Projects per year
Abstract
Virus contamination of water is a threat to human health in many countries. Current solutions for inactivation of viruses mainly rely on environmentally burdensome chemical oxidation or energy-intensive ultraviolet irradiation, which may create toxic secondary products. Here, we show that renewable plant biomass-sourced colloidal lignin particles (CLPs) can be used as agglomeration agents to facilitate removal of viruses from water. We used dynamic light scattering (DLS), electrophoretic mobility shift assay (EMSA), atomic force microscopy and transmission electron microscopy (AFM, TEM), and UV spectrophotometry to quantify and visualize adherence of cowpea chlorotic mottle viruses (CCMVs) on CLPs. Our results show that CCMVs form agglomerated complexes with CLPs that, unlike pristine virus particles, can be easily removed from water either by filtration or centrifugation. Additionally, cationic particles formed by adsorption of quaternary amine-modified softwood kraft lignin on the CLPs were also evaluated to improve the binding interactions with these anionic viruses. We foresee that due to their moderate production cost, and high availability of lignin as a side-stream from biorefineries, CLPs could be an alternative water pretreatment material in a large variety of systems such as filters, packed columns, or flocculants.
Original language | English |
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Pages (from-to) | 4167-4177 |
Number of pages | 11 |
Journal | ACS Sustainable Chemistry and Engineering |
Volume | 8 |
Issue number | 10 |
DOIs | |
Publication status | Published - 16 Mar 2020 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Colloidal lignin particles
- Lignin nanoparticles
- Virus interaction
- Water treatment
Fingerprint
Dive into the research topics of 'Agglomeration of Viruses by Cationic Lignin Particles for Facilitated Water Purification'. Together they form a unique fingerprint.Projects
- 3 Finished
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CERES: Competence Center for the materials Bioeconomy: A Flagship for our Sustainable Future
01/05/2018 → 31/12/2022
Project: Academy of Finland: Other research funding
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ZELCOR: Zero Waste Ligno-Cellulosic Biorefineries by Integrated Lignin Valorisation
01/10/2016 → 28/02/2021
Project: EU: Framework programmes funding
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Scalable manufacturing of lignin-based functional materials for industrial applications
Sipponen, M.
01/09/2016 → 31/08/2019
Project: Academy of Finland: Other research funding
Equipment
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Bioeconomy Research Infrastructure
Jukka Seppälä (Manager)
School of Chemical TechnologyFacility/equipment: Facility