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| Pollutant Emission Characteristics and Migration Law of Typical Waste Circuit Board Smelting Process |
| Received:February 10, 2022 Revised:March 02, 2022 |
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| DOI：doi：10.3969/j.issn.1007-7545.2022.08.016 |
| KeyWord:waste circuit board; smelting; pollutant emission; heavy metals; emission characteristics; migration law |
| Author | Institution |
| WANG Fang |
矿冶科技集团有限公司 |
| HUANG Xue-yue |
广西壮族自治区固体废物和化学品环境管理中心 |
| LIU Yan-li |
矿冶科技集团有限公司 |
| TONG Zhen-song |
矿冶科技集团有限公司 |
| ZHAO Zhi-long |
矿冶科技集团有限公司 |
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| Abstract: |
| Content of Cu in currently widely-used printed circuit board is 20%-30%. Waste circuit board smelting enterprises recycle Cu and other metal elements from waste circuit boards, and the smelting process generates waste gas, waste water and solid waste. The pollutant emission characteristics of a typical waste circuit board smelting enterprises were analyzed and the emission coefficients of main air pollutants were calculated. The main existing forms of heavy metals were measured to reveal the migration law of heavy metal pollutants in the molten pool smelting process. Cu, Pb and Sn were determined as the key heavy metal pollutants, and the proportions of different occurrence objects were compared. |
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