Biosorption of Cu2+, Pb2+ and Cr6+ by a novel exopolysaccharide from Arthrobacter ps-5

Ye, Shuhong; Zhang, Meiping; Hong, Yang; Han, Wei; Xiao, Siguo; Liu, Yan; Wang, Jihui

doi:10.1016/j.carbpol.2013.09.021

Cited by 151 publications

(51 citation statements)

References 31 publications

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“…Bio-flocculants cause aggregation of particles and cells by bridging or charge neutralization, colloid entrapment and double layer compression (Salehizadeh, Shojaosadati 2001). Shuhonga et al (2014) found that exopolysaccharide (EPS) from Arthrobacter ps-5 have strong biosorption capability, where infrared spectrometry analysis demonstrated that the groups of O H, C O, C O C and C O C of the EPS involved in metal biosorption process and were the main functional groups for binding metal ions. Initial pH of the culture medium is known to play a key role in determining the electric charge of the cells together with the oxidation potential that affects the nutrient absorption and enzymatic action (Xia et al 2008 in 2014; 2013; 2012; 2010; 2007 and 2006. …”

Section: + ) Removalmentioning

confidence: 99%

“…Chemical groups in the bio-flocculants act like a bridging agent of metals complexes and reduce inter-metals distances through the ionic bonds mechanism, metals adsorbed onto one bioflocculant molecular chain, and they could be adsorbed simultaneously by other chains, leading to the formation of three-dimensional flocs, which were capable of rapid biosorption process. Shuhonga et al (2014) , respectively.…”

Section: + ) Removalmentioning

confidence: 99%

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Removal of Heavy Metals Using Bacterial Bio-Flocculants of Bacillus Sp. And Pseudomonas Sp.

Azzam

Tawfik

2015

Journal of Environmental Engineering and Landscape Management

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Abstract. Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation-biostimulation approach coupled with rye cultivation had the most profound effect on TNT degradation. Although plants enhanced the total microbial community abundance, blue fenugreek cultivation did not significantly affect the TNT degradation rate. The results from molecular analyses suggested the survival and elevation of the introduced bacterial strains throughout the experiment. Keywords: TNT, bioaugmentation, biostimulation, phytoremediation, microbial community.

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Section: + ) Removalmentioning

confidence: 99%

Section: + ) Removalmentioning

confidence: 99%

Removal of Heavy Metals Using Bacterial Bio-Flocculants of Bacillus Sp. And Pseudomonas Sp.

Azzam

Tawfik

2015

Journal of Environmental Engineering and Landscape Management

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“…The expensive price would contribute to high operational cost to run wastewater treatment facilities. Therefore, activated carbon is not economic especially for developing and undeveloped countries [16]. Secondly, alienation of exhausted activated carbon from wastewater and regeneration are also expensive and complicated [17].…”

Section: Introductionmentioning

confidence: 99%

Application of Kenaf Bast Fiber to Adsorb Cu(II), Pb(II) and Zn(II) in Aqueous Solution: Single- and Multi-metal Systems

Shamsudin¹,

Abdullah²,

Kamari³

2016

IJESD

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“…2) [30]. This phenomenon was described in many studies of metal biosorption by EPS [10,27,[31][32][33][34][35].…”

Section: Effect Of Ph On Biosorptionmentioning

confidence: 97%

Study of biosorption of copper and silver by marine bacterial exopolysaccharides

Deschatre

Ghillebaert

Guézennec³

et al. 2015

WIT Transactions on Ecology and the Environment

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Metal bioremediation was studied by biosorption of analytical grade copper Cu(II) and silver Ag(I) by an exopolysaccharide (EPS) produced by marine bacteria from French Polynesia. Colorimetric analysis showed that EPS was composed of neutral sugars, uronic acids, acetate and especially high sulfate amount (29%). Metal biosorption experiments were conducted in batch process. Results showed that the maximum sorption capacities calculated according to Langmuir model were 400 mg g−1 EPS (6.29 mmol g−1) and 256 mg g ) for Cu(II) and Ag(I), respectively. The influence of pH, biosorbent concentration, ionic strength on EPS biosorption capacities was investigated.Results showed that bacterial EPS can be considered as very promising for copper and silver bioremediation. Further development in dynamic and continuous process at the industrial scale will be organized next.

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Biosorption of Cu2+, Pb2+ and Cr6+ by a novel exopolysaccharide from Arthrobacter ps-5

Cited by 151 publications

References 31 publications

Removal of Heavy Metals Using Bacterial Bio-Flocculants of Bacillus Sp. And Pseudomonas Sp.

Removal of Heavy Metals Using Bacterial Bio-Flocculants of Bacillus Sp. And Pseudomonas Sp.

Application of Kenaf Bast Fiber to Adsorb Cu(II), Pb(II) and Zn(II) in Aqueous Solution: Single- and Multi-metal Systems

Study of biosorption of copper and silver by marine bacterial exopolysaccharides

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