Company Filing History:
3 out of 16 
3 out of 106 
2 out of 17 Years Active: 1997-2023
Title: The Innovative Mind of Risto Hämäläinen
Introduction
Risto Hämäläinen, an accomplished inventor based in Tampere, Finland, has made significant contributions to the field of pulp mill technology through his innovative patents. With a total of six patents, Hämäläinen focuses on developing methods and systems that enhance the efficiency and environmental impact of pulp mills.
Latest Patents
Among his latest innovations is a method and a system for adjusting the S/Na balance of a pulp mill. This invention specifically addresses the process by which a pulp mill's CNCG stream, containing sulfur compounds, is scrubbed with an aqueous solution comprising an alkaline agent. This results in an aqueous spent scrubbing solution rich in sulfides, which is subsequently oxidized in a bioreactor using sulfur-oxidizing microbes. The outcome is an aqueous suspension containing elemental sulfur, which can be separated as a precipitate, while the remaining solution is suitable for replenishing the aqueous scrubbing solution. In another patent, Hämäläinen has refined the process by diverting aqueous pulp mill liquor containing sulfides into a bioreactor for oxidation, facilitating the production of the same elemental sulfur and ensuring optimal utilization of resources.
Career Highlights
Risto Hämäläinen has had a notable career, having worked with two prominent companies in the industry: Metso Power Oy and Valmet Technologies Oy. His experience in these organizations has provided him with valuable insights that have driven his innovations in pulp mill processes.
Collaborations
Throughout his career, Hämäläinen has collaborated with esteemed colleagues including Seppo Tuominiemi and Mikko Anttila. Their combined expertise and teamwork have led to significant advancements in the field, further reflecting the innovative spirit exemplified by Hämäläinen.
Conclusion
Risto Hämäläinen's innovative contributions to the pulp mill industry are notable for their focus on efficiency and sustainability. With his six patents, he continues to influence the evolution of pulp technology, fostering advancements that benefit both the industry and the environment.