PMID- 32380379
OWN - NLM
STAT- MEDLINE
DCOM- 20200603
LR  - 20200603
IS  - 1879-2456 (Electronic)
IS  - 0956-053X (Linking)
VI  - 109
DP  - 2020 May 15
TI  - Fate of heavy metals during co-disposal of municipal solid waste incineration fly 
      ash and sewage sludge by hydrothermal coupling pyrolysis process.
PG  - 28-37
LID - S0956-053X(20)30216-6 [pii]
LID - 10.1016/j.wasman.2020.04.048 [doi]
AB  - In this work, the hydrothermal coupling pyrolysis (HTP) method was used to treat 
      municipal solid waste incineration fly ash (IFA) and municipal sewage sludge 
      (MSS). The regulation of migration mechanism of heavy metals (HMs), which 
      included Cr, Ni, Cu, Zn, Cd, and Pb, were investigated, including the conditional 
      effects of hydrothermal pretreatment (HTT), the pyrolysis temperature, the 
      pyrolysis time, and the heating rate (HR) on the HM distribution. The results 
      indicated that HTT, as a pretreatment method, achieved the redistribution and 
      preliminary immobilization of the HMs, decreasing the potential environmental 
      risk level. After HTP, the HMs (Cr, Ni, and Cu) were more immobilized, and this 
      effect was enhanced when the pyrolysis temperature was increased from 300 to 
      800  degrees C. However, Zn, Cd, and Pb evaporated under high temperature. Leaching 
      experiments revealed that all the HMs in the pyro-char from pyrolysis at 800  degrees C 
      were below the standard (US EPA). The influences of the HR and pyrolysis time on 
      the HM immobilization were slight under a higher temperature. After HTP, the HM 
      environmental risk decreased to a low level. The physico-chemical characteristics 
      of the pyro-char demonstrated that carbon trapping and chemical sedimentation 
      played leading roles in the middle-temperature range, while mineral matrix 
      encapsulation might have been dominant under high temperature.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Chen, Zhan
AU  - Chen Z
AD  - CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, 
      Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy 
      of Sciences, Beijing 100049, China.
FAU - Yu, Guangwei
AU  - Yu G
AD  - CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, 
      Chinese Academy of Sciences, Xiamen 361021, China.
FAU - Wang, Yin
AU  - Wang Y
AD  - CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, 
      Chinese Academy of Sciences, Xiamen 361021, China. Electronic address: 
      yinwang@iue.ac.cn.
FAU - Wang, Xingdong
AU  - Wang X
AD  - CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, 
      Chinese Academy of Sciences, Xiamen 361021, China.
LA  - eng
PT  - Journal Article
DEP - 20200504
PL  - United States
TA  - Waste Manag
JT  - Waste management (New York, N.Y.)
JID - 9884362
RN  - 0 (Coal Ash)
RN  - 0 (Metals, Heavy)
RN  - 0 (Particulate Matter)
RN  - 0 (Sewage)
RN  - 0 (Solid Waste)
RN  - 7440-44-0 (Carbon)
SB  - IM
MH  - Carbon
MH  - Coal Ash
MH  - Incineration
MH  - *Metals, Heavy
MH  - Particulate Matter
MH  - Pyrolysis
MH  - *Refuse Disposal
MH  - Sewage
MH  - Solid Waste
OTO - NOTNLM
OT  - Heavy metals
OT  - Hydrothermal coupling pyrolysis
OT  - Incineration fly ash
OT  - Migration mechanism
OT  - Municipal sewage sludge
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/05/08 06:00
MHDA- 2020/06/04 06:00
CRDT- 2020/05/08 06:00
PHST- 2020/01/10 00:00 [received]
PHST- 2020/04/10 00:00 [revised]
PHST- 2020/04/27 00:00 [accepted]
PHST- 2020/05/08 06:00 [pubmed]
PHST- 2020/06/04 06:00 [medline]
PHST- 2020/05/08 06:00 [entrez]
AID - S0956-053X(20)30216-6 [pii]
AID - 10.1016/j.wasman.2020.04.048 [doi]
PST - ppublish
SO  - Waste Manag. 2020 May 15;109:28-37. doi: 10.1016/j.wasman.2020.04.048. Epub 2020 
      May 4.