研究目的
To estimate the hazardous characteristics for the overall mixture and the components from end-of-life linear LED lamps.
研究成果
The overall mixture of end-of-life linear LED lamps can be classified as non-hazardous waste, while LED and the driver as components can be classified as hazardous wastes due to the leaching concentrations of As, Pb, and Cu exceeding regulatory levels.
研究不足
The study focused on linear LED lamps and may not be applicable to other types of LED lamps. The hazardous effect of LED and the driver to the overall mixture of end-of-life linear LED lamp is limited due to their small portion.
1:Experimental Design and Method Selection:
Leaching tests such as Korea Extraction Test (KET) and Toxicity Characteristics Leaching Procedure (TCLP) were carried out for the overall mixture and each component of end-of-life linear LED lamps.
2:Sample Selection and Data Sources:
End-of-life linear LED lamps were collected from remodeling and demolition of commercial buildings and households.
3:List of Experimental Equipment and Materials:
Atomic Absorption Spectrometer (PG-990, PG industry) was used to analyze the leaching concentration of heavy metals.
4:Experimental Procedures and Operational Workflow:
The samples were prepared and subjected to KET and TCLP procedures, followed by analysis of heavy metals in the leaching solution.
5:Data Analysis Methods:
Measurements were conducted 3 times for every leaching solution to estimate the average value of the leaching concentration.
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