M.Sc. in I. M. Gubkin Moscow Institute of the Petrochemical and Gas Industry.
The research topics are the following: Mechanical engineering, Polymeric and composite materials, waste water treatments.
Actual position: Professor in Physics Department, National University of Costa Rica.
Director of Industrial Materials Laboratory (LAMI), www.una.ac.cr/lami
Coordinator of Water treatment Laboratory, Water resources Center HIDROCEC, Liberia, Costa Rica.
More than 60 publications
1. Nikolaeva,E.Sanchez,R.Borja, otros Treatment of piggery wastes by anaerobic fixed bed reactor and zeolite bed filter in a tropical climate: a pilot scale study. Process Biochemistry 38 (2002),405-409.
2. Oscar Umañaa, Svetlana Nikolaevaa, Enrique Sáncheza The Role of the Depth in the Performance of Down-Flow Anaerobic Fixed-Bed Reactors Packed with Clay Rasching Rings While Treating Piggery Waste. J. Environ. Sci. Health, Part B.Vol.B42, No.6 (2007).
3. Oscar Umañaa, Svetlana Nikolaevaa, Enrique Sáncheza, Rafael Borjab,* Treatment of screened dairy waste by upflow anaerobic fixed bed reactor packed with tyre rubber and zeolite: Effect of the hydraulic retention time. Bioresource Technology,2008.