Biosorption of heavy metals and cephalexin from secondary effluents by tolerant bacteria

Al-Gheethi, Adel; Norli, I.; Lalung, Japareng; Azlan, A. Megat; Farehah, Z. A. Nur; Kadir, Mohd Omar Ab

doi:10.1007/s10098-013-0611-9

Cited by 47 publications

(21 citation statements)

References 44 publications

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“…In contrast, increasing of cell biomass associate with the removal efficiency. Similar findings were also reported with different bacterial species and metal ions [1,4]. The high concentration of the biomass lead to the agglomeration of these cells which effect negatively on the removal process due to the decreasing in the surface area exposed to the metal ions even in the presence high concentrations of these ions [11].…”

Section: Effect Of Nickel Ions and Cells Concentrationsupporting

confidence: 83%

“…The bacterial tolerance for Ni 2+ ions was conducted at 15 mM Ni 2+ ion concentrations on Brain Heart Infusion medium [4]. The bacterial biomass were prepared as living cells (untreated cells) and dead cells (pre-treated at 100 ºC for 15 mins).…”

Section: Preparation Of the Bacterial Cell Biomass And Ni 2+ Ions Solmentioning

confidence: 99%

“…In the present study, the maximum removal was achieved on 9 th and 10 th hrs. This might be related to the affinity of the Ni 2+ ions to the biosorption site located on the bacterial cell surface, where Ni 2+ ions have less affinity to biosorp on bacterial cells in comparison with others metals [4].…”

Section: Time Dependency Studies For Nickel Biosorptionmentioning

confidence: 99%

“…Therefore, the examination for each bacterial species might lead to find a high potential strain which is more applicable for treatment of wastewater. The bacterial strains isolated from heavy metal contaminated wastewater might occur more potential to resist and remove the metal ions compared to that obtained from noncontaminated area even if both strains are classified within the same species [3,4]. Sundar et al [5] revealed that the potential of B. subtilis to remove Cr 3+ ions improved effectively after the acclimatization to high concentrations of Cr 3+ .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Potential of Staphylococcus xylosus strain for recovering nickel ions from aqueous solutions

Al-Gheethi

Efaq

Mohamed

et al. 2017

AIP Conference Proceedings

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Section: Effect Of Nickel Ions and Cells Concentrationsupporting

confidence: 83%

Section: Preparation Of the Bacterial Cell Biomass And Ni 2+ Ions Solmentioning

confidence: 99%

Section: Time Dependency Studies For Nickel Biosorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Potential of Staphylococcus xylosus strain for recovering nickel ions from aqueous solutions

Al-Gheethi

Efaq

Mohamed

et al. 2017

AIP Conference Proceedings

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“…(Gram‐positive bacteria) is one of the many types of bacteria that have been investigated extensively by several authors. It has been reported as a high‐efficiency bacteria in the removal of heavy metals due to the presence of teichoic acids in the peptidoglycan layers of their cell walls . The potential of living and dead bacterial cells in removing heavy metal ions take place via passive uptake, which is also called biosorption in living cells.…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metal Ions From Aqueous Solutions Using Bacillus subtilis Biomass Pre‐Treated by Supercritical Carbon Dioxide

Al-Gheethi

Mohamed

Noman

et al. 2017

CLEAN Soil Air Water

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Surface properties of bacterial cells enable them to be used in the removal of heavy metals. Moreover, the inactivation of bacterial cells via chemical or physical processes may enhance the biosorption efficiency for heavy metals. The use of supercritical carbon dioxide (SC-CO 2 ) to inactivate bacteria based on destruction of cell walls took place due to the pressurized CO 2 . In this study, the pre-treatment of Bacillus subtilis cells by SC-CO 2 (BM1), steam autoclaving (BM2), and untreated living cells (BM3) were investigated to show improvement in heavy metal removal. The removal process was optimized based on the main factors affecting bacterial biosorption, which included heavy metals ion concentrations, cell biomass concentrations, pH, time, and temperature. The efficiency of bacterial biomass in removing Ni 2þ ions in the presence of different concentrations of Pb 2þ , Cu 2þ , Zn 2þ , and Cd 2þ was also tested. BM1 and BM2 exhibited the highest potential for the removal of nickel ions in comparison to BM3. The maximum efficiency was 98.54, 99.2, and 96.3% for BM1, BM2, and BM3, respectively. Moreover, BM1 displayed a higher biosorption capacity for Ni 2þ , Cu 2þ , Zn 2þ , Pb 2þ , and Cd 2þ (>150 mg g À1 ) than BM2 and BM3. Biosorption on bacterial cell biomass of Ni 2þ ions shows lower removal affinity in the presence of other metal ions.In conclusion, the pre-treatment of bacterial cells biomass by SC-CO 2 enhanced the removal process of heavy metal ions compared to untreated living cells.

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Phycoremediation of Textile Wastewater: Possibilities and Constraints

Jose

Archanaa

2019

Application of Microalgae in Wastewater Treatment

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Biosorption of heavy metals and cephalexin from secondary effluents by tolerant bacteria

Cited by 47 publications

References 44 publications

Potential of Staphylococcus xylosus strain for recovering nickel ions from aqueous solutions

Potential of Staphylococcus xylosus strain for recovering nickel ions from aqueous solutions

Removal of Heavy Metal Ions From Aqueous Solutions Using Bacillus subtilis Biomass Pre‐Treated by Supercritical Carbon Dioxide

Phycoremediation of Textile Wastewater: Possibilities and Constraints

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