Skip to main content Skip to navigation
Biological Systems Engineering Ndegwa Research Site



My interests are in the development of sustainable livestock manure management systems, air and water quality control engineering, bio-energy or bio-fuels, and livestock odor emission control technologies. Specific research themes include: solids-liquid separation for nutrient management; manure characterization; aerobic and anaerobic digestions or treatments (with and without cell-immobilization); Nutrients transport in soils; bio-conversion of livestock waste (composting and vermicomposting); natural livestock-wastewater treatment systems; characterization and quantification of odor, gaseous, and particulate emissions from livestock facilities; and modeling of bio-environmental systems.

Dr. Pius Ndegwa

Email Dr. Ndegwa
(509) 335-8167

Paccar 348
PO Box 646120
Biological Systems Engineering
Washington State University
Pullman, WA 99164-6120

My Research In the News

  • Three Minute Thesis – Femi Peter Alege wins second place overall in the WSU wide competition

    Photo of Femi Peter Alege

    After winning the CAHNRS 2021 3MT competition, Femi Peter Alege, a doctoral student in WSU’s Biological Systems Engineering program, went on to place second and win a $1,500 travel grant in the overall University-wide 3MT competition.

    “Congratulations, Femi, on your second place in the university Three Minute Thesis competition.  You represented CAHNRS very well and we are all very proud of you.” Dr. Richard Zach, Associate Dean for Academic Programs, CAHNRS, WSU.

    “Femi. Congratulations for this very important achievement! Best regards!” Dr. Manuel Garcia-Perez, Department Chair, Biological Systems Engineering, CAHNRS, WSU.

    Click on … » More …

    Read Story