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Basic Study on Treatment of Pollutant Hard-Treated Wastes by non-thermal plasma

低温等离子体处理污染物难处理废物的基础研究

基本信息

批准号：
11555199
负责人：
MATSUDA Hitoki
金额：
$ 8.77万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555199/
关键词：
high density thermal plasma high frequency torch non-thermal plasma corona dischage volataile organic compounds alkali sorbent 活性種コロナリアクタ電界分布

项目摘要

In this research work, we applied the plasma technology for treatment of hard-treated wastes, which contain halogens and heavy metals, and investigate the decomposition behavior of wastes in plasma field was investigated. This research work reported the results obtained from the following experimental investigation, i) investigation of the possibility of plasma atmosphere controlling for completely decomposition and depression of pollutant by-product in the case of decomposition treatment of halogen compound gases by non-thermalplasma ii) investigation of the characteristics of high density plasma on the plasma technology for separating the involved metal compounds from wastesIn this research work about the technology for decomposition of halogen compound gases by non-thermal plasma, the influence of coexisting gas in plasma field on the decomposition of halogen compound gases like halon and freon. The experiments, simulated the treatment in the air atmosphere, indicated that the prese … More nce of O2 cause the decrease of decomposition rate and the emission of pollutant products, which contained O atom. It was confirmed the increase of decomposition rate of halogen compound gases in the case of addition of H2 for combining the free halogen atom. In order to stabilize the free halogen atom and produced acid gases, alkali sorbent was introduced in the plasma field directly. The sorbent settled in the reactor has the effect not only of the increase of decomposition rate but also depression of halogen by-products.The experiments were carried out to evaluate the ability of high frequency torch plasma in the system for the separating valuable metal compounds from solid wastes. The experimental results demonstrated that the plasma density (np) reached 2.6x1015cm-3, and the excitation temperature became 1.7eV. In this obtained plasma condition, severalmetaloxides can evaporate instantly and these compounds can be decomposed to atom or ion. As a next experimental step, it should be cleared the effect of coexisting solid material in the plasma field, because it has been known that the condition of plasma field become unstable owing to the presence of impurities in the field. Less

本研究将等离子体技术应用于含卤素和重金属的难处理废弃物的处理，研究了废弃物在等离子体场中的分解行为。本研究报告了从以下实验研究中获得的结果，i）在用非热等离子体分解处理卤素化合物气体的情况下，研究等离子体气氛控制完全分解和抑制污染物副产物的可能性ii）研究了高密度等离子体的特性对等离子体技术分离废弃物中金属化合物的影响研究了低温等离子体分解卤素气体的技术，等离子体场中共存气体对卤素气体如哈龙、氟里昂分解的影响。在空气中模拟处理的实验表明， ...更多信息 O_2的引入导致分解速率下降，产生含O原子的污染物。证实了在添加H2以结合游离卤素原子的情况下卤素化合物气体的分解速率增加。为了稳定游离卤素原子和产生的酸性气体，在等离子体场中直接引入碱性吸附剂。在反应器中加入吸附剂，不仅可以提高分解率，而且可以降低卤素副产物的生成。通过实验研究了高频等离子体在固体废弃物中有价金属化合物分离系统中的作用。实验结果表明，等离子体密度（np）达到2.6 × 10 ~（15）cm ~（-3），激发温度为1.7eV。在这种等离子体条件下，几种金属氧化物可以瞬间蒸发，这些化合物可以分解成原子或离子。作为下一个实验步骤，应该清除等离子体场中共存的固体材料的影响，因为已经知道，由于场中杂质的存在，等离子体场的条件变得不稳定。少

项目成果

期刊论文数量（20）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Liwei Huane, Katsuhhiko Nakajyo, Takaaki Hari, Shoji Ozawa and Hitoki Matsuda: "Decomposition of Carbon Tetrachloride by a Pulsed Corona Reactor Incorporated with In Situ Absorption"Ind. Eng. Chem. Res.. Vol.40. 5481-5486 (2001)

Liwei Huane、Katsuhhiko Nakajyo、Takaaki Hari、Shoji Ozawa 和 Hitoki Matsuda：“脉冲电晕反应器结合原位吸收法分解四氯化碳”Ind。

DOI：
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期刊：
影响因子：
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通讯作者：

Liwei Huang, Takaaki Hari, Katsuhhiko Nakajyo, Shoji Ozawa and Hitoki Matsuda: "Reduction of NO by CO in a Pulsed CoronaReactor Incorporated with CuO Catalyst"Journal of Chemical Engineering of Japan. Vol.34, No.8. 1012-1016 (2001)

Liwei Huang、Takaaki Hari、Katsuhhiko Nakajyo、Shoji Ozawa 和 Hitoki Matsuda：“Reduction of NO by CO in a Pulsed CoronaReactor Incorporated with CuO Catalyst”日本化学工程杂志。