Macro- and micro-algae-based carbon composite for pharmaceutical wastewater treatment: Batch adsorption and mechanism study

文献类型： 外文期刊

第一作者： Xu, Shannan

作者： Xu, Shannan;Liu, Yong;Xiao, Yayuan;Li, Chunhou;Wang, Shuang;Xu, Shannan;Liu, Yong;Xiao, Yayuan;Li, Chunhou;Xu, Shannan;Liu, Yong;Xiao, Yayuan;Li, Chunhou;Yang, Jingwen;Wei, Manman;Wang, Shuang;Marrakchi, Fatma

作者机构：

关键词： Tetracycline; Biochar; Algal biomass; Adsorption capacity; Surface area; Composite activated carbon

期刊名称：PROCESS SAFETY AND ENVIRONMENTAL PROTECTION （ 影响因子：7.8； 五年影响因子：7.5 ）

ISSN： 0957-5820

年卷期： 2023 年 176 卷

页码：

收录情况： SCI

摘要： Biochar synthesized from algal biomasses acts as an efficient adsorbent to remove tetracycline (TC) from aqueous solutions. In this study, a mixture of Enteromorpha (EN) and Chlorella vulgaris (CV) was pyrolyzed at 500 degrees C, then activated with NaOH at 800 degrees C to prepare composite biochar (ECA-B). The effects of TC concentration (50-500 mg.L-1), pH (3-11), temperature (30 degrees C-50 degrees C), and contact time (0-960 min) on TC absorption were investigated. Results revealed that in aqueous solutions, the biochar (EC4:1-0.5)prepared with CV and EN at the mass ratio of 4:1 and the impregnation ratio of 0.5 had the optimal TC adsorption capacity (Q(m) = 376.878 mg.g(-1)). The removal rate of EC4:1-0.5 remained above 80 % after five cycles. The surface area of EC4:1-0.5 (583.329 m(2).g(-1)) increased by three and four times that of EN and CV, respectively. Intraparticle diffusion was considered as the major limitation for the adsorption of TC onto EC4:1-0.5. This investigation provides a method for the synthesis and optimization of algal biomass-based activated carbon for the absorption of organic pollutants in wastewater.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序