Kinetic studies for the biosorption of lead and copper ions by Penicillium simplicissimum immobilized within loofa sponge

Li, Xiaoming; Liao, Dexiang; Xu, Xueqin; Yang, Qi; Zeng, Guangming; Zheng, Wei; Guo, Liang

doi:10.1016/j.jhazmat.2008.02.068

Cited by 55 publications

(14 citation statements)

References 36 publications

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“…The highest uptake of Pb (59.67 mg/g) by A. terreus indicated more binding sites on cell wall of this fungus and its potential as biosorbent to remove Pb from industrial wastewater containing higher concentration of Pb. Similar results with respect to differential Pb uptake by different fungi were reported by earlier workers [15][16][17][18][19][20].…”

Section: Growth and Uptake Of Pb By Fungal Isolatessupporting

confidence: 91%

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

et al. 2011

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Wastewater particularly from electroplating, paint, leather, metal and tanning industries contain enormous amount of heavy metals. Microorganisms including fungi have been reported to exclude heavy metals from wastewater through bioaccumulation and biosorption at low cost and in eco-friendly way. An attempt was, therefore, made to isolate fungi from sites contaminated with heavy metals for higher tolerance and removal of heavy metals from wastewater. Seventy-six fungal isolates tolerant to heavy metals like Pb, Cd, Cr and Ni were isolated from sewage, sludge and industrial effluents containing heavy metals. Four fungi (Phanerochaete chrysosporium, Aspegillus awamori, Aspergillus flavus, Trichoderma viride) also were included in this study. The majority of the fungal isolates were able to tolerate up to 400 ppm concentration of Pb, Cd, Cr and Ni. The most heavy metal tolerant fungi were studied for removal of heavy metals from liquid media at 50 ppm concentration. Results indicated removal of substantial amount of heavy metals by some of the fungi. With respect to Pb, Cd, Cr and Ni, maximum uptake of 59.67, 16.25, 0.55, and 0.55 mg/g was observed by fungi Pb3 (Aspergillus terreus), Trichoderma viride, Cr8 (Trichoderma longibrachiatum), and isolate Ni27 (A. niger) respectively. This indicated the potential of these fungi as biosorbent for removal of heavy metals from wastewater and industrial effluents containing higher concentration of heavy metals.

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Section: Growth and Uptake Of Pb By Fungal Isolatessupporting

confidence: 91%

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

et al. 2011

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“…Moreover, as pH increased to 5.0, more functional groups with negative charges, such as carboxyl, amine or hydroxyl, become exposed with the subsequent increase of attraction sites to positively charged ions, thus enhancing biosorption uptake. These results were similar to other research related to the biosorption of Cu (II) (4, 22). Based on this observation, the optimum pH for Cu absorption was set at 5.0 to avoid metal precipitation.…”

Section: Resultssupporting

confidence: 92%

Biosorption of Copper (II) from Aqueous Solution Using Non-Living <i>Mesorhizobium amorphae</i> Strain CCNWGS0123

et al. 2012

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The mining industry generates huge amounts of wastewater, containing toxic heavy metals. Treatment to remove heavy metals is necessary and recent work has been focused on finding more environmentally friendly materials for removing heavy metals from wastewater. Biosorption can be an effective process for heavy metal removal from aqueous solutions. Our objectives were to investigate the removal of copper (II) from aqueous solutions using dead cells of Mesorhizobium amorphae CCNWGS0123 under differing levels of pH, agitation speed, temperature, initial copper concentration, biosorbent dose and contact time using flame atomic absorption spectroscopy for metal estimation. The maximum copper removal rate was achieved at pH 5.0, agitation speed 150×g, temperature 28°C and initial Cu (II) concentration of 100 mg L−1. Maximum biosorption capacity was at 0.5 g L−1 and equilibrium was attained within 30 min. Langmuir and Freundlich isotherms showed correlation coefficients of 0.958 and 0.934, respectively. Fourier transform-infrared spectroscopy (FT-IR) analysis indicated that many functional groups, such as O-H, N-H, C-H, C=O, -NH, -CN, C-N, C-O, amide -I, -II, -III and unsaturated alkenes, alkyls and aromatic groups on the cell surface were involved in the interaction between CCNWGS0123 and Cu. Scanning electron microscope and energy dispersive X-ray scanning results showed deformation, aggregation, and cell-surface damage due to the precipitation of copper on the cell surface. Dead cells of CCNWGS0123 showed potential as an efficient biosorbent for the removal of Cu2+ from aqueous solutions.

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“…2), suggesting EPS should have the higher potential to adsorb positively charged Pb 2+ , which is corresponding to the enhancement of biosorption onto the EPS surface. At higher pH values, the decrease of biosorption together with the unchangeable effi ciency of Pb(II) removal could be explained by the formation of insoluble precipitates from the solution, which is in agreement with the earlier studies by Fan et al [21] and Li et al [23]. To get the maximum lead adsorption and avoid the interference from precipitation, subsequent experiments were carried out at pH 5.5.…”

Section: Effect Of Sm-a87 Eps Concentration Ph Temperature and Contsupporting

confidence: 87%

Evaluation of a deep-sea mesophilic bacteria exopolysaccharides in removal of low concentration Pb(II) from aqueous medium

Qie

Wang

Zhou

et al. 2011

Desalination and Water Treatment

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2011) Evaluation of a deep-sea mesophilic bacteria exopolysaccharides in removal of low concentration Pb(II) from aqueous medium, Desalination and Water Treatment, 28:1-3, 174-182, A B S T R AC TWangia profunda SM-A87, representative of a new genus of family Flavobacteriaceae, was isolated from deep-sea sediment samples near the southern Okinawa. The exopolysaccharides (EPS) produced by W. profunda SM-A87 was used as an absorbent of Pb(II) from low concentration solution in this paper. The effect of various parameters such as EPS concentration, pH, temperature, contact time, ionic strength and the competitive adsorption of Pb(II), Cu(II), Cd(II) were evaluated in batch technique. The adsorption kinetic and isotherm were also calculated. The preferences biosorption conditions were, EPS dosage at 0.1~0.2 mg/l, pH value at 5.5, temperature at 20~30°C and contact time for 60 min, respectively. Coexistent cations decreased Pb(II) uptake in the order of K +

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Kinetic studies for the biosorption of lead and copper ions by Penicillium simplicissimum immobilized within loofa sponge

Cited by 55 publications

References 36 publications

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

Bioremediation of Heavy Metals in Liquid Media Through Fungi Isolated from Contaminated Sources

Biosorption of Copper (II) from Aqueous Solution Using Non-Living <i>Mesorhizobium amorphae</i> Strain CCNWGS0123

Evaluation of a deep-sea mesophilic bacteria exopolysaccharides in removal of low concentration Pb(II) from aqueous medium

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