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The performance of a natural treatment system for landfill leachate with special emphasis on the fate of organic pollutants

In English

Författare

  • Lars Thörneby
  • Lennart Mathiasson
  • L Martensson
  • W Hogland

Summary, in English

A natural treatment system for the treatment of leachate was Studied at Moskogen landfill in southern Sweden. This facility consists of three consecutive ponds and a soil-plant (SP)system. A test area, receiving water from the third pond with the same hydraulic load as the SP-systern, was Used for estimation of the latter system. Quality parameters including biochemical oxygen demand, total organic carbon, ammonium, nitrate, orthophosphate, and total suspended solids along the treatment line were determined as well as Soluble metals (Cu, Cd, Zn, Cr, Ni, and Pb). In addition a thorough investigation along the treatment tine has also been performed concerning volatile organic Compounds and semi-volatile organic Compounds. Non-polar organic compounds were investigated using gas chromatography-mass spectrometry. Quantification was based on the assumption of equal response for the compounds found in comparison with the chosen marker Substances. For polar, water-soluble Compounds the measurements were restricted to phenolic compounds using high-performance liquid chromatography. Several different types of organic compounds were found in the raw leachate including aromatics, benzene-sulfonamides, biphenyls, naphthalene, organic phosphates, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, phenols and phthalates. The treatment system efficiently reduced organic Pollutants, heavy metals, and nitrogen/phosphorous compounds. Most metals and organic compounds in the leachate were already significantly reduced to a low level in the treatment ponds and ammonium-N was efficiently transformed to nitrate-N in the SP-system.

Publiceringsår

2006

Språk

Engelska

Sidor

183-194

Publikation/Tidskrift/Serie

Waste Management & Research

Volym

24

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

SAGE Publications

Ämne

  • Analytical Chemistry

Nyckelord

  • wmr 882-2
  • organic pollutants
  • soil-plant system
  • leachate
  • natural treatment
  • metals

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1096-3669