Appling the mixed sludge of raw sludge and waste activated sludge from sewage waste water treatment plant, this paper studies the factors during aerobic digestion process.

以城市污水处理厂的初沉污泥与剩余污泥的混合污泥为对象，研究了影响污泥好氧消化处理的各项因素。

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Sludge bulking is a hard job in activated sludge treatment, especially in the treatment of high load waste water from petrochemical plant.

污泥膨胀是活性污泥法污水处理中的一个难题，尤其在处理高负荷的石化污水中。

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Sludge water content has been detected as the index to indicate the effect of ultrasonic and composite flocculants on the residual activated sludge in petrochemical water treatment plants.

以污泥含水率为考察指标，研究了超声波-复合絮凝剂对石化厂剩余污泥脱水效果的影响。

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