Remediation of heavy metal contaminated soils by dissolved organic matter
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Remediation of heavy metal contaminated soils by dissolved organic matter. / Borggaard, Ole K.; Holm, Peter Engelund; Strobel, Bjarne W.
In: International Journal of Agricultural Resources, Governance and Ecology, Vol. 16, No. 3/4, 2020, p. 278-288.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Remediation of heavy metal contaminated soils by dissolved organic matter
AU - Borggaard, Ole K.
AU - Holm, Peter Engelund
AU - Strobel, Bjarne W.
PY - 2020
Y1 - 2020
N2 - Dissolved organic matter (DOM) isolated from soils enriched in fulvic acid (FA) or from processed organic wastes rich in low-molecular-weight-organic-acids (LMWOAs) was tested as extractant of heavy metals (HMs) from contaminated soils. The test showed that DOM can be as effective as the environmentally problematic, synthetic aminopolycarboxylic acids such as EDTA and NTA. Therefore, DOM is suggested as a possible chelant in remediation of contaminated soils by chelant-enhanced phytoextraction and soil washing. However, the efficiency of DOM as chelant depends on numerous factors, e.g., pH, the soil and DOM compositions and extraction time, which need further studies before DOM can be recommended for practical use in the field.
AB - Dissolved organic matter (DOM) isolated from soils enriched in fulvic acid (FA) or from processed organic wastes rich in low-molecular-weight-organic-acids (LMWOAs) was tested as extractant of heavy metals (HMs) from contaminated soils. The test showed that DOM can be as effective as the environmentally problematic, synthetic aminopolycarboxylic acids such as EDTA and NTA. Therefore, DOM is suggested as a possible chelant in remediation of contaminated soils by chelant-enhanced phytoextraction and soil washing. However, the efficiency of DOM as chelant depends on numerous factors, e.g., pH, the soil and DOM compositions and extraction time, which need further studies before DOM can be recommended for practical use in the field.
U2 - 10.1504/IJARGE.2020.115329
DO - 10.1504/IJARGE.2020.115329
M3 - Journal article
VL - 16
SP - 278
EP - 288
JO - International Journal of Agricultural Resources, Governance and Ecology
JF - International Journal of Agricultural Resources, Governance and Ecology
SN - 1462-4605
IS - 3/4
ER -
ID: 273076053