吸附
钼酸盐
壳聚糖
化学
环境修复
水处理
水溶液中的金属离子
地下水
阳离子聚合
地下水修复
金属
污染
无机化学
环境工程
环境科学
有机化学
地质学
岩土工程
生物
生态学
作者
Fernando Ariel Bertoni,Juan Carlos González,Silvia Garcı́a,Luis F. Sala,Sebastián Bellú
标识
DOI:10.1016/j.carbpol.2017.10.027
摘要
Water pollution by heavy metals represents a serious problem around the world. Among various treatment techniques for water remediation, adsorption is an effective and versatile method due to the low cost, effectiveness and simplicity. Chitosan is a cationic polysaccharide with an excellent adsorption capacity of heavy metal ions. Chitosan has a high molybdate adsorption capacity (265±1mgg-1) at 20°C and pH 2.7. Participation of hydroxyl groups in the adsorption of molybdate anions was confirmed by FT-IR analysis. SEM images showed that morphological surface changes happen after MoVI adsorption. Continuous adsorption data were best fitted by Modified Dose- Response model. Scale-up of continuous processes was achieved applying bed depth service time (BDST) model. Application of chitosan in molybdate removal from real groundwater samples suggest that this polysaccharide is a good option to be used for household purposes.
科研通智能强力驱动
Strongly Powered by AbleSci AI