Opportunities for reducing mercury emissions in the cement industry

Kogut, Krzysztof; Górecki, J.; Burmistrz, Piotr

doi:10.1016/j.jclepro.2021.126053

Cited by 29 publications

(10 citation statements)

References 14 publications

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“…Besides, the future emissions of CO 2 and air pollutants during 2020–2060 are reduced, mostly driven by the decrease in clinker/cement production. The continuous popularization of ULETs (like SCR and desulphurization) is conducive to the further emission reductions of NOx and SO 2 , along with collaborative reduction of Hg emission . Optimizing CS and increasing EI can further reduce SO 2 and Hg emissions.…”

Section: Resultsmentioning

confidence: 99%

“…The sulfur absorption rate of NSP was assumed to have reached median values of the range mentioned in Section 2.2. Kogut et al 47 proposed that atmospheric Hg EFs would be reduced by 64.7% when equipped with SCR. Finally, NRDC 44 mainly discussed feedstock substitution and carbon capture, utilization, and storage (CCUS), and IEA pointed out that CCUS and other emerging technologies would be increasingly used to ensure that CO 2 emission by 2060 is 30 Mt.…”

Section: Emission Factorsmentioning

confidence: 99%

“…The continuous popularization of ULETs (like SCR and desulphurization) is conducive to the further emission reductions of NOx and SO 2 , along with collaborative reduction of Hg emission. 47 Optimizing CS and increasing EI can further reduce SO 2 and Hg emissions. Moreover, the reinforced application and expansion of various advanced lowcarbon technologies (such as CCUS, hydrogen energy, etc.)…”

Section: Validationmentioning

confidence: 99%

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Heterogeneous Variations on Historical and Future Trends of CO₂ and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Guo

Bai

Liu

et al. 2022

Environ. Sci. Technol.

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Cement production is a major contributor to carbon dioxide (CO2) and multiple hazardous air pollutant (HAP) emissions, threatening climate mitigation and urban/regional air quality improvement. In this study, we established a comprehensive emission inventory by coupling the unit-based bottom-up and mass balance methods, revealing that emissions of most HAPs have been remarkably controlled. However, an increasing 6.0% of atmospheric mercury emissions, as well as 14.1 and 23.7% of fuel-related and process-related CO2 emission growth were witnessed unexpectedly. Industrial adjustment policies have imposed a great impact on the spatiotemporal changes in emission characteristics. Monthly emissions of CO2 and multiple HAPs decreased from December to February due to the “staggered peak production,” especially in northern China after implementing the intensified action plan for air pollution control in winter. Upgrading environmental technologies and adjusting capacity structures are identified as dominant driving forces for reducing HAP emissions. Besides, energy intensity improvement can help offset some of the impact caused by the increase in clinker/cement production. Furthermore, scenario analysis results show that ultra-low emission and low-carbon technology transformation constitute the keys to achieve the synergic reduction of CO2 and multiple HAP emissions in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Emission Factorsmentioning

confidence: 99%

Section: Validationmentioning

confidence: 99%

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Heterogeneous Variations on Historical and Future Trends of CO₂ and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Guo

Bai

Liu

et al. 2022

Environ. Sci. Technol.

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“…Hg is vaporized at high temperature during clinker cement production, a long and complicated procedure called the “precalciner process” that includes heating and decomposing raw material and roasting with coal in a rotary kiln system (Wang et al, 2016 ). Kogut et al ( 2021 ) reiterated the importance of reducing mercury vapors from cement production. GEM removal from the cement process can be done through (i) understanding the Hg distribution in each process step and (ii) using absorption methods such as activated charcoal, selective catalytic reduction (SCR), and selective noncatalytic reduction (SNCR).…”

Section: Resultsmentioning

confidence: 99%

Health risk assessment of gaseous elemental mercury (GEM) in Mexico City

Schiavo

Mortón-Bermea

Salgado-Martínez

et al. 2022

Environ Monit Assess

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Emissions of gaseous elemental mercury (GEM or Hg 0 ) from different sources in urban areas are important subjects for environmental investigations. In this study, atmospheric Hg measurements were conducted to investigate air pollution in the urban environment by carrying out several mobile surveys in Mexico City. This work presents atmospheric concentrations of GEM in terms of diurnal variation trends and comparisons with criteria for pollutant concentrations such as CO, SO 2 , NO 2 , PM 2.5 , and PM 10 . The concentration of GEM was measured during the pre-rainy period by using a high-resolution active air sampler, the Lumex RA 915 M mercury analyzer. In comparison with those for other cities worldwide, the GEM concentrations were similar or slightly elevated, and they ranged from 0.20 to 30.23 ng m −3 . However, the GEM concentration was significantly lower than those in contaminated areas, such as fluorescent lamp factory locations and gold mining zones. The GEM concentrations recorded in Mexico City did not exceed the WHO atmospheric limit of 200 ng m −3 . We performed statistical correlation analysis which suggests equivalent sources between Hg and other atmospheric pollutants, mainly NO 2 and SO 2 , emitted from urban combustion and industrial plants. The atmospheric Hg emissions are basically controlled by sunlight radiation, as well as having a direct relationship with meteorological parameters. The area of the city studied herein is characterized by high traffic density, cement production, and municipal solid waste (MSW) treatment, which constantly release GEM into the atmosphere. In this study, we included the simulation with the HYSPLIT dispersion model from three potential areas of GEM release. Emissions from industrial corridors and volcanic plumes localized outside the urban area contribute to the pollution of Mexico City and mainly affect the northern area during specific periods and climate conditions. Using the USEPA model, we assessed the human health risk resulting from exposure to inhaled GEM among residents of Mexico City. The results of the health risk assessment indicated no significant noncarcinogenic risk (hazard quotient (HQ) < 1) or consequent adverse effects for children and adults living in the sampling area over the study period. GEM emissions inventory data is necessary to improve our knowledge about the Hg contribution and effect in urban megacity areas with the objective to develop public safe policy and implementing the Minamata Convention. Supplementary information The online version contains supplementary material available at 10.1007/s10661-022-10107-7.

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“…2020). The share of the cement industry in global anthropogenic mercury emissions increased from approximately 5.6% in 2005 to approximately 10.5% in 2015 (Krzysztof Kogut et al, 2021). As a major cement producer, China has a large number of cement plants, and the cement output is huge, almost accounting for more than half of the global output.…”

Section: Introductionmentioning

confidence: 99%

Transfer and transformation of mercury in cement production

Yuan

Wang

Yang

et al. 2022

Preprint

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In the previous study, the Ontario method was used to sample and analyze some production links of cement plants, but only the morphological distribution of mercury before and after the dust collector was obtained. Few researches have been carried out to analyse and test the whole process of cement plant production. In this study, based on the method of combining theoretical analysis with field sampling, the mercury levels in solid samples and gas samples was analyzed and then compared with the results obtained from theoretical analysis. In this work, the results of the theoretical analysis and the sampling can be derived towards a consistent trend, so the theoretical analysis results have a certain credibility. Then the theoretical analysis of each link in the cement production process was carried out to obtain the morphological distribution of mercury in the main link, and then the thermodynamic analysis was carried out to obtain the form distribution, migration and transformation of mercury in each link of cement production. It provides a theoretical basis for local mercury pollution control, later mercury emission reduction, coordinated disposal and management.

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Opportunities for reducing mercury emissions in the cement industry

Cited by 29 publications

References 14 publications

Heterogeneous Variations on Historical and Future Trends of CO₂ and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Heterogeneous Variations on Historical and Future Trends of CO₂ and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Health risk assessment of gaseous elemental mercury (GEM) in Mexico City

Transfer and transformation of mercury in cement production

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Opportunities for reducing mercury emissions in the cement industry

Cited by 29 publications

References 14 publications

Heterogeneous Variations on Historical and Future Trends of CO2 and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Heterogeneous Variations on Historical and Future Trends of CO2 and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Health risk assessment of gaseous elemental mercury (GEM) in Mexico City

Transfer and transformation of mercury in cement production

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Product

Resources

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Heterogeneous Variations on Historical and Future Trends of CO₂ and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections

Heterogeneous Variations on Historical and Future Trends of CO₂ and Multiple Air Pollutants from the Cement Production Process in China: Emission Inventory, Spatial–Temporal Characteristics, and Scenario Projections