Application of Modflow in Modeling Groundwater Flow Direction for Abia State, Nigeria

International Journal of Research and Scientific Innovation (IJRSI) | Volume VI, Issue IX, September 2019 | ISSN 2321–2705

Application of Modflow in Modeling Groundwater Flow Direction for Abia State, Nigeria

Enyinna Gregory. C

Chair of Environmental Geology, Environmental resources management, Brandenburg University of Technology, Cottbus Seftenberg, Germany/ Department of Project Management Federal University of Technology Owerri, Nigeria

Abstract: – Developing groundwater flow model for Nigeria was achieved in this research for 12 out of 17 local government areas in Abia state. The model was designed to show the groundwater flow direction using MODFLOW version of Arc hydro software with a realistic output that displayed groundwater flow direction and flow path in each of the local government areas. The water wells where water samples were collected and analyzed in the laboratory showS that out of the 48 water samples that were scientifically analyzed for microbial contamination in water, 85.4% was contaminated with total bacterial contamination when compared with world health organization (WHO) standard, 85.5% was contaminated with total coliform contamination, 95.8% was contaminated with total fecal contamination, 95.8% was contaminated with total E coli contamination, 77.1% was contaminated with total vibrio contamination, 87.5% was contaminated with total salmonella contamination, 58.3% was contaminated with total pseudomonas contamination and 97.9% was found with total fungal contamination. The laboratory technique that was used for water analysis to achieve the above results was the membrane filtration techniques where 100ml of sample were filtered under vacuum on sterilized Nitrocellulose filter of pore size of 0.45mm with the help of filtration rack. Groundwater protection zone concept, water treatment strategies, development of recycling plants, immunization against water related diseases and public orientation on pollution reduction strategies have been recommended as groundwater contamination and water related health disaster control in Nigeria.

Key Words: Contaminant Transport, Groundwater Flow, Health Disaster, Microbial Analysis.

I. INTRODUCTION

Groundwater quality assessment has become a global research issue because of the high relevance of groundwater to the global community and its corresponding human health impact that manifest several forms of water related diseases epidemics. Clinton. (1992), Chima et al (2008). Groundwater can be regarded highest in rating of importance water resources since it makes up some 2/3 of global freshwater resources but if the polar icecaps and glaciers are eliminated from the evaluation, groundwater can be said to cover almost all freshwater systems.

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