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     · Char in PCB had high metal compounds (16.025 wt ) and higher than the metal found in ABS/PC s char (1.141 wt ). In PCB char metal compounds such as Al Cu and Fe were found in relatively high concentration. 6. Porosity of spent catalysts was reduced. Bromine compounds were detected showing the performance of bromine adsorption.

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     · The production of waste printed circuit boards (WPCBs) has drawn increasing global concern especially because the high bromine (Br) content (5–15 ) places obstacles in the way of simple disposal techniques. Microwave-induced pyrolysis of WPCBs provides a promising way to dispose of these hazardous and resource-filled wastes. The

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     · Electronic waste or e-waste is an emerging problem with developed nations as with developing nations. In the absence of proper collection and disposal systems awareness and proper regulations the problem is rather more acute in developing nations. These wastes are environmentally hazardous on one hand and valuable on the other. They contain substantial amount of metal value

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     · Nowadays a large quantity of Light Emitting Diodes (LEDs) have been produced and updated with the development of optoelectronic industry. At the same time many waste LEDs are discarded. However there are many metals and non-metals in waste LEDs which may cause secondary pollution and waste of resources if disposed improperly. In this study solvent method was used to dissociate the waste

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     · The total quantity of generated packaging materials rose by 6.7 million tonnes from 2008 to 2018 ( 9.4 ). In 2018 the total volume of packaging waste generated was estimated at 77.7 million tonnesa slight increase of 0.3 compared with 2017.

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     · The recycling process comprised vacuum pyrolysis and mechanical processing. At the first stage of this work approximately 3 kg of WPCB were first cut into fragments of about 5 cm 5 cm using an electrical saw and then pyrolyzed under vacuum in a fixed bed reactor to separate and recover organic resins.At the second stage the residues obtained at the first stage were investigated to

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  • A Review of Technology of Metal Recovery from Electronic

     · Electronic waste or e-waste is an emerging problem with developed nations as with developing nations. In the absence of proper collection and disposal systems awareness and proper regulations the problem is rather more acute in developing nations. These wastes are environmentally hazardous on one hand and valuable on the other. They contain substantial amount of metal value

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