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首页> 外文会议>The 22nd International Conference on Solid Waste Technology and Management(ICSW 2007) >Regeneration of Different Types of Granular Activated Carbons with Adsorbed Trichloroethylene using Wet Peroxide Oxidation under Mild Condition
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Regeneration of Different Types of Granular Activated Carbons with Adsorbed Trichloroethylene using Wet Peroxide Oxidation under Mild Condition

机译：轻度条件下湿式过氧化氧化吸附三氯乙烯再生不同类型的颗粒活性炭

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摘要

The objective of this study is to clarify the regeneration of different types of granular activated carbons (GAC) with adsorbed trichloroethylene (TCE) using wet peroxide oxidation (WPO) under mild condition (180℃).TCE adsorbed on each GAC was degraded by WPO. The rate of TCE degradation was higher in GAC with larger pore size. In the repeated regeneration of GAC, the adsorption capacity of each GAC for TCE gradually decreased. Especially, the adsorption capacity of catalyzed GAC, CENTAUR (Calgon Mitsubishi Chemical Co.) decreased more than other GAC with regeneration efficiency (q/q_0) of 0.17 in the 4th step using 6 hours regeneration time. On the other hand, the adsorption capacity of the largest pore size GAC, Diahope007 (Calgon Mitsubishi Chemical Co.), which has the fastest TCE degradation, did not decrease much in 2 hours regeneration time and the regeneration efficiency at 4 step was 0.93. Even though adsorption and regeneration was repeated, the BET surface area and pore volume of each GAC were not reduced.
机译：本研究的目的是阐明在温和的条件下（180℃）使用湿式过氧化物氧化（WPO）对三氯乙烯（TCE）吸附的三氯乙烯（TCE）吸附不同类型的粒状活性炭的效果。 。在孔径较大的GAC中，TCE的降解率较高。在GAC的反复再生中，各GAC对TCE的吸附能力逐渐降低。尤其是，在6个小时的再生时间中，第四步的再生效率（q / q_0）为0.17，催化的GAC CENTAUR（卡尔三菱化学公司）的吸附能力比其他GAC降低更多。另一方面，具有最大TCE降解的最大孔径GAC，Diahope007（Calgon Mitsubishi Chemical Co.）的吸附容量在2小时的再生时间内没有降低太多，并且在4步的再生效率为0.93。即使重复吸附和再生，每个GAC的BET表面积和孔体积也不会减少。

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