Biomass as source for hydrochar and biochar production to recover phosphates from wastewater: A review on challenges, commercialization, and future perspectives.
Gopinath, Kannappan Panchamoorthy
KAUST DepartmentClean Combustion Research Center, King Abdullah University of Science and Technology, Thuwal, 23955, Saudi Arabia.
Embargo End Date2023-07-22
Permanent link to this recordhttp://hdl.handle.net/10754/670262
MetadataShow full item record
AbstractExcessive phosphate run-off with total phosphorus concentration greater than 20 μg P L−1 triggers the growth of harmful algal species in waterbodies and potentially leads to eutrophication. This has severe negative implications on aquatic environment and impacts human health. The annual economic impact of harmful algal blooms is reported to be as high as $\$$25 million for public health and commercial fishery sector, $\$$29 million for recreation/tourism sector and $\$$2 million for monitoring and management. Adsorption is widely considered as an effective and economic strategy to achieve extremely low concentration of phosphorus. The char produced by valorizing various waste biomasses have been gaining attention in phosphorus remediation owing to their availability, their ability to regenerate and reuse. This review paper exclusively focuses on utilizing hydrochar and biochar synthesized from waste biomass, respectively, through hydrothermal carbonization and slow pyrolysis to mitigate phosphorus concentration and potential strategies for handling the spent char. The key mechanisms involved in phosphate adsorption are electrostatic interaction, ion exchange and complexation. The maximum adsorption capacity of hydrochar and biochar ranges from 14–386 mg g−1 and 3–887 mg g−1, respectively. Hydrochar and biochar are cost-effective alternative to commercial activated carbon and spent char can be used for multiple adsorption cycles. Furthermore, extensive research studies on optimizing the feedstock, reaction and activation conditions coupled with technoeconomic analysis and life cycle assessment could pave way for commercialization of char-based adsorption technology.
CitationShyam, S., Arun, J., Gopinath, K. P., Ribhu, G., Ashish, M., & Ajay, S. (2022). Biomass as source for hydrochar and biochar production to recover phosphates from wastewater: A review on challenges, commercialization, and future perspectives. Chemosphere, 286, 131490. doi:10.1016/j.chemosphere.2021.131490
SponsorsThis work was supported by the state and federal funds appropriated to The Ohio State 570 University, Ohio Agricultural Research and Development Center (SEEDS Award No. 571 OHOA1642).
- Phosphate and ammonium sorption capacity of biochar and hydrochar from different wastes.
- Authors: Takaya CA, Fletcher LA, Singh S, Anyikude KU, Ross AB
- Issue date: 2016 Feb
- CO<sub>2</sub> capture by adsorption on biomass-derived activated char: A review.
- Authors: Goel C, Mohan S, Dinesha P
- Issue date: 2021 Jul 26
- Hydrothermal carbonization of distillers grains with clay minerals for enhanced adsorption of phosphate and methylene blue.
- Authors: Xu Q, Liu T, Li L, Liu B, Wang X, Zhang S, Li L, Wang B, Zimmerman AR, Gao B
- Issue date: 2021 Nov
- Waste-to-wealth application of wastewater treatment algae-derived hydrochar for Pb(II) adsorption.
- Authors: Yu J, Tang T, Cheng F, Huang D, Martin JL, Brewer CE, Grimm RL, Zhou M, Luo H
- Issue date: 2021
- Purification of Wastewater from Biomass-Derived Syngas Scrubber Using Biochar and Activated Carbons.
- Authors: Catizzone E, Sposato C, Romanelli A, Barisano D, Cornacchia G, Marsico L, Cozza D, Migliori M
- Issue date: 2021 Apr 16