Surface modification of membrane bioreactor by hybrid halloysite nanotubes for industrial wastewater treatment containing heavy metals

IF 2.4 3区化学 Q3 POLYMER SCIENCE

Iranian Polymer Journal Pub Date : 2024-03-22 DOI:10.1007/s13726-024-01298-6

Sajjad Gorjizadeh, Masoud Rahbari-Sisakht, Daryoush Emadzadeh

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Abstract

Surface modification of polysulfone (PSF) membrane bioreactor using hybrid halloysite nanotubes (HHNTs) and dendrimers was investigated for industrial wastewater treatment containing heavy metals. Petroleum wastewater was obtained from liquefied gas plant 1200 (NGL 1200) in Gachsaran, Iran. Polysulfone)PSF( membranes were fabricated using hybrid halloysite nanotubes and dendrimers at different concentrations of 0, 0.5, 1, and 2 wt% and identified with certain codes of PSF, HNT0.5, HNT1, and HNT2, respectively. The fabricated membranes were characterized by FTIR, AFM, EDX, SEM, and contact angle analyses. The contact angle decreased as a result of HNT loading in PSF membranes, which was due to the enhancement of the membrane hydrophobicity. The heavy metal rejection in the HNT1 membrane for Cu (II), Pb (II), Ni (II), and Zn (II) was 83.25%, 98.79%, 81.09%, and 85.98%, respectively. Also, the rejection of Ni (II) in PSF was 38.24% which showed a lower amount. Based on the results, the HNT1 membrane which was fabricated using 1 wt% of the hybrid halloysite nanotubes showed the best performance to heavy metals removal from industrial effluents.

Graphical abstract

Abstract Image

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用混合埃洛石纳米管对膜生物反应器进行表面改性，以处理含重金属的工业废水

研究人员利用杂化哈洛石纳米管（HHNTs）和树枝状聚合物对聚砜（PSF）膜生物反应器进行了表面改性，以处理含有重金属的工业废水。石油废水取自伊朗 Gachsaran 的液化气厂 1200（NGL 1200）。使用不同浓度（0、0.5、1 和 2 wt%）的混合埃洛石纳米管和树枝状聚合物制作了聚砜（PSF）膜，并分别用 PSF、HNT0.5、HNT1 和 HNT2 进行了标识。傅立叶变换红外光谱（FTIR）、原子力显微镜（AFM）、乙二胺四乙酸（EDX）、扫描电镜（SEM）和接触角分析对制备的膜进行了表征。在 PSF 膜中添加 HNT 后，接触角减小，这是因为膜的疏水性增强了。HNT1 膜对 Cu (II)、Pb (II)、Ni (II) 和 Zn (II) 重金属的抑制率分别为 83.25%、98.79%、81.09% 和 85.98%。此外，PSF 对镍（II）的剔除率为 38.24%，表明镍（II）的含量较低。根据这些结果，使用 1 wt% 的混合霍洛石纳米管制造的 HNT1 膜在去除工业废水中的重金属方面表现最佳。

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来源期刊

Iranian Polymer Journal 化学-高分子科学

CiteScore

4.90

自引率

9.70%

发文量

107

审稿时长

2.8 months

期刊介绍： Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.