Member introduction

Mari, is head of the Laboratory of Separation and Purification  at Lappeenranta University.


She has a long history in separation processes especially related to membranes. Over the years she has applied membrane technology to many challenges. Her knowledge of industrial applications and the ability to combine her strengths with the strength of her team result in concrete solutions to both current and future industry needs.

Mari’s experience includes;

  • Treatment of different forest industry and biorefinery process streams as well as different streams from food industry and different wastewaters; recovery of valuable compounds (for instance hemicelluloses, lignin, cellulose, hydroxy acids, nutrients, proteins, sugars, acids); closing of water cycles; wastewater treatment
  • Use of membranes in extreme conditions present and understanding on that how membranes are changed due to the extreme conditions and how they withstand the extreme conditions (high/low pH, temperature, pressure, solvents)
  • Tailoring separation in membrane applications
  • Real-time monitoring of fouling and development of methods for i fouling mechanisms studies
  • Development of pretreatment processes and strategies to minimize fouling in different membrane filtration applications
  • Use of novel solvents (deep eutectic solvents) in recovery of valuable compounds from biomass and the use of them in membrane manufacturing
  • Recycling of deep eutectic solvents and ionic solvents
  • Development of novel methods for fouling analysis

Mari is the Director of the Re-source Platform

  •  LUT RE-SOURCE addresses the need to transition from a LINEAR ECONOMY to a CIRCULAR ECONOMY with novel separation and purification processes that achieve a new level of raw material efficiency and optimised use of water and energy, enabling the cost-efficient and sustainable use of waste as a resource. They also develop sustainable business models and an understanding of customer needs and market knowledge for the future.
  • The platform consists of 19 research groups working at LUT, which carry out their research in platform research teams:
  • Fin out more about the Re-Source platform

This member is

  • Expert

Member's key competencies

Industry served

  • Battery metals
  • Biomaterials/biorefinery
  • Circular economy
  • Fertilizer/nutrients
  • Food & beverage
  • Metals & mining
  • Pharmaceutical / health
  • Pulp & paper
  • Sidestreams / recycling
  • Water and wastewater


  • Application
  • Consultancy
  • Industry
  • R&D
  • Technology

Technologies and solutions

Separation technologies

  • Membranes/filters
  • Water treatment technologies

Separation solutions

  • Biobased separation and valorization
  • Biochemicals and bioenergy separation solutions
  • Contaminent/pollutant removal
  • Metal/REE recovery and recycling
  • Nutrient recovery and recycle
  • Recovery and recycling of valuable compounds
  • Recycling (residues/sidestreams/waste)
  • Solvent/ionic liquid/eutectic solvent use/ recovery/reuse
  • Water and wastewater treatment and reuse

Supporting technologies and services

  • 3D printing
  • New business models
  • Process optimization & efficiency
  • Realtime monitoring

Member's place in the value chain

  • Components
  • Technology development
  • OEM
  • Technology provider
  • System integrator
  • Full plant delivery
  • EPC
  • Consumables
  • Service provider
  • Enduser/producer

Consortium partners

  • Build consortium
  • Co-ordinate the Writing process
  • Coordinator
  • Partner
  • Provide piloting site
  • Steering team participant
  • Writer

Member's projects