Finding new sewage sludge treatment solutions for the arctic city of Kiruna

As Sweden’s northernmost city, Kiruna has very particular demands for its sewage sludge treatment. This study tests hydrothermal carbonisation (HTC) as a treatment option for Kiruna to stabilize the sewage sludge, facilitate its transport by volume reduction and prepare the sludge for recovery of re...

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Bibliographic Details
Main Authors: Bauer, Torben, Lagerkvist, Anders
Format: Conference Object
Language:English
Published: Luleå tekniska universitet, Geovetenskap och miljöteknik 2020
Subjects:
Sewage sludge management
hydrothermal carbonisation
lifecycle assessment
EASETECH
Other Environmental Engineering
Annan naturresursteknik
Arctic
Kiruna
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-84160
Description
Summary:As Sweden’s northernmost city, Kiruna has very particular demands for its sewage sludge treatment. This study tests hydrothermal carbonisation (HTC) as a treatment option for Kiruna to stabilize the sewage sludge, facilitate its transport by volume reduction and prepare the sludge for recovery of resources. The study consists out of an experimental part and a lifecycle assessment (LCA) development, which also gives options to use the results in other LCA scenarios incorporating HTC. Preliminary results show that HTC is a treatment that can fulfil Kiruna’s demands and that an optimization of the treatment’s settings can greatly increase the efficiency and effectiveness of the HTC treatment.

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