Abstract
This study emphasized on the removal performance of polychlorinated-ρ-dibenzodioxins and dibenzofurans (PCDD/Fs) and mercury by different activated carbon injection (ACI) rates from a full-scale (700 t/d) MSW incinerator. The result exhibited that the emission standard of PCDD/Fs and mercury could be met when the ACI rate reached 50 mg/Nm3 and 30 mg/Nm3, respectively. Lower chlorinated PCDD/Fs and PCDFs showed higher removal efficiencies compared with highly chlorinated PCDD/Fs and PCDDs, which could be attributed to the larger competitiveness of highly volatile congeners in AC adsorption than the lower volatile ones. AC turned out to have different adsorption selectivity for CP-routes PCDD/Fs congeners, among which 1379-TCDD was preferred to be absorbed while others exhibited little or poor selectivity for AC adsorption. The removal efficiency of PCDD/Fs was positively correlated with ACI rate at 99% confidence interval with a linear relationship (R2 = 0.98). Also, the outlet concentration of mercury decreased with the increase of ACI rate in a nearly linear function (R2 = 0.96). These results will be meaningful for the rational use of AC for pollutants control.
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This study was funded by the National Key Research and Development Program of China (2020YFC1910100).
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PW: formal analysis, data curation, writing—original draft; XL: conceptualization, investigation; SX: methodology, writing—review and editing; XL: supervision, resources; YM: formal analysis; WL: validation; JW: validation; JD: investigation.
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Wang, P., Lin, X., Xu, S. et al. Simultaneous removal of PCDD/Fs and mercury by activated carbon from a full-scale MSW incinerator in southeast China. Environ Sci Pollut Res 30, 2440–2449 (2023). https://doi.org/10.1007/s11356-022-22425-x
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DOI: https://doi.org/10.1007/s11356-022-22425-x