Comparative environmental assessment of end-of-life carbonaceous water treatment adsorbents
Open accessAbstract
This study evaluates and compares the environmental impacts arising from the disposal of different carbonaceous sorbents used for wastewater treatment. Three different adsorption materials were considered, i.e. activated carbon, biochar and hydrochar, and three end-of-life management approaches, i.e. incineration, regeneration and landfilling. The highest overall environmental impact was of Carcinogenic effects and Freshwater Ecotoxicity due to emissions of heavy metals during production of all types of sorbents. The use of materials with higher adsorption capacities and regeneration of carbonaceous materials were considered and shown to be an efficient way for reducing the overall environmental impacts of the different adsorbents. The compensation of fossil fuel incineration by using recovered heat led to negative impacts in all categories. Recirculation of HTC process water reduced the impact on Freshwater Ecotoxicity and Eutrophication.
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The adsorption performance of activated carbons is influenced by their porosity, surface area, and functional groups, but they can struggle with low molecular weight compounds, quickly saturate with high pollutant loads, and often need energy-intensive regeneration or replacement.
“The adsorption performance of activated carbons is influenced by their porosity, surface area, and functional groups, but they can struggle with low molecular weight compounds, quickly saturate with high pollutant loads, and often need energy-intensive regeneration or replacement (Kozyatnyk et al., 2020).”
From Use of biochar and Moringa oleifera in greywater treatment to remove heavy metals and contaminants of emerging concern (2023) · cites this paper as Kozyatnyk et al., 2020
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Self-citation
- Authors
- Kozyatnyk, I., Yacout, D. M. M., Van Caneghem, J., & Jansson, S.
- Affiliations
- Umeå University (SE)
- Corresponding author
- Jansson, Stina
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2020-04
- Volume
- 302
- Pages
- 122866
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W3002206717
- Cited by
- 87
- References
- 48
- Citations by year
- 2026: 17 · 2025: 17 · 2024: 11 · 2023: 14 · 2022: 18 · 2021: 7 · 2020: 3
- FWCI
- 3.77
- Type
- journal article
- Language
- en
- Open access
- green
- lirias.kuleuven.be
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Lirias (KU Leuven) (submittedVersion, other-oa)
- Funders
- Bio4Energy
- The Kempe Foundation (SMK-1552)
- Topics
- Physical Sciences › Environmental Science › Environmental Engineering › Environmental Impact and Sustainability
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
- Keywords
- carbon adsorbents, end-of-life management, activated carbon, biochar, hydrochar, wastewater treatment, incineration, adsorbent regeneration, landfilling, heavy metal emissions, ecotoxicity, eutrophication, life cycle assessment
- MeSH terms
- Fossil Fuels, Incineration, Water Purification, Wastewater
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