TY - JOUR
T1 - Pollution emission characteristics, distribution of heavy metals, and particle morphologies in a hazardous waste incinerator processing phenolic waste
AU - Wang, Chen
AU - Shao, Ningning
AU - Xu, Jiyun
AU - Zhang, Zuotai
AU - CAI, Zongwei
N1 - Funding Information:
We gratefully acknowledge supports from National Key R&D Program of China ( 2018YFC1902904 ) and the National Natural Science Foundation of China ( 51772141 ). This work was also supported financially by Shenzhen Science and Technology Innovation Committee ( KQJSCX2018032215150778 , JCYJ20170412154335393 ) and Shenzhen Peacock Plan ( KQTD20160226195840229 ). Additional support was Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme 2018 .
Funding Information:
We gratefully acknowledge supports from National Key R&D Program of China (2018YFC1902904) and the National Natural Science Foundation of China (51772141). This work was also supported financially by Shenzhen Science and Technology Innovation Committee (KQJSCX2018032215150778, JCYJ20170412154335393) and Shenzhen Peacock Plan (KQTD20160226195840229). Additional support was Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme 2018.
PY - 2020/4/15
Y1 - 2020/4/15
N2 - Secondary pollution emitted from hazardous waste incinerators (HWIs) can pose potential risks to the surrounding populations and environment. An investigation was conducted on pollutant emission status in a HWI combusting homogenized phenolic waste, woodchips, and electroplating sludge during the sampling period. Morphologies and elemental compositions of particles in flue gas and indoor air of the incinerator were characterized by TEM-EDS. Eight types of single particles were classified, as organic, soot, K-rich, S-rich, Na-rich, Fe-rich, mineral and fly ash particles. In the indoor air near the fly ash collector, organic and S-rich particles were the two most observed particles, taking 56 % and 30 %, respectively. While near the bottom ash collector, Fe-rich particles took approximately 30 %. Besides, the partitioning behavior of heavy metals in the incinerating process were investigated. Hg, Cd and Pb were mainly enriched in fly ash through evaporation, condensation, and adsorption; while Cr, Cu, Mn, and Ni were mostly remained in the bottom ash due to their low volatilities. This study provides information for regional air pollution source apportionment, but also helps understand the partitioning behavior of heavy metals for the secondary pollution control. Meanwhile, the visualized micro-compositions of indoor particles pave a way for occupational exposure risk assessment.
AB - Secondary pollution emitted from hazardous waste incinerators (HWIs) can pose potential risks to the surrounding populations and environment. An investigation was conducted on pollutant emission status in a HWI combusting homogenized phenolic waste, woodchips, and electroplating sludge during the sampling period. Morphologies and elemental compositions of particles in flue gas and indoor air of the incinerator were characterized by TEM-EDS. Eight types of single particles were classified, as organic, soot, K-rich, S-rich, Na-rich, Fe-rich, mineral and fly ash particles. In the indoor air near the fly ash collector, organic and S-rich particles were the two most observed particles, taking 56 % and 30 %, respectively. While near the bottom ash collector, Fe-rich particles took approximately 30 %. Besides, the partitioning behavior of heavy metals in the incinerating process were investigated. Hg, Cd and Pb were mainly enriched in fly ash through evaporation, condensation, and adsorption; while Cr, Cu, Mn, and Ni were mostly remained in the bottom ash due to their low volatilities. This study provides information for regional air pollution source apportionment, but also helps understand the partitioning behavior of heavy metals for the secondary pollution control. Meanwhile, the visualized micro-compositions of indoor particles pave a way for occupational exposure risk assessment.
KW - Hazardous waste incineration
KW - Partitioning behavior
KW - Single particles
KW - TEM-EDS
UR - http://www.scopus.com/inward/record.url?scp=85080129066&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2019.121751
DO - 10.1016/j.jhazmat.2019.121751
M3 - Journal article
C2 - 31796353
AN - SCOPUS:85080129066
SN - 0304-3894
VL - 388
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
M1 - 121751
ER -
