Dioxins sources and current remediation technologies — A review

Kulkarni, Prashant S.; Crespo, João G.; Afonso, Carlos A. M.

doi:10.1016/j.envint.2007.07.009

Cited by 406 publications

(239 citation statements)

References 111 publications

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“…Once released into various environmental compartments such as air, water, soil, sediment and food, they can be dispersed on global scale and pose serious health and environmental risks [3,4]. Thus, issues associated with unintentional POP formation, emission, transport, abatement, and environmental risk assessment have been intensively investigated [5][6][7][8][9]. Over the past decade, many sources of PCDD/Fs have been documented in national inventories, as required of signatories to the Stockholm Convention on Persistent Organic Pollutants [10].…”

Section: Introductionmentioning

confidence: 99%

A preliminary investigation of unintentional POP emissions from thermal wire reclamation at industrial scrap metal recycling parks in China

Nie

Zheng

Liu

et al. 2012

Journal of Hazardous Materials

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a b s t r a c tThermal wire reclamation is considered to be a potential source of unintentional persistent organic pollutants (unintentional POPs). In this study, unintentional POP concentrations, including PCDD/Fs, dioxin like PCBs (dl-PCBs), polychlorinated naphthalenes (PCNs), hexachlorobenzene (HxCBz) and pentachlorobenzene (PeCBz), were quantified in flue gas and residual ash emissions from thermal wire reclamation at scrap metal dismantling parks in Zhejiang Province, China. The total average TEQ emissions of the investigated unintentional POPs from flue gas and residual ash in two typical scrap metal recycling plants ranged from 13.1 to 48.3 ng TEQ N m −3 and 0.08 to 2.8 ng TEQ g −1 , respectively. The dominant PCDD/F congeners were OCDD, 1,2,3,4,6,7,8-HpCDD, OCDF and 1,2,3,4,6,7,8-HpCDF, while PCB-126 and PCB-169 were the main contributors to the toxicity of the dl-PCBs. There were clear differences in the distribution dl-PCBs congeners contributing to the TEQ concentrations in the flue gas samples from the two plants. The PCN TEQs were dominated by PCN-66/67 and PCN-73. Although thermal wire reclamation in incinerators has been proposed as an alternative to open burning, there are still considerable environmental risks associated with regulated incinerators, and unintentional POP emissions from thermal wire reclamation sites need to be controlled by local government agencies.

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Section: Introductionmentioning

confidence: 99%

A preliminary investigation of unintentional POP emissions from thermal wire reclamation at industrial scrap metal recycling parks in China

Nie

Zheng

Liu

et al. 2012

Journal of Hazardous Materials

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“…Many studies have been carried out to identify the factors influencing PCDD/F emissions, such as studies on PCDD/F emission character analysis (Antunes et al, 2012), on the PCDD/F formation mechanism in industrial production processes (Dickson et al, 1992), and on technology improvements in production and air pollution control equipment (Kulkarni et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Factors influencing polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (PCDD/F) emissions and control in major industrial sectors: Case evidence from Shandong Province, China

Wang

Lü

et al. 2014

Journal of Environmental Sciences

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“…PCDD/Fs are stable in the environment, undergo long-range transport in the atmosphere and can bioaccumulate in the ecosystem via the food chain . Unintentionally produced PCDD/Fs can be released into the environment from various thermal processes (Fiedler 1996;Kulkarni et al 2008;Schuhmacher et al 1997). Among these processes, municipal solid waste incineration, as an important PCDD/Fs emission source, is closely linked with people's lives and therefore causes widespread public concern (Lu et al 2012;Lee et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in soil around a municipal solid waste incinerator

Liu

Tian

et al. 2013

Environ Geochem Health

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Municipal solid waste incinerators (MSWIs) are usually considered to be important sources of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs). To examine the influence of PCDD/Fs emissions from a MSWI on the surrounding environment, 21 soil samples were collected from various sampling sites distributed at distances of 300-1,700 m away from the stack of a MSWI. International Toxic Equivalent (I-TEQ) concentrations ranged from 0.47 to 2.07 pg I-TEQ g -1 , with average and median concentrations of 1.08 and 1.05 pg I-TEQ g -1 , respectively. Comparison of the results presented herein with other worldwide studies suggested that the concentrations of PCDD/Fs in the ambient soil were relatively low, indicating a limited impact on the surrounding environment. The emission concentrations from the incinerator were the critical factor in generating an environmental impact on the surrounding environment. An exponential function was developed, indicating a slight decline in TEQs of PCDD/Fs with increasing distance from the MSWI stack. The ordinary kriging interpolation technique was selected to create a contour map, which intuitively showed that a limited surrounding area (B1,000 m from the stack) was obviously influenced by the MSWI.

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Dioxins sources and current remediation technologies — A review

Cited by 406 publications

References 111 publications

A preliminary investigation of unintentional POP emissions from thermal wire reclamation at industrial scrap metal recycling parks in China

A preliminary investigation of unintentional POP emissions from thermal wire reclamation at industrial scrap metal recycling parks in China

Factors influencing polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (PCDD/F) emissions and control in major industrial sectors: Case evidence from Shandong Province, China

Spatial distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in soil around a municipal solid waste incinerator

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