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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2020.03.020
|2 doi
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|a pubmed25n1026.xml
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|a (DE-627)NLM307901440
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|a (NLM)32203898
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|a (PII)S0956-053X(20)30131-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhong, Rigang
|e verfasserin
|4 aut
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|a PCDD/F levels and phase distributions in a full-scale municipal solid waste incinerator with co-incinerating sewage sludge
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 14.04.2020
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|a Date Revised 14.04.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Ltd. All rights reserved.
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|a Co-incinerating sewage sludge in municipal solid waste incinerators (MSWIs) is an up-to-date disposal way with great prospects to market. To verify the environmental safety of this disposal method, a field study was conducted in a MSWI which has achieved PCDD/Fs ultra-low emission. PCDD/F phase partitioning characteristics, congener profiles, and the influence of selective catalytic reduction (SCR) were also investigated. PCDD/F emission levels ranged from 0.0031 to 0.0053 ng I-TEQ/Nm3, distinctly lower than the national standard. For tests co-incinerating 5% sludge, PCDD/F emission levels were averagely 32% lower than tests mono-combusting municipal solid waste. The phase partitioning study found that PCDD/Fs enriched in condensed water took a non-negligible proportion of the total concentration in flue gas. The removal efficiency of SCR in tests co-incinerating sludge was averaged at 41.9%. However, in tests without adding sewage sludge, PCDD/F concentrations in flus gas after SCR were increased. It was found that the elevations were mainly attributed to the increase of low-chlorinated PCDF congeners in gas-phase. By inference, memory effect existing in SCR might be responsible for the increase of PCDD/F levels. PCDD to PCDF ratios in most of the sampling points were >1, suggesting that de novo synthesis is not the dominant formation pathway in the studied incinerator. This study verified that co-incinerating sewage sludge in the MSWI would not elevate the emission levels of PCDD/Fs. If all of the yielded municipal waste is incinerated with adding 5% sewage sludge, more than half of sewage sludge can be disposed safely in Shenzhen
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|a Journal Article
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|a Dioxin
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|a Municipal solid waste incinerator
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|a Particle/gas-phase partition
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|a SCR
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|a Sewage sludge
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|a Air Pollutants
|2 NLM
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|a Dibenzofurans
|2 NLM
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| 650 |
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|a Dibenzofurans, Polychlorinated
|2 NLM
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| 650 |
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|a Polychlorinated Dibenzodioxins
|2 NLM
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| 650 |
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|a Sewage
|2 NLM
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| 650 |
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|a Solid Waste
|2 NLM
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| 700 |
1 |
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|a Wang, Chen
|e verfasserin
|4 aut
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1 |
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|a Zhang, Zuotai
|e verfasserin
|4 aut
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|a Liu, Qingcai
|e verfasserin
|4 aut
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|a Cai, Zongwei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 106(2020) vom: 01. Apr., Seite 110-119
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:106
|g year:2020
|g day:01
|g month:04
|g pages:110-119
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|u http://dx.doi.org/10.1016/j.wasman.2020.03.020
|3 Volltext
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|d 106
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