Emission levels and phase distributions of PCDD/Fs in a full-scale municipal solid waste incinerator: The impact of wet scrubber system

Wang, Pengju; Yan, Feng; Cai, Jianjun; Xie, Feng; Shen, Xuehua; Wei, Xuankun; Yang, Guodong; Zhong, Rigang; Huang, Junbing; Li, Zhongzheng; Zhang, Zuotai

doi:10.1016/j.jclepro.2022.130468

Cited by 24 publications

(4 citation statements)

References 46 publications

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“…It relies on pro le data obtained from other incinerators that closely resemble a target MSWI at speci c time intervals. Such representative data are typically available in scienti c literature, as numerous studies have investigated various types of incinerators (Oh et al 1999;Takaoka et al 2003;Chang et al 2004;Lin et al 2020;Wang et al 2022).…”

Section: Estimating Pcdd/fs Relative Pro Lementioning

confidence: 99%

Assessment of past dioxin emissions from waste incineration plants based on archive studies and process modeling: a new methodological tool

Zhang,

de Aragao,

Moll-François

et al. 2024

Preprint

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Pollution from past industrial activities can remain unnoticed for years or even decades because the pollutant has only recently gained attention or identified by measurements. Modeling the emission history of pollution is essential for estimating population exposure and apportioning potential liability among stakeholders. This paper proposes a novel approach for reconstructing the history of polychlorinated dibenzo-p-dioxin (PCDD) and polychlorinated dibenzofuran (PCDF) pollution from municipal solid waste incinerators (MSWIs) with unknown past emissions. The proposed methodology relies on the search for technical and operational data on the pollution source in archives, the extraction of representative data from the scientific literature, and the use of kinetic models of the formation and decomposition of PCDD/Fs within combustion chambers. This new methodological tool allows to estimate the MSWI’s stack emission and relative profile of seventeen PCDD/F congeners over time. The approach was validated through a case study of a MSWI in Switzerland. The modeled congener profile achieved a Pearson correlation coefficient of 0.98 with measurements in fly ash washwater. Additionally, the simulated soil quantity (1,283–1,698 gTEQWHO−2022 or 1,115-1,419 gTEQ WHO−2005) fell within the same order of magnitude as the estimated quantity from measurements (425 gTEQ WHO−2022 or 371 gTEQ WHO−2005).

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Section: Estimating Pcdd/fs Relative Pro Lementioning

confidence: 99%

Assessment of past dioxin emissions from waste incineration plants based on archive studies and process modeling: a new methodological tool

Zhang,

de Aragao,

Moll-François

et al. 2024

Preprint

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“…By increasing the chlorine content in feedstock, the formation mechanism of PCDD/Fs in electrostatic ash changed from precursor synthesis to de novo synthesis. The higher vapor pressure of PCDF congeners could provide a better desorption capacity than that provided by the vapor pressure of PCDD congeners with the same chlorination substituted number (Wang et al, 2022). Therefore, more PCDFs could be released into electrostatic ash in the electrostatic precipitation process.…”

Section: Distribution Characteristics Of Pcdd/fsmentioning

confidence: 99%

Effects of increasing chlorine concentration in feedstock on the emission and distribution characteristic of dioxins in circular fluidized bed boiler

Cui

Liu

et al. 2022

Environ Sci Pollut Res

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Field studies were conducted to study the emission and distribution characteristics of dioxins by elevating the chloring concentration in feedstock in a 600MW circular uidized bed (CFB) boiler. The concentration and total equivalent quantity of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in all ue gas, electrostatic ash, cloth bag ash and boiler ash samples under blank condition (i.e., feedstock was normal coal) and chlorine labelling condition (i.e., feedstock mixed with coal and chlorine-containing labelling agent) were analyzed. Results illustrated that the concentration of PCDD/Fs in all gaseous and ash samples increased with the addition of chlorine in feedstock, with the largest and least increment in dioxin concentration observed in electrostatic ash and ue gas. PCDDs were the predominate congeners in ue gas, accounted for 50.1-60.4%of the total PCDD/Fs concentration under chlorine labelling and blank conditions, while PCDD/Fs distribution changed from PCDD-to PCDF-predominate by increasing chlorine content in feedstock under all eld test conditions: 46.6-92.9%, 34.0-76.1%, and 47.0-53.1% of PCDFs were distributed in electrostatic ash, cloth bag ash, and boiler ash, respectively. Highly chlorinated PCDD/F congeners such as O 8 CDD/F and 1,2,3,4,6,7,8-H 7 CDD/F were the primary contributors to dioxins concentration in ue gas and boiler ash samples, whereas low-chlorinated 2,3,7,8-T 4 CDF and 1,2,3,7,8-P 5 CDF congeners became critically dominating in electrostatic and cloth bag ash.

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“…Incineration is an effective waste disposal method that is capable of reducing significant weight and has no harmful effects on humans and the environment. It can destroy hazardous components, reduce waste volume by 5-15% to ash, and produce energy [4] [5]. The burning process in solid waste processing incinerators, both general and medical, at a temperature of 800 -1,000°C to reduce the volume of combustible waste, which can no longer be recycled and can kill viruses, bacteria and toxic chemicals [6] [7].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Technology Incinerator For Solid Waste Processing Using an Evaporative Cooling System

Leksono Edy,

Hendrik,

Fikri

et al. 2024

E3S Web Conf.

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An incinerator is a combustion device that burns waste at high temperatures. The incinerator in this research uses hybrid technology, which uses an evaporative cooling system to reduce environmental pollution from combustion residue. Analysis of incinerator performance based on indicators: efficiency of combustion use, level of residual combustion waste and B3 waste levels, and levels of air emissions from the combustion process. Emission measurements include particulates, CO2 gas, CO gas, heavy metals, NO2, SO2, HCl, HF and total hydrocarbons. The method used as a result of the development of this incinerator is a field experiment, namely a field trial using the process of burning B3 solid waste and calculating parameters, which are indicators for measuring the effectiveness of the working system of the incinerator development. Hasil uji lapangan insinerator dengan system pendingan evaporative diperoleh bahwa efisiensi pembakaran pada kapasitas 50 kg/jam selama 3 kali proses uji coba pengolahan limbah di Universitas Negeri Malang yaitu pada tanggal 18 Sebtember, 19 Sebtember dan 20 Sebtember 20 23 secara berturut sebesar 95,4%, 9 1,2% dan 98,1%. Efisiensi terbaik didapat pad a tanggal 20 Sebtember 2023 sebesar 98,1 % dengan massa limbah 75 kg, massa abu 1kg, suhu operasi 310 - 6 10°C dan pengolahan selama 4,2 jam

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Emission levels and phase distributions of PCDD/Fs in a full-scale municipal solid waste incinerator: The impact of wet scrubber system

Cited by 24 publications

References 46 publications

Assessment of past dioxin emissions from waste incineration plants based on archive studies and process modeling: a new methodological tool

Assessment of past dioxin emissions from waste incineration plants based on archive studies and process modeling: a new methodological tool

Effects of increasing chlorine concentration in feedstock on the emission and distribution characteristic of dioxins in circular fluidized bed boiler

Hybrid Technology Incinerator For Solid Waste Processing Using an Evaporative Cooling System

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