Emission characteristics of mercury from waste combustion facilities

Kyu Shik Park, Ha Na Jang, Ju Hyoung Lee, Jeong Hun Kim, Sang Hyeob Lee, Sung Jin Cho, Yong Chil Seo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

sampling and analysis of mercury at inlet and outlet of air pollution control devices (APCDs) have been conducted to provide information on mercury speciation, mass distribution and removal. Two municipal waste incinerators and two industrial waste incinerators, each with dry and wet types of APCDs, and two cement kilns were selected to measure mercury concentrations mainly at stacks, as well as selected locations between the APCDs. Gaseous sampling was implemented in accordance with the Ontario Hydro (OH) method to determine whether mercury forms were elemental or oxidized. Mercury removal efficiencies were relatively higher with more than 70% due to tight APCDs configuration. Oxidized mercury was dominant in municipal solid waste incinerators. Due to high collection of particles by filters, higher mercury removal efficiency was observed at the incinerator with dry type APCDs. Such behavior was confirmed by the results of mass distribution of mercury, which showed most of mercury in fly ash in case of the incinerator with dry type APCDs. By passing through the APCDs, the portion of the oxidized form of mercury seemed to increase in most cases because of increased contact time with the flue gas and fly ash and/or enhancing the mercury oxidation rate by acidic gas components. The mercury removal efficiencies in the industrial waste incinerators in this investigation were lower than those in the municipal waste incinerators due to less tight APCDs configuration, and because the speciation and fate of mercury between two types of APCDs (wet and dry) were quite different. In wet type APCDs, the oxidized mercury was removed by absorption to water at the scrubber since Hg2+ is soluble in water. For cement kilns, more elemental mercury was formed and emitted from kilns as shown only 24-31% of oxidized mercury at the inlet of APCDs, which is opposite behavior with the previous results from incinerators. The higher temperature of kiln furnace and lower concentrations of oxidizing components such as chlorine and oxygen than that of incinerators might have caused it. Our study revealed mercury emissions and speciation depend on the factors as Hg concentration in the industrial wastes, type of APCDs, flue gas composition and temperature. Mass balance of mercury in the process was attempted to determine from the emission data and analysis results of mercury at all the in- and out-streams such as waste feed and effluents from APCDs. An approximate Hg mass balance was obtained based on various samples collected, however a series of long term and comprehensive study would be required to evaluate the reliable Hg distribution at waste incinerators.

Original languageEnglish
Title of host publicationA and WM, Twenty-fifth Annual International Conference on Incineration and Thermal Treatment Technologies, IT3.
Pages279-291
Number of pages13
Publication statusPublished - 2006 Dec 1
EventA and WM, 25th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3. - Savannah, GA, United States
Duration: 2006 May 152006 May 19

Publication series

NameA and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3
Volume1

Other

OtherA and WM, 25th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3.
CountryUnited States
CitySavannah, GA
Period06/5/1506/5/19

Fingerprint

Air pollution control
Refuse incinerators
Kilns
Industrial wastes
Fly ash
Flue gases
Cements
Sampling
Scrubbers
Municipal solid waste
Chlorine
Water
Effluents
Furnaces

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Park, K. S., Jang, H. N., Lee, J. H., Kim, J. H., Lee, S. H., Cho, S. J., & Seo, Y. C. (2006). Emission characteristics of mercury from waste combustion facilities. In A and WM, Twenty-fifth Annual International Conference on Incineration and Thermal Treatment Technologies, IT3. (pp. 279-291). (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3; Vol. 1).
Park, Kyu Shik ; Jang, Ha Na ; Lee, Ju Hyoung ; Kim, Jeong Hun ; Lee, Sang Hyeob ; Cho, Sung Jin ; Seo, Yong Chil. / Emission characteristics of mercury from waste combustion facilities. A and WM, Twenty-fifth Annual International Conference on Incineration and Thermal Treatment Technologies, IT3.. 2006. pp. 279-291 (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3).
@inproceedings{b6c8cf35976e4c17874486cf47c8bd1b,
title = "Emission characteristics of mercury from waste combustion facilities",
abstract = "sampling and analysis of mercury at inlet and outlet of air pollution control devices (APCDs) have been conducted to provide information on mercury speciation, mass distribution and removal. Two municipal waste incinerators and two industrial waste incinerators, each with dry and wet types of APCDs, and two cement kilns were selected to measure mercury concentrations mainly at stacks, as well as selected locations between the APCDs. Gaseous sampling was implemented in accordance with the Ontario Hydro (OH) method to determine whether mercury forms were elemental or oxidized. Mercury removal efficiencies were relatively higher with more than 70{\%} due to tight APCDs configuration. Oxidized mercury was dominant in municipal solid waste incinerators. Due to high collection of particles by filters, higher mercury removal efficiency was observed at the incinerator with dry type APCDs. Such behavior was confirmed by the results of mass distribution of mercury, which showed most of mercury in fly ash in case of the incinerator with dry type APCDs. By passing through the APCDs, the portion of the oxidized form of mercury seemed to increase in most cases because of increased contact time with the flue gas and fly ash and/or enhancing the mercury oxidation rate by acidic gas components. The mercury removal efficiencies in the industrial waste incinerators in this investigation were lower than those in the municipal waste incinerators due to less tight APCDs configuration, and because the speciation and fate of mercury between two types of APCDs (wet and dry) were quite different. In wet type APCDs, the oxidized mercury was removed by absorption to water at the scrubber since Hg2+ is soluble in water. For cement kilns, more elemental mercury was formed and emitted from kilns as shown only 24-31{\%} of oxidized mercury at the inlet of APCDs, which is opposite behavior with the previous results from incinerators. The higher temperature of kiln furnace and lower concentrations of oxidizing components such as chlorine and oxygen than that of incinerators might have caused it. Our study revealed mercury emissions and speciation depend on the factors as Hg concentration in the industrial wastes, type of APCDs, flue gas composition and temperature. Mass balance of mercury in the process was attempted to determine from the emission data and analysis results of mercury at all the in- and out-streams such as waste feed and effluents from APCDs. An approximate Hg mass balance was obtained based on various samples collected, however a series of long term and comprehensive study would be required to evaluate the reliable Hg distribution at waste incinerators.",
author = "Park, {Kyu Shik} and Jang, {Ha Na} and Lee, {Ju Hyoung} and Kim, {Jeong Hun} and Lee, {Sang Hyeob} and Cho, {Sung Jin} and Seo, {Yong Chil}",
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Park, KS, Jang, HN, Lee, JH, Kim, JH, Lee, SH, Cho, SJ & Seo, YC 2006, Emission characteristics of mercury from waste combustion facilities. in A and WM, Twenty-fifth Annual International Conference on Incineration and Thermal Treatment Technologies, IT3.. A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3, vol. 1, pp. 279-291, A and WM, 25th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3., Savannah, GA, United States, 06/5/15.

Emission characteristics of mercury from waste combustion facilities. / Park, Kyu Shik; Jang, Ha Na; Lee, Ju Hyoung; Kim, Jeong Hun; Lee, Sang Hyeob; Cho, Sung Jin; Seo, Yong Chil.

A and WM, Twenty-fifth Annual International Conference on Incineration and Thermal Treatment Technologies, IT3.. 2006. p. 279-291 (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Emission characteristics of mercury from waste combustion facilities

AU - Park, Kyu Shik

AU - Jang, Ha Na

AU - Lee, Ju Hyoung

AU - Kim, Jeong Hun

AU - Lee, Sang Hyeob

AU - Cho, Sung Jin

AU - Seo, Yong Chil

PY - 2006/12/1

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N2 - sampling and analysis of mercury at inlet and outlet of air pollution control devices (APCDs) have been conducted to provide information on mercury speciation, mass distribution and removal. Two municipal waste incinerators and two industrial waste incinerators, each with dry and wet types of APCDs, and two cement kilns were selected to measure mercury concentrations mainly at stacks, as well as selected locations between the APCDs. Gaseous sampling was implemented in accordance with the Ontario Hydro (OH) method to determine whether mercury forms were elemental or oxidized. Mercury removal efficiencies were relatively higher with more than 70% due to tight APCDs configuration. Oxidized mercury was dominant in municipal solid waste incinerators. Due to high collection of particles by filters, higher mercury removal efficiency was observed at the incinerator with dry type APCDs. Such behavior was confirmed by the results of mass distribution of mercury, which showed most of mercury in fly ash in case of the incinerator with dry type APCDs. By passing through the APCDs, the portion of the oxidized form of mercury seemed to increase in most cases because of increased contact time with the flue gas and fly ash and/or enhancing the mercury oxidation rate by acidic gas components. The mercury removal efficiencies in the industrial waste incinerators in this investigation were lower than those in the municipal waste incinerators due to less tight APCDs configuration, and because the speciation and fate of mercury between two types of APCDs (wet and dry) were quite different. In wet type APCDs, the oxidized mercury was removed by absorption to water at the scrubber since Hg2+ is soluble in water. For cement kilns, more elemental mercury was formed and emitted from kilns as shown only 24-31% of oxidized mercury at the inlet of APCDs, which is opposite behavior with the previous results from incinerators. The higher temperature of kiln furnace and lower concentrations of oxidizing components such as chlorine and oxygen than that of incinerators might have caused it. Our study revealed mercury emissions and speciation depend on the factors as Hg concentration in the industrial wastes, type of APCDs, flue gas composition and temperature. Mass balance of mercury in the process was attempted to determine from the emission data and analysis results of mercury at all the in- and out-streams such as waste feed and effluents from APCDs. An approximate Hg mass balance was obtained based on various samples collected, however a series of long term and comprehensive study would be required to evaluate the reliable Hg distribution at waste incinerators.

AB - sampling and analysis of mercury at inlet and outlet of air pollution control devices (APCDs) have been conducted to provide information on mercury speciation, mass distribution and removal. Two municipal waste incinerators and two industrial waste incinerators, each with dry and wet types of APCDs, and two cement kilns were selected to measure mercury concentrations mainly at stacks, as well as selected locations between the APCDs. Gaseous sampling was implemented in accordance with the Ontario Hydro (OH) method to determine whether mercury forms were elemental or oxidized. Mercury removal efficiencies were relatively higher with more than 70% due to tight APCDs configuration. Oxidized mercury was dominant in municipal solid waste incinerators. Due to high collection of particles by filters, higher mercury removal efficiency was observed at the incinerator with dry type APCDs. Such behavior was confirmed by the results of mass distribution of mercury, which showed most of mercury in fly ash in case of the incinerator with dry type APCDs. By passing through the APCDs, the portion of the oxidized form of mercury seemed to increase in most cases because of increased contact time with the flue gas and fly ash and/or enhancing the mercury oxidation rate by acidic gas components. The mercury removal efficiencies in the industrial waste incinerators in this investigation were lower than those in the municipal waste incinerators due to less tight APCDs configuration, and because the speciation and fate of mercury between two types of APCDs (wet and dry) were quite different. In wet type APCDs, the oxidized mercury was removed by absorption to water at the scrubber since Hg2+ is soluble in water. For cement kilns, more elemental mercury was formed and emitted from kilns as shown only 24-31% of oxidized mercury at the inlet of APCDs, which is opposite behavior with the previous results from incinerators. The higher temperature of kiln furnace and lower concentrations of oxidizing components such as chlorine and oxygen than that of incinerators might have caused it. Our study revealed mercury emissions and speciation depend on the factors as Hg concentration in the industrial wastes, type of APCDs, flue gas composition and temperature. Mass balance of mercury in the process was attempted to determine from the emission data and analysis results of mercury at all the in- and out-streams such as waste feed and effluents from APCDs. An approximate Hg mass balance was obtained based on various samples collected, however a series of long term and comprehensive study would be required to evaluate the reliable Hg distribution at waste incinerators.

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Park KS, Jang HN, Lee JH, Kim JH, Lee SH, Cho SJ et al. Emission characteristics of mercury from waste combustion facilities. In A and WM, Twenty-fifth Annual International Conference on Incineration and Thermal Treatment Technologies, IT3.. 2006. p. 279-291. (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3).