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Sorption-Based Atmospheric Water Harvesting: Materials, Components, Systems, and Applications
Akram Entezari1, Oladapo Christopher Esan1, Xiaohui Yan2
1Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.
Atmospheric water harvesting offers a sustainable solution to global freshwater scarcity. This technology provides decentralized water production for drinking, agriculture, and energy, reducing reliance on natural resources.
Area of Science:
- Environmental Science
- Materials Science
- Chemical Engineering
Background:
- Global freshwater scarcity affects two-thirds of the world's population.
- Atmospheric water harvesting (SAWH) presents a decentralized solution for water production.
- SAWH utilizes sorbent materials to capture atmospheric moisture.
Purpose of the Study:
- To provide a comprehensive review of sorption-based atmospheric water harvesting (SAWH) technology.
- To explore the principles, materials, designs, and applications of SAWH.
- To examine strategies for integrating SAWH to address food, energy, and water needs.
Main Methods:
- Review of state-of-the-art SAWH technologies.
- Analysis of thermodynamic principles and energy assessments.
- Discussion of material science, component design, and system integration.
Main Results:
- SAWH is an efficient strategy for decentralized freshwater production.
- SAWH has diverse applications beyond drinking water, including agriculture, energy, and textiles.
- Integration of SAWH can reduce human dependence on conventional water resources.
Conclusions:
- SAWH offers a self-sustaining freshwater source with broad utility.
- Hybrid SAWH systems are crucial for enhanced sustainability and diverse applications.
- Further research is needed to optimize SAWH design and implementation, especially in developing regions.
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