摘要
高锰酸盐常用于医学消毒.自20世纪80年代,我国开始将高锰酸盐预氧化技术应用于水质净化领域,主要去除地下水中铁锰、控制臭味,也用于去除有机污染物、重金属、藻类,削减消毒副产物等;其具有选择性高、成本低廉、绿色环保、多功能等特点,在水质净化中具有重要的应用前景.本文综述了高锰酸盐预氧化技术在我国净水领域的发展历程,并探讨了其在去除水中臭味、浊度、藻类、重金属离子、新污染物、控制消毒副产物、强化混凝、强化过滤、污染应急等方面的效能与机制;进一步阐述了利用配体、紫外光、碳材料和氧化还原介体等强化高锰酸盐氧化效能方面的研究进展;展望了高锰酸盐氧化技术在净水领域的未来发展方向,以期为推动该技术进一步发展提供一些思路.
Abstract
Permanganate has been widely used in medical disinfection.Since the 1980s,China began to apply permanganate pre-oxidation technology in water purification,mainly to remove iron and manganese in groundwater,reduce odor,remove organic pollutants,heavy metals,algae,and control disinfection byproducts.Permanganate oxidation holds significant prospects in water purification for its oxidation ability,high selectivity,low cost,environmental-friendliness and multi-functions.This paper reviews the development history of permanganate oxidation in the field of water purification,and explores its efficacy and mechanism in removing odors,turbidity,algae,heavy metal ions,and trace organic pollutants from water.This paper also elucidates the research progress in enhancing permanganate oxidation using ligands,sulfite,ultraviolet radiation,carbon-catalyst,and redox mediators.Finally,the future direction of permanganate oxidation in water purification is envisaged,with the aim of providing some insights to promote the further development of this technology.
基金项目
国家自然科学基金国际(地区)合作与交流项目(51961125104)
国家自然科学基金面上项目(22076016)
NETL
NSTL
维普
万方数据