Dr. Ernest Blatchley

Professor

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Biography

Ernest R. Blatchley III is the Lee Rieth Professor of Environmental Engineering in the Lyles School of Civil and Construction Engineering and the School of Sustainability at Purdue University. He holds a Ph.D. from the University of California, Berkeley, and specializes in environmental engineering. His research focuses on physico-chemical processes in environmental engineering, with a keen interest in disinfection processes for water and wastewater treatment, including UV-based advanced oxidation techniques and swimming pool chemistry. His teaching encompasses a variety of courses, such as Introduction to Environmental Engineering and courses on Photochemical Reactors and Water Supply for Developing Countries. Blatchley's contributions have been recognized through several awards, including the Harold Munson Outstanding Teacher Award and the Roy E. Myrna G. Wansik Research Leadership Award. He has authored numerous publications in high-impact journals, emphasizing the importance of UV disinfection as a tool in public health and water safety. Blatchley's patents focus on innovative solutions for UV disinfection in various applications. As an active member of the American Society of Civil Engineers, he continues to engage in service-learning projects aimed at providing clean water in developing regions.

Research Interests

Experience

Lee Rieth Professor

1998-01-01 — Present

Purdue University • West Lafayette, IN

Teaching and researching in Environmental Engineering, focusing on water and wastewater treatment, and disinfection processes.

Awards

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Harold Munson Outstanding Teacher Award

1997-01-01
#

Roy E. Myrna G. Wansik Research Leadership Award

1998-01-01
#

William Edgar Award for Pioneering Research

2005-01-01
#

Engagement Service Award

2016-01-01
#

SEEE Instructional Excellence Award

2021-01-01

Patents

Apparatus Improving UV Dosage Applied Fluids Open Channel UV Disinfection Systems

5,952,663 1999-09-14

An innovation to enhance UV disinfection in open channel systems.

https://patents.google.com/patent/5,952,663

Dyed Microspheres Characterization Photochemical Reactor Behavior

7,842,512 2010-11-30

Characterizes the behavior of photochemical reactors using dyed microspheres.

https://patents.google.com/patent/7,842,512

Continuous-Flow Solar Ultraviolet Disinfection System Water

9,546,100 2017-01-17

A solar UV disinfection system for continuous water treatment.

https://patents.google.com/patent/9,546,100

Chlorination/UV Process Decomposition Detoxification Microcystin-LR

10,662,100 2020-01-26

A process to detoxify microcystin-LR using chlorination and UV treatment.

https://patents.google.com/patent/10,662,100

Methods Systems Separation Chloramines Aqueous Solutions

11,084,738 2021-08-10

Methods for separating chloramines from aqueous solutions.

https://patents.google.com/patent/11,084,738

Requirements for Purdue University

Master Program
Requirements
GPA Requirement
Required:3.5
TOEFL
Listening
Required:22
Reading
Required:22
Writing
Required:22
Speaking
Required:22
Total
Required:100
IELTS
Listening
Required:7
Reading
Required:7
Writing
Required:7
Speaking
Required:7
Overall
Required:7.5
Duolingo
Overall Score
Required:135
Overall
Required:135
Prerequisites
Bachelor's degree in CS or related field Foundational concepts of computer science Data structures Computer architecture Operating systems Mathematics through differential equations Linear and matrix algebra
Application Checklist
  • Official Transcripts
  • Academic Statement of Purpose
  • Personal History Statement
  • Resume
  • Three Letters of Recommendation
  • CS Supplementary Form
Specialization Notes

GRE is not required.