Dr. Douglas Okerio Onyancha

Work Experience

1. 2015 – To Present: Senior Lecturer – Dedan Kimathi University of Technology (DeKUT)
2. August 2012 – 2015: Lecturer – Dedan Kimathi University of Technology

Other University and National Responsibilities

1. 2015 – To date: Dean, School of Science DeKUT
2. September 2012 – 2015: Chairperson Chemistry Department -DeKUT

Social Responsibilities

Chairperson Kenya Chemical Society Mt. Kenya chapter

Publications

i)        Peer Reviewed Journal Publications

a. Impact Assessment of a Facility Layout on Manufacturing Cycle Time and Throughput: A Case Study of a Tannery in Central Kenya. Wangari P. N., Muchiri P. N. and Onyancha D. O. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) Volume 15, Issue 5 Ver. I (2018), PP 40

b. Modeling H₂S Dispersion from Proposed Menengai Geothermal Powerplant. Beatrice Nyairo, Douglas Onyancha. Shodhshauryam, International Scientific Refereed Research Journal 2018. [ 1 (4) : 42-49]

c. Assessment of Terrestrial Radioactivity Distribution in Olkaria Geothermal Field, Kenya. Solomon Namaswa, Nicholas Mariita, Douglas Onyancha and Judith Kananu. International Journal of Scientific Research in Science, Engineering and Technology vol.4 issue 4. 2018; 810

d. Biosorption studies of lead and copper using Rogers mushroom biomass ‘Lepiotahystrix’. ZachariaKariuki  , Jackson Kiptoo  , Douglas Onyancha. South African journal of chemical engineering 23 (2017) 62e70

e. Synthesis, Characterization and X-Ray Structure of Ferrocenyl N-Heterocyclic Carbene Complexes of Rhodium(I) Douglas Onyancha , Cedric McCleland and Thomas Gerber. ChemSci J 2016, 7:1

f. 1-(4-Ferrocenylphenyl)-3-methylimidazolium iodide monohydrate. Douglas Onyancha, Cedric McCleland, Thomas I.A. Gerber, Eric Hosten and Peter Mayer, ActaCrystallographica Section E. 2010, E66, m49.

g. Synthesis and characterization of palladium (II) and platinum (II) complexes with ferrocenylimidazole. Vincent O. Nyamori, DouglasOnyancha, Cedric W. McCleland, Christopher Imrie and Thomas I.A. Gerber, Journal of Organometallic Chemistry, 2009,694, 1407-1418.

h. Solvent-free reactions of N,N′-thiocarbonyldiimidazole with ferrocenylcarbinols. DouglasOnyancha, Vincent Nyamori, Cedric W. McCleland, Christopher Imrie and Thomas I.A. Gerber. Journal of Organometallic Chemistry, 2009,694, 207-212.

i. Studies of chromium removal from tannery wastewaters by algae biosorbents, Spirogyra condesata and Rhizocloniumhiorogyphicum. Douglas Onyancha, Ward Mavura, J. Catherine Ngila, Peter Ongoma, Joseph Chacha. Journal of Hazardous Materials 158 (2008) 605-614.

ii)      Publications in conference proceedings

a.       Investigation of silica scale control parameters: a case for Olkaria geothermal field (2018).  Edwin Wafula and Douglas Onyancha. DeKUT international conference

Papers presented in Conferences, Seminars and Workshops

1. Synthesis, Characterization and X-ray structure of Ferrocenyl-N-heterocyclic carbene complexes of Rhodium (I). The 8^th international conference of the Kenya Chemical Society University of Nairobi, Nairobi Kenya May 2015.

2. Synthesis of functionalized carbazoledendrimers and their application in catalysis. CATSA 2011,, November 2011 , Misty Hills, Gauteng, South Africa

3. Carbazole based metallodendrimers, synthesis and application. South African Chemical Institute (SACI),40^th National Convention, Wits University. January 2011.

4. Novel Ferrocenylimidazolium Salts and FerrocenylN-Heterocyclic Carbene Complexes: Synthesis and Characterization. 11^th Frank Warren conference 2010, January 2010, Pietermaritzburg, South Africa.

5. Reactions of 4-Ferrocenylbenzyl-1H-imidazole carboxylate with K₂PtCl₄, K₂PdCl₄ and Alcohol, South African Chemical Institute (SACI), 39^th National Convention, Stellenbosch, South Africa. December 2008.

6. Solvent-Free Reactions of Ferrocenylcarbinols. Synthetic Route to Carbonodithioates and Thiocarbonylimidazolides. The Eastern Cape (SACI) Annual Post Graduate Seminar, Rhodes University, South Africa.

7. Interesting Solvent-Free Reactions of N,N’-Thiocarbonylimidazole with Ferrocenyl­carbinols. Useful Synthetic Route to Carbonodithioates and Thiocarbonylimidazolides. South African Chemical Institute (SACI) Conference on Inorganic Chemistry, (INORG 2007), Club Mykonos, West coast, South Africa. July 2007.

8. Recovery of Chromium from Leather Tannery wastes by use of Freshwater algae(Spirogyra condensata) as Biosorbent. The 5th Kenya Chemical Society conference, August 2005, Kenyatta University, Nairobi, Kenya.

Awards, Scholarships  and Recognitions

Certificate of recognition by COMESA/ALLPI (2018).  Participation and contribution to research and development in the leather sector at the national and Region in collaboration with Africa leather and leather products institute.

Research

a).  Research funding

• Switch Africa green/ COMESA /ALLPI                USD 5480.00     2017

Postgraduate Thesis Supervision and Examination (Start with the most current, completed and then ongoing)

i) Masters

1. Beatrice nyairo, MSc. Geothermal. Modeling h₂s dispersion from Menengai geothermal powerplant – 2019
2. Pauline wangari: MSc Industrial Engineering. Productivity improvement through layout optimization Case study-Sagana tanneries – 2019
3. EvalyeneNtakira: MSc. Industrial engineering. Productivity analysis and improvement. Case-study Sagana tanneries –
   2019
4. Mr.EdwiniWanyonyi, MSc. Geothermal technology.  Prevention of Scaling in wells in OLkaria geothermal  field-Kenya-completed – 2018
5. Solomon Namaswa. MSc. Geothermal. assesment of terrestrial radioactivity distribution in olkaria geothermal field and its environmental implications – 2017
6. Mr. Zackary Kariuki, MSc. Chemistry, Jomo Kenyatta University of Agriculture and Technology, Heavy metal recovery using mushroom biosorbents.-completed – 2017
7. Stephen Mutindwa,  MSc. Industrial engineering; Determinants of technology adoption in leather footwear and leather goods manufacturing in Kenya – on going
8. Janet Messa, MSc. Leather technology. Determination of the quality of Leather shoes: a case study of children’s shoes produced by smes in Kariokor market, Nairobi, kenya – on going
9. Charles Owino,MSc. Leather technology.Bio-sorption of chromium (iii) from tannery effluent using chemically modified Arabica coffee husks – on-going

Research Interests

Inorganic catalysis, Organometallics, Material science

Affiliation/Membership to Professional Bodies

Member of the Kenya chemical society