According to the removing rate on algae and cost value or so, the sequence of four algaecides from good to bad were potassium permanganate, copper sulfate, hydrogen peroxide and sodium hypochlorite.

通过杀藻效果、经济性以及安全性等方面的综合比较，对于以有毒蓝藻为优势藻属的引滦水，四种杀藻剂的优劣程度从优到劣排序为：高锰酸钾＞硫酸铜＞过氧化氢＞次氯酸钠；

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