He has published more than 100 peer reviewed articles and applied for more than 30 patents. His recent researches address effective recycling of solid wastes, including valuable matters recovery and functional materials development from electronic waste, construction waste, municipal solid waste and bio-waste. Safely recycling CRTs saves energy and conserves resources, allows the recovered lead to be reused in other ways, and reduces the amount of lead in landfills. He got his PhD in the field of Environmental Engineering from Tohoku University (Japan), and carried out Post-doctoral researches at the University of Michigan (USA) and Nagoya University (Japan). Accordingly, this study developed a practical and environmental-friendly process for detoxification and reclamation ofįu-Shen Zhang, PhD, is Professor and Director of Solid Waste Recycling Department at Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Toxicity characteristic leaching procedure results showed that lead leaching from the residue glass met the USEPA Temperature, pressure and argon gas flow rate were the major parameters controlling lead evaporation ratio and the morphology of In the synthesis process, lead oxide in the funnel glass was firstly reduced to elemental lead, and evaporated rapidly in vacuumĬircumstance, then quenched and formed nano-size particles on the surface of the cooling device.
The process was to evaporate lead out of the glass to obtain harmless glass powder and synchronously produce lead nanoparticles. Of glass was developed by combining vacuum carbon-thermal reduction and inert-gas consolidation procedures. In the present study, a novel process for lead nanopowder synthesis from this type Living environment due to improper treatment. CRTįunnel glass generally contains high level of PbO, which is classified as hazardous waste. Abstract: Recycling end-of-life electronics is an important and growing issue facing. Replaced by advanced displays such as liquid crystal display and plasma display, resulting in a huge number of waste CRTs. Cathode ray tube manufacturing and recycling: analysis of industry survey. Scientific Tracks Abstracts: Int J Waste Resour Abstract:Ĭathode ray-tube (CRT) is an important device mainly used as video display component in television and computer. 'Glass waste from cathode-ray tubes and other activated glasses').
Cathode ray tubes recycle free#
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, China Recycled/Recyclable Printed with Vegetable Oil Based Inks on 1 00 Postconsumer, Process Chlorine Free Recycled Paper (2) The recycling process produces a valuable product or intermediate. Through the presented results can be concluded that computer monitors CRTs has potential for be recycled, because present great amounts of SiO 2, oxide that forms the vitreous net.Recycling approaches of waste cathode ray-tube in China 2 nd World Congress and Expo on Recycling July 25-27, 2016 Berlin, Germany Vitreous samples X-ray diffractions of residues of the funnel and the screen are to each other similar, presenting an amorphous band that indicates silica presence, with absence of crystalline phases. Screen presents significant amounts of barium oxide (10.75%) and strontium oxide (7.71%). Funnel presented 29.47% of lead oxide (PbO) while this oxide is absent in the screen. After analyses it was observed that glasses of the screen and of the funnel presented different chemical compositions, being silicium oxide (SiO 2) the component of larger percentage in these glasses, 59.89% and 48.63%, for screen and funnel, respectively. Got any old CRT (Cathode Ray Tube) monitors you want to get rid of In recent years, we’ve started to replace cathode ray tubes with LCD displays, leaving consumers with unwanted monitors taking up space. However, this currently represents only a very. For its characterization were used techniques: X-Ray Fluorescence, Granulometric Analysis, X-Ray Diffraction. This material is generally not accepted for reuse as a component only those from televisions can be reused. This work had as objective to collect and characterize vitreous residues originating from Cathode Ray Tubes or, popularly, "image tubes", identified for the acronym CRT, which integrate computers monitors that will be recycled in the production of handicrafts. The leaded glass (funnel-24, neck-30) may seriously pollute the environment if it is not properly disposed of. The vigorous industrialization of the modern world and the incorporation of new consumption habits of society made appears electronic waste. Cathode ray tubes (CRTs) from these machines consist of 85 glass (65 panel, 30 funnel and 5 neck glass).
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