螯合剂在H_2O_2漂白及废水处理中的变化与影响

Change and Effect of Chelating Agents in Peroxide Bleaching and Effluent Treatment

讨论了EDTA与DTPA在H2O2漂白及废水处理系统中的变化与影响。针对这2种螯合剂在碱性HO2漂白体系中的螯合能力和溶解性、对水环境的影响、在漂白过程及废水处理时的降解情况及可替代与回收的可能性等方面进行了综合论述。

Thanks to the developments of TCF and ECF bleaching， the use of chelating agents EDTA and DTPA has increased in recent years． The change and effect of the chelating agent in H2O2 bleaching and effluents treatment processes are focused in this paper． The chelating ability and solubility， the influence on aquatic environments， the degradation in bleaching and effluents treatment processes， the substitute and possibility of recovery of the chelating agents EDTA and DTPA are discussed．