Claim · model-written summary
Among four measured extractable metals, only soil Zn was higher in sludge-treated soil with EDTA than without EDTA.
- Taxon
- Sunflower
Helianthus annuuse0 - Treatment
- sludge-treated soil with EDTAe1
- Outcome
- Zne1
- Direction
- highere1
- Comparator
- sludge-treated soil without EDTAe1
- Setting
- greenhouse conditionse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower (Helianthus annuus L.) was grown under greenhouse conditions”
e1“only Zn had a higher concentration in sludge-treated soil with EDTA compared to sludge-treated soil without EDTA”
Title
EDTA-Facilitated Phytoremediation of Soil with Heavy Metals from Sewage Sludge
M. B. Kirkham International Journal of Phytoremediation 2000. doi:10.1080/15226510008500037
Other claims from this paper (10)
- Intervention effect Extractable Fe, Cu and Mn concentrations in sludge-treated soil were similar with and without EDTA.
- Observation Total soil Pb was below the detection limit (<10 mg kg-1).
- Observation Total soil Cd was below the detection limit (< 1 mg kg-1).
- Observation Total soil Cr was unaffected by the treatment.
- Observation Concentrations of all measured elements in plants were higher than in the soil.
- Intervention effect Without EDTA, sludge-treated plants had higher concentrations of the five heavy elements than plants grown without sludge.
- Intervention effect With EDTA, cadmium was lower in sludge-treated plants than in plants with EDTA and no sludge.
- Intervention effect After EDTA treatment, Cu, Fe and Zn concentrations in plants were similar with and without sludge.
- Intervention effect Plants with EDTA had higher lead concentrations than plants without EDTA.
- Recommendation The authors conclude that EDTA can facilitate phytoremediation of soil with Pb from sewage sludge.