Company Filing History:
1 out of 1 
1 out of 16,080 
1 out of 832,761 Years Active: 1982-1993
Title: Innovations by Henry P Sheng
Introduction
Henry P Sheng is an accomplished inventor based in Claremont, CA. He holds a total of 3 patents that showcase his expertise in environmental technology and waste management. His innovative approaches have contributed significantly to the field, particularly in the treatment of industrial wastewater.
Latest Patents
One of Sheng's latest patents focuses on the treatment of sodium nitrite-containing boiler wastewater. This integrated process effectively addresses the challenges posed by wastewater from steam boiler clean operations, which often contains sodium nitrite and heavy metal ions such as Cu, Fe, Pb, Cr, Cd, Zn, and Ni. The process involves adding sulfamic acid to the wastewater to form gaseous nitrogen, which occurs at ambient temperature and atmospheric pressure. An alkali, such as sodium hydroxide, is then added to raise the pH to about 10, facilitating the precipitation of metal ions. The resulting wastewater is treated to remove nitrite, metal ions, suspended solids, and sludge, making it suitable for discharge into sewers.
Another significant patent by Sheng is an apparatus designed for neutralizing and removing fumes. This apparatus effectively handles both basic and acidic fumes, utilizing a vertically extending, columnar housing. It features a cylindrical gas flow passage and a tangential gas inlet, ensuring efficient gas flow and absorption of fumes in a liquid solvent. The design includes coalescing and absorption apparatuses that work together to purify gaseous streams, demonstrating Sheng's commitment to innovative environmental solutions.
Career Highlights
Throughout his career, Henry P Sheng has worked with notable organizations, including Fume-Klean and the United States Navy. His contributions to these companies have been instrumental in advancing technologies related to fume neutralization and wastewater treatment.
Collaborations
Sheng has collaborated with esteemed colleagues such as Martin E Tellkamp and Bingham Y Pan. Their combined expertise has further enhanced the impact of Sheng's innovations in the field.
Conclusion
Henry P Sheng's work exemplifies the importance of innovation in environmental technology. His patents reflect a dedication to improving wastewater treatment processes and fume neutralization, contributing to a cleaner and more sustainable future.