Symp. Workshop on Environmental Pollution Control and Waste Management, Tunis, 15-17 (3 pages).

Nyenje, P.M.; Foppen, J.W.; Uhlenbrook, S.; Kulabako, R.; Muwanga, A., (2010). Eutrophication and nutrient release in urban areas of sub-Saharan Africa, A review, Sci. Total Environ., 408: 447-455 (9 pages).

PDM, (2003). Gestion et valorisation des eaux usées dans les zones d’habitat planifié et leurs périphéries, GEVEU, Rapport final (167 pages).

RéFEA, (2001). Analyse physico-chimique. Fiche rédigée par l’équipe technique du RéFEA (4 pages).

Rodier, J., (2009). L’analyse de l’eau. 9th Ed., Dunod, Paris (1600 pages).

Togouet, S.H.Z. ; Njine, T. ; Kemka, N. ; Nola, M. ; Menbohan, S. ; Koste, W. ; Boutin, C. ; Hochberg, R., (2007). Spatio-temporal changes in the abundance of the populations of the gatrotrich community in a shallow lake of tropical Africa, Limnologica, 37: 311-322 (12 pages).

Togouet, Z., (2011). Zooplankton et eutrophisation d’un lac en zone tropicale, Éditions universitaires européennes (228 pages).

Togouet, Z. ; Njine, T. ; Kemka, N. ; Nola, M. ; Menbohan, S. ; Monkiedje, A. ; Niyitegeka, D. ; Sime-Ngando, T. ; Jugnia, L., (2005). Spatial and temporal variations of wealth and abundance of rotifers (Brachinidae and Trichocercidae) and cladocerans in a small eutrophic man-made lake in the tropics, Water Sci. J., 18 (4): 485-505 (21 pages).

UN- Water/Africa, (2006). African Water Development Report, Africa, E.C.F., Economic Commission for Africa, (380 pages).

Vadde, K.K.; Wang, J.; Cao, L.; Yuan, T.; McCarthy, A.J.; Sekar, R., (2018). Assessment of water quality and identification of pollution risk locations in Tiaoxi River (Taihu Watershed), China. Water, 10(2): 183.

WHO, (2012). Safe use of wastewater, greywater and excreta, WHO guidelines, Vol. 1, Policy and Regulatory Considerations (114 pages).

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International Journal of Human Capital in Urban Management

Spatial evolution of the physico-chemical, organoleptic and bacteriological properties of a municipal artificial lake

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Volume 5, Issue 1 - Serial Number 17
January 2020
Pages 35-44

Spatial evolution of the physico-chemical, organoleptic and bacteriological properties of a municipal artificial lake

References

References

Send comment about this article

Volume 5, Issue 1 - Serial Number 17January 2020Pages 35-44

Volume 5, Issue 1 - Serial Number 17
January 2020
Pages 35-44