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LUND UNIVERSITY LIBRARIES

Från Värme till Industriyta

Widén, Amanda LU (2013) MVEK02 20131
Studies in Environmental Science
Abstract
The aim of this study is to assess if it is environmentally justified to use ashes from district heat production for construction of industrial surfaces. Today around 60% of the ashes are used to cover landfills. The need for this will disappear within 15 year, when all landfills are covered. To avoid that the ashes subsequently end up in landfill themself, we need to find new uses for it. This thesis analyses if cement mixed ash can be used for construction in an environmentally sound way.
The results show that the studied type of ash constructions will contain relatively high metal concentrations. However, the leachate concentrations are significantly lower than the total metal concentrations and are generally below the limit for... (More)
The aim of this study is to assess if it is environmentally justified to use ashes from district heat production for construction of industrial surfaces. Today around 60% of the ashes are used to cover landfills. The need for this will disappear within 15 year, when all landfills are covered. To avoid that the ashes subsequently end up in landfill themself, we need to find new uses for it. This thesis analyses if cement mixed ash can be used for construction in an environmentally sound way.
The results show that the studied type of ash constructions will contain relatively high metal concentrations. However, the leachate concentrations are significantly lower than the total metal concentrations and are generally below the limit for leachate from inert waste. Leaching volumes are also expected to be small because the structural parameters show that the ash-cement blend is a dense and strong material. The conclusion is therefore that the use of ash in this way gives only a small risk of contamination and at the same time the use of virgin materials can be reduced. It is therefore environmentally justified to use ashes in this way. (Less)
Please use this url to cite or link to this publication:
author
Widén, Amanda LU
supervisor
organization
course
MVEK02 20131
year
type
M2 - Bachelor Degree
subject
keywords
Fjärrvärme, Energiaska, E.ON Värme, Econova, Industriyta
language
Swedish
id
3810582
date added to LUP
2013-12-19 16:54:28
date last changed
2013-12-19 16:54:28
@misc{3810582,
  abstract     = {The aim of this study is to assess if it is environmentally justified to use ashes from district heat production for construction of industrial surfaces. Today around 60% of the ashes are used to cover landfills. The need for this will disappear within 15 year, when all landfills are covered. To avoid that the ashes subsequently end up in landfill themself, we need to find new uses for it. This thesis analyses if cement mixed ash can be used for construction in an environmentally sound way.
The results show that the studied type of ash constructions will contain relatively high metal concentrations. However, the leachate concentrations are significantly lower than the total metal concentrations and are generally below the limit for leachate from inert waste. Leaching volumes are also expected to be small because the structural parameters show that the ash-cement blend is a dense and strong material. The conclusion is therefore that the use of ash in this way gives only a small risk of contamination and at the same time the use of virgin materials can be reduced. It is therefore environmentally justified to use ashes in this way.},
  author       = {Widén, Amanda},
  keyword      = {Fjärrvärme,Energiaska,E.ON Värme,Econova,Industriyta},
  language     = {swe},
  note         = {Student Paper},
  title        = {Från Värme till Industriyta},
  year         = {2013},
}