Minna Lahtinen

Title: Minna Lahtinen: Innovator in Biogas and Nutrient Recovery

Introduction

Minna Lahtinen is a prominent inventor based in Espoo, Finland. She has made significant contributions to the field of biogas processes and nutrient recovery, holding 2 patents that showcase her innovative approach to environmental sustainability.

Latest Patents

One of her latest patents is a biogas process with nutrient recovery. This invention involves a method of two-phase anaerobic digestion, where monitoring and adjusting the nitrogen status enables the maintenance of optimum conditions during the process. The method enhances the use of various feedstock materials and facilitates the monodigestion of a single feedstock. Particularly, the introduction of nitrogen-rich feedstock materials is improved. In the first phase digester, a community of hydrolyzing and acidogenic microorganisms performs ammonification, releasing organic nitrogen as ammonia. Nitrogen and phosphorus are effectively removed and recovered from the digestate, which then undergoes biogasification in the second phase. Additionally, reject water from biogasification can be recycled within the process.

Another significant patent is a method for recovering phosphorus from organic materials. This invention provides a process for producing phosphate from organic material, which includes fermenting the material in a medium with at least one microorganism. The fermentation occurs under specific conditions for a sufficient period to produce a fermentation product. The solids of this product are then treated with acid to solubilize phosphates, particularly from organic materials that include bone suitable for phosphate extraction.

Career Highlights

Minna Lahtinen is associated with Ductor Oy, a company focused on innovative solutions for nutrient recovery and biogas production. Her work at Ductor Oy emphasizes her commitment to advancing sustainable practices in waste management and resource recovery.

Collaborations

Minna collaborates with talented individuals such as Elisa Lensu and Laura Tolvanen, contributing to a dynamic team dedicated to innovation in environmental technologies.

Conclusion

Minna Lahtinen's contributions to biogas processes and nutrient recovery highlight her role as a leading inventor in the field. Her innovative patents reflect a commitment to sustainability and environmental stewardship.