Biosorption of copper(II) and zinc(II) from aqueous solution by Pseudomonas putida CZ1

Chen, Xin Cai; Wang, Yuan Peng; Qi, Lin; Shi, Junyu; Wu, Wei Xiang; Chen, Ying Xu

doi:10.1016/j.colsurfb.2005.10.003

Cited by 204 publications

(77 citation statements)

References 30 publications

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“…This is in agreement with Li et al 30 and Chen et al 16 , who also reported the optimum pH for Zn(II) removal by Pseudomonas putida CZ1 was 5.0. Other studies like Joo et al 17 and Aston et al 31 reported that maximal pH for zinc biosorption for Pseudomonas aeruginosa and Acidithiobacillus caldus BC13 were 6.0 and 4.0, respectively.…”

supporting

confidence: 82%

“…(5) by plotting the lnq eq versus lnC eq the slope is the value of 1/n and the intercept is equal to lnK f . The Freundlich isotherm is also more widely used and provides information on the monolayer adsorption capacity, in contrast to the Langmuir model 16 . All data shown are the mean values of three replicate experiments, and error bars are indicated wherever necessary.…”

Section: Heavy Metal Assaymentioning

confidence: 99%

“…This complex process depends on the properties of metal ions, the cell wall composition of microorganisms, cell physiology, as well as physicochemical factors such as pH, temperature, contact time, ionic strength, and metal concentration 15 . It occurs through complexation, coordination, physical adsorption, chelation, ion exchange, inorganic precipitation or some combination of these processes 11, 16 . These processes involve the active participation of several anionic ligands present in the biomass, such as phosphoryl, carboxyl, carbonyl, sulfydryl and hydroxyl groups, to immobilize metal ions 17 .…”

Section: -15mentioning

confidence: 99%

See 2 more Smart Citations

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Wierzba

2015

Polish Journal of Chemical Technology

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The biosorption of Pb(II), Zn(II) and Ni(II) from industrial wastewater using Stenotrophomonas maltophilia and Bacillus subtilis was investigated under various experimental conditions regarding pH, metal concentration and contact time. The optimum pH values for the biosorption of the three metals were in the range 5.0-6.0, while the optimal contact time for the two bacterial species was 30 min. Experimental data was analyzed using Langmuir and Freundlich isotherms; the former had a better fi t for the biosorption of Pb(II), Zn(II) and Ni(II). The maximum adsorption uptakes (q max ) of the three metals calculated from the Langmuir biosorption equation for S. maltophilia were 133.3, 47.8 and 54.3 for Pb(II), Zn(II) and Ni(II), respectively, and for B. subtilis were 166.7, 49.7 and 57.8 mg/g, respectively. B. subtilis biomass was more favorable for the biosorption of Pb (II) and Ni (II), while S. maltophilia was more useful for the biosorption of Zn (II).

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supporting

confidence: 82%

Section: Heavy Metal Assaymentioning

confidence: 99%

Section: -15mentioning

confidence: 99%

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Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Wierzba

2015

Polish Journal of Chemical Technology

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“…The kinetic parameter decreases in particular As shown in Table 4, experimental data on the isotherms at 20, 30 and 40 o C were better fi tted to the Langmuir model (R 2 >0.994) than to the Freundlich model (R 2 <0.993), suggesting that the former better describes the state of equilibrium of Ni(II) and Zn(II) biosorption by the yeast biomass under the experimental conditions. The maximum sorption capacity of the monolayer increased with increasing temperature (20- 24 , and Chen et al 35 and Nasernejad et al 36 , using Y. lipolytica ISF7, Saccharomyces cerevisiae, brown alge Padina australis, bacteria Pseudomonas putida, and carrot residues as biosorbents, respectively. A much lower maximum sorption capacity was observed by Sari et al 20 and Celaya et al 37 who used Cladonia furcata and Thiobacillus ferrooxidans; the corresponding values were 7.9 mg/g (nickel) and 9.7 mg/g (zinc).…”

Section: Biosorption Isotherm Modelsmentioning

confidence: 99%

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Wierzba

2017

Polish Journal of Chemical Technology

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This study examined the biosorption process of Ni(II) and Zn(II) from an aqueous solution by dead biomass of Yarrowia lipolytica. Optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, and temperature. The biosorbent was characterized by FTIR, which indicated the participation of hydroxyl, carboxyl, amide and amine groups in the process of binding the metal ions. The results showed that the biosorption processes of both metal ions closely followed pseudo-second order kinetics. The equilibrium data of Ni(II) and Zn(II) ions at 20, 30 and 40 o C fi tted the Langmuir and Freundlich isotherm models. Langmuir isotherm provided a better fi t to the equilibrium data, with a maximum biosorption capacity of the Y. lipolytica biomass for Ni(II) and Zn(II) of 30.12 and 44.44 mg/g respectively. The calculated thermodynamic parameters demonstrated that the biosorption of Ni(II) and Zn(II) ions onto the Y. lipolytica was feasible, spontaneous and endothermic.

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“…Microorganisms has been largely explored for remediation as these are easy to handle and can be easily manipulated genetically for transfer of metal binding and transforming genes (Barkay et al 2003). Microorganisms possess greater remediation efficiency even at low metal concentrations without producing secondary pollutants (Chen et al 2005;De et al 2008). Bacteria have developed several efficient systems including extracellular precipitation; intercellular accumulation; oxidation and reduction reactions; methylation/ demethylation and extracellular detoxification for detoxification of heavy metals (Brierley 1990;Lloyd 2002;Gadd 2010).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of mercury biotransformation by heavy metal-tolerant Alcaligenes strain isolated from industrial sludge

Gupta¹,

Nirwan²

2014

Int. J. Environ. Sci. Technol.

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Heavy metal pollution affects environment adversely and leads to severe implications for both flora and fauna. In the present work, bacterial strain JS-1 was isolated with tolerance for different metals such as mercury (Hg), lead (Pb), cadmium (Cd), nickel (Ni), arsenic (As), tin (Sn), selenium (Se), zinc (Zn), chromium (Cr) and copper (Cu). JS-1 showed a significant tolerance for mercuric chloride (up to 5,000 lg/g) along with an efficient metal uptake and transformation. Growth of JS-1 was marginally affected on exposure to high mercury concentration due to acclimatization of the culture towards mercury. No mercury was found in cell-free supernatant after 96 h of incubation with 500 lg/g and 1,000 lg/g of mercury as an active ingredient. Almost all the mercury was found associated with cell biomass as determined by hydride generation atomic absorption spectroscopy. Only 60 % of mercury was sequestered in bacterial biomass on exposure to 2,000 and 5,000 lg/g mercury. As a detoxification mechanism, nearly 5 % of sequestered mercury was volatilized by the selected isolate (JS-1). Further X-ray diffraction analysis of deposited silvery grey biomass confirmed biotransformation of sequestered mercuric ions into monovalent mercury (Hg 2 Cl 2 ), a non-bioavailable form of mercury. Culture was characterized morphologically, physiologically and biochemically. 16S rRNA gene sequence of JS-1 revealed its phylogenetic relationship and 98 % homology with Alcaligenes faecalis, a Gram-negative rod-shaped bacterium.

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Biosorption of copper(II) and zinc(II) from aqueous solution by Pseudomonas putida CZ1

Cited by 204 publications

References 30 publications

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Biosorption of nickel (II) and zinc (II) from aqueous solutions by the biomass of yeast Yarrowia lipolytica

Evaluation of mercury biotransformation by heavy metal-tolerant Alcaligenes strain isolated from industrial sludge

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