高分求文献翻译一段

来源：百度知道 编辑：UC知道 时间：2024/06/15 03:15:03
In the present work, experimental design was used for the fast optimization of three kinds of sample digestion procedures with the final aim of obtaining the COD value of wastewater samples. The digestion methods evaluated were "closed microwave-assisted" (CMWD), "open microwave-assisted" (OMWD) and "ultrasound-assisted" (USD). Classical digestion was used as reference method. The optimum values for the different variables studied in each method were: 90 psi pressure, 475 W power and 4 min irradiation time (CMWD); 150 ◦C temperature and 4 min irradiation time (OMWD); 90% of maximum nominal power (180 W), 0.9 s (s 1) cycles and 1 min irradiation time (USD). In all cases, interference concentration that produces a deviation of 10% in COD values is 13.4, 23.4, 21.1 and 2819 mg/L for S , Fe 2+, NO 2 and Cl , respectively. Under optimum conditions, the proposed digestion methods have be

目前的研究工作,实验设计是用来快速优化的三种样品消解过程和最终目标的化学需氧量”的废水的样品。消化方法评价了“关闭”(CMWD微波),“微波”(打开)和“ultrasound-assisted OMWD”(美元)。经典的消化作为参考方法。最优值的不同变量进行了各种方法:90磅压力、电力和4分钟475 W照射时间(CMWD);150◦C温度和时间(OMWD 4分钟照射);90%的最大额定功率(180 W),0.9秒(1)周期和s1分钟照射时间(美元)。在所有情况下,干扰产生偏差浓度的化学需氧量数值是10%的13.4%,23.4,正在和2819毫克/升)为硫、铁2 + 2,分别和Cl。在最佳工艺条件下,本文提出的方法已成功地应用消化,除吡啶,几个纯有机化合物、COD废水样品回收率为10个真正104% 88岁,是远程之间的价值观的经典(打开)法作为参考reflux R.S.D.低于4%,在大多数情况下。因此,使用超声能量鳕鱼决心似乎
是一种有趣的和有前途的替代传统的开放reflux和微波消解方法用于相同的目的很简单,从仪器的便宜和安全与消化速度比那些步骤用于相同的目的。