Dioxins, furans and polycyclic aromatic hydrocarbons emissions from a hospital and cemetery waste incinerator

Mininni, Giuseppe; Sbrilli, Andrea; Braguglia, Camilla Maria; Guerriero, Ettore; Marani, D.; Rotatori, Mauro

doi:10.1016/j.atmosenv.2007.07.015

Cited by 41 publications

(22 citation statements)

References 25 publications

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“…The mean PCDD/Fs and I-TEQ were 58.6 ng/g and 6.20 ng I-TEQ/g, respectively, which exceeds the regulatory standard of the Taiwan EPA (the limit of 1 ng I-TEQ/g) (Taiwan EPA, 2008). The PCDD/F content in the fly ash is close to that in Mininni's study (1.7-147 ng I-TEQ/g), which investigated PCDD/F formation in fly ash collected from a hospital incinerator (Mininni et al, 2007). The ratio of PCDD/PCDF was 0.251, indicating that the dominant congeners were PCDFs.…”

Section: Composition and Pcdd/f Content In Medical Waste And Raw Fly Ashmentioning

confidence: 61%

Effect of Temperature and CaO Addition on the Removal of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Fly Ash from a Medical Waste Incinerator

Wang

Hsieh

et al. 2012

Aerosol Air Qual. Res.

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The effects of thermal treatment temperature and CaO addition on polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) content in the fly ashes from a medical waste incinerator with high chlorine content (7.5%) were investigated. Two kinds of batch mode were examined: without CaO addition under the temperature range of 50-850°C, and with CaO addition at various Ca/Cl molar ratios (CCR = 0.8-44.3) at 250°C.The results show that the PCDD/F content in raw fly ash was 6.20 ng I-TEQ/g. When elevating the temperature from 50 to 400°Cwithout CaO addition, the PCDD/F content dramatically increased from 5.38 to 575 ng I-TEQ/g. Even at 850°C, the PCDD/Fs were not destructed apparently and were still with a concentration of 401 ng I-TEQ/g. However, with the addition of CaO at CCR = 17.7 at only 250°C, the removal ratio of PCDD/Fs reached to 87.2% and the PCDD/F content was significantly reduced to 0.889 ng I-TEQ/g, which meets the soil pollution standard of Taiwan EPA (1 ng I-TEQ/g) and could be considered as backfill. CaO addition was proven efficiently to enhance the reduction rate of PCDD/Fs in fly ashes during the thermal treatment at a low temperature, as well as inhibit the formation of PCDD/Fs.

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Section: Composition and Pcdd/f Content In Medical Waste And Raw Fly Ashmentioning

confidence: 61%

Effect of Temperature and CaO Addition on the Removal of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Fly Ash from a Medical Waste Incinerator

Wang

Hsieh

et al. 2012

Aerosol Air Qual. Res.

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“…Due to inadequate temperature generated in the process chamber, incinerators create extremely toxic products like furans and dioxins. Dioxins and furans may also be found in the bottom ash (TEQ level range from 106ng/kg to 466ng/kg with a mean value of 258ng/kg in municipal waste incinerators in India and fly ash has higher contamination levels 13000ngTEQ/kg).This can create air pollution or even the toxic pollutants can stay behind in the bottom ash, ultimately finding their way into the landfills [32]. Thus the incineration ash is potentially hazardous.…”

Section: Bio-medical Waste Treatmentsmentioning

confidence: 99%

A Study on the need for Bio-Medical Waste Management-Available Treatment Techniques and Suggestions

Mathew¹,

Abitha²,

Farah³

et al. 2017

DJ IJAMMR

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The failure to address the bio-medical wastes, has led the health domain into a place where a patient who has just undergone a treatment and treated successfully, to still be prone to many diseases which he hasn't faced at all. The patient can grow immunity to a disease that he was cured of. But, that very same patient, in no case can build a resistant power to resist diseases, if his surrounding is not infective free. The improper management of biomedical wastes have not only affected the patients inside the clinical establishments, but also the people who have no contact with the clinical establishments at all. In this scenario, proper sanitation practices must be adopted and biomedical wastes should be managed for a disease free and hygienic clinical surrounding. This review focuses on the need for biomedical waste management in clinical establishments, emphasizes the possible sources of bio-wastes, methods and technologies for combating and minimizing bio-hazards arising from biowastes and finally outlines the overall process of biomedical waste management.

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“…Several researches reported that chlorine plays a significant role in the formation of PCDD/Fs via de novo synthesis, which is a key process in MWIs during precursor formation (Takeshi et al, 2005;. Grochowalski (1998) reported that most MWIs with two-stage thermal processes in Poland can meet the emissions standard of 0.1 ng I-TEQ/Nm 3 that is adopted by most developed countries (Mininni et al, 2007;Streibel et al, 2007), although other studies reported that this is difficult to achieve in Italy, Colombia, China and Taiwan (Mininni et al, 2007;Hoyos et al, 2008;Lee et al, 2008;Gao et al, 2009). The 2004 European Dioxin Emission Inventory Project showed that are still an unknown number of medical waste incinerators with a large degree of variability in their emissions, and which can thus be considered important local sources of pollution (Quass et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The PCDD/F Removal Efficiency of a Medical Waste Incinerator Dual-Bag Filter System

Chen

Lin

Wang

et al. 2014

Aerosol Air Qual. Res.

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This study investigated the polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) removal efficiencies in two medical waste incinerators (MWIs) -MWI-A and MWI-B, with waste burning capacities of 9.12 and 12 tons per day, with dual-and single-bag filter systems, respectively. The PCDD/Fs in the stack flue gas and fly ashes of each air pollution control device (APCD) unit were collected concurrently. Based on mass balance, it was determined that the major PCDD/F removal occurred in the bag filter system with activated carbon injection (ACI). The total PCDD/F emission removal efficiencies for the whole dual-bag filter system, bag filter 1 (BF1), bag filter 2 (BF2) in MWI-A and the single bag filter system (BF) in MWI-B were 99.7%, 84.8%, 98.0%, 99.0% on the mass basis, respectively. The PCDD/F emission ratio (the escaped PCDD/F ratio after all APCDs) with the dual-bag filter system was over four times lower than that with a single bag filter. The results demonstrate a very efficient way to reduce the excess PCDD/F emissions incurred by intermittent operations and irregular waste feeding.

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Dioxins, furans and polycyclic aromatic hydrocarbons emissions from a hospital and cemetery waste incinerator

Cited by 41 publications

References 25 publications

Effect of Temperature and CaO Addition on the Removal of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Fly Ash from a Medical Waste Incinerator

Effect of Temperature and CaO Addition on the Removal of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Fly Ash from a Medical Waste Incinerator

A Study on the need for Bio-Medical Waste Management-Available Treatment Techniques and Suggestions

The PCDD/F Removal Efficiency of a Medical Waste Incinerator Dual-Bag Filter System

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