【多选题】【消耗次数：1】
关于混悬剂的絮凝与反絮凝叙述错误的有( )。
①
控制ζ电势在20-25mv范围内，可以恰好产生絮凝作用
②
反絮凝剂所用的电解质与絮凝剂不同
③
阳离子絮凝作用大于阴离子
④
反絮凝是指向絮凝状态的混悬剂中加入电解质，使絮凝状态变为非絮凝状态的过程
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①
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