Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Co-disposal of hexabromocyclododecane (HBCD)-containing waste during municipal solid waste incineration (MSWI) was conducted, achieving a destruction efficiency exceeding 99.999%. Simultaneous determination of HBCD, polybrominated diphenyl ethers (PBDEs) and polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) at multiple stages of a MSWI plant was performed. This aimed to clarify their concentration and congener variations along the flue, with the goal of elucidating their formation mechanisms and control. This study confirmed that HBCD was present in daily MSW, and that PBDEs and PBDD/Fs can be unintentionally produced. The average mass emission factors of HBCD, PBDEs, and PBDD/Fs from stack gas were 6.4 ± 5.0, 98.8 ± 4.6, and 2.8 ± 1.7 μg t, respectively. HBCD and PBDEs were much higher in slag, raising concerns about the secondary release of brominated pollutants during the reprocessing or reuse of incinerator slag. The concentrations of PBDEs and PBDD/Fs increased after the air pollution control devices, largely due to the "memory effect", with regenerated PBDD/Fs being mainly high-brominated homologs. The disposal of HBCD increased PBDEs concentration and altered PBDD/F homolog distribution. Possible formation pathways of PBDEs and PBDD/Fs from HBCD were proposed. HBCD could degraded into brominated short-chain hydrocarbons and aromatic fragments, which may promote the formation of PBDEs and PBDD/Fs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jenvman.2024.123051 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Enrichment of Persistent Organic Pollutants in Microplastics from Coastal Waters.
Environ Sci Technol
December 2024
Institute of Ocean Technology and Marine Affairs, National Cheng Kung University, No. 1, University Road, Tainan City 701401, Taiwan.
Despite the adsorption of microplastics (MPs), the precise quantification of their concentrating effect on persistent organic pollutants (POPs) remains uncertain. Therefore, in this study, POPs in MPs, POPs in suspended particulate matter (SPM), and dissolved POPs in seawater were distinguished to quantify the enrichment factor (EF) for characterizing the concentrating effects of MPs and SPM on POPs. The results showed that the logarithm of EF (log EF) for POPs in MPs was 5.
View Article and Find Full Text PDFCharacterizing persistent organic pollutants in seawater at a multifunctional international harbor influenced by industrial riverbank activities.
Mar Pollut Bull
December 2024
Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan. Electronic address:
Article Synopsis
- - The study investigates persistent organic pollutants (POPs) in Kaohsiung Harbor seawater, revealing varying toxicity levels, with dioxins (PCDD/Fs) making up 68% of total toxicity.
- - Most POPs are found in the particle phase, suggesting common pollution sources, particularly in areas affected by river effluents.
- - The research highlights that certain pollutants can transform under UV light and stresses the importance of better wastewater practices and regulations to manage POPs in marine environments.
Emission characteristics and process distributions of multiple brominated persistent organic pollutants during co-disposal of hexabromocyclododecane-containing waste in a municipal solid waste incinerator.
J Environ Manage
November 2024
State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering of Zhejiang University, Hangzhou, 310027, China.
Article Synopsis
- Co-disposing HBCD-containing waste in municipal solid waste incineration achieves over 99.999% destruction efficiency, but raises concerns about the formation of other harmful compounds.
- The study monitored the levels of HBCD, PBDEs, and PBDD/Fs at various stages of incineration, revealing their unintended production and concentration increases due to the "memory effect".
- High levels of HBCD and PBDEs were found in slag, suggesting potential secondary pollution risks during slag reuse, and possible pathways for their formation from HBCD were proposed.
Accumulation of persistent organic pollutants by MPs in coastal wastewater treatment plants.
Mar Pollut Bull
October 2024
Institute of Ocean Technology and Marine Affairs, National Cheng Kung University, No.1, University Road, Tainan City 701, Taiwan. Electronic address:
The abundance and fate of microplastics (MPs) in wastewater treatment plants (WTPs) has been reported extensively. However, in the wastewater, the extent to which hazardous chemicals such as persistent organic pollutants (POPs) accumulated by MPs not been clearly explored. In this study, MPs was sampled from influents and effluents in WTPs to characterize POPs in sorption within MPs.
View Article and Find Full Text PDFHalogenated aromatic pollutants in routine animal-derived food of south China: Occurrence, sources, and dietary intake risks.
Environ Pollut
June 2024
State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
Halogenated aromatic pollutants (HAPs) including polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs), polychlorinated biphenyls (PCBs), polybrominated dibenzo-p-dioxins/furans (PBDD/Fs), and polybrominated diphenyl ethers (PBDEs) exhibit diverse toxicities and bio-accumulation in animals, thereby imposing risks on human via animal-derived food (ADF) consumption. Here we examined these HAPs in routine ADFs from South China and observed that PBDEs and PCBs showed statistically higher concentrations than PCDD/Fs and PBDD/Fs. PCDD/Fs and PCBs in these ADFs were mainly from the polluted feed and habitat of animals, except PCDD/Fs in egg, which additionally underwent selective biotransformation/progeny transfer after the maternal intake of PCDD/F-polluted stuff.
View Article and Find Full Text PDF