Hyung-Sool Lee

Title: Innovations of Hyung-Sool Lee

Introduction

Hyung-Sool Lee is a notable inventor based in Waterloo, Canada. He has made significant contributions to the field of environmental technology, particularly in the development of sensors and processes that enhance the efficiency of biological systems. With a total of 3 patents, his work focuses on improving the measurement and management of organic carbon in water and wastewater.

Latest Patents

One of his latest inventions is the Biocapacitive BOD sensor. This innovative sensor utilizes a biofilm capacitance microbial electrochemical cell (MEC) to measure organic carbon in water and wastewater rapidly and accurately, represented by the 5-day biochemical oxygen demand (BOD). The MEC operates alternately in charging (open circuit) and discharging (closed circuit) conditions, which enhances its sensitivity, response time, and accuracy. The sensor can detect BOD concentrations ranging from 5 to 250 mg/L, with a reliability of R>0.9. It allows for BOD measurements every 2 minutes, facilitating semi-continuous quantification of organic carbon.

Another significant patent involves the use of bicarbonate and carbonate as hydroxide carriers in a biological fuel cell. This invention addresses the pH gradient issue between anode and cathode compartments in biological fuel cells or electrolytic cells, which can limit voltage efficiency. By introducing acid to the cathode compartment in the form of carbon dioxide, the pH gradient is reduced, thereby increasing voltage efficiency and power output. This process also includes recycling carbon dioxide produced in the anode chamber back to the cathode chamber.

Career Highlights

Hyung-Sool Lee has worked with reputable institutions such as Arizona State University and Oz Optics Limited. His experience in these organizations has contributed to his expertise in environmental technology and innovation.

Collaborations

Throughout his career, he has collaborated with notable individuals, including Bruce E Rittmann and Junseok Chae. These collaborations have further enriched his research and development efforts.

Conclusion

Hyung-Sool Lee's contributions to environmental technology through his innovative patents demonstrate his commitment to improving the efficiency of biological systems. His work continues to have a significant impact on the field, particularly in the management of organic carbon in water and wastewater.