D.D.Keruyu, Z.I.Oonge, P.K.Ndiba.  2014.  The Effect of Surface Treatment on Corrosion Behavior of 316L Stainless Steel. ICASTOR Journal of Engineering. 7(1)
D.D., K, Z.I. O, P.K. N.  2014.  Application of GIS to Water Quality Management for the City of Nairobi Water Supply.. ICASTOR Journal of Engineering. 7(1):5-23.oonge.docx




N.I, DROONGEZABLON.  2007.  Omosa I and Oonge Z.N.I., Assessment of the Biological Treatability of Black Tea Processing Effluent.. Journal of Civil Engineering Research and Practice Vol.4 No.1, April 2007, pp 65-78.. : World Conference of Phylosophy Proceedings


N.I, DROONGEZABLON.  2006.  Ogaro Lugard Kaunda and Oonge Z.N.I., Cheap Engineering Solutions in Conservation of Natural Resources in Arid and Semi-Arid Lands, A case study of Nuba Mountains, Sudan.. Presented in the 7th International Sudan Studies Conference in University of Bergen, Norway, on 8th of April 2006 to celebrate . : World Conference of Phylosophy Proceedings


N.I, DROONGEZABLON.  2005.  Nyikuri R.N, Oonge Z.N.I., Klein J.and Odira P.M.A, 2005: Trends in Heavy Metal and Faecal Coliform levels in the Rivers of the Nairobi Region and Measures to reduce this Pollution.. Journal of Civil Engineering Research and Practice Vol. 2, No. 2, 2005 pp 61-76.. : World Conference of Phylosophy Proceedings


Eng. Sonko, K(U), Eng. Musimenta J(U), Dr Isaboke OZ(K), Dr Kateyo E(U).  2003.  Environmetnal impact assessment process (legal and institutional aspects, procedures and methodologies). AbstractWebsite

The EIA process is carried out in relatively well known and documented procedures but the approach to and emphasis on these procedures tend to vary from country to country and amongst development agencies. The most varied aspect of EIA process at the country level is the institutional framework for the EIA process management.


N.I, DROONGEZABLON.  1993.  Maillacheruvu K.Y., Parkin G.N., Chen Ye Peng, Wen-Chien Kuo, Oonge Z.I., and Lebduschka V.; 1993; Sulfide Toxicity in Anaerobic Systems Fed Sulfate and Various Organics.. Water Environment Research Vol 65 No. 2 pp 100-109.. : World Conference of Phylosophy Proceedings


N.I, DROONGEZABLON.  1990.  Oonge Z and Parkin G.F. Poisoning of Sulfate Reductions with Molybdenum in Anaerobic Reactors Fed Glucose.. In Proceedings of the 45th Industrial Waste Conference May 8, 9, 10, 1990; Purdue University. : World Conference of Phylosophy Proceedings

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