Mercury (Hg) is a toxic heavy metal contaminant and has very harmful effects for human health. In this work, Hg-containing wastewater with Hg concentration of 6.36 ppb and 9.4 ppb were recovered with polyethylenimine (PEI) cross-linked graphene oxide (GO) layered membrane (c-GO-PEI) by pervaporation. The influence of ionic type, the concentration of Hg and the feed temperature were investigated. The c-GO-PEI exhibited not only high rejection for salts (> 99.97%), Hg (77.5–100%) and non-purgeable organic carbon (NPOC) (67.3–90.8%) but also high flux (30.30 kg·m⁻²·h⁻¹) to treat with the wastewater. In addition, the flux could be largely recovered after simple washing, indicating the excellent antifouling property of the membrane.

汞 (Hg) 是一种有毒的重金属污染物，对人体健康具有非常有害的影响。在这项工作中，用聚乙烯亚胺 (PEI) 交联氧化石墨烯 (GO) 层状膜 (c-GO-PEI) 通过渗透蒸发回收了含汞浓度为 6.36 ppb 和 9.4 ppb 的含汞废水。研究了离子类型、汞浓度和进料温度的影响。c-GO-PEI 不仅对盐 (> 99.97%)、Hg (77.5–100%) 和不可净化的有机碳 (NPOC) (67.3–90.8%) 表现出高截留率，而且还表现出高通量 (30.30 kg·m ^-2 ·h ^-1 ) 处理废水。此外，经过简单洗涤后，通量可大量恢复，表明该膜具有优异的防污性能。