Extracellular polymeric substances immobilized on microspheres for removal of heavy metals from aqueous environment

Dobrowolski, Ryszard; Krzyszczak, Agnieszka; Dobrzyńska, Joanna; Podkościelna, Beata; Zięba, Emil; Czemierska, Magdalena; Jarosz-Wilkołazka, Anna; Stefaniak, E.

doi:10.1016/j.bej.2019.01.004

Cited by 34 publications

(8 citation statements)

References 42 publications

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“…A research revealed that water from rivers contaminated with Cd, Zn and Cu were mutagenic in nature [74]. These metals are deposited into water resources without being properly treated poses a significant concern [77]. The development of efficient adsorbents for heavy metals has been a major undertaking.…”

Section: Heavy Metalsmentioning

confidence: 99%

Acid modification of lignocellulosic derived material for dye and heavy metals removal: A review

Akindolie

Choi

2022

Environmental Engineering Research

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Researchers have tested Lignocellulose derived material (LDMs) from different sources ranging from agricultural to wood in order to facilitate the adsorption of chemical contaminants, such as heavy metals and dyes from water bodies, to eradicate water contamination. However, different methods have been employed to modify the nature of the LDMs to enable their suitability for contaminants removal. Among all these methods, acid modification of LDMs has gained a lot of attention. This review focused on the use of acid modification LDMs for the removal of anionic and cationic dyes, and heavy metals in water. The characteracerization techniques employed in studying the morphology and functional groups of the LDMs were discussed. The adsorption dynamics and mechanisms of reported studies were extensively summarized. The reported adsorption capacity of unmodified LDMs in the available liturature is in the range of 4.44–156.00 mg/g while for the modified is between 80.05–250.01 mg/g for dye removal. The adsorption capacity of modified LDMs reported was 1.60–18.03 times higher than the unmodified because of additional functional groups such as -SO<sub>3</sub> from sulphuric acid modification. Finally, the future outlook and challenges of this method were pulled together.

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Section: Heavy Metalsmentioning

confidence: 99%

Acid modification of lignocellulosic derived material for dye and heavy metals removal: A review

Akindolie

Choi

2022

Environmental Engineering Research

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“…It was investigated that extracellular polymeric substances immobilized on microspheres and used in heavy metals removal. The adsorption process followed the Langmuir model and the parameters derived from the Langmuir equations indicated chemisorption [41].…”

Section: Isotherms Modelsmentioning

confidence: 99%

Role of different parameters and mathematical models for metal ions adsorption from industrial waste water

2020

Biointerface Res Appl Chem

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Manuscript discussed the role of different parameters for the metal ions removal from industrial waste water. The metal ions removal from waste water is essential to decrease the diseases and environmental hazards caused by heavy metal ions. The different parameters of adsorption including the effect of contact time, dose, pH, temperature, kinetics and Brunauer-Emmett-Teller analysis is discussed. This manuscript focuses on biosorption of metal ions, competitive adsorption of metal ions and ligand based adsorption of metal ions. This manuscript also focuses on the commercially available adsorbent used in the removal of metal ions efficiently including polymeric adsorbent and activated carbon.

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“… 7 20 72.00 100 35.5 [ 16 ] Ochrobactrum 8 30 48.00 150 20.8 [ 16 ] Bacillus subtilis 7 RT 24.00 10 48 [ 23 ] Azotobacter beijerinckii 7 RT 24.00 10 26 [ 23 ] Ni (II) Pseudomonas sp . – 32 – 125 28 [ 22 ] Cloacibacterium normanense. – – 2.00 48 85 [ 26 ] Note : “–” indicates no information.…”

Section: Introductionmentioning

confidence: 99%

“…Looking at the potential applications of EPS in heavy metal sequestration [ [16] , [17] , [18] , [19] , [20] , 22 ] and its production from P. aeruginosa , experiments have been carried out to optimize the pH, temperature, and incubation period for maximum EPS yield. Studies have also been conducted to look into the efficiency of extracted EPS in the removal of Ni (II) and Cr (VI) from aqueous systems.…”

Section: Introductionmentioning

confidence: 99%

Maximizing EPS production from Pseudomonas aeruginosa and its application in Cr and Ni sequestration

Chug

Mathur

Kothari

et al. 2021

Biochemistry and Biophysics Reports

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Heavy metal contamination of water bodies has been a cause of grave concern around the globe. Analysis of various industrial effluents has revealed a perilous level of Cr (VI) and Ni (II). Pseudomonas aeruginosa is an extracellular polymeric substances (EPSs) producing bacterium. EPS has a great potential in the sequestration of heavy metal ions. In the present study efforts have been made to understand the effect of time, pH, and temperature on production of EPS by P. aeruginosa (MTCC 1688). The extracted EPS has been applied for removal of Ni (II) and Cr (VI) ions from aqueous system. The results revealed that highest EPS yield (26 mg/50 mL) can be obtained after 96 h of incubation at pH 6 and 32 °C temperature in 50 mL of culture. Treatment of 10 mg/L Cr (VI) and Ni (II) with 30 mg/L EPS resulted in the removal of 26% and 9% of Cr (VI) and Ni (II), respectively. Fourier-transform infrared spectral analysis revealed the involvement of –OH, –NH, C–O, diketone, and ester functional groups of EPS in the attachment of Cr (VI) ion while involvement of amide and –C O groups in Ni (II) binding with EPS. Scaling-up the production of EPS using bioreactor may further help in developing an efficient process for treatment of water polluted with Cr and Ni.

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Extracellular polymeric substances immobilized on microspheres for removal of heavy metals from aqueous environment

Cited by 34 publications

References 42 publications

Acid modification of lignocellulosic derived material for dye and heavy metals removal: A review

Acid modification of lignocellulosic derived material for dye and heavy metals removal: A review

Role of different parameters and mathematical models for metal ions adsorption from industrial waste water

Maximizing EPS production from Pseudomonas aeruginosa and its application in Cr and Ni sequestration

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