North Carolina State University (NC State) is a leading public research university located in Raleigh, North Carolina, USA. NC State is a powerhouse in science, technology, engineering
and math. Our team has perfected the Excluder since 2011 and tested prototypes in Ghana, India, Kenya, Madagascar, Malawi, Rwanda, South Africa, and Zambia.
Dr. Francis de los Reyes is a Professor of Civil, Construction, and Environmental Engineering and Associate Faculty of Microbiology. He has led the Excluder since its inception in 2011 and overseen field-testing trials in South Africa, Malawi, India, Zambia, Kenya, Rwanda, Madagascar, and Ghana. Throughout field-testing, he has tested over 4 prototypes, to improve technology performance and incorporate user feedback for a user-friendly design.
Tate Weston Rogers, Francis L. de los Reyes III, Walter J. Beckwith, Robert C.Borden; Power earth auger modification for waste extraction from pit latrines. Journal of Water, Sanitation and Hygiene for Development 1 March 2014; 4 (1):72–80. doi: https://doi.org/10.2166/washdev.2013.183
Tracey Sisco, Tate Rogers, Francis de los Reyes III; Modified Auger for Pit Latrine Desludging in Developing Countries, Procedia Engineering, 2015; 107: 427-429. doi: https://doi.org/10.1016/j.proeng.2015.06.101.
Rashid Chiposa, Rochelle H. Holm, Chimuleke Munthali, Russel C. G. Chidya, Francis L. de los Reyes, III. Characterization of pit latrines to support the design and selection of emptying tools in peri-urban Mzuzu, Malawi. Journal of Water, Sanitation and Hygiene for Development (2017) 7 (1): 151–155. https://doi.org/10.2166/washdev.2017.096
Drew Capone, Petros Chigwechokha, Francis L. de los Reyes III, Rochelle H. Holm, Benjamin B. Risk, Elizabeth Tilley, Joe Brown. Impact of sampling depth on pathogen detection in pit latrines, PLOS Neglected Tropical Diseases, 2 March 2021. doi: https://doi.org/10.1371/journal.pntd.0009176
Nicola Greene, Sarah Hennessy, Tate Rogers, Jocelyn Tsai, Francis de los Reyes III. The role of emptying services in provision of safely managed sanitation: A classification and quantification of needs of LMICs, Journal of Environmental Management, 11 April 2021, 290. doi: https://doi.org/10.1016/j.jenvman.2021.112612
Giovanna Portiolli, Tate Rogers, Walter Beckwith, Jocelyn Tsai, Payan Ole-moiyoi, Noel Wilson, Francis de los Reyes III. Development of trash exclusion for mechanized pit latrine emptying. 12 August 2021. doi: https://doi.org/10.1039/D1EW00383F
Learn more about the Excluder and see how you can improve pit latrine emptying.
