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| | The boron sludge activated by heating is used to treat oil containing wastewater, the best uptake pH is at the range of 5 ̄12 when it is added 0.4 percent and the percentage uptake of oils is 92 percent. The adsorption of oils on boron sludge fits for langmuir thermoisopleth. The largest adsortion quantity at the temprature of 20.0℃, 25.0℃, 30.0℃ is 58.6, 65.5, 71.5mg/g respectively. The Bangham equation and Langmuir equation have been used for dynamic modelling of the process. Using boron sludge and coa... | | 加热后的硼泥处理含油废水,投加量为4‰时,除油最佳pH范围为5~12,除油率达92%以上。油在硼泥上的吸附符合Langmuir吸附等温式,20.0℃、25.0℃、30.0℃的饱和吸附量分别为58.6、65.5、71.5mg/g。吸附速度符合Langmuir吸附动力学方程。硼泥与混凝剂组合使用,可加快沉降速度,提高除油率。除油后的硼泥沉渣经灼烧得到的再生硼泥,除油率仍达98%以上。通过硼泥的红外光谱和X-射线衍射图,探讨了吸附油的机理。 | | 文摘来源 | | The heated boron sludge was used to treat detergent wastewater and the removal rate was 94% when pH ranged from 3.0 to 10.5 and the added amount was 0.4%,and adsorption of detergent on the boron sludge was fit for Flundlich thermoisopleth. The amount of adsorption at the temperature of 20.0℃, 25.0℃ and 30.0℃ were 63.0, 57.0 and 50.0mg/g respectively, and the speed of adsorption was suited to Jiaodao dynamic equation. | | 加热后的硼泥处理洗涤剂废水,投加量为0.4%,pH为3.0~10.5时,洗涤剂去除率达94%。洗涤剂在硼泥上的吸附符合Flundlich吸附等温式,其20,25.0,30.0℃的饱和吸附量分别为63.0、57.0、50.0mg·g~(-1)。吸附速度符合鲛岛动力学方程。 | | 文摘来源 | |   |
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