Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
An evaluation of reactive filter media for treating landfill leachate
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
2005 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 61, no 7, 933-940 p.Article in journal (Refereed) Published
Abstract [en]

 A laboratory bench-scale column study was conducted to evaluate permeable reactive filter materials as a new method for removal of heavy metals and inorganic nitrogen from landfill leachate. Mixtures of sand and peat, blast-furnace slag (BFS) and peat, and Polonite (R) and peat were tested by loading columns with leachate collected from a pond at Tvetaverket Landfill, Sweden. Sand, peat and Polonite (R) represent natural materials. BFS is a by-product from steel-works. The metal treatment efficiencies of the media were assessed and Polonite (R) was found to perform best, where Mn, Fe, Zn and Cu concentrations were removed by 99%, 93%, 86% and 67%, respectively. This material was also able to reduce inorganic N by 18%. The BFS showed good removal efficiency for Cu (66%), Zn (62%), Ni (19%) and Mo (16%). The sand-peat mixture did not demonstrate a promising removal capacity for any of the elements studied with the exception of Cu (25%). The removal of different elements was suggested to be a combination of several factors, i.e. precipitation, ion exchange and adsorption. Prior to full-scale application of reactive filters at a landfill site, matrix selection, filter design and operational procedures must be developed.

Place, publisher, year, edition, pages
2005. Vol. 61, no 7, 933-940 p.
Keyword [en]
Column experiment, Filter media, Landfill leachate, Metal removal, Sorption
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-8700DOI: 10.1016/j.chemosphere.2005.03.036ISI: 000233380900004Scopus ID: 2-s2.0-27644525278OAI: oai:DiVA.org:kth-8700DiVA: diva2:14091
Note
QC 20100827Available from: 2008-06-05 Created: 2008-06-05 Last updated: 2017-12-14Bibliographically approved
In thesis
1. On-site wastewater treatment: Polonite and other filter materials for removal of metals, nitrogen and phosphorus
Open this publication in new window or tab >>On-site wastewater treatment: Polonite and other filter materials for removal of metals, nitrogen and phosphorus
2008 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Bed filters using reactive materials are an emerging technology for on-site wastewater treatment. Chemical reactions transfer contaminants from the aqueous to the solid phase. Phosphorus is removed from domestic wastewater by sorption to filter materials, which can then be recycled to agriculture as fertilisers and soil amendments. This thesis presents long-term column and field-scale studies of nine filter materials, particularly the novel product Polonite®. Phosphorus, nitro-gen and metals were removed by the mineral-based materials to varying degrees. Polonite and Nordkalk Filtra P demonstrated the largest phosphorus removal capacity, maintaining a PO4-P removal efficiency of >95%. Analysis of filter bed layers in columns with downward wastewater flow, showed that phosphorus, carbon and nitrogen content was vertically distributed, with de-creasing values from surface to base layer. Polonite and Filtra P accumulated 1.9-19 g P kg-1. Nitrogen in wastewater was scarcely removed by the alkaline filter materials, but transformation from NH4-N to NO3-N was >90%. Pot experiments with barley (Hordeum vulgare L.) revealed that after wastewater treatment, slags and Polonite could increase plant production. Batch experi-ments and ATR-FTIR investigations indicated that amorphous tricalcium phosphate (ATCP) was formed in the materials, so some of the accumulated PO4-P was readily available to plants. Low heavy metal contents occurred in the materials, showing that they can be applied as soil amend-ments in agriculture without contamination risks. A full-scale treatment system using Polonite as filter material showed an average PO4-P removal efficiency of 89% for a 92-week period, indicat-ing the robustness of the filter bed technology.

Place, publisher, year, edition, pages
Stockholm: KTH, 2008. x, 38 p.
Series
Trita-LWR. PHD, ISSN 1650-8602 ; 1043
Keyword
alkaline materials, heavy metals, mechanisms, nutrient removal, sorption, speciation modelling
National Category
Other Environmental Engineering
Identifiers
urn:nbn:se:kth:diva-4811 (URN)978-91-7415-024-7 (ISBN)
Public defence
2008-06-16, F3, KTH, Lindstedtsvägen 26, Stockholm, 13:00
Opponent
Supervisors
Note
QC 20100907Available from: 2008-06-05 Created: 2008-06-05 Last updated: 2010-09-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Kietlinska, AgnieszkaRenman, Gunno
By organisation
Land and Water Resources Engineering
In the same journal
Chemosphere
Civil Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 74 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf