预氧化强化混凝去除富营养化水体中藻类研究回顾

摘要

水体富营养化导致的水华威胁着饮用水安全和水生态平衡.近年来,如何高效地去除水中的藻类已成为国内外的研究热点.将预氧化和混凝法进行联用可以起到协同效果,从而有效去除水体中的藻类,而不同的预氧化方法在除藻机理、效果上均有很大差别.文中主要探讨了高锰酸钾、臭氧、二氧化氯、高铁酸盐、紫外预氧化强化混凝除藻时的不同特性、效果以及安全性,为水厂除藻工艺的选择提供参考.%Drinking water safety and aquatic ecosystem balance has been threatened by algae bloom.Recent years,how to remove algae from water efficiently has been a hot topic throughout the world.The algae in water can be efficiently removed by pre-oxidation synergistically with coagulation.However,different kinds of pre-oxidation technics vary largely in their mechanics and effects.Different characteristic,effect and safety factors of potassium permanganate,ozone,chlorine dioxide,ferrate and ultraviolet are discussed in this manuscript,which can offer a reference for water plants to choose proper treatments.