Low power ultrasound can modify sludge bulking characteristics, improve sludge settling and dewatering properties, so decrease sludge water content and sludge volume.
小功率超声波能够改善污泥的膨胀特性、提高污泥沉淀特性和脱水能力、降低污泥的含水率，达到减量的目的。
The effect of salinity variations on sludge settling performance was investigated in the traditional activated sludge system when the toilet-flush seawater discharged into urban sewage system.
采用传统活性污泥法工艺研究了冲厕海水进入城市污水系统后，其盐度对污泥沉降性能的影响。结果表明，盐度对污泥沉降性能的影响比较明显，盐度有利于污泥沉降。
The effect of salinity variations on sludge settling performance was investigated in the traditional activated sludge system when the toilet-flush seawater discharged into urban sewage system.
采用传统活性污泥法工艺研究了冲厕海水进入城市污水系统后，其盐度对污泥沉降性能的影响。结果表明，盐度对污泥沉降性能的影响比较明显，盐度有利于污泥沉降。
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