Thermal degradation and pollutant emission from waste printed circuit boards mounted with electronic components
نویسندگان
چکیده
منابع مشابه
Kinetic Analysis and Pollutant Evolution during Thermal Degradation of Printed Circuit Boards Considering the Effect of Metals
A kinetic study has been carried out by thermogravimetry in order to compare the thermal behavior of printed circuit boards of mobile phones before and after the removal of the metallic fraction. Experiments were performed in nitrogen atmosphere (pyrolysis runs) as well as in an oxidative atmosphere (10% and 20% oxygen in nitrogen). Several dynamic and dynamic + isothermal runs have been carrie...
متن کاملMass analysis of the components separated from printed circuit boards
Methods of effective and ecological recycling of printed circuit boards (PCBs) are searched all over the world at this time. The material composition and temperature properties of PCB are necessary to be known for an optimal recycling technology. For this purpose we analyzed weight ratio of the electronic components moulded on the selected kinds of PCBs and next we formulated mathematic model o...
متن کاملAutomated Inspection System for Electronic Devices Mounted on Printed Circuit Boards Using Light-Section Method
An automated system has been developed to visually inspect surface mount devices (SMDs) on printed circuit boards (PCBs). The location of an SMD is recognized from range data detected by the light section method. Since the PCB surface is treated as the base height in a recognition task, its accurate determination is extremely important, especially for reliable inspection of small SMDs such as 1...
متن کاملLeaching of Gold from the Waste Mobile Phone Printed Circuit Boards (PCBs) with Ammonium Thiosulphate
The rapid growth in the use of electronic equipments, combined with early obsolescence has contributed enormously to the generation of large quantity of electronic (e) waste. One such e-waste, the mobile phone printed circuit boards (PCBs) contain various precious metals which can be extracted by different hydrometallurgical routes. The present work deals with the recovery of gold using ammoniu...
متن کاملRecycling of Printed Circuit Boards
Printed circuit boards (PCBs) can be found in any piece of electrical or electronic equipment: nearly all electronic items, including calculators and remote control units, contain large circuit boards; an increasing number of white goods, as washing machines contains circuit boards for example in electronic timers. PCBs contain metals, polymers, ceramics and are manufactured by sophisticated te...
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ژورنال
عنوان ژورنال: Journal of Hazardous Materials
سال: 2020
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2019.121038