State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China; School of Bioscience, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia.
Department of Environmental Health, Faculty of Health Sciences, MAHSA University, 42610, Jenjarom, Selangor, Malaysia.
Environ Res. 2022 Mar;204(Pt A):111966. doi: 10.1016/j.envres.2021.111966. Epub 2021 Aug 25.
Microalgae are drawing attentions among researchers for their biorefinery use or value-added products. The high production rate of biomasses produced are attractive for conversion into volatile biochar. Torrefaction, pyrolysis and hydrothermal carbonization are the recommended thermochemical conversion techniques that could produce microalgal-based biochar with desirable physiochemical properties such as high surface area and pore volume, abundant surface functional groups, as well as functionality such as high adsorption capacity. The characterizations of the biochar significantly influence the mechanisms in adsorption of pollutants from wastewaters. Specific adsorption of the organic and inorganic pollutants from the effluent are reviewed to examine the adsorption capacity and efficiency of biochar derived from different microalgae species. Last but not least, future remarks over the challenges and improvements are discussed accordingly. Overall, this review would discuss the synthesis, characterization and application of the microalgal-based biochar in wastewater.
微藻因其生物炼制用途或增值产品而引起研究人员的关注。生物量的高生产率对于转化为挥发性生物炭很有吸引力。热解、热解和水热碳化是推荐的热化学转化技术，可以生产具有理想物理化学性质的微藻基生物炭，如高比表面积和孔体积、丰富的表面官能团以及高吸附能力等功能。生物炭的特性显著影响废水污染物吸附的机制。综述了从废水中特定吸附有机和无机污染物的情况，以考察不同微藻物种衍生的生物炭的吸附容量和效率。最后但同样重要的是，还讨论了未来的挑战和改进。总的来说，本文综述了基于微藻的生物炭在废水处理中的合成、表征和应用。
