Double-function synergistic treatment system: Mask-biochar package for methylene blue adsorption and high-quality bioproducts recovery via pyrolysis in wastewater treatment and fuel production

文献类型： 外文期刊

第一作者： Yang, Jingwen

作者： Yang, Jingwen;He, Sirong;Zhu, Weiyi;Cao, Bin;Chen, Hao;Esakkimuthu, Sivakumar;Wang, Shuang;Xu, Shannan;Xu, Shannan;Xu, Shannan

作者机构：

关键词： Discarded mask; Wastewater treatment; Biochar; Bio-oil; Closed-loop recycling

期刊名称：JOURNAL OF MOLECULAR LIQUIDS （ 影响因子：6.0； 五年影响因子：5.6 ）

ISSN： 0167-7322

年卷期： 2024 年 396 卷

页码：

收录情况： SCI

摘要： Waste disposable masks cause serious environmental pollution due to their slow degradation. This study investigated a simple and efficient method to recycle masks for high-value additional utilization. Polypropylene-based waste masks were dismantled and combined with Enteromorpha clathrate biochar (AC) to produce maskbiochar packages (M-AC), which were applied to wastewater (containing methylene blue) treatment. The results showed that compared with AC alone, the removal rate of MB solution by mask-biochar packages (M-AC) increased by 18.50 %. Then, the used mask-biochar packages (M-AC) were pyrolyzed at 550 C to obtain hydrocarbon-rich bio-oil and composite biochar (MAC). Compared to MAC alone, the mask-biochar package (MMAC) increased the removal rate of MB by 10.16 %. The composite biochar has achieved a high adsorption capacity of 820.925 mg.g(-1) without any activator and acid washing process. The hydrocarbon content is 55.31 % which makes it a hydrocarbon-rich bio-oil. This study provided effective experimental support for the combined use of biomass and mask for waste treatment and for the production of biochar.

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