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Effect of metal and glycol on mechanochemical dechlorination of polychlorinated biphenyls (PCBs) 总被引:1,自引:0,他引:1
This paper assesses the potential of mechanochemical method with fine metal powder, glycol and alkali for polychlorinated biphenyls (PCBs) removal from waste insulating oil. The effects of relevant parameters, such as kinds of chemicals, rate and time of milling were examined. After each run, the total PCBs content in waste insulating oil was measured. Polyethylene glycol 200, long chain-glycol was more effective than triethylene glycol and ethylene glycol, short chain-glycol as hydrogen donor in mechanochemical dechlorination of PCBs. A maximum of 99.9% PCBs removal (below 2ppm) and 94% total chlorine removal were achieved with the mechanochemical process for 2h. 相似文献
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V. V. Martemyanov S. A. Bakhvalov M. J. Rantala I. M. Dubovskiy E. E. Shul’ts I. A. Belousova A. G. Strel’nikov V. V. Glupov 《Russian Journal of Ecology》2009,40(6):434-439
The effects of birch resistance induced by its artificial defoliation on the development of gypsy moth larvae and their sensitivity
to viral infection and on the state of the antioxidant and detoxification systems of the insect midgut were studied. The dynamics
of larval body weight; larval mortality and its etiology; glutathione-S-transferase (GT), nonspecific esterase (NE), and catalase
(CAT) activities; and the ratio between the concentrations of oxidized and reduced thiol-containing compounds (RSSR/RSH) were
estimated. In larvae feeding on the leaves of a previously defoliated plant, body weight was decreased, NE was inhibited,
and the RSSR/RSH ratio was increased. 相似文献
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