Removal efficiencies of PCDDs/PCDFs by air pollution control devices in municipal solid waste incinerators.
Removal efficiencies of polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans (PCDDs/PCDFs) by air pollution control devices (APCDs) in the commercial-scale municipal solid waste (MSW) incinerators with a capacity of above 200 ton/day were evaluated. The removal efficiencies of PCDDs/PCDFs were up to 95% when the activated carbon (AC) was injected in front of electrostatic precipitator (EP). Spray dryer absorber/bag filter (SDA/BF) had high removal efficiency (99%)) of PCDDs/PCDFs when a mixture of lime and AC was sprayed into the SDA. When the AC was not added in scrubbing solution, the whole congeners of PCDDs/PCDFs were enriched in the wet scrubber (WS) with negative removal efficiencies of -25% to -5731%. Discharge of PCDDs/PCDFs was decreased with increasing the proportions of AC added in scrubbing solution. Selective catalytic reduction (SCR) system had the removal efficiencies of up to 93% during the test operation.
Kim
S C
SC
National Institute of Environmental Research, NIER, Eunpyung-Ku, Seoul, South Korea.
Jeon
S H
SH
Jung
I R
IR
Kim
K H
KH
Kwon
M H
MH
Kim
J H
JH
Yi
J H
JH
Kim
S J
SJ
You
J C
JC
Jung
D H
DH
D000397:Air Pollution / Q000517:prevention & control*; D001572:Benzofurans / Q000032:analysis*; D002244:Carbon / Q000737:chemistry; D000072338:Dibenzofurans, Polychlorinated; D004784:Environmental Monitoring; D005374:Filtration; D017745:Incineration; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000032:analysis*; D012037:Refuse Disposal / Q000295:instrumentation* / Q000379:methods; D012989:Soil Pollutants / Q000032:analysis*; D055672:Static Electricity
D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants; D002244:Carbon