Photo of Stephanie Butler Velegol

Stephanie Butler Velegol

Associate Department Head and Teaching Professor


  • Chemical Engineering

224 Chemical and Biomedical Engineering Building


Personal or Departmental Website

Google Scholar Profile

Interest Areas:

Interests: Sustainably water treatment using Moringa oleifera seeds, active learning and flipped classrooms





Journal Articles

  • Marlene C Ndoun, Allan Knopf, Heather E Gall, Michael Mashtare, Stephanie B Velegol, Tamie L Veith and Clinton F. Williams, 2023, "Fixed bed column experiments using cotton gin waste and walnut shells-derived biochar as low-cost solutions to removing pharmaceuticals from aqueous solutions", Chemosphere, 330, (138591)
  • Laxmicharan Samineni, Sophie DeRespino, Mekayla Depaolis, Rashmi Mohanty, Yu-Ming Tu, Sanjana Pemmaraju, Stephanie B Velegol, Debadyuti Ghosh and Manish Kumar, 2023, "Highly effective nanoparticle removal in plant-based water filters", Environmental Science Advances, 2, (8), pp. 1130-1138
  • Marlene C Ndoun, Allan Knopf, Heather E Preisendanz, Natasha Vozenilek, Herschel A Elliott, Tamie L Veith, Michael L Mashtare, Stephanie B Velegol and Clinton F Williams, 2023, "Physicochemical characterization of biochar derived from the pyrolysis of cotton gin waste and walnut shells", Journal of the ASABE, 66, (5), pp. 1163-1174
  • Laxmicharan Samineni, Stephanie B VELEGOL, Manish Ku andar, , 2022, "Effective pathogen removal in sustainable natural fiber Moringa filters", NPJ Clean Water, 5, (27)
  • Matthew Liberatore, Daniel Lepek, Laura P. Ford, Tracy Carter, Jennifer Pascal, Monica Lamm, Christi Patton Luks, David L. Silverstein, Ashlee N. Ford Versypt, Troy Vogel, Stephanie B Velegol, Neha Raikar, Matt J. Kipper and Christy Wheeler West, 2022, "AIChE Virtual Communities of Practice – Supporting Faculty during the COVID-19 Pandemic", Chemical Engineering Education (CEE)
  • Laxmicharan Samineni, Xiong Boya, Manish Kumar, Darrell Velegol, Costas D Maranas, Andrew Pei, Huiran Wang, Roman Dickey, Paula Soto, Lynnicia Massenburg, Thanh Nguyen, Ratul Chowdhury and Stephanie B Velegol, 2019, "7-log virus removal in a simple functionalized sand filter", Environmental Science and Technology, 53, (21), pp. 12706-12714
  • Stephanie B Velegol, Darrell Velegol, Robert Tilton, Brittany A. Nordmark, Todd M. Przybycien, Toni M. Bechtel and John K. Riley, 2018, "Moringa oleifera seed protein adsorption to silica: Effects of water hardness, fractionation, and fatty acid extraction", Langmuir, 34, (16), pp. 4852-4860
  • Boya Xiong, Emma Clement, Bethany Piechowicz, Ziyuhan Wang, Rose Marinaro, Adam Uliana, Manish Kumar and Stephanie B Velegol, 2017, "Moringa oleifera f-sand filters for sustainable water purification", Environmental Science and Technology Letters, 5, (1), pp. 38-42
  • ABUBAKAR Bashir, Boya Xiong, Kathleen Lauser, Manish Kumar, Darrell Velegol and Stephanie B Velegol, 2017, "Effects of moringa oleifera lam. seed maturity and harvesting period on water clarification", Nigerian Journal of Scientific Research
  • Stephanie B Velegol, Manish Kumar, Kathleen Lauser, Kevin Shebek, Allen Schantz and Ian Sines, 2015, "The Flocculating Cationic Polypetide from Moringa oleifera Seeds Damages Bacterial Cell Membranes by Causing Membrane Fusion", Langmuir, 31, (15), pp. 4496–4502
  • Stephanie B Velegol, Sarah E Zappe and Emily Mahoney, 2015, "The Evolution of a Flipped Classroom: Evidence-Based Recommendations", Advances in Engineering Education, 4, (3), pp. n3
  • Huda A. Jerri, Kristin J. Adolfsen, Lauren R. McCullough, Darrell Velegol and Stephanie B Velegol, 2012, "Antimicrobial Sand via Adsorption of Cationic Moringa oleifera Protein", Langmuir, 28, (4), pp. 2262-2268
  • Stephanie B Velegol and Bruce E Logan, 2003, "Macroscopic and nanoscale measurements of the adhesion of bacteria with varying outer layer surface composition", Langmuir, 19, (6), pp. 2366-2371
  • Stephanie B Velegol and Bruce E Logan, 2002, "Contributions of Bacterial Surface Polymers, Electrostatics, and Cell Elasticity to the Shape of AFM Force Curves", Langmuir, 18, (13), pp. 5256–5262
  • Stephanie B Vele andol, , 2000, "Counterion effects on hexadecyltrimethylammonium surfactant adsorption and self-assembly on silica", Langmuir, 16, (6), pp. 2548-2556
  • Stephanie B Velegol, Sarah E Zappe, Minkyung Lee, Esther Gomez and Yu Xia, , "THE IMPACT OF APPLIED IMPROVISATION ON UNDERGRADUATE ENGINEERING STUDENTS’ PROFESSIONAL DEVELOPMENT.", Advances in Engineering Education

Conference Proceedings

  • Mechteld V Hillsley and Stephanie B Velegol, 2023, "Do Small Collaborative Learning Communities within a Larger Class Increase Students’ Sense of Belonging and Learning?", 2023 ASEE Annual Conference and Exposition
  • Stephanie B Vele andol, , 2017, "Middle School Girls as" Experts" to Elementary Students: A Coding Trial (Work in Progress)", ASEE conference proceedings 2017
  • Stephanie B Velegol and Sarah E Zappe, 2016, "How does a flipped classroom impact classroom climate?", ASEE Annual Conference Proceedings 2016
  • Stephanie B Velegol, 2015, "Designing an engineering solution with the 4 P’s: People, Prosperity, Planet, Politics", ASEE Annual Conference Proceedings 2015, ASEE Annual Conference Proceedings, Seattle, Washington
  • Stephanie B Velegol and Kathy Jackson, 2015, "Quiz re-takes: Which students take advantage and how does it affect their performance?", ASEE Annual Conference Proceedings 2015, ASEE Annual Conference Proceedings, Seattle, Washington
  • Stephanie B Velegol, Sarah E Zappe, Mary Lynn Brannon and William D Burgos, 2014, "Online modules enable prerequisite review and mastery during design courses", ASEE Annual Conference Proceedings 2014, ASEE, Indianapolis, IN
  • J. Laman, Stephanie B Velegol and B. Swartz, 2013, "Three Approaches to Flipping CE Courses: Faculty Perspectives and Suggestions", ASEE Annual Conference Proceedings 2013, Proc. ASEE 2003 Annual Conf.
  • Stephanie B Velegol, Lisa G. Bullard, Taryn Melkus Bayles and Kate Cadwell, , "National Trends and Models for Teaching-Track Faculty in Chemical Engineering", 2023 ASEE Annual Conference & Exposition
  • Shawna Dory, Luis Roberto Delgado, Sarah E Zappe, Stephanie Cutler, Esther Gomez and Stephanie B Velegol, , "Examining Gender Inclusivity through Sense of Belonging in a Summer Research Experiences for Undergraduates (REU) Program at a Large Research University", 2023 ASEE Annual Conference & Exposition

Research Projects

Honors and Awards

  • Gary Leach Award, AICHE, November 2022
  • PSEAS Outstanding Teaching Award, PSEAS, October 2022


Service to Penn State:

Service to External Organizations:

  • Other, Administrator, Girls Who Code, January 2017 - May 2018



The Penn State Department of Chemical Engineering, established in 1948, is recognized as one of the largest and most influential chemical engineering departments in the nation.

The department is built upon the fundamentals of academic integrity, innovation in research, and commitment to the advancement of industry.

Department of Chemical Engineering

121 Chemical and Biomedical Engineering Building

The Pennsylvania State University

University Park, PA 16802

Phone: 814-865-2574