改性污泥质生物炭吸附污水中有机污染物的研究进展  

Research progress on the removal of organic contaminants from wastewater by modified sludge-based biochar

作　　者：张佳玲 方芳[1,2] 董锦云 巢敏讷 操家顺 ZHANG Jialing;FANG Fang;DONG Jinyun;CHAO Minne;CAO Jiashun(Key Laboratory of Integrates Regulation and Resource Development on Shallow Lakes,Ministry of Education,College of Environment,Hohai University,Nanjing,210098,China;Guohe Environmental Research Institute(Nanjing)Co.,Ltd,Nanjing,210048,China)

机构地区：[1]浅水湖泊综合治理与资源开发教育部重点实验室,河海大学环境学院,南京210098 [2]国河环境研究院(南京)有限公司,南京210048

出　　处：《环境化学》2021年第10期3144-3157,共14页Environmental Chemistry

基　　金：国家自然科学基金(51878244,51578210);中央高校基本科研业务费(B200202101)资助。

摘　　要：污泥质生物炭作为一类碳材料,具有优异的理化性质和多样化的功能,在有机污染物处理领域具有巨大的潜力.利用污泥质生物炭自身的吸附性能,将其与其他材料复合制成新材料,可以赋予生物炭新的性能,提高其吸附效率.本文综述了污泥质生物炭的改性方法及其作为吸附剂在去除废水中有机污染物的应用情况,阐明了改性污泥质生物炭对有机污染物的去除机理,由孔隙填充、分配作用、疏水作用、π-π电子供体-受体作用、静电吸附作用和氢键等微观吸附机制共同作用.最后针对污泥质生物炭吸附后的再生方法进行讨论,并在此基础上提出将来研究高效生物炭吸附材料的重点和研究方向,以期为污泥质生物炭在污水处理系统中的应用提供参考.Being one of the classes of carbon materials, sludge-based biochar with excellent physicochemical properties and diversified functions presents great potential in the field of organic contaminant treatment. By compounding raw sludge-based biochar and other materials, novel functional properties could be endowed and the adsorption efficiency of biochar can be much improved. This study reviewed the recent progress on the modification approaches of sludge-based biochar and the efficiencies of these modified materials in the removal of organic contaminants from wastewater were summarized. The removal mechanisms of organic contaminants by modified sludge biochar, including pore filling, partition, ion, hydrophobic interaction, π-π EDA interaction,electrostatic interaction and hydrogen bonding etc. have been described. The regeneration methods of sludge-based biochar after adsorption of organic contaminants have also been discussed. Based on the review, the authors have proposed the research direction of high-efficient biochar-based adsorption materials in the future, providing scientific and engineering basis for the potential applications of sludge-based biochar in the field of wastewater treatment.

关 键 词：污泥 生物炭 改性 有机污染物 吸附机制 

分 类 号：X703[环境科学与工程—环境工程]