1. Ugwu, E.I., A. Othmani and C. C. Nnaji, 2022. A review on zeolites as cost-effective adsorbents for removal of heavy metals from aqueous environment. Int. J. Environ. Sci. Technol., 19: 8061-8084.
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2. Ugwu, E.I. and J.C. Agunwamba, 2022. Optimization of process parameters for adsorption of hexavalent chromium from wastewater using response surface methodology. Int. J. Eng. Res. Afr., 59: 239-262.
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3. Ugwu, E.I. and J.C. Agunwamba, 2022. Competitive adsorption of copper, zinc, and chromium from wastewater using corn-cob ash: Optimization approach. Int. J. Eng. Res. Afr., 58: 77-94.
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4. Yonar, S., E.l. Ugwu and E. Sabah, 2021. Modelling and optimization of sepiolite activation with citric acid using factorial experimental design and response surface methodology. Silicon, 13: 2185-2194.
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5. Njoku, C.E., K.K. Alaneme, J.A. Omotoyinbo, A.C. Ekeleme, E.I. Ugwu and U.S. Ikele, 2021. Phytochemical, proximate and mineral analyses of urena lobata stems from Imo State Nigeria. IOP Conf. Ser.: Mater. Sci. Eng., Vol. 1107. 10.1088/1757-899X/1107/1/012183.
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6. Ibearugbulam, H.O., E.I. Ugwu, A.C. Ekeleme, C.E. Njoku and E.C. Amanamba et al., 2021. A study on physicochemical parameters of fish pond effluents: A case study of Umudibia fish farm. IOP Conf. Ser.: Mater. Sci. Eng., Vol. 10367. 10.1088/1757-899X/1036/1/012005.
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7. Ekeleme, A.C., O.H. Ibearugbulem, E.I. Ugwu, C.E. Njoku and E.C. Amanamba et al., 2021. Investigation of geotechnical properties of soil samples in Isu-Njaba Imo State. IOP Conf. Ser.: Mater. Sci. Eng., Vol. 1036. 10.1088/1757-899X/1036/1/012035.
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8. Ekeleme, A.C., E.I. Ugwu, C.E. Njoku, E.C. Amanamba and E.E. Arinze et al., 2021. Effect of palm bunch ash on the compressive strength of concrete. IOP Conf. Ser.: Mater. Sci. Eng., Vol. 1107. 10.1088/1757-899X/1107/1/012171.
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9. Ede, A.N., A.I. Akpabot, S.O. Oyebisi, O.M. Olofinnade and C.A. Okeke et al., 2021. The trend of collapse of buildings in concrete materials in Lagos State, Nigeria (2013-2019). IOP Conf. Ser.: Earth Environ. Sci., Vol. 655. 10.1088/1755-1315/655/1/012078.
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10. Ugwu, E.I., O. Tursunov, D. Kodirov, L.M. Shaker, A.A. Al-Amiery, I. Yangibaeva and F. Shavkarov, 2020. Adsorption mechanisms for heavy metal removal using low cost adsorbents: A review. IOP Conf. Ser.: Earth Environ. Sci., Vol. 614. 10.1088/1755-1315/614/1/012166.
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11. Ugwu E.I. and J.C. Agunwamba, 2020. Optimal conditions for adsorption of zinc from industrial wastewater using groundnut husk ash. Environm. Monit. Assess., https://doi.org/10.1007/s10661-020-08262-w http://dx.doi.org/10.1007/s10661-020-08262-w.
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12. Ugwu E.I. and J.C. Agunwamba, 2020. A review on the applicability of activated carbon derived from plant biomass in adsorption of chromium, copper, and zinc from industrial wastewater. Environmental Monitoring and Assessment 192: 240-240.
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13. Kodirov, D., K. Muratov, O. Tursunov, E.I. Ugwu and A. Durmanov, 2020. The use of renewable energy sources in integrated energy supply systems for agriculture. IOP Conf. Ser.: Earth Environ. Sci., Vol. 614. 10.1088/1755-1315/614/1/012007.
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14. Awoyera, P.O., O. Awobayikun, R. Gobinath and E.I. Ugwu, 2020. Rheological, mineralogical and strength variability of concrete due to construction water impurities. Int. J. Eng. Res. Afr., 48: 78-91.
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15. Ugwu, E.I., A.C. Ekeleme, S.T.A. Okolie, O.P. Ibe, C.F. Chieke, H.O. Ibearugbulem, M. Omeje, A.N. Ede, P.O. Awoyera and E.C. Ugwu, 2019. Characterization of medical wastes from selected hgospitals in Umuahia, Nigeria. J. Phys.: Conf. Ser., 10.1088/1742-6596/1378/4/042058.
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16. Ugwu, E.I., A.C. Ekeleme, P.O. Awoyera, H.O. Ozioko and U. Osinachi, 2018. Effect of municipal solid waste dump on some geotechnical properties of soil. J. Mater. Environ. Sci., 9: 585-590.
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17. Okonkwo, U.N., E.E. Arinze and E.I. Ugwu, 2018. Lateritic soil treated with polyvinyl waste powder as a potential material for liners and cover in waste containment. J. Solid Waste manage. Technol., 44: 173-179.
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18. Obianyo, J.I. and E.I. Ugwu, 2018. The Freundlich and langmuir models for sorption of sodium chloride tracer in crushed cow bone and palm kernel shell adsorbents. Umudike J. Eng. Eng. Technol., 4: 75-84.
19. Obianyo, J.I. and E.I. Ugwu, 2018. Physicochemical and microbiological study of aba river abia state, Nigeria. Umudike J. Eng. Eng. Technol., 4: 1-8.
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20. Ede, A.N., M.O. Oluwarotimi, I.U. Emmanuel and O.S. Ayotomiwa, 2018. Potentials of Momordica angustisepala fiber in enhancing strengths of normal portland cement concrete. Cogent Eng., 5: 1-17.
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21. Arinze, E.E., E.I. Ugwu and C.N. Agwu, 2018. Effect of rainfall intensity on soil erodibility using rainfall simulator. Niger. J. Soil Environ. Res., 15: 25-31.
22. Ozioko, H.O. and E.I. Ugwu, 2017. Algorithm for the dynamic analysis of plane rectangular rigid frame subjected to ground motion. Arid Zone J. Eng. Technol. Environ., 13: 790-800.
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23. Nnaji, C.C., J.E. Chinwe and I.U. Emmanuel, 2017. Physicochemical conditions for adsorption of lead by rice husk ash. Bio. Res., 12: 799-818.
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24. Ezeokpube, G.C., J.I. Obianyo, U. Egwu, E.I. Ugwu, H.O. Ozioko, J. Ibeawuch and S. Eboh, 2017. Biogas potential of feedstock, Nigerian society of engineers. Tech. Trans., 51: 92-104.
25. Ede, A.N., O.M. Olofinnade, G.O. Bamigboye, K.K. Shittu and E.I. Ugwu, 2017. Prediction of fresh and hardened properties of normal concrete via choice of aggregate sizes, concrete mix-rations and cement. Int. J. Civ. Eng. Technol., 8: 288-301.
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26. Awoyera, P.O. and E.I. Ugwu, 2017. Sustainability and recycling of bamboo for engineering applications. Ref. Module Mater. Sci. Mater. Eng., .
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27. Ugwu, E.I., N.E. Nwogu and E.L. Ikechukwu, 2016. Study on physiochemical parameters of water samples from onuimo river imo state, Nigeria. South Asian J. Eng. Technol., 2: 1-8.
28. Ugwu, E.I., B.O. Chimah and E.L. Ikechukwu, 2016. Qualititative study of pipe-borne water from selected locations in ikwuano, abia state Nigeria. Int. J. Eng. Res. Rev., 4: 52-58.
29. Ugwu, E.I., B.O. Chimah and E.L. Ikechukwu, 2016. Physicochemical and bacteriological assessment of borehole water in umudike, abia state. Int. J. Innovative Res. Adv. Stud., 3: 32-36.
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30. Ugwu, E.I., 2016. Application of grumbel locality constants and empirical approach in estimation of rainfall intensity for drainage design. Int. J. Innovative Res. Adv. Stud., 3: 15-19.
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31. Ugwu, E.I., U. Anasonye and E.L. Ikechukwu, 2016. Physiochemical study of sachet water sold in michael okpara university of agriculture umudike abia state Nigeria. Int. J. Curr. Sci. Res., 2: 640-649.
32. David, O.O., I.U. Emmanuel, B.O. Ifeanyi and O.A. Joel, 2015. Sludge dewatering subjected to constant vacuum pressure: A modeling approach. Int. J. Curr. Res., 7: 11500-11504.
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33. Olukanni, D.O., J.C. Agunwamba and E.I. Ugwu, 2014. Biosorption of heavy metals in industrial wastewater using microorganisms (pseudomonas aeruginosa). Am. J. Sci. Ind. Res., 5: 81-87.
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34. Ede, A.N., O.A. Samuel, I.U. Emmanuel and P.D.E. Chidozie, 2014. Life cycle assessment of environmental impacts of using concrete or timber to construct a duplex residential building. IOSR J. Mech. Civ. Eng., 11: 62-72.
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35. Ugwu, E.I. and C.A. Jonah, 2012. Detoxification of cassava wastewater by alkali degradation. J. Res. Environ. Sci. Toxicol., 1: 161-167.
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