Potential of rangeland species Festuca valesiaca for phytoremediation of contaminated sites: case study of copper mine Bor, Serbia
Апстракт
Metalliferous mine wastes are notable sources of contamination remaining after ore
exploitation process. Bor mine is one of the largest copper mine basins in Europe where longterm
mining caused severe degradation and environmental pollution, making it one of the
remediation priorities in the country. Mine wastes, formed by non-selective overburden
deposition, generated surface Technosols of variable physico-chemical conditions. Moreover,
they are characterized by increased concentration of potentially toxic elements, such as As,
Cu, Pb, and Zn.
Festuca valesiaca Schleich. ex Gaudin, species characteristic for rangelands of
Eurasia, was found colonizing dry sandy patches of Bor mine waste Technosols. Parent
material was fresh andesite and conglomerates rocks of volcanic origin. This research aims at
revealing the potential of F. valesiaca for phytoremediation of such multi-contaminated sites.
Composite rizosphere soil and plant material were collected and analyzed from severa...l
selected sites. Soil pH was measured in 1 to 2.5 ratio of soil and distilled water using pHmeter.
Organic carbon content was determined by the method of Tjurin, while total nitrogen
content was obtained by Kjeldahl digestion process. Pseudo-total and bioavailable
concentration of As, Cu, Pb, and Zn were determined in soil samples by using aqua-regia and
EDTA-extraction, respectively. Underground and aboveground parts of F.valesiaca were
digested with HNO3 and H2O2. Concentration of elements in soil and plant material was
analyzed using ICP-OES (Thermo Scientific, 6500 Duo). Bioconcentration (BCF), bioaccumulation (BAF) and transfer factors (TF) were determined for pseudo-total and
EDTA-available soil fractions.
Technosols colonized by F. valesiaca were alkaline (pH=7.23-8.35), with low organic
matter (0.85-2.5%) and total nitrogen content (0.03-0.05 %). Pseudo-total contents of As, Cu,
Pb and Zn were 137 mg kg-1, 1152 mg kg-1, 113 mg kg-1and 221 mg kg-1, respectively.
Bioavailable fractions ranged from 4.75% (As) to 36.2% (Pb) of their pseudo-total content.
Estimated BCF for Cu was highest, exhibiting values 1.12, while in the case of bioavailable
Cu fractions it was 6.52. Generally, BCFEDTA values were >1 for all investigated elements.
While all BAF factors were <1, BAFEDTA values for As, Cu and Zn were >1 (1.05, 1.14 and
5.87, respectively). Root to shoot ratios were low, ranging from 0.18 (Cu) to 0.41 (As).
F. valesiaca showed phytostabilization potential in case of pseudo-total Cu content at
Bor mine waste site. Moreover, it also exhibited possibility for accumulating all investigated
trace elements in roots in relation to their bioavailable concentration. As this is palatable
species, low transfer of elements from root to shoot enables safe use of F. valesiaca for
phytostabilization of copper mine wastes in Bor, but potentially also for other similar multipolluted
sites within its wide distribution range.
Кључне речи:
grass / phytoremediation / metal / accumulation / mine wasteИзвор:
International conference Central Asian rangelands: global challenges and global opportunities, 2022, 122-123Издавач:
- Samarkand : Samarkand State University
Институција/група
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - CONF AU - Ranđelović, Dragana PY - 2022 UR - https://ritnms.itnms.ac.rs/handle/123456789/1173 AB - Metalliferous mine wastes are notable sources of contamination remaining after ore exploitation process. Bor mine is one of the largest copper mine basins in Europe where longterm mining caused severe degradation and environmental pollution, making it one of the remediation priorities in the country. Mine wastes, formed by non-selective overburden deposition, generated surface Technosols of variable physico-chemical conditions. Moreover, they are characterized by increased concentration of potentially toxic elements, such as As, Cu, Pb, and Zn. Festuca valesiaca Schleich. ex Gaudin, species characteristic for rangelands of Eurasia, was found colonizing dry sandy patches of Bor mine waste Technosols. Parent material was fresh andesite and conglomerates rocks of volcanic origin. This research aims at revealing the potential of F. valesiaca for phytoremediation of such multi-contaminated sites. Composite rizosphere soil and plant material were collected and analyzed from several selected sites. Soil pH was measured in 1 to 2.5 ratio of soil and distilled water using pHmeter. Organic carbon content was determined by the method of Tjurin, while total nitrogen content was obtained by Kjeldahl digestion process. Pseudo-total and bioavailable concentration of As, Cu, Pb, and Zn were determined in soil samples by using aqua-regia and EDTA-extraction, respectively. Underground and aboveground parts of F.valesiaca were digested with HNO3 and H2O2. Concentration of elements in soil and plant material was analyzed using ICP-OES (Thermo Scientific, 6500 Duo). Bioconcentration (BCF), bioaccumulation (BAF) and transfer factors (TF) were determined for pseudo-total and EDTA-available soil fractions. Technosols colonized by F. valesiaca were alkaline (pH=7.23-8.35), with low organic matter (0.85-2.5%) and total nitrogen content (0.03-0.05 %). Pseudo-total contents of As, Cu, Pb and Zn were 137 mg kg-1, 1152 mg kg-1, 113 mg kg-1and 221 mg kg-1, respectively. Bioavailable fractions ranged from 4.75% (As) to 36.2% (Pb) of their pseudo-total content. Estimated BCF for Cu was highest, exhibiting values 1.12, while in the case of bioavailable Cu fractions it was 6.52. Generally, BCFEDTA values were >1 for all investigated elements. While all BAF factors were <1, BAFEDTA values for As, Cu and Zn were >1 (1.05, 1.14 and 5.87, respectively). Root to shoot ratios were low, ranging from 0.18 (Cu) to 0.41 (As). F. valesiaca showed phytostabilization potential in case of pseudo-total Cu content at Bor mine waste site. Moreover, it also exhibited possibility for accumulating all investigated trace elements in roots in relation to their bioavailable concentration. As this is palatable species, low transfer of elements from root to shoot enables safe use of F. valesiaca for phytostabilization of copper mine wastes in Bor, but potentially also for other similar multipolluted sites within its wide distribution range. PB - Samarkand : Samarkand State University C3 - International conference Central Asian rangelands: global challenges and global opportunities T1 - Potential of rangeland species Festuca valesiaca for phytoremediation of contaminated sites: case study of copper mine Bor, Serbia EP - 123 SP - 122 ER -
@conference{ author = "Ranđelović, Dragana", year = "2022", abstract = "Metalliferous mine wastes are notable sources of contamination remaining after ore exploitation process. Bor mine is one of the largest copper mine basins in Europe where longterm mining caused severe degradation and environmental pollution, making it one of the remediation priorities in the country. Mine wastes, formed by non-selective overburden deposition, generated surface Technosols of variable physico-chemical conditions. Moreover, they are characterized by increased concentration of potentially toxic elements, such as As, Cu, Pb, and Zn. Festuca valesiaca Schleich. ex Gaudin, species characteristic for rangelands of Eurasia, was found colonizing dry sandy patches of Bor mine waste Technosols. Parent material was fresh andesite and conglomerates rocks of volcanic origin. This research aims at revealing the potential of F. valesiaca for phytoremediation of such multi-contaminated sites. Composite rizosphere soil and plant material were collected and analyzed from several selected sites. Soil pH was measured in 1 to 2.5 ratio of soil and distilled water using pHmeter. Organic carbon content was determined by the method of Tjurin, while total nitrogen content was obtained by Kjeldahl digestion process. Pseudo-total and bioavailable concentration of As, Cu, Pb, and Zn were determined in soil samples by using aqua-regia and EDTA-extraction, respectively. Underground and aboveground parts of F.valesiaca were digested with HNO3 and H2O2. Concentration of elements in soil and plant material was analyzed using ICP-OES (Thermo Scientific, 6500 Duo). Bioconcentration (BCF), bioaccumulation (BAF) and transfer factors (TF) were determined for pseudo-total and EDTA-available soil fractions. Technosols colonized by F. valesiaca were alkaline (pH=7.23-8.35), with low organic matter (0.85-2.5%) and total nitrogen content (0.03-0.05 %). Pseudo-total contents of As, Cu, Pb and Zn were 137 mg kg-1, 1152 mg kg-1, 113 mg kg-1and 221 mg kg-1, respectively. Bioavailable fractions ranged from 4.75% (As) to 36.2% (Pb) of their pseudo-total content. Estimated BCF for Cu was highest, exhibiting values 1.12, while in the case of bioavailable Cu fractions it was 6.52. Generally, BCFEDTA values were >1 for all investigated elements. While all BAF factors were <1, BAFEDTA values for As, Cu and Zn were >1 (1.05, 1.14 and 5.87, respectively). Root to shoot ratios were low, ranging from 0.18 (Cu) to 0.41 (As). F. valesiaca showed phytostabilization potential in case of pseudo-total Cu content at Bor mine waste site. Moreover, it also exhibited possibility for accumulating all investigated trace elements in roots in relation to their bioavailable concentration. As this is palatable species, low transfer of elements from root to shoot enables safe use of F. valesiaca for phytostabilization of copper mine wastes in Bor, but potentially also for other similar multipolluted sites within its wide distribution range.", publisher = "Samarkand : Samarkand State University", journal = "International conference Central Asian rangelands: global challenges and global opportunities", title = "Potential of rangeland species Festuca valesiaca for phytoremediation of contaminated sites: case study of copper mine Bor, Serbia", pages = "123-122" }
Ranđelović, D.. (2022). Potential of rangeland species Festuca valesiaca for phytoremediation of contaminated sites: case study of copper mine Bor, Serbia. in International conference Central Asian rangelands: global challenges and global opportunities Samarkand : Samarkand State University., 122-123.
Ranđelović D. Potential of rangeland species Festuca valesiaca for phytoremediation of contaminated sites: case study of copper mine Bor, Serbia. in International conference Central Asian rangelands: global challenges and global opportunities. 2022;:122-123..
Ranđelović, Dragana, "Potential of rangeland species Festuca valesiaca for phytoremediation of contaminated sites: case study of copper mine Bor, Serbia" in International conference Central Asian rangelands: global challenges and global opportunities (2022):122-123.