PHYTO-AND-CHEMICAL-REMEDIATION OF COBALT- CONTAMINATED DESERTIC SANDY SOIL | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 9, Volume 31, Issue 6, June 2006, Page 4065-4075 PDF (3.16 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2006.204056 | ||||
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| Authors | ||||
| A.A. Abd EI-Haleem1; Samira E. Mahrous2; H.S. Salem1; T.M. Salem3 | ||||
| 1Soils Depart., Faculty of Agric., Moshtohor, Benha Univ . | ||||
| 2Soil Water and Environment Res. Inst., Agric. Res. Center (ARC), Giza, Egypt | ||||
| 3Soil Water and Environment Res. Inst., Agric. Res. Center (ARC), Giza, Egypt | ||||
| Abstract | ||||
| This study was executed to: (i) evaluate the ability of sunflower (Helianthus annuus), sorghum (Sorghum bicolor) and elephant grass (Pennisetum purpureum Schum) to accumulate Co in their tissues. (ii) and define to what extent these plants can clean-up a Co-contaminated sandy soil. Two experiments were conducted, the first was nutriculture (hydroponics) experiment and a pot sandy soil one. Sunflower absorbed appreciable quantities of cobalt in both experiments. Elephant grass was superior in accumulation of cobalt to the other plants particularly in the soil experiment. Sunflower and elephant grass could be considered hyperaccumnulator plants for cobalt and could be used to remedy Co-contaminated soils. Using phytoremediation may be of less cost as compared with other remediation techniques. Using chemical extraction in sequences may remove high amounts of cobalt and be most effective as compared with phytoremediation. Extraction of heavy metals with EDTA was more effective than using AB-DTPA extraction. | ||||
| Keywords | ||||
| Phytoremediation; chemical remediation; cobalt; sandy soil; sunflower; sorghum; elephant grass plant | ||||
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