Development of a tubular high-density plasma reactor for water treatment.
Development of a tubular high-density plasma reactor for water treatment.
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开发用于水处理的管式高密度等离子体反应器。
DOI：
10.1016/j.watres.2005.11.015
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Shamamian,VasgenA
中科院分区：
文献类型：
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作者：
Johnson,DerekC;Dandy,DavidS;Shamamian,VasgenA
实验对重介质等离子体反应器 (DMPR) 中甲基叔丁基醚 (MTBE)、苯、乙苯、甲苯、间二甲苯、对二甲苯和邻二甲苯 (BTEX) 的能量分布、鼓泡和氧化产生了许多重要见解。研究发现，DMPR 将相对少量的电能（大约 4%）以显热形式转移到周围的散装液体中。结合非线性最小二乘分析和 Matlab® 优化，确定了与等离子体引发的氧化、相间传质和光解相关的速率常数。为 DMPR 开发的速率常数与原型管式高密度等离子体反应器上的物质平衡相结合，已用于确定在批量和连续流配置中运行时 MTBE 和 BTEX 的去除率。污染物浓度对处理时间、针电极数量、电极间隙和体积流量等参数的依赖性已经确定。研究发现，在各种设计规范和操作条件下，管式高密度等离子体反应器可能是去除水溶液中挥发性有机化合物的有效工具。
Experiments have yielded a number of important insights into the energy distribution, sparging and oxidation of methyl tert-butyl ether (MTBE), benzene, ethylbenzene, toluene, m- and p-xylene, and o-xylene (BTEX) in a dense medium plasma reactor (DMPR). It has been found that the DMPR transferred a relatively small amount of electrical energy, approximately 4% in the form of sensible heat, to the surrounding bulk liquid. Rate constants associated with plasma initiated oxidation, interphase mass transfer and photolysis were determined using a combination of non-linear least squares analysis and Matlab®optimization for each species. The rate constants developed for the DMPR, in conjunction with a species mass balance on a prototype tubular high-density plasma reactor, have been applied to determine the removal rates of MTBE and the BTEXs when operating in batch and continuous flow configurations. The dependence of contaminant concentration on parameters such as treatment time, the number of pin electrodes, electrode gap, and volumetric flow rate has been determined. It was found that, under various design specifications and operating conditions, the tubular high-density plasma reactor may be an effective tool for the removal of volatile organic compounds from aqueous solutions.