LCA on wastewater and sludge management for local decision-making in Gothenburg – are new LCA method developments enough?

• This paper describes an LCA study that was made to inform decision-makers in Gothenburg about two different sludge management options. Incineration of anaerobically digested sludge with recovery of a phosphorus fertiliser product seemed preferable to using pasteurised anaerobically digested sludge in agriculture. Aspects under the control of the decision-makers were important for overall results, and caused the main differences between the studied systems, indicating considerable potential for local improvement efforts. Applying a human toxicity characterisation method with a more sludge specific fate model were important, but not crucial, for the results. However, the results are connected to large uncertainties and remaining challenges are discussed in the paper.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Annan teknik -- Övrig annan teknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Naturresursteknik -- Miljöledning (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Environmental Engineering -- Environmental Management (hsv//eng)

Nyckelord

biosolids

decision-making

life cycle assessment

sewage sludge

Publikations- och innehållstyp

kon (ämneskategori)

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