研究目的
Investigating the recovery of metal fragments from kerf slurry waste produced during the manufacture of photovoltaic solar cells to reduce production costs and environmental impact.
研究成果
The study demonstrated the feasibility of recovering metal fragments from kerf slurry waste using dry magnetic separation with an efficiency of 96%. This approach contributes to reducing the cost of photovoltaic production and mitigating environmental problems associated with slurry waste.
研究不足
The study focused on the recovery of metal fragments and did not address the separation of silicon carbide and silicon due to their similar density and size. The efficiency of dry magnetic separation was estimated but not compared with other separation techniques.
1：Experimental Design and Method Selection:
The study involved washing the slurry waste with acetone to dissolve polyethylene glycol, drying the solid phase, and applying dry magnetic separation under different electric current intensities to recover metals.
2：Sample Selection and Data Sources:
The slurry was obtained from CRTSE facilities.
3：List of Experimental Equipment and Materials:
Acetone, oven, dry magnetic separator, X-ray diffractometer, scanning electron microscope.
4：Experimental Procedures and Operational Workflow:
The slurry was washed with acetone, dried, and then subjected to dry magnetic separation. The metal-containing phase was characterized.
5：Data Analysis Methods:
The efficiency of metal recovery was estimated, and a simulation was performed to validate the effectiveness of the magnetic field in separating metal fragments.
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