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Hydrochar and pyrochar for sorption of pollutants in wastewater and exhaust gas: A critical review
Environmental Pollution ( IF 8.9 ) Pub Date : 2020-10-22 , DOI: 10.1016/j.envpol.2020.115910
Ziyun Liu , Zihan Wang , Hongxu Chen , Tong Cai , Zhidan Liu

Pollutants in wastewater and exhaust gas bring out serious concerns to public health and the environment. Biochar can be developed as a sustainable adsorbent originating from abundant bio-wastes, such as agricultural waste, forestry residue, food waste and human waste. Here we highlight the state-of-the-art research progress on pyrochar and hydrochar for the sorption of pollutants (heavy metal, organics, gas, etc) in wastewater and exhaust gases. The adsorption performance of pyrochar and hydrochar are compared and discussed in-depth, including preparation procedures (carbonization and activation), sorption possible mechanisms, and physiochemical properties. Challenges and perspective for designing efficient and environmental benign biochar-based adsorbents are finally addressed.



中文翻译:

碳氢化合物和焦炭对废水和废气中污染物的吸附:一项重要综述

废水和废气中的污染物引起了公众健康和环境的严重关注。可以将生物炭开发为一种可持续的吸附剂,源于丰富的生物废物,例如农业废物,林业残留物,食品废物和人类废物。在这里,我们重点介绍了焦炭和水焦炭用于吸附废水和废气中的污染物(重金属,有机物,气体等)的最新研究进展。对焦炭和水焦炭的吸附性能进行了比较和深入讨论,包括制备程序(碳化和活化),可能的吸附机理和理化性质。最后解决了设计高效和环境友好的生物炭基吸附剂的挑战和前景。

更新日期:2020-11-21
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