Dr. Olaniyan Olatunji Sunday

Dr. Olaniyan Olatunji Sunday |Clyto Access

LAUTECH Ogbomoso, Nigeria


Expertise: Water Resources and Environmental Engineering


Dr. Olaniyan, Olatunji Sunday had done a Bachelor of Engineering in Civil Engineering (2004) and Master of Science degree (2008) from Ladoke Akintola University of Technology (LAUTECH) and University of Ibadan, respectively. He also had a Master of Science degree in Engineering Geology from Vrije Universiteit, Belgium. Dr.Olatunji Olniyan sunday had PhD d in Civil Engineering degree from LAUTECH in 2014. Currently, he is working as a Senior Lecturer in Civil Engineering Department of LAUTECH Ogbomoso,Oyo State Nigeria.



Title: Water Quality Assessment of River Osun, Osogbo, Nigeria Using HEC-RAS Model


Water is life and every human activity revolves round its availability. This study modeled water quality across River Osun using Hydrologic Engineering Centre River Analysis System (HEC-RAS) software. Forty (40) water samples were collected from upstream (70 45’ 26”, 40 37’ 22”), midstream (70 44’ 17”, 40 33’ 20”), and downstream (70 45’ 06”, 40 32’ 41”) sampling stations on the river from May 2015 to January 2016. Physical [Temperature and Total Dissolve Solid (TDS)], Chemical [CBOD, DO, NO3-N, NO2-N, and PO43-] and Biological (BOD) tests were carried out on the water samples using standard procedure (APHA, 2004). These parameters were input into HEC-RAS to simulate water quality on River Osun. Three hundred (300) developed questionnaires on the prevalence of water borne diseases in Osogbo were distributed to households and health workers and analyze at 5% significance level. Temperature and TDS for rainy and dry season varied from (24.9 - 28.9)0C and (29.0 -339)0C; (90 -110) mg/l; (41.9 - 64.3) mg/l, respectively. The temporal variation of DO, NO3-N, NO2-N and PO43- for rainy and dry seasons varied from (5.2 - 7.6) mg/l and (3.21 - 6.10) mg/l; (0.00 -7.41) mg/l and (9.0 - 19.3); (0.207 - 0.622) and (0.715 - 1.145) mg/l; (3.64 - 5.91) mg/l and (4.04 - 6.21) mg/l, respectively. The BOD values ranged from (0.4 -2 .0) mg/l and (1.93 - 2.96) mg/l, respectively. There is high correlation (P < 0.05, 16 df) between the pair of resident with water borne diseases and stations at upstream and midstream stations. The DO, CBOD, NO3-N, NO2-N, and PO43- output from HEC-RAS for rainy and dry seasons varied from (5.6 -7.4) mg/l and (3.391-5.828) mg/l; (14.81 -15.69) mg/l and (15.87-15.93) mg/l; (0.235 - 5.43827) mg/l and (13.24 -19.1) mg/l; (0.806484 - 1.22) and (0.2085 - 0.4041) mg/l; (3.76-5.16 mg/l and (4.12 - 4.88) mg/l , respectively. The results showed that the river is polluted and not fit for household usage. The result is useful to trace the pollution sources and develop water resources management towards achieving Sustainable Development Goals (SDGs).


Related Conferences :

World Summit on Recycling and Environmental Management