Cr(VI)detoxification and simultaneous selective recovery of Cr resource from wastewater via photo-chemical extraction using biomass  

生物质光化学提取对废水中Cr(VI)解毒和铬资源的选择性回收

作　　者：Ling Yao Zewen Shen Zhuoyu Ji Yezi Hu Duoyue Tang Guixia Zhao Xiangke Wang 姚玲;沈泽文;姬濯宇;胡烨子;唐铎月;赵桂霞;王祥科(College of Environmental Science and Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]College of Environmental Science and Engineering,North China Electric Power University,Beijing 102206,China

出　　处：《Science Bulletin》2022年第21期2154-2157,共4页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(21976054,22176054);Fundamental Research Funds for the Central Universities(2020MS036);Beijing Outstanding Young Scientist Program。

摘　　要：Hexavalent chromium(Cr(VI))is found in a variety of effluents,such as electroplating,printing,tanning,dyes,ceramics,etc.[1,2].The acute toxicity of Cr(VI),the tremendous industrial consumption and the low deposit of chromium element make it essential to detoxicate Cr(VI)and recover Cr from Cr(VI)containing wastewater[3].Shortcomings such as harsh reaction conditions,high cost,additive of toxic reductants,secondary pollution,and lack of selectivity are present in commonly reported approaches or traditional methods(Table S1 online)[4–6].利用天然丰富的生物质进行环境修复符合可持续发展的要求.然而,生物质的改性/后处理成本高、能耗高,不利于实际应用.本文使用天然生物质(淀粉、甲壳素和壳聚糖),无需进一步处理。

关 键 词：CR(VI) 环境修复 光化学 甲壳素 生物质 壳聚糖 后处理 

分 类 号：X703[环境科学与工程—环境工程]