Company Filing History:
7 out of 293 
1 out of 832,843 Years Active: 2020-2025
Title: Innovations by Sakari Halttunen in Wastewater Treatment
Introduction
Sakari Halttunen is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of wastewater treatment, holding a total of 8 patents. His innovative methods focus on improving the efficiency and effectiveness of wastewater management processes.
Latest Patents
One of Halttunen's latest patents is a method for treating wastewater in an activated sludge process. This invention involves a biological treatment step followed by a sedimentation step for the separation of sludge and treated effluent water. The method includes directing a portion of the treated effluent water as a backflow from the sedimentation step to the biological treatment step. The backflow is adjusted to a specific pH value before the addition of a coagulant and/or an oxidant.
Another significant patent is a method for removing dissolved organic compounds from wastewater. This method operates simultaneously in an activated sludge process that includes an aeration tank and a solid-liquid separation unit. It involves adding an aluminum and/or iron-based inorganic metal coagulant to the wastewater during the activated sludge process or prior to its conveyance.
Career Highlights
Throughout his career, Halttunen has worked with various companies, including Kemira Oyj. His experience in the industry has allowed him to develop and refine his innovative approaches to wastewater treatment.
Collaborations
Halttunen has collaborated with several professionals in his field, including Jonni Ahlgren and Marina Shestakova. These collaborations have contributed to the advancement of his research and the successful implementation of his patented methods.
Conclusion
Sakari Halttunen's contributions to wastewater treatment through his innovative patents demonstrate his commitment to improving environmental sustainability. His work continues to influence the industry and pave the way for future advancements in wastewater management.