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A multi-stage treatment system for landfill leachate: design and performance
KTH, Superseded Departments, Land and Water Resources Engineering.
KTH, Superseded Departments, Land and Water Resources Engineering.
2004 (English)In: Waste 2004 - Integrated waste management and pollution control: Policy and practice, research and solutions, The Waste Conference Limited, The Barclay centre, University of warwick Science Park, Coventry, UK , 2004, 528-535 p.Conference paper, Published paper (Other academic)
Abstract [en]

A new system for on-site treatment of leachate has been implemented at the Tveta landfill, adjacent to the city of Södertalje, Sweden, and an initial investigation of its performance has been carried out. This is a multi-stage treatment system consisting of steps for aeration and sedimentation in an open pond, indoor treatment with chemicals for precipitation of metals, use of a constructed wetland and forest irrigation for removal of nitrogen. Treatment results from 2002 and 2003 show that the system is able to meet very high effluent standards and therefore the water can be discharged to sensitive water bodies. The chemical treatment can be questioned since operational problems occur with clogging of mechanical devices due to precipitation of calcium as well as generally low metal concentrations do not motivate the high treatment costs. The constructed wetland is of novel design with a removal efficiency of up to 75% for NH4-N, corresponding to an inorganic mass removal rate of up to 5.1 g m-2 d-1. Water sampling in a control ditch adjacent to the forest irrigation revealed a concentration of 1 mg/l for NH4-N.

Place, publisher, year, edition, pages
The Waste Conference Limited, The Barclay centre, University of warwick Science Park, Coventry, UK , 2004. 528-535 p.
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-82556OAI: oai:DiVA.org:kth-82556DiVA: diva2:498353
Conference
Stratford-upon-Avon, 28-30 September 2004, UK
Note
NQCAvailable from: 2012-02-12 Created: 2012-02-12 Last updated: 2012-02-21Bibliographically approved

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  • apa
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