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污水处理厂污泥堆肥化处理研究

, PP. 148-154

Keywords: 污泥,堆肥化,调理剂

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Abstract:

以深圳市滨河污水处理厂污泥为研究对象,采用干污泥和回流污泥为调理剂,以树叶粉和木屑调节碳氮比,用强制通风静态发酵装置对污泥进行堆肥化处理,探讨污泥堆肥的工艺条件。研究结果表明,采用湿污泥与干污泥或回流污泥体积比1∶1混合可以满足污泥堆肥水分调节的目的,用树叶粉和木屑调节碳氮比有利于污泥堆肥的进行,但会增加污泥堆肥的成本。不同处理污泥堆肥堆体的温度在55℃以上维持时间都超过了12d,达到了污泥无害化与稳定化的标准。通过中试规模的装置对以干污泥或回流污泥作为调理剂的污泥堆肥研究表明,湿污泥与干污泥体积比1∶1有利于污泥的无害化与稳定化。

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