Company Filing History:
4 out of 4 
4 out of 1,200 Years Active: 2011-2017
Title: Der-Ming Lee: Innovator in Wastewater Treatment Technologies
Introduction
Der-Ming Lee is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of wastewater treatment, particularly in developing innovative methods and reactors for treating ammonia-laden wastewater. With a total of 4 patents to his name, Lee's work is recognized for its efficiency and effectiveness in addressing environmental challenges.
Latest Patents
One of Lee's latest patents is a fluidized bed reactor designed specifically for ammonia-laden wastewater. This reactor includes a column, a plurality of carrier particles, a first settling tank, and a fluidizing means. The design allows for the introduction of ammonia-laden wastewater into a fluidizing chamber, where microorganisms such as nitrifying bacteria, anammox bacteria, and heterotrophic denitrifying bacteria work together to transform ammonia into nitrogen. This innovative reactor significantly shortens the start-up time and efficiently treats thin ammonia-laden wastewater.
Another notable patent involves a method for treating wastewater containing tetramethylammonium hydroxide (TMAH) and ammonium nitrogen. This method includes several steps, starting with the introduction of a first solution containing ammonium nitrogen into a reactor with specific microorganisms. The process allows for the gradual increase of TMAH concentration while maintaining denitrification efficiency, effectively treating both TMAH and ammonium nitrogen simultaneously.
Career Highlights
Throughout his career, Der-Ming Lee has worked with various organizations, including Leaderman & Associates Co., Ltd. and National Yang Ming Chiao Tung University. His experience in these institutions has contributed to his expertise in environmental engineering and wastewater treatment technologies.
Collaborations
Lee has collaborated with notable colleagues such as Ming-Kuei Chiang and Chin-Te Chen. These partnerships have further enhanced his research and development efforts in the field of wastewater treatment.
Conclusion
Der-Ming Lee's innovative work in wastewater treatment technologies showcases his commitment to addressing environmental issues through effective solutions. His patents reflect a deep understanding of the complexities involved in treating ammonia-laden wastewater, making him a valuable contributor to the field.