NDLI: Performance evaluation of material separation from spent fluorescent lamps using the thermal end-cutting method

Content Provider	Springer Nature Link
Author	Rhee, Seung Whee Choi, Hyo Hyun Park, Hun Su
Copyright Year	2013
Abstract	The recovery of valuable materials such as aluminum, phosphor powder, and glass from spent fluorescent lamps (SFLs) is part of the overall recycling process of lamps. In the end-cutting process, an SFL is separated into a base cap and a glass part using thermal shock caused by the temperature difference between the heating unit and the cooling unit. The separation efficiency of the end-cutting system is estimated by measuring the mass of the parts of the SFL. The optimum condition of the end-cutting process with thermal shock was determined to have a temperature difference of 600 °C and moving speed of 2 cm/s. At optimum conditions, the separation efficiency of glass and the end cap from an SFL using the end-cutting method is estimated to be more than about 97 %. In an air injection system, however, the separation efficiency of phosphor powder from glass is less than 50 %. Separation efficiency in the end-cutting system is increased by decreasing the moving speed of the SFL and increasing the temperature difference between the heating unit and the cooling unit. From the results of experiments, it was found that the end-cutting unit has very high performance because the overall separation efficiency is more than 95 %.
Starting Page	503
Ending Page	509
Page Count	7
File Format	PDF
ISSN	14384957
Journal	Journal of Material Cycles and Waste Management
Volume Number	15
Issue Number	4
e-ISSN	16118227
Language	English
Publisher	Springer Japan
Publisher Date	2013-07-31
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Spent fluorescent lamp (SFL) End-cutting Phosphor powder Separation efficiency Recycling Civil Engineering Waste Management/Waste Technology Environmental Management
Content Type	Text
Resource Type	Article
Subject	Waste Management and Disposal Mechanics of Materials

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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