Simultaneous biosorption of cadmium (II) and lead (II) ions by pretreated biomass of Phanerochaete chrysosporium

Li, Qingbiao; Wu, Songtao; Liu, Gang; Liao, Xian; Deng, Xu; Sun, Daohua; Yue-Lin, HU; Huang, Yili

doi:10.1016/s1383-5866(03)00187-4

Cited by 164 publications

(63 citation statements)

References 12 publications

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“…1). Several authors have mentioned that the presence of cadmium affects bacterial growth in mixed or pure SRB cultures (Cabrera et al 2006;Utgikar et al 2002), because high concentrations of heavy metals block essential functional groups or modify the active conformations of biological molecules (Li et al 2004). The lag phase can increase up to 4 days with increasing cadmium concentrations in solution; besides, cadmium decreases the sulfate reduction process affecting bacterial growth (Cabrera et al 2006;Naz et al 2005).…”

Section: Resultsmentioning

confidence: 99%

Cadmium removal at high concentration in aqueous medium: mediated by Desulfovibrio alaskensis

López‐Pérez

López

González

2014

Int. J. Environ. Sci. Technol.

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Experimental studies were performed to evaluate the high capacity of cadmium removal by Desulfovibrio alaskensis strain 6SR, which is a sulfate-reducing bacterium. The study was conducted in batch cultures of D. alaskensis 6SR in a medium with a high cadmium concentration. The results indicated that bacterial growth was not dramatically affected by the presence of 170 mg/L of cadmium, following a similar behavior to that of the control culture. Besides, we observed a fast production of extracellular polymeric substances, which play an important role in cadmium removal. The bacterium was able to remove 99.9 % of cadmium at the tested concentration. The main mechanism of cadmium removal was its precipitation as cadmium sulfide (yellow precipitate), followed by its adsorption in the polymeric substances. Most cadmium up take occurred within the first 48 h, and the largest cadmium adsorption capacity was achieved at 144 h. Cadmium adsorption dynamics was evaluated by pseudo-first order and pseudo-second-order kinetic models; where the best adjustment was obtained with the pseudosecond-order model. The micrographs, obtained with transmission electron microscopy, showed a very low intracellular and periplasmic accumulation of cadmium in the cells. Thereby, this bacterium facilitates a process of removal and recovery of cadmium at high concentrations without the need of cellular lysis or special washes.

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Section: Resultsmentioning

confidence: 99%

Cadmium removal at high concentration in aqueous medium: mediated by Desulfovibrio alaskensis

López‐Pérez

López

González

2014

Int. J. Environ. Sci. Technol.

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“…It depends on pH, temperature, number of solutes and their concentrations [4], and type of interaction among different ions as well as between ions and cell binding sites. A mixture of metals can show three possible behaviors [7,22,23]: antagonism, synergism and no-interaction.…”

Section: Introductionmentioning

confidence: 99%

Metal biosorption onto dry biomass of Arthrospira (Spirulina) platensis and Chlorella vulgaris: Multi-metal systems

Rodrigues

Ferreira

Carvalho

et al. 2012

Journal of Hazardous Materials

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“…The consumption of fruit juices stored in galvanized cans has resulted in mass parrot poisonings with zinc [3]. Many methods have been developed and used to remove metal ions from wastewater such as granulated activated Carbon [4], fly ash [5], peat [6], recycled alum sludge [7], peanut hulls [8], resins [9], kaolinite [10], manganese oxides [11], zeolite [12], biomaterials [13,14]. However, the removal efficiencies of metal ions of these adsorbents were low.…”

Section: Introductionmentioning

confidence: 99%

Effect of Functionalized Carbon Nanofibers with Carboxylic Function Group on the Removal of Zinc from water

Atieh¹

2011

IJESD

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Abstract-This study was carried out to evaluate the environmental application of modified and non-modified carbon nanofiber through the experiment removal of zinc from water. Results of the study showed that raw (non-modified) CNFs have very poor efficiency in removing zinc from water by conventional adsorption mechanism. However, when CNFs was modified with carboxylic group, a significant improvement in the zinc removal efficiency was observed. Five independent variables including pH, CNFs dosage, contact time, agitation speed and initial concentration were carried out to determine the influence of these parameters on the adsorption capacity of the zinc from water. Results of the study showed that, 97 % of zinc was removed by using COOH-CNFs at pH 7, 150 rpm, and 2 hours. These high removal efficiencies were likely attributed to the strong affinity of zinc to the physical and chemical properties of the CNFs. For results analysis, adsorption isotherms have been used in order to study the kinetics of the adsorption behavior and to determine the adsorption capacity of the absorbents. IndexTerms-Carbon nanofiber, zinc removal, functionlization and adsorption isotherms.

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Simultaneous biosorption of cadmium (II) and lead (II) ions by pretreated biomass of Phanerochaete chrysosporium

Cited by 164 publications

References 12 publications

Cadmium removal at high concentration in aqueous medium: mediated by Desulfovibrio alaskensis

Cadmium removal at high concentration in aqueous medium: mediated by Desulfovibrio alaskensis

Metal biosorption onto dry biomass of Arthrospira (Spirulina) platensis and Chlorella vulgaris: Multi-metal systems

Effect of Functionalized Carbon Nanofibers with Carboxylic Function Group on the Removal of Zinc from water

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