Abstract
Artisanal gold mining activities in Indonesia often cause mercury (Hg) pollution, which is toxic and bioaccumulative. Phytoremediation using Pteris vittata L. as a hyperaccumulator and rhizobacteria Pseudomonas aeruginosa RTKP1 is an alternative to overcome this problem. This study aimed to analyze the effect of combined treatment of Pseudomonas aeruginosa RTKP1 induction and compost on the ability of Pteris vittata L. to accumulate Hg in gold mine tailings. The treatment consisted of bacterial induction without compost, and with compost at a tailings:compost ratios of 1:1 and 2:1. This study used descriptive and quantitative analyses. The results showed that Pseudomonas aeruginosa RTKP1 induction without compost resulted in the highest reduction in Hg levels in the tailings, from 10.7 mg/kg to 0.00467 mg/kg with a medium-high BCF value and TF <1, indicating a phytostabilization mechanism. However, the addition of compost reduced the effectiveness of bioaccumulation. Hence, treatment of Pseudomonas aeruginosa RTKP1 without compost was most effective in increasing the ability of Pteris vittata L. to reduce mercury content.
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Claims 3
Claim · model-written summary
Pseudomonas aeruginosa RTKP1 induction without compost gave the highest reduction of mercury in the tailings, from 10.7 to 0.00467 mg/kg.
- Taxon
- Pteris vittata L.
Pteris vittatat0 - Treatment
- Pseudomonas aeruginosa RTKP1 induction without composte1
- Interactor
- Pseudomonas aeruginosa RTKP1
Pseudomonas aeruginosae0symbiont - Outcome
- reduction in Hg levels in the tailingse1
- Direction
- decreaseinferrede1
- Value
- from 10.7 mg/kg to 0.00467 mg/kge1
- Comparator
- the addition of composte2
- Setting
- gold mine tailingt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ability of Pteris vittata L. as a phytoremediator for mercury in gold mine tailing”
e0“Phytoremediation using Pteris vittata L. as a hyperaccumulator and rhizobacteria Pseudomonas aeruginosa RTKP1 is an alternative to overcome this problem”
e1“Pseudomonas aeruginosa RTKP1 induction without compost resulted in the highest reduction in Hg levels in the tailings, from 10.7 mg/kg to 0.00467 mg/kg with a medium-high BCF value and TF <1, indicating a phytostabilization mechanism”
e2“However, the addition of compost reduced the effectiveness of bioaccumulation”
Claim · model-written summary
The low Hg content in the tailings with bacterial induction without compost indicates a phytostabilization mechanism in Pteris vittata.
- Taxon
- Pteris vittata L.Pteris vittatat0
- Outcome
- phytostabilization mechanisme1
- Qualifier
- medium-high BCF value and TF <1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ability of Pteris vittata L. as a phytoremediator for mercury in gold mine tailing”
e1“Pseudomonas aeruginosa RTKP1 induction without compost resulted in the highest reduction in Hg levels in the tailings, from 10.7 mg/kg to 0.00467 mg/kg with a medium-high BCF value and TF <1, indicating a phytostabilization mechanism”
Claim · model-written summary
The addition of compost reduced the effectiveness of Pteris vittata bioaccumulation compared with bacterial induction without compost.
- Taxon
- Pteris vittata L.Pteris vittatat0
- Treatment
- the addition of composte2
- Outcome
- effectiveness of bioaccumulatione2
- Direction
- reducede2
- Comparator
- Pseudomonas aeruginosa RTKP1 induction without composte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ability of Pteris vittata L. as a phytoremediator for mercury in gold mine tailing”
e1“Pseudomonas aeruginosa RTKP1 induction without compost resulted in the highest reduction in Hg levels in the tailings”
e2“However, the addition of compost reduced the effectiveness of bioaccumulation”