Accumulation of Fe-Al by Scirpus grossus Grown in Synthetic Bauxite Mining Wastewater and Identification of Resistant Rhizobacteria

Nur'Izzati Ismail, Siti Rozaimah Sheikh Abdullah, Mushrifah Idris, Hassimi Abu Hasan, Mohd Izuan Effendi Halmi, Nadya Hussin Al Sbani, Omar Hamed Jehawi, Salmi Nur Ain Sanusi, Mohd Hafifi Hashim

Research output: Research - peer-reviewArticle

Abstract

A phytotoxicity study was conducted to determine the maximum accumulation of Fe and Al in Scirpus grossus and to isolate and identify the Fe-Al-resistant rhizobacteria from S. grossus roots. Plants were grown in artificial bauxite mining wastewater containing iron (Fe) and aluminum (Al) (at a mass ratio of 3:1) with five different Fe-Al mixture concentrations (ranging from 90 mg/L Fe + 30 mg/L Al to 450 mg/L Fe + 150 mg/L Al) together with a plant control (without the addition of Fe and Al) for 102 days. Maximum metal accumulation in plants was 53,187 mg Fe/kg and 8,864 mg Al/kg (dry basis), which occurred on day 42 in the 450 mg/L Fe + 150 mg/L Al treatment. Approximately 27 rhizobacteria were isolated from roots of all the treatments on day 102. Among these, three isolates, identified as Bacillus cereus strain NII, Bacillus pumilus strain NII, and Brevibacterium sp. strain NII, showed high resistance and tolerance to the highest Fe-Al concentrations (i.e., 450 mg/L Fe + 150 mg/L Al) in the medium. Thus, they can be considered Fe-Al-resistant rhizobacteria, since they survived and tolerated the most in Fe-and Al-rich medium during screening.

LanguageEnglish
Pages367-375
Number of pages9
JournalEnvironmental Engineering Science
Volume34
Issue number5
DOIs
StatePublished - 1 May 2017

Fingerprint

bauxite
rhizobacterium
aluminum
wastewater
Bauxite mines
Aluminum
Wastewater
phytotoxicity
tolerance
iron
metal
screening
Bacillus cereus
Bacilli
Screening
Iron
Metals

Keywords

  • Bauxite mining wastewater
  • Iron-aluminum
  • Phytoremediation
  • Resistant rhizobacteria
  • Scirpus grossus

ASJC Scopus subject areas

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

Cite this

Accumulation of Fe-Al by Scirpus grossus Grown in Synthetic Bauxite Mining Wastewater and Identification of Resistant Rhizobacteria. / Ismail, Nur'Izzati; Sheikh Abdullah, Siti Rozaimah; Idris, Mushrifah; Abu Hasan, Hassimi; Halmi, Mohd Izuan Effendi; Hussin Al Sbani, Nadya; Hamed Jehawi, Omar; Sanusi, Salmi Nur Ain; Hashim, Mohd Hafifi.

In: Environmental Engineering Science, Vol. 34, No. 5, 01.05.2017, p. 367-375.

Research output: Research - peer-reviewArticle

Ismail, Nur'Izzati ; Sheikh Abdullah, Siti Rozaimah ; Idris, Mushrifah ; Abu Hasan, Hassimi ; Halmi, Mohd Izuan Effendi ; Hussin Al Sbani, Nadya ; Hamed Jehawi, Omar ; Sanusi, Salmi Nur Ain ; Hashim, Mohd Hafifi. / Accumulation of Fe-Al by Scirpus grossus Grown in Synthetic Bauxite Mining Wastewater and Identification of Resistant Rhizobacteria. In: Environmental Engineering Science. 2017 ; Vol. 34, No. 5. pp. 367-375
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