article · Water
Hydrothermal carbonisation (HTC) converts organic biomass components, including cellulose and lignin, into valuable carbon materials, gases, and inorganic salts. This transformation occurs via processes of hydrolysis, degradation, and polymerisation. Compared to conventional techniques, HTC offers reduced energy consumption, diminished pollutant emissions, and higher carbonisation efficiency. In the water sector, the technology contributes to treating industrial, agricultural, and domestic wastewater. The resulting hydrochar effectively captures heavy metals, anions, and organic compounds, leading to improved water quality. Despite these benefits, broad adoption faces obstacles, including the need to adapt processes to variable raw materials, control economic expenses, and manage wider environmental and social consequences. Continued work on reaction mechanisms, catalyst development, and international policy support will be vital for harnessing HTC to meet carbon neutrality targets.
Wastewater from farms, factories, and homes presents a persistent threat to ecosystems and public health. Hydrothermal carbonisation provides a lower-emission, energy-efficient method to treat this wastewater while simultaneously locking away carbon. By converting wet waste biomass into useful hydrochar that filters out hazardous pollutants, the approach supports both clean water management and broader global climate change goals.
The technology targets municipal, industrial, and agricultural wastewater treatment operators seeking low-emission filtration solutions. The primary application involves producing hydrochar as an adsorbent for heavy metals and organic toxins. Given that process optimisation across diverse feedstocks, economic cost management, and catalyst development remain active challenges, the technology sits at an applied research stage rather than immediate commercial deployment.
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Hydrothermal carbonization (HTC) technology transforms organic biomass components, such as cellulose and lignin, into valuable carbon materials, gases and inorganic salts through hydrolysis, degradation and polymerization, with significant advantages over traditional methods by reducing energy consumption, lowering pollutant emissions and enhancing carbonization efficiency. In the context of global climate change, HTC plays a critical role in water environment management by addressing industrial, agricultural, and domestic wastewater challenges. The application of HTC extends to wastewater treatment, where hydrochar effectively adsorbs heavy metals, organic compounds, and anions, thereby improving water quality. However, challenges remain, such as optimizing the process for diverse raw materials, managing economic costs, and addressing environmental and social impacts. Future research and policy support are essential for advancing HTC technology. By enhancing reaction mechanisms, developing catalysts, and promoting international cooperation, HTC can significantly contribute towards achieving carbon neutrality goals and fostering sustainable development.
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DOI: 10.3390/w16121749
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