Valorization of the aqueous phase from hydrothermal carbonization of different feedstocks: Challenges and perspectives

Publisher:
ELSEVIER SCIENCE SA
Publication Type:
Journal Article
Citation:
Chemical Engineering Journal, 2023, 472
Issue Date:
2023-09-15
Full metadata record
Hydrothermal carbonization (HTC) is a promising method for converting wet solid waste into value-added products. Despite the extensive research on the HTC solid fraction, the HTC aqueous phase (AP) has received limited attention. Due to the complex composition of HTC-AP, conventional decontamination technologies are often expensive and inefficient, while causing a waste of resources. This review aims to explore the characteristics of HTC-AP, identify the governing factors, and evaluate various valorization pathways to enable the utilization of HTC-AP. The review also proposes strategies to address the challenges in existing technologies for HTC-AP valorization and treatment, considering their merits and demerits. With the future prospects of valorizing HTC-AP, this review contributes to making HTC a more sustainable and economically viable process for waste management.
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