Ferric hydroxide is dosed into submerged MBR and domesticated to convert activated sludge into bio-ferric activated sludge and achieved high efficiency of removal and decrease membrane pollution.

• 向浸没式膜生物反应器中投加氢氧化铁絮体,经过驯化和培养,形成生物铁污泥,以提高膜生物反应器的处理效果,减缓膜污染。