Through the activation grade, viscosity and settling volume test of modified CaCO_3 by different coupling agent, the result showed that CaCO_3 modified by rare earth coupling agent had better dispersivity and compatibility than titanate, aluminate and WG-1.
测定不同偶联剂活化CaCO_3的活化度、沉降体积和粘度分析偶联剂对CaCO_3的活化效果,结果表明经稀土偶联剂活化CaCO_3有较好的分散性、相容性和活化度,活化效果优于钛酸酯、铝酸酯和WG-1。
参考来源 - 新型稀土偶联剂的合成及应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Then the modifier amount can be regarded as the best dosage that is confirmed by settling volume in liquid paraffin and the modified mechanism is given in the end of the paper.
然后通过在液体石蜡中的沉降体积验证了此改性剂用量可以作为最佳剂量，最后给出了偶联剂的改性机理。
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。
Main factors affecting COD removal rate were orderly aeration volume, aeration and settling duration.
影响cod去除率的最主要因素为曝气量，曝气时间、沉淀时间也有一定影响。
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