Nkpa Ogarekpe

University of Cross River State — Nigeria

Environmental Science · Physical Sciences

12h-index510citations48works1.32yr avg
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Research Topics

Hydrology and Watershed Management Studies(8), Flood Risk Assessment and Management(7), Water Quality and Pollution Assessment(6), Fecal contamination and water quality(5), Groundwater and Watershed Analysis(5)

Publications48 total

Hydrodynamic Performance Enhancement of a Lift-type Vertical-axis In-pipe Water Turbine Using a Flow Deflector: A CFD-based Parametric Study
Science Journal of Energy Engineering·2026Open Access
Machine learning for dissolved oxygen prediction in the Manawatu River catchment, New Zealand
Water Practice & Technology·2025Open Access
Effects of Water Storage Materials on the Quality of Roof-Harvested Rainwater
Water Conservation Science and Engineering·2025
Waste stabilization pond modelling using extreme gradient boosting machines
Water Practice & Technology·2024· 7 citedOpen Access
Detection and Measurement of Bacterial Contaminants in Stored River Water Consumed in Ekpoma
Water·2024· 1 citedOpen Access
Hydrological and Morphometric Characterization of Anambra-Imo River Basin Using Remote Sensing
Water Conservation Science and Engineering·2024
Hydrological and Morphometric Characterization of Anambra-Imo River Basin Using Remote Sensing
2023Open Access
Process analysis and optimization of solid waste haulage in Enugu Metropolis
Journal of Material Cycles and Waste Management·2023
Comparative Assessment of Medical Waste Management in Multi-System and Selected Teaching Hospitals in Ekiti State, Nigeria
Nature Environment and Pollution Technology·2023· 5 citedOpen Access
Bacterial Contamination Levels and Brand Perception of Sachet Water: A Case Study in Some Nigerian Urban Neighborhoods
Water·2023· 9 citedOpen Access
Groundwater quality index and potential human health risk assessment of heavy metals in water: A case study of Calabar metropolis, Nigeria
Environmental Nanotechnology Monitoring & Management·2023· 44 cited
Stochastic modeling and meta-heuristic multivariate optimization of bioprocess conditions for co-valorization of feather and waste frying oil toward prodigiosin production
Preparative Biochemistry & Biotechnology·2022· 12 citedOpen Access
Intracellular-to-extracellular localization switch of acidic lipase in Enterobacter cloacae through multi-objective medium optimization: aqueous two-phase purification and activity kinetics
World Journal of Microbiology and Biotechnology·2022· 3 cited
Flash Flood Risk Assessment of the Great Kwa River Basin Using Analytical Hierarchy Process
Water Conservation Science and Engineering·2022· 1 cited
Assessing the state of rainwater for consumption in a community in dire need of clean water: Human and health risk using HERisk
Water Practice & Technology·2022· 20 citedOpen Access
Intracellular-to-extracellular localization switch of acidic lipase in <i>Enterobacter cloacae</i>: evaluation of production kinetics and enantioselective esterification potential for pharmaceutical applications
Preparative Biochemistry & Biotechnology·2022· 8 cited
A novel strain of Stenotrophomonas acidaminiphila produces thermostable alkaline peptidase on agro-industrial wastes: process optimization, kinetic modeling and scale-up
Archives of Microbiology·2022· 10 cited
Overproduction of a thermo-stable halo-alkaline protease on agro-waste-based optimized medium through alternate combinatorial random mutagenesis of Stenotrophomonas acidaminiphila
Biotechnology Reports·2022· 21 citedOpen Access
A preliminary case for modification of the SCS-CN hydrologic model for runoff prediction in Imo River sub-basin
Arabian Journal of Geosciences·2022· 7 cited
Dimensionality Reduction Analysis of the Integrated Solar and Hydraulic Jump Enhanced Waste Stabilization Pond Model Parameters
International journal of engineering research in Africa·2022· 4 cited
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Frequent Co-authors

Maurice Ekpenyong(14), Richard Antigha(14), I.T. Tenebe(14), Chidozie Charles Nnaji(13), PraiseGod Chidozie Emenike(13), Atim Asitok(11), S. P. Antai(10), Joseph P. Essien(6), Iquo Takon(6), Agnes Antai(5), Eunice O. Babatunde(5), Philomena Edet(4), Egbe-Etu Etu(4), J. C. Agunwamba(4), David O. Omole(3), Oluwadare Joshua Oyebode(3), Joshua Emakhu(3), Nsikak U. Benson(3), Ekene Jude Nwankwo(3), Anitha Rao(3)