Partitioning and removal of dioxin-like congeners in flue gases treated with activated carbon adsorption

Hsien, Kai; Chang, S. L.; Huang, Chia Hua; Huang, Hung Chi; Chang, Moo Been

doi:10.1016/j.chemosphere.2005.12.072

Cited by 64 publications

(34 citation statements)

References 11 publications

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“…According to previous studies (Nagano et al, 2000;Inoue and Kawamoto, 2005;Chi et al, 2006;Zhou et al, 2014), there are three main factors of adsorbent to effect the remove efficiency: (1) Mesopores volume. A higher mesopores volume increases the adsorption ability of PCDD/Fs and facilitates the internal diffusion of PCDD/F-molecules.…”

Section: Adsorption Mechanismmentioning

confidence: 99%

Experimental Study on PCDD/Fs Adsorption onto Nano-Graphite

Lin

et al. 2016

Aerosol Air Qual. Res.

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The adsorption of the 17 toxic 2,3,7,8-substituted dioxin congeners onto graphite was investigated using a laboratoryscale fixed-bed adsorption system. First, the morphology and microstructure of graphite were characterized by Scanning Electron Microscopy and Brunauer-Emmer-Teller surface estimation. Removal efficiency of the 17 toxic PCDD/Fs varies from 89.31% to 99.96% and the amount adsorbed on graphite is a linear function of the inlet concentration of PCDD/Fs, as it was varied from 2.3-20.7 ng I-TEQ Nm -3 . Operating over 3 hours, it is observed that the saturation time of fixed-bed adsorbers is less when the inlet concentration is higher. The removal efficiency of dioxin depends on vapour pressure and rises strongly with increasing chlorine substitution number. Removal efficiencies strongly correlate with vapour pressure, with R 2 0.96 for PCDDs and 0.99 for PCDFs, respectively. The removal efficiency of dioxin decreases linearly as the temperature increased (R 2 = 0.99). Possibly, π-π interactions between PCDD/Fs and graphite sheets lead to a high adsorption capacity of dioxin. The high mesopores volume and pore structure of graphite are critical factors when adsorbing dioxin.

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Section: Adsorption Mechanismmentioning

confidence: 99%

Experimental Study on PCDD/Fs Adsorption onto Nano-Graphite

Lin

et al. 2016

Aerosol Air Qual. Res.

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“…The present paper examines some potential technologies that 28 can be used to efficiently treat alkaline effluents containing As, Cr, 29 Cu, PCP and DF in order to remove these contaminants. 30 The most common techniques for the treatment of wastewater 31 contaminated with metals are precipitation, coagulation, ion 32 exchange and electrodeposition. For organic contaminants such 33 as pentachlorophenol (PCP) and polychlorinated dioxins and 34 furans (DF), the most common methods are adsorption onto 35 various materials (e.g., activated carbon, chitosan), filtration, 36 reverse osmosis and degradation by electrochemical treatment.…”

Section: Introductionmentioning

confidence: 99%

Treatment of contaminated soil leachate by precipitation, adsorption and ion exchange

Reynier

Coudert

Blais

et al. 2015

Journal of Environmental Chemical Engineering

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“…Bir arada ya da ayrı ayrı gerçekleşebilecek olan bu iki mekanizma sonucunda oluşan ilave oluşumlara ilişkin olarak atık yakma tesisleri üzerinde kurulu bulunan soğutma ve APCD ekipmanları için ayrı ayrı veya bir arada değerlendirmeler sunan bazı çalışmalar mevcuttur. Sözü edilen APCD ekipmanları için yapılan çalışmalar; boiler ve economizer gibi soğutma araçları [13,14], ıslak yıkayıcılar [15], aktif karbon enjeksiyonu sonrası üniteler [16], bez filtreler [17], aktif karbon yatakları (AC) [18] ve elektrostatik çöktürücüler (ESP) [10] şeklinde örneklendirilebilir. Bununla birlikte sistem üzerinde kurulu bulunan APCD ekipmanlarının her hangi bir "memory effect" etkisinin görülmediğini belirten Tejima vd.…”

Section: Introductionunclassified

Tehli̇keli̇ Atik Yakma Tesi̇sleri̇ni̇n Duruş Peri̇yodunda Gaz Akişi PCDD/F Emi̇syonlari: İzaydaş İçi̇n Bi̇r Araştirma

Korucu¹

2017

deufmd

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Özet: Bu çalışmada, Türkiye'nin ilk tehlikeli atık yakma tesisi olan İZAYDAŞ'ın bir duruş periyodundaki PCDD/Fs emisyonları incelenmiştir. Bu amaçla, tesisin bir duruş periyodunun 3 farklı sıcaklık rejimi için atık gaz akımından alınan numuneler gaz ve partikül faz konsantrasyonları için ayrı ayrı analiz edilmiştir. Örneklemeler, her bir sıcaklık rejimi için boiler çıkışı, elektrostatik filtre çıkışı, yıkayıcı çıkışı ve aktif karbon ünitesi çıkışı olmak üzere 4 farklı noktada gerçekleştirilmiştir. Çalışmada elde edilen bulgular, duruş periyodundaki emisyon davranışlarının yalnızca normal işletim periyodu değil işletmeye alma periyotlarındaki davranışlardan da önemli oranda farklı olabildiğini işaret etmektedir. Özetle, tesisin farklı işletim koşullarında farklı yönetim stratejileri uygulamak yöneticiler için bir zorunluluk olarak görünmektedir. PCDD/F Emissions of Gas Stream at Shutdown Period of HazardousWaste Incinerators: A Case Study for IZAYDAS Keywords Waste Incineration, Dioxins, Shutdown Period, "Memory Effect"Abstract: In this study, it was investigated that PCDD/Fs emissions of a shutdown period of the IZAYDAŞ which is the first hazardous waste incinerator of Turkey. For this purpose, the samples of the waste gas stream obtained in three different temperatures of a shutdown period of the facility were analyzed for the gas and the particulate phase concentrations separately. Samplings were obtained from four different points like boiler outlet, electrostatic filter outlet, scrubber outlet, and activated carbon bed outlet, for every temperature regimes. The findings indicated that the emission characteristics of the shutdown periods of the facility could be different from not only the characteristics of the normal operations but also the startup periods of the same facility. In conclusion, to perform different management strategies for different operation conditions of the facility seems like an obligation for the managers.

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Partitioning and removal of dioxin-like congeners in flue gases treated with activated carbon adsorption

Cited by 64 publications

References 11 publications

Experimental Study on PCDD/Fs Adsorption onto Nano-Graphite

Experimental Study on PCDD/Fs Adsorption onto Nano-Graphite

Treatment of contaminated soil leachate by precipitation, adsorption and ion exchange

Tehli̇keli̇ Atik Yakma Tesi̇sleri̇ni̇n Duruş Peri̇yodunda Gaz Akişi PCDD/F Emi̇syonlari: İzaydaş İçi̇n Bi̇r Araştirma

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