Adsorption technique

Adsorption technique is an efficient method for the removal of inorganic and organic pollutants from wastewater streams. The advantages of adsorption are:

  • Effectiveness (also at low contaminant concentrations)
  • Selectivity (tailored adsorbents)
  • Regenerability of used adsorbents
  • Cost-efficiency (low-cost adsorbents)

Researchers in Laboratory of Green Chemistry constantly aim to develop novel adsorption materials for the current challenging applications such as nutrient recovery and wastewater treatment in mining industry.

Ongoing research

Nano- and microcellulose based materials for water treatment applications (NaCeWa)

The focus of the project is to produce and assess the applicability and potential of novel functionalized nano- and microcellulose-based materials for water treatment applications. These materials will be tested in adsorption of metals and anions from aqueous solutions. The special applications will be H2S removal and desalination as well as simultaneous adsorption of cations and anions.

Low-cost adsorbents for the treatment of mining wastewaters

The aim of this project is to study a potential of adsorption technology in the treatment of wastewaters of mining activities. These wastewaters are challenging because they contain besides of toxic metals considerable amounts of sulfuric acid. The main target is to find low-cost adsorption materials that are suitable for this application. These materials can be used as they are or modified if needed and they are not too expensive.

Hydrothermally carbonized biomass for (WetPyro)

Aim of the WetPyro project is to find novel application for the water purification technology. Hydrothermal carbonization for the production of carbonaceous materials is used in this project. As a feedstock we use biomasses from different sources.

Recovery of nutrients by adsorption

The aim of the project is to develop and test novel adsorption materials for the recovery of nutrients such as phosphate, ammonium, and nitrate from wastewaters. Especially, materials are tailored to adsorb both cationic and anionic species. Afterwards these can be separately recovered and reused in applications.

Previous research topics

  • Nanosorbents for heavy metal extraction from low concentrations (MONIWATER)
  • Nanosorbents produced by biosynthesis from natural products and indigenous minerals
  • Preparation of activated carbon from natural products
  • Functionalized adsorbents for heavy metal removal (UMASYS)

Department of Separation Science

Street and postal address:
Sammonkatu 12 (Innovation centre for safety and material technology, TUMA)
50130 Mikkeli, Finland