Effects of evaporation capacity on the formation and removal of PCDD/Fs in a full-scale municipal solid waste incinerator

Cai，Jianjun1,4; Zhong，Rigang2,3; Liu，Xiaojuan3; Liu，Qingcai2; Wu，Hao3; Yan，Feng1; Huang，Junbin3; Zhang，Zuotai1

2021-10-01

10.1016/j.psep.2021.08.004

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION   影响因子和分区

0957-5820

Municipal solid waste (MSW) classification has become a hot topic with the requirement of “zero waste city”; however, incinerators are designed unclassified currently. Therefore, it is difficult to keep around the rated value of evaporation capacity. Herein, we investigated the effects of evaporation capacity on the formation and removal of PCDD/Fs in a full-scale incinerator firstly. The formation of PCDD/Fs at the 110 % evaporation was lower than that of 100 % from the primary superheater to economizer, as high oxygen concentration. After flue gas flowed through the position of activated carbon injection, PCDD/F emissions at the 100 % evaporation were lower than that at the 110 % as the primary air volume at 110 % was 1.21 times that of 100 %. It had no significant effects on the PCDD/F emissions of the stack gas for an increase approximate 10 % of the evaporation capacity. Although the removal efficiencies of PCDD/F congeners varied in the four parts of the air pollution control devices (APCDs), while it was similar for the effects of APCDs on the removal efficiencies of PCDD/Fs between the two operating conditions. For the two different operating conditions, the removal efficiencies of congeners were kept at high levels (96.32–99.81 %) after flue gas flowed through APCDs and the removal efficiencies of the less-chlorinated congeners general were higher than those in the more-chlorinated congeners. And the removal efficiencies of PCDFs were much higher than PCDDs. These findings provide some new option for controlling PCDD/F emissions in a full-scale incinerator under the MSW classification.

Evaporation capacity Formation and removal mechanism Municipal solid waste incinerators PCDD/Fs

SCI ; EI

英语

第一 ; 通讯

WOS:000704336900002

20213310760971

Air pollution control ; Air pollution control equipment ; Efficiency ; Evaporation ; Flue gases ; Gas emissions ; Waste incineration

Air Pollution Sources:451.1 ; Air Pollution Control:451.2 ; Municipal and Industrial Wastes; Waste Treatment and Disposal:452 ; Industrial Wastes Treatment and Disposal:452.4 ; Chemical Operations:802.3 ; Production Engineering:913.1

ENVIRONMENT/ECOLOGY

2-s2.0-85112185652

Scopus

1.School of Environmental Science and Engineering,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,Southern University of Science and Technology,Shenzhen,518055,China
2.Engineering Research Center for Energy and Environment of Chongqing,College of Materials Science and Engineering,Chongqing University,Chongqing,400044,China
3.Shenzhen Energy Environment,Co.,LTD,Shenzhen,518055,China
4.School of Architecture and Traffic,Guilin University of Electronic Technology,Guilin,541004,China

Cai，Jianjun,Zhong，Rigang,Liu，Xiaojuan,et al. Effects of evaporation capacity on the formation and removal of PCDD/Fs in a full-scale municipal solid waste incinerator[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2021,154:18-31.

Cai，Jianjun.,Zhong，Rigang.,Liu，Xiaojuan.,Liu，Qingcai.,Wu，Hao.,...&Zhang，Zuotai.(2021).Effects of evaporation capacity on the formation and removal of PCDD/Fs in a full-scale municipal solid waste incinerator.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,154,18-31.

Cai，Jianjun,et al."Effects of evaporation capacity on the formation and removal of PCDD/Fs in a full-scale municipal solid waste incinerator".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 154(2021):18-31.