Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review
Abstract With the improvements seen in electronic equipment in recent years, the amount of electronic waste generated has increased dramatically. Researchers must find a way to treat waste printed circuit boards (WPCBs) without harming the environment as soon as possible. The disposal of WPCBs gener...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2023-10-01
|
| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.230135 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823862821111201792 |
|---|---|
| author | Jun Wan Jia Sun Xiang-Lin Zhao An-Sheng Le Peng-Bo Ren Ming-Xiu Zhan Xiao-Qing Lin Tong Chen |
| author_facet | Jun Wan Jia Sun Xiang-Lin Zhao An-Sheng Le Peng-Bo Ren Ming-Xiu Zhan Xiao-Qing Lin Tong Chen |
| author_sort | Jun Wan |
| collection | DOAJ |
| description | Abstract With the improvements seen in electronic equipment in recent years, the amount of electronic waste generated has increased dramatically. Researchers must find a way to treat waste printed circuit boards (WPCBs) without harming the environment as soon as possible. The disposal of WPCBs generates many brominated pollutants, which have a great impact on human health and the surrounding environment. At present, research on the WPCB disposal process has mainly been focused on efficient resource recovery; studies of pollutant emission have been limited to chlorinated dioxins, and research on brominated pollutants is relatively limited. This paper summarizes and analyzes the brominated pollutants emitted during the recycling of waste circuit boards, summarizes the sources and paths for the generation of brominated pollutants, and describes a series of studies performed to determine the emission characteristics and impact factors for brominated pollutants. The effects of raw materials, temperature, atmosphere, and reaction time on the emission of brominated pollutants are discussed, as are three methods of controlling the pollutants. It was found that when the temperature was controlled at 850–1200°C, the reaction time was greater than 2 s, the air flow rate was 3–4.5 m s−1, and the excess air coefficient was 1–2, the impact of pollutant emissions was relatively small. It is hoped that this paper will provide help to other researchers and practitioners on WPCB recycling. |
| format | Article |
| id | doaj-art-7abd4c2ef14f4abdb58c2678506ae52e |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-7abd4c2ef14f4abdb58c2678506ae52e2025-02-09T12:23:11ZengSpringerAerosol and Air Quality Research1680-85842071-14092023-10-01231212110.4209/aaqr.230135Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A ReviewJun Wan0Jia Sun1Xiang-Lin Zhao2An-Sheng Le3Peng-Bo Ren4Ming-Xiu Zhan5Xiao-Qing Lin6Tong Chen7Daye Nonferrous Metals Co., Ltd.College of Metrology and Measurement Engineering, China Jiliang UniversityDaye Nonferrous Metals Co., Ltd.Daye Nonferrous Metals Co., Ltd.Daye Nonferrous Metals Co., Ltd.College of Metrology and Measurement Engineering, China Jiliang UniversityState Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang UniversityState Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang UniversityAbstract With the improvements seen in electronic equipment in recent years, the amount of electronic waste generated has increased dramatically. Researchers must find a way to treat waste printed circuit boards (WPCBs) without harming the environment as soon as possible. The disposal of WPCBs generates many brominated pollutants, which have a great impact on human health and the surrounding environment. At present, research on the WPCB disposal process has mainly been focused on efficient resource recovery; studies of pollutant emission have been limited to chlorinated dioxins, and research on brominated pollutants is relatively limited. This paper summarizes and analyzes the brominated pollutants emitted during the recycling of waste circuit boards, summarizes the sources and paths for the generation of brominated pollutants, and describes a series of studies performed to determine the emission characteristics and impact factors for brominated pollutants. The effects of raw materials, temperature, atmosphere, and reaction time on the emission of brominated pollutants are discussed, as are three methods of controlling the pollutants. It was found that when the temperature was controlled at 850–1200°C, the reaction time was greater than 2 s, the air flow rate was 3–4.5 m s−1, and the excess air coefficient was 1–2, the impact of pollutant emissions was relatively small. It is hoped that this paper will provide help to other researchers and practitioners on WPCB recycling.https://doi.org/10.4209/aaqr.230135Waste circuit boardsBrominated pollutantsPollutant controlEmission characteristicsInfluence factorGenerate path |
| spellingShingle | Jun Wan Jia Sun Xiang-Lin Zhao An-Sheng Le Peng-Bo Ren Ming-Xiu Zhan Xiao-Qing Lin Tong Chen Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review Aerosol and Air Quality Research Waste circuit boards Brominated pollutants Pollutant control Emission characteristics Influence factor Generate path |
| title | Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review |
| title_full | Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review |
| title_fullStr | Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review |
| title_full_unstemmed | Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review |
| title_short | Emission of Brominated Pollutants from Waste Printed Circuit Boards during Thermal Treatment: A Review |
| title_sort | emission of brominated pollutants from waste printed circuit boards during thermal treatment a review |
| topic | Waste circuit boards Brominated pollutants Pollutant control Emission characteristics Influence factor Generate path |
| url | https://doi.org/10.4209/aaqr.230135 |
| work_keys_str_mv | AT junwan emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT jiasun emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT xianglinzhao emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT anshengle emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT pengboren emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT mingxiuzhan emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT xiaoqinglin emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview AT tongchen emissionofbrominatedpollutantsfromwasteprintedcircuitboardsduringthermaltreatmentareview |