作业帮英语翻译AbstractPrevious studies have indicated that an effectiv
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/02 18:32:16
英语翻译
Abstract
Previous studies have indicated that an effective control technique for heavy metal emissions from incinerators is to use solid sorbents to capture metals by physical deposition and chemical adsorption.However,the adsorbed heavy metals on the retired sorbents could possibly cause secondary pollution if they are inadequately treated.The main objective of this study is to increase the stability of four heavy metals (Cu,Pb,Cr and Cd) on retired sorbents by heat treatment.The stability was based on the toxicity characteristic leaching procedure (TCLP) tests.The parameters evaluated included:(1) different temperatures (900,1100 and 1300°C); and (2) various heating times (20,40 and 60 min).The results indicated that most of the leaching rates decreased with increasing temperature for the four toxic heavy metals.The heat treatment time did not regularly influence the stability of heavy metals,and affected it slightly when the temperature was controlled at 1300°C.
Abstract
Previous studies have indicated that an effective control technique for heavy metal emissions from incinerators is to use solid sorbents to capture metals by physical deposition and chemical adsorption.However,the adsorbed heavy metals on the retired sorbents could possibly cause secondary pollution if they are inadequately treated.The main objective of this study is to increase the stability of four heavy metals (Cu,Pb,Cr and Cd) on retired sorbents by heat treatment.The stability was based on the toxicity characteristic leaching procedure (TCLP) tests.The parameters evaluated included:(1) different temperatures (900,1100 and 1300°C); and (2) various heating times (20,40 and 60 min).The results indicated that most of the leaching rates decreased with increasing temperature for the four toxic heavy metals.The heat treatment time did not regularly influence the stability of heavy metals,and affected it slightly when the temperature was controlled at 1300°C.
摘要
以往研究表明,对于焚化炉内重金属排放物的有效治理技术是：使用固体吸附剂通过物理吸附或者化学吸附来吸收金属颗粒.然而,如果不能处理好使用过的吸附剂的话,就会造成二次污染.本课题研究的是如何通过热处理来来增强被吸附重金属（铜、铅、铬、镉）的吸附稳定性.稳定性的测试要基于毒性过滤技术.所需参数包括：1,不同温度（900、1100、1300摄氏度）；2,不同加热时间（20、40、60分钟）.实验结果表明,实验所用的四种有毒重金属过滤速度随着温度的上升而下降.加热时间并不会显著影响重金属的稳定性,当温度为1300摄氏度时,温度会对结果有微小的影响
以往研究表明,对于焚化炉内重金属排放物的有效治理技术是：使用固体吸附剂通过物理吸附或者化学吸附来吸收金属颗粒.然而,如果不能处理好使用过的吸附剂的话,就会造成二次污染.本课题研究的是如何通过热处理来来增强被吸附重金属（铜、铅、铬、镉）的吸附稳定性.稳定性的测试要基于毒性过滤技术.所需参数包括：1,不同温度（900、1100、1300摄氏度）；2,不同加热时间（20、40、60分钟）.实验结果表明,实验所用的四种有毒重金属过滤速度随着温度的上升而下降.加热时间并不会显著影响重金属的稳定性,当温度为1300摄氏度时,温度会对结果有微小的影响
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