Environmental assessment of supercritical water oxidation and other sewage sludge handling options.

Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Research Abstract Details 

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Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Abstract Text:

Sustainable development relies on the eco-efficient use of all flows in society; more value created out of each resource unit. Supercritical water oxidation (SCWO) can be used for treatment of wet organic waste. The technology has been under development for over 20 years but has not yet been fully commercialized. SCWO allows for complete oxidation of all organics in sewage sludge and almost complete recovery of the inherent energy, essentially without harmful emissions. In this paper, a life-cycle assessment (LCA) of sewage sludge SCWO (Aqua-Critox) is presented and the results are compared with LCA results for other sludge handling options: agricultural use, co-incineration with municipal solid waste, incineration with subsequent phosphorus extraction (Bio-Con) and sludge fractionation with phosphorus recovery (Cambi-KREPRO). For SCWO, beneficial utilization of the heat of reaction is of crucial importance for the outcome. The electricity consumed by pumping and the nitrous oxide produced are other important parameters. The best sludge handling option from an environmental point of view depends on what aspect is considered more important in the impact assessment. Regarding global warming, the energy recovery methods perform better than agricultural use.

Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Publishing Authors By Initials

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Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Waste management & research : the journal of the I

VOLUME: 23

Page Numbers: 356-66

Journal Abbreviation: Waste Manag Res

ISSN: 0734-242X

DAY: 9

MONTH: Aug

YEAR: 2005

Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Information

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LANGUAGE: eng

NlmUniqueID: 9881064

Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Keywords Mesh Terms:

KEYWORDS: Water

MESH TERMS: chemistry

Chemical & Substance for Abstract: Environmental assessment of supercritical water oxidation and other sewage sludge handling options. Information

Substance Name: Water

Registry Number: 7732-18-5

Grant and Affiliation Information for Environmental assessment of supercritical water oxidation and other sewage sludge handling options.

AFFILIATION: Chemical Engineering and Environmental Science, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. magdalena.svanstrom@chemeng.chalmers.se

Country: England

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MEDLINETA: Waste Manag Res

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