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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

  • Cuts to Manure Gas Earns Student Kudos

    George NeerackalPh.D. student, George Mathew Neerackal, won 2nd place at the Ron Sheffield Memorial Student Poster competition at the Waste to Worth conference, Seattle, WA; March 30-April 03, 2015.

    Poster Title: Manure pH Management for Mitigating Ammonia Emissions from Manure Flush Dairy Barns

    Advisor: Dr. Pius Ndegwa

    Dairy cows produce lots of manure. A WSU student’s research on cutting the environmental impact of all that waste won him second place in a poster competition at Seattle’s annual Waste to Worth conference.

    George Neerackal, who graduates later … » More …

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