Company Filing History:
1 out of 1 
1 out of 3 Years Active: 1981
Title: Richard A. Dunham: Innovator in Water Purification
Introduction
Richard A. Dunham is an accomplished inventor based in Casselberry, Florida. He is known for his innovative contributions to water purification technology. His work has significantly impacted the way we treat potable water, ensuring safer drinking water for communities.
Latest Patents
Dunham holds a patent for a water purification method that effectively removes hydrogen sulfide from potable water. The process involves chlorinating the water and then passing it through a bed of activated carbon. Chlorine is added in large doses to convert approximately 90% of the hydrogen sulfide into sulfates. The chlorinated water, which still contains residual hydrogen sulfide, is then treated with activated carbon, where chemisorbed nascent oxygen helps break down the remaining sulfide compounds into elemental sulfur. This innovative method showcases Dunham's commitment to improving water quality.
Career Highlights
Throughout his career, Richard A. Dunham has worked with notable organizations, including the City of Orlando and the Orlando Utilities Commission. His experience in these roles has allowed him to apply his expertise in water treatment and purification, contributing to the development of effective solutions for water quality issues.
Collaborations
Dunham has collaborated with various professionals in his field, including his coworker Theodore C. Pope. These partnerships have fostered innovation and the sharing of ideas, further enhancing the effectiveness of water purification methods.
Conclusion
Richard A. Dunham's contributions to water purification technology exemplify his dedication to improving public health through innovative solutions. His patented method for removing hydrogen sulfide from potable water is a testament to his ingenuity and commitment to environmental sustainability.