Retention of organic Fe-P-colloids from peat mining water in an overland flow wetland treatment system in northern Finland

Kaisa Heikkinen, Raimo Ihme

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

Abstract

The importance of dissolved organic matter (DOM) for the organic, Fe and P reductions achieved in an overland flow area (OFA) was estimated and the changes in the nature of DOM studied by gel filtration at a site in northern Finland. In the OFAs peat mining water is purified conducting it across a natural mire of a given size. DOM plays an important role in the transport and reduction of organic matter, Fe and P in OFAs. The retention of Fe in filtrates, dissolved organic P and to some extent also DOM in the OFA under low flow conditions in summer is probably promoted by the high Fe content of the highest apparent molecular (HAMW) weight DOM in the peat mining water. On the other hand, the originally low Fe content of the DOM in the HAMW fraction may be one reason for the generally low reductions in these water quality parameters achieved during flood periods.
Original languageEnglish
Pages (from-to)547-560
JournalArchiv für Hydrobiologie
Volume134
Issue number4
Publication statusPublished - 1995
MoE publication typeA1 Journal article-refereed

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colloids
overland flow
dissolved organic matter
colloid
peat
Finland
wetlands
wetland
water
filtrates
mire
low flow
gel
water quality
gels
organic matter
molecular weight
summer

Cite this

@article{a18c354f00ee467a86774f4036ec452a,
title = "Retention of organic Fe-P-colloids from peat mining water in an overland flow wetland treatment system in northern Finland",
abstract = "The importance of dissolved organic matter (DOM) for the organic, Fe and P reductions achieved in an overland flow area (OFA) was estimated and the changes in the nature of DOM studied by gel filtration at a site in northern Finland. In the OFAs peat mining water is purified conducting it across a natural mire of a given size. DOM plays an important role in the transport and reduction of organic matter, Fe and P in OFAs. The retention of Fe in filtrates, dissolved organic P and to some extent also DOM in the OFA under low flow conditions in summer is probably promoted by the high Fe content of the highest apparent molecular (HAMW) weight DOM in the peat mining water. On the other hand, the originally low Fe content of the DOM in the HAMW fraction may be one reason for the generally low reductions in these water quality parameters achieved during flood periods.",
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publisher = "E. Schweizerbart'sche Verlagsbuchhandlung",
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Retention of organic Fe-P-colloids from peat mining water in an overland flow wetland treatment system in northern Finland. / Heikkinen, Kaisa; Ihme, Raimo.

In: Archiv für Hydrobiologie, Vol. 134, No. 4, 1995, p. 547-560.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Retention of organic Fe-P-colloids from peat mining water in an overland flow wetland treatment system in northern Finland

AU - Heikkinen, Kaisa

AU - Ihme, Raimo

N1 - Project code: YKI4332

PY - 1995

Y1 - 1995

N2 - The importance of dissolved organic matter (DOM) for the organic, Fe and P reductions achieved in an overland flow area (OFA) was estimated and the changes in the nature of DOM studied by gel filtration at a site in northern Finland. In the OFAs peat mining water is purified conducting it across a natural mire of a given size. DOM plays an important role in the transport and reduction of organic matter, Fe and P in OFAs. The retention of Fe in filtrates, dissolved organic P and to some extent also DOM in the OFA under low flow conditions in summer is probably promoted by the high Fe content of the highest apparent molecular (HAMW) weight DOM in the peat mining water. On the other hand, the originally low Fe content of the DOM in the HAMW fraction may be one reason for the generally low reductions in these water quality parameters achieved during flood periods.

AB - The importance of dissolved organic matter (DOM) for the organic, Fe and P reductions achieved in an overland flow area (OFA) was estimated and the changes in the nature of DOM studied by gel filtration at a site in northern Finland. In the OFAs peat mining water is purified conducting it across a natural mire of a given size. DOM plays an important role in the transport and reduction of organic matter, Fe and P in OFAs. The retention of Fe in filtrates, dissolved organic P and to some extent also DOM in the OFA under low flow conditions in summer is probably promoted by the high Fe content of the highest apparent molecular (HAMW) weight DOM in the peat mining water. On the other hand, the originally low Fe content of the DOM in the HAMW fraction may be one reason for the generally low reductions in these water quality parameters achieved during flood periods.

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JF - Fundamental and Applied Limnology

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