Highly effective degradation of polychlorinated biphenyls in soil mediated by a Ca/Rh bicatalytic system
Highly effective degradation of polychlorinated biphenyls in soil mediated by a Ca/Rh bicatalytic system
复制标题
DOI：
10.1016/j.chemosphere.2008.10.034
复制
发表时间：
2009-02-01
期刊：
影响因子：
8.8
通讯作者：
Simion, Cristian
中科院分区：
文献类型：
--
作者：
Mitoma, Yoshiharu;Egashira, Naoyoshi;Simion, Cristian
使用金属钙和酒精处理土壤中的多氯联苯，最终将多氯联苯浓度降低到1300 × 10 (3) mg kg(1)至1.8 × 10 (3) mg kg(1)。此外，采用金属钙催化剂法，在特定还原性催化剂（如Rh/C）存在的情况下，促进氢气的有效利用，在温和的反应条件下，pcb的分解效率显著提高。处理过的土壤的总多氯联苯浓度从1300 × 10 (3) mg kg(1)下降到0.62 × 10 (3) mg kg(1)（分解）。平均值= 99.95%)。在室温0.15-0.26 MPa的温和条件下，用金属钙和酒精中的Rh/C催化剂处理土壤，对现有多氯联苯的降解非常有效。(C) 2008 Elsevier Ltd版权所有。
Treatment of PCBs in soil using metallic calcium and alcohol ultimately reduced 1300 x 10 (3) mg kg (1) PCB concentration to 1.8 x 10 (3) mg kg (1). Moreover, using the metallic calcium catalyst method to promote the effective use of hydrogen gas in the presence of a specific reducing catalyst such as Rh/C, the decomposition efficiency of PCBs was notably increased despite mild reaction conditions. The total PCB concentration of treated soils decreased from 1300 x 10 (3) mg kg (1) to 0.62 x 10 (3) mg kg (1) (decomp. avg. = 99.95%). Treatment of soils with metallic calcium and a Rh/C catalyst in alcohol under mild conditions such as 0.15-0.26 MPa at room temperature is extremely effective for degradation of existing PCBs. (C) 2008 Elsevier Ltd. All rights reserved.