Abstract: The modification methods of biochar are introduced briefly,including steam activation,acid modification, alkali modification and impregnation method,and the mechanisms of the modification processes analyzed. Furthermore,the effects of modified biochar on the removal of heavy metals,anions and organic pollutants from water are summarized. On this basis,the future research direction has been predicted. It is considered that the regeneration treatment of biochar is one of the research emphases. Combining with other function materials to form new composite water treatment materials is also a research emphasis.

Key words: biochar, modification method, organic pollutant, adsorbent

摘要： 简述了生物质炭的改性方法（蒸汽活化、酸改性、碱改性、浸渍法），并对改性过程机理进行分析，总结了改性生物质炭对水中重金属、阴离子、有机污染物的去除效果。在此基础上，对未来的研究方向进行展望，认为生物质炭的再生处理是研究重点之一，结合其他功能材料形成新的复合水处理材料也是今后的研究重点。

关键词: 生物质炭, 改性方法, 有机污染物, 吸附剂

CLC Number: 

• X703