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Life-cycle environmental and economic assessment of sewage sludge treatment in China

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jclepro.2013.12.002 Byline: Changqing Xu, Wei Chen, Jinglan Hong Abstract: A cost-combined life-cycle assessment was conducted to estimate the environmental and economic burdens of 13 sewage sludge-treatment s... Full description

Journal Title: Journal of Cleaner Production March 15, 2014, Vol.67, p.79(9)
Main Author: Xu, Changqing
Other Authors: Chen, Wei , Hong, Jinglan
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Cengage Learning, Inc.
ID: ISSN: 0959-6526
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recordid: gale_ofa358908378
title: Life-cycle environmental and economic assessment of sewage sludge treatment in China
format: Article
creator:
  • Xu, Changqing
  • Chen, Wei
  • Hong, Jinglan
subjects:
  • Sewage Treatment -- Environmental Aspects
  • Sewage Treatment -- Analysis
  • Sludge -- Environmental Aspects
  • Sludge -- Analysis
  • Pollution Control -- Environmental Aspects
  • Pollution Control -- Analysis
ispartof: Journal of Cleaner Production, March 15, 2014, Vol.67, p.79(9)
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jclepro.2013.12.002 Byline: Changqing Xu, Wei Chen, Jinglan Hong Abstract: A cost-combined life-cycle assessment was conducted to estimate the environmental and economic burdens of 13 sewage sludge-treatment scenarios in China. Results showed that anaerobic digestion was a suitable alternative to reduce both environmental and economic burdens because this approach reduced dry mass volume and applied energy recovery. Landfill and incineration technologies had the highest and lowest environmental burdens, respectively. Direct heavy metal emissions generated from landfill and incineration processes contributed significantly to human toxicity and marine ecotoxicity. However, energy recovery from the landfill and incineration stages was important to reduce both environmental and economic burdens. This study indicated that a sewage sludge-treatment scenario with anaerobic digestion, dewatering, and incineration technologies was the most environmentally and economically suitable method to treat sewage sludge because of energy recovery. All new sewage treatment plants should be constructed to operate according to this method, and existing plants should be retrofitted. Author Affiliation: Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Shanda South Road 27, Jinan 250100, PR China Article History: Received 21 June 2013; Revised 2 December 2013; Accepted 3 December 2013
language: English
source: Cengage Learning, Inc.
identifier: ISSN: 0959-6526
fulltext: fulltext
issn:
  • 0959-6526
  • 09596526
url: Link


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subjectSewage Treatment -- Environmental Aspects ; Sewage Treatment -- Analysis ; Sludge -- Environmental Aspects ; Sludge -- Analysis ; Pollution Control -- Environmental Aspects ; Pollution Control -- Analysis
descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jclepro.2013.12.002 Byline: Changqing Xu, Wei Chen, Jinglan Hong Abstract: A cost-combined life-cycle assessment was conducted to estimate the environmental and economic burdens of 13 sewage sludge-treatment scenarios in China. Results showed that anaerobic digestion was a suitable alternative to reduce both environmental and economic burdens because this approach reduced dry mass volume and applied energy recovery. Landfill and incineration technologies had the highest and lowest environmental burdens, respectively. Direct heavy metal emissions generated from landfill and incineration processes contributed significantly to human toxicity and marine ecotoxicity. However, energy recovery from the landfill and incineration stages was important to reduce both environmental and economic burdens. This study indicated that a sewage sludge-treatment scenario with anaerobic digestion, dewatering, and incineration technologies was the most environmentally and economically suitable method to treat sewage sludge because of energy recovery. All new sewage treatment plants should be constructed to operate according to this method, and existing plants should be retrofitted. Author Affiliation: Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Shanda South Road 27, Jinan 250100, PR China Article History: Received 21 June 2013; Revised 2 December 2013; Accepted 3 December 2013
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abstractTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jclepro.2013.12.002 Byline: Changqing Xu, Wei Chen, Jinglan Hong Abstract: A cost-combined life-cycle assessment was conducted to estimate the environmental and economic burdens of 13 sewage sludge-treatment scenarios in China. Results showed that anaerobic digestion was a suitable alternative to reduce both environmental and economic burdens because this approach reduced dry mass volume and applied energy recovery. Landfill and incineration technologies had the highest and lowest environmental burdens, respectively. Direct heavy metal emissions generated from landfill and incineration processes contributed significantly to human toxicity and marine ecotoxicity. However, energy recovery from the landfill and incineration stages was important to reduce both environmental and economic burdens. This study indicated that a sewage sludge-treatment scenario with anaerobic digestion, dewatering, and incineration technologies was the most environmentally and economically suitable method to treat sewage sludge because of energy recovery. All new sewage treatment plants should be constructed to operate according to this method, and existing plants should be retrofitted. Author Affiliation: Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Shanda South Road 27, Jinan 250100, PR China Article History: Received 21 June 2013; Revised 2 December 2013; Accepted 3 December 2013
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