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PAH-sequestration capacity of granular and powder activated carbon amendments in soil, and their effects on earthworms and plants
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2012 (Engelska)Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 88, nr 6, s. 699-705Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A field lysimeter study was carried out to investigate whether the amendment of 2% powder and granular activated carbon (PAC and GAC) to a soil with moderate PAH contamination had an impact on the PAH bioaccumulation of earthworms and plants, since AC is known to be a strong sorbent for organic pollutants. Furthermore, secondary effects of AC on plants and earthworms were studied through growth and nutrient uptake, and survival and weight gain. Additionally, the effect of AC amendments on soil characteristics like pH, water holding capacity, and the water retention curve of the soil were investigated. Results show that the amendment of 2% PAC had a negative effect on plant growth while the GAC increased the growth rate of plants. PAC was toxic to earthworms, demonstrated by a significant weight loss, while the results for GAC were less clear due to ambiguous results of a field and a parallel laboratory study. Both kinds of AC significantly reduced biota to soil accumulation factors (BSAFs) of PAHs in earthworms and plants. The GAC reduced the BSAFs of earthworms by an average of 47 +/- 44% and the PAC amendment reduced them by 72 +/- 19%. For the investigated plants the BSAFs were reduced by 46 +/- 36% and 53 +/- 22% by the GAC and PAC, respectively.

Ort, förlag, år, upplaga, sidor
2012. Vol. 88, nr 6, s. 699-705
Nyckelord [en]
PAH, Activated carbon, Soil, Earthworms, BSAF
Nationell ämneskategori
Miljövetenskap
Identifikatorer
URN: urn:nbn:se:su:diva-80407DOI: 10.1016/j.chemosphere.2012.03.080ISI: 000305729100005OAI: oai:DiVA.org:su-80407DiVA, id: diva2:556347
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AuthorCount:7;

Tillgänglig från: 2012-09-25 Skapad: 2012-09-19 Senast uppdaterad: 2022-02-24Bibliografiskt granskad

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Cornelissen, Gerard

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Institutionen för tillämpad miljövetenskap (ITM)
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Chemosphere
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