William Tarpeh

Last updated
William A. Tarpeh
Education Stanford University
University of California, Berkeley
Awards MacArthur Fellowship
Scientific career
Institutions Stanford University
Doctoral advisor Kara Nelson
Website https://cheme.stanford.edu/people/william-tarpeh

William A. Tarpeh is an Assistant Professor of Chemical Engineering at Stanford University. [1] Tarpeh is a 2025 MacArthur Fellow. [2] [3] Tarpeh's research is centered around recovering valuable resources from wastewater. He is a fellow of the Stanford Precourt Institute for Energy and the Stanford Woods Institute for the Environment. [4]

Contents

Education

Tarpeh obtained his BS in chemical engineering at Stanford University in 2012 (minoring in African Studies [5] ), and his MS and PhD in environmental engineering at University of California, Berkeley (in 2013 and 2017, respectively). [6] He was a Ron Brown Scholar (2008) [7] and a 28twelve Foundation Fellow (2014). [8] Tarpeh conducted postdoctoral research at the University of Michigan. [9]

Tarpeh attended Thomas Jefferson High School for Science and Technology in Fairfax, Virginia. [5]

Honors

In 2023, Tarpeh was named among "AIChE’s 35 Under 35" [10] and the "2023 Rising Stars in Environmental Research" by ACS Environmental Au, [11] and in 2018 among the "Forbes 30 under 30 - Science". [12] [13] In 2016, Tarpeh was named by NBC in its NBCBLK28, as one of 28 African American innovators under the age of 28. [14] [15] Tarpeh is a Cooke Young Scholar and College Scholar of the Jack Kent Cooke Foundation, [16] and he received the foundation's 2020 Quinn Prize. [5] [17] Tarpeh also won Jeopardy Kids Week at the age of twelve. [18]

In 2025, Tarpeh earned a MacArthur Fellowship. [2] [3] [19] Previously, he received a 2024 National Science Foundation CAREER Award, [20] a 2022 Camille Dreyfus Teacher-Scholar Award, [21] and the 2023 Paul L. Busch Award, a $100,000 research prize presented by the Water Research Foundation. [22]

In 2024, Tarpeh gave a talk at the 2024 Stanford Reunion Homecoming. [23]

Research

Tarpeh conducts research in global sanitation in the field of development engineering, [24] to recover resources from wastewater, [13] turning waste chemicals into products such as fertilizers and disinfectants and cleaning the water in the process. [25] During his PhD work, he developed a method for creating fertilizer by extracting nitrogen from urine and combining it with water. [13] Tarpeh continues to engineer new chemical processes to extract nutrients from urine and is considered a burgeoning leader in his field. [26]

Tarpeh's projects include ammonia recovery from wastewater, as well as the removal of lithium from spent batteries and its reusal. [4] He develops resource recovery technologies to recycle nitrogen, sulfur, and phosphorus with minimal infrastructure and energy. [27] Tarpeh leads pilot projects in Kenya and California, in an effort to transform how communities deal with pollution, fertilizer shortages, and climate change. [28]

Tarpeh's work has been featured in short videos by the Jack Kent Cooke Foundation, [29] Interesting Engineering, [30] and the University of California, Berkeley. [31]

References

  1. "William A. Tarpeh - Chemical Engineering". Engineering, Stanford University. Retrieved 2019-03-03.
  2. 1 2 "William Tarpeh, Chemical Engineer, 2025". MacArthur Foundation . Retrieved 2025-10-10.
  3. 1 2 "MacArthur Foundation Announces 2025 'Genius Grant' Winners". The New York Times . Retrieved 2025-10-10.
  4. 1 2 Chrobak, Ula (October 9, 2025). "William Tarpeh receives MacArthur Fellowship". Stanford University . Retrieved 2025-10-10.
  5. 1 2 3 Karwoski, Laura (October 9, 2025). "Cooke Alum William Tarpeh Awarded 2025 MacArthur Fellowship". Jack Kent Cooke Foundation . Retrieved 2025-10-10.
  6. "William Tarpeh - Stanford Profile". Stanford Profiles. Retrieved 2019-03-03.
  7. "2008, William A. Tarpeh, PhD". Rob Brown Scholar Program. Retrieved 2025-10-10.
  8. "PhD, William Tarpeh" . Retrieved 2025-10-10.
  9. Roberts, Tara (October 23, 2024). "William Tarpeh: Creativity leads to innovative wastewater transformations". Stanford University School of Engineering . Retrieved 2025-10-10.
  10. "AIChE's 35 Under 35: This Year's Young Trailblazers". American Institute of Chemical Engineers. October 2023. Retrieved 2025-10-10.
  11. Cousins, Ian T.; Hornbuckle, Keri C.; Li, Xiang-Dong (March 1, 2024). "ACS Environmental Au Recognizes 2023 Rising Stars in Environmental Research". ACS Environmental Au, American Chemical Society . Retrieved 2025-10-10.
  12. "Alumnus William Tarpeh named among Forbes 30 under 30 for 2018". Civil and Environmental Engineering, UC Berkeley. Retrieved 2019-03-03.
  13. 1 2 3 "William Tarpeh - Forbes 30 under 30 - Science 2019". Forbes. Retrieved 2019-03-03.
  14. "NBCBLK28: William Tarpeh: Putting a New Spin on Reuse and Recycle". NBC News. Retrieved 2019-03-03.
  15. "Introducing the NBCBLK28". NBC News. Retrieved 2019-03-03.
  16. "Jack Kent Cooke Foundation Scholar - William Tarpeh". Jack Kent Cooke Foundation. Retrieved 2025-10-10.
  17. William Tarpeh - 2020 Quinn Prize Recipient on YouTube
  18. "Sandburg Student in Jeopardy — the Television Show". www.connectionnewspapers.com. Retrieved 2019-03-21.
  19. Walsh, Elizabeth (October 10, 2025). "Chemical engineer and structural biologist among 2025 MacArthur Fellows". Chemical & Engineering News . Retrieved 2025-10-10.
  20. "Congratulations to William Tarpeh: 2024 recipient of the NSF CAREER Award". Stanford University. February 13, 2024. Retrieved 2025-10-10.
  21. "2022 Camille Dreyfus Teacher-Scholar Awards". The Camille and Henry Dreyfus Foundation. May 5, 2022. Retrieved 2025-10-10.
  22. "WRF Presents $100K Research Award To Advance Wastewater Resource Recovery". October 11, 2023. Retrieved 2025-10-10.
  23. Chrobak, Ula (December 9, 2024). "William Tarpeh is turning wastewater into critical resources". Stanford University School of Engineering . Retrieved 2025-10-10.
  24. ""Imagining the Future Helps Us Engineer Toward that Future": A Q&A with Will Tarpeh". Blum Center for Developing Economies, The University of California, Berkeley. Retrieved 2019-03-06.
  25. "Can we recover valuable chemicals from sewage?". Stanford Earth, Stanford University. Retrieved 2019-03-06.
  26. Myers, Andrew (2019-02-26). "Can we recover valuable chemicals from sewage?". Stanford Earth. Retrieved 2025-10-10.
  27. "William Tarpeh awarded MacArthur 'genius' fellowship". UC Berkeley College of Engineering. October 8, 2025. Retrieved 2025-10-10.
  28. Courquet-Lesaulnier, Liz (October 8, 2025). "Meet the 5 MacArthur 'Geniuses' Making the Future Black and Brilliant" . Retrieved 2025-10-10.
  29. "NBC News Honors Cooke Scholar William Tarpeh". Jack Kent Cooke Foundation. 2016-02-22. Retrieved 2025-10-10.
  30. PhD Student Engineered a Way to Change Pee into Fertilizer , retrieved 2019-03-21
  31. UC Berkeley (2015-11-16), Berkeley student turns urine into fertilizer to feed the world , retrieved 2019-03-21