Company Filing History:
17 out of 21,351 
1 out of 1 Years Active: 1999-2008
Title: Junji Hirotsuji: Innovator in Sludge Treatment Technologies
Introduction
Junji Hirotsuji is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of environmental technology, particularly in sludge treatment methods. With a total of 18 patents to his name, Hirotsuji's work focuses on improving the efficiency of phosphorus recovery and reducing sludge volume.
Latest Patents
Hirotsuji's latest patents include a sludge treatment method that enhances phosphorus recovery rates. This innovative method involves foaming a sludge-containing liquid by introducing an ozone-containing gas. It also includes a step where phosphorus is eluted from the sludge by bringing the sludge, which is adsorbed on bubbles, into contact with a sludge-dissolving agent. Additionally, the method may involve separating the phosphorus-eluted sludge into a phosphorus eluate and residual sludge, followed by the precipitation of a phosphorus compound using a coagulant.
Another notable patent is the sludge treatment apparatus, which employs similar principles to improve phosphorus recovery and sludge volume reduction. This apparatus is designed to facilitate the efficient elution of phosphorus from sludge, contributing to more sustainable waste management practices.
Career Highlights
Throughout his career, Junji Hirotsuji has worked with notable organizations, including Mitsubishi Electric Corporation and the Japanese Research & Development Association for Environment Friendly Processing in Food Industry. His experience in these companies has allowed him to develop and refine his innovative sludge treatment technologies.
Collaborations
Hirotsuji has collaborated with esteemed colleagues such as Shigeki Nakayama and Yasuhiro Tanimura. Their combined expertise has contributed to advancements in environmental processing technologies.
Conclusion
Junji Hirotsuji's work in sludge treatment technologies exemplifies his commitment to environmental sustainability. His innovative methods and apparatuses are paving the way for more efficient waste management solutions.