Electrospun nanofibrous poly(ether-block-amide) membrane for removing biogenic amines in acidic wastewater from the yellow rice wine factory

• Published in: The Science of the total environment 2023-03, Vol.862, p.160720-160720, Article 160720
• Main Authors: Zhu, Jiaxin, Wang, Xiao, Mao, Lili, Chen, Xinyue, Han, Jingchao, Li, Xinyang, Xia, Shuwei, Wang, Haizeng
• Format: Article
• Language: English
• Subjects: Acidic wastewater; Biogenic amines; Biogenic Amines - analysis; Biogenic Amines - chemistry; Electrospun membrane; Ether; Ethers; Ethyl Ethers; Nanofibers - chemistry; Poly(ether-block-amide); Wastewater; Wine - analysis; Yellow rice wine
• ISSN: 0048-9697; 1879-1026
• DOI: 10.1016/j.scitotenv.2022.160720

Compared with other techniques for wastewater treatment, adsorption offers an effective, economical and ecofriendly way to reduce the content of biogenic amines. Herein, the poly(ether-block-amide) (PEBA 2533) membranes were employed as the adsorbent to remove histamine, putrescine, cadaverine and tyramine in the synthetic and real wastewater from a local yellow rice wine factory. Electrospun PEBA membranes consisting of fine nanofibers were successfully obtained without the addition of surfactant for the first time. Characteristics of the prepared membranes were evaluated by their morphology, wetting behaviors and mechanical properties. Adsorption performance of the nanofibrous membrane was investigated in comparison to the dense membrane prepared by conventional casting. The fibrous membrane exhibited much higher adsorption rate over 10 times to the dense membrane along with 1.5 times more adsorption capacity towards the amines. In addition, the as-prepared membrane showed a promising reusability in the real wastewater treatment. The good balance of its chemical stability, adsorption capacity, selectivity, removal efficiency and reusability endows the electrospun membrane with an outstanding potential to be applied in the acidic wastewater treatment for the yellow rice wine industry. [Display omitted] •An electrospun nanofibrous PEBA membrane was prepared without the addition of surfactant.•The PEBA membranes showed a good selectivity to tyramine over the other biogenic amines.•Nanofibrous PEBA membranes showed good adsorption capacity, efficiency and reusability.•The adsorption of amines on PEBA included both surface phenomenon and internal diffusion.