Preparation of wood-based hydrogel membranes for efficient purification of complex wastewater using a reconstitution strategy  

作　　者：Qian He Junkai Gao Zhongzhi Chen Yuanjing Ding Mengsheng Xia Pengtao Xu Yan Chen 

机构地区：[1]School of Naval Architecture and Maritime,Zhejiang Ocean University,Zhoushan 316022,China [2]InnoTech Alberta,P.O.Box 4000,Hwy 16A&75 Street,Vegreville,AB T9C 1T4,Canada

出　　处：《Frontiers of Environmental Science & Engineering》2024年第7期59-72,共14页环境科学与工程前沿（英文）

基　　金：This work was supported by the Zhejiang Provincial Natural Science Foundation of China(No.LY23D060004);the Science and Technology Planning Project of Zhoushan of China(No.2022C41005);the National Natural Science Foundation of China(No.51606168).

摘　　要：To avoid resource wastage and secondary environmental pollution,recycling and reusing waste wood powder is still a great challenge.Moreover,the poor viscosity and irregular pore size of wood powder limit its practical application.This study,employed a green and convenient wood powder reconstitution strategy to achieve highly adhesive bonding and pore size control between wood powder particles,thus preparing a high-strength and super hydrophilic wood powder membrane.The wood powder fibers were partially dissolved and regenerated to create a reconstituted wood powder hydrogel membrane,using waste wood powder as the raw material.The wood powder reconstitution strategy offers advantages such as environmental friendliness,simplicity,cost-effectiveness,and strong universality.Furthermore,the materials exhibit excellent self-cleaning properties and superhydrophilicity.Driven by gravity,the membrane can purify oily wastewater and dyes.Additionally,the reconstitution strategy offers a new pathway for recycling wood powder.

关 键 词：Wood powder Reconstitution strategy Hydrogel membrane RECYCLING WASTEWATER 

分 类 号：X714[环境科学与工程—环境工程]