With the global warming of concern,the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive because of its economic and environmental benefits.In this work,re...With the global warming of concern,the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive because of its economic and environmental benefits.In this work,recycling of automotive aluminum is reviewed to highlight environmental benefits of aluminum recycling,use of aluminum alloys in automotive applications,automotive recycling process,and new technologies in aluminum scrap process.Literature survey shows that newly developed techniques such as laser induced breakdown spectroscopy(LIBS) and solid state recycling provide promising alternatives in aluminum scrap process.Compared with conventional remelting and subsequent refinement,solid state recycling utilizing compression and extrusion at room or moderate temperature can result in significant energy savings and higher metal yield.展开更多
Municipal Solid Waste(MSW)management in China has been transitioning from a mixed collection and treatment system to a separated collection and treatment system.The continuous rise of MSW treatment capacity and the op...Municipal Solid Waste(MSW)management in China has been transitioning from a mixed collection and treatment system to a separated collection and treatment system.The continuous rise of MSW treatment capacity and the optimization of technology structure provided basic facility support for China to promote MSW separation at source.China preferred a four-type separation system.Regulated recycling should be enhanced to improve the efficiency and sustainability of recycling industry.As food waste is the main composition of MSW in China,20%-30%of the food waste diversion and land application could maximize the comprehensive environmental performance.Incineration is to be the pillar technology in MSW separated treatment system in China.展开更多
基金Project(FRINAT) supported by the Research Council of Norway (RCN)
文摘With the global warming of concern,the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive because of its economic and environmental benefits.In this work,recycling of automotive aluminum is reviewed to highlight environmental benefits of aluminum recycling,use of aluminum alloys in automotive applications,automotive recycling process,and new technologies in aluminum scrap process.Literature survey shows that newly developed techniques such as laser induced breakdown spectroscopy(LIBS) and solid state recycling provide promising alternatives in aluminum scrap process.Compared with conventional remelting and subsequent refinement,solid state recycling utilizing compression and extrusion at room or moderate temperature can result in significant energy savings and higher metal yield.
基金National Key R&D Program of China(Grant No.2108YFC1902906).
文摘Municipal Solid Waste(MSW)management in China has been transitioning from a mixed collection and treatment system to a separated collection and treatment system.The continuous rise of MSW treatment capacity and the optimization of technology structure provided basic facility support for China to promote MSW separation at source.China preferred a four-type separation system.Regulated recycling should be enhanced to improve the efficiency and sustainability of recycling industry.As food waste is the main composition of MSW in China,20%-30%of the food waste diversion and land application could maximize the comprehensive environmental performance.Incineration is to be the pillar technology in MSW separated treatment system in China.
