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首页> 外文会议>International Conference on Waste Management and Technology >Phosphorus Releasing from Surplus Activated Sludge by Ultrasonic Pretreatment
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Phosphorus Releasing from Surplus Activated Sludge by Ultrasonic Pretreatment

机译：超声预处理从剩余活性污泥释放的磷

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摘要

Three kinds of surplus activated sludge were pretreated by alkali and combination of alkali and ultrasonic. The changes of PO_4~3-P, TP, SCOD, TOC, TS, VS before and after pretreatment were investigated. The results showed that phosphorus and organic matter could be released into supernatant both by alkali and ultrasonic. The surplus activated sludge from municipal wastewater treatment plant was easier to be broken than that from pharmaceutical wastewater treatment plant. The activated sludge from Qinghe wastewater treatment plant could be selected for further phosphorus recovery since the largest quantity of phosphorus release and the lowest organic matter release ratio among the three kinds of surplus activated sludge.
机译：通过碱和碱和超声波的组合预处理三种剩余活性污泥。研究了PO_4〜3-P，TP，SCOD，TOC，TS，VS之前和预处理前后的变化。结果表明，磷和有机物质可以通过碱和超声波释放到上清液中。来自市政废水处理厂的剩余活性污泥比药物废水处理厂更容易被打破。由于三种剩余活性污泥中最大的磷释放和最低的有机物释放比，可以选择来自Qinghe废水处理厂的活化污泥以进一步磷恢复，以及三种剩余活性污泥中的最低有机物释放比。

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