The rapid development of industry has generated a large amount of heavy metal wastewater,and the non-degradability of heavy metals has led to their continuous accumulation in the environment,causing serious impacts on human and environmental health.Among the many methods for treating heavy metal wastewater,the biosorption method is widely used because of the advantages of mild reaction conditions and the ability to treat a variety of heavy metal ions at the same time.However,a single biosorbent is often not able to meet the high efficiency removal of the target metal ions,therefore it needs to be chemically modified in order to obtain a more efficient biosorbent.The study analyzes the characteristics of heavy metal wastewater,summarizes the methods of chemically modified biosorbents,and focuses on the current research status of chemically modified biosorbents for treating heavy metal wastewater,so as to provide reference for the further development of chemically modified biomaterials.
关键词
生物吸附剂/化学修饰/重金属废水
Key words
Biosorbent/Chemical modification/Heavy metal wastewater