Personal Research Database

Full Text: 2010\J Haz Mat182, 64.pdf

Abstract: The aqueous removal of diclofenac (DF) by micrometric iron particles (Fe-o) and amended Fe-o (Me-o (Fe-o)) under oxic and anoxic conditions was investigated. Bimetallic systems were obtained by plating the surface of Fe with Co, Cu, Ir, Ni, Pd and Sn. Experimental results confirmed the superiority of (Me (Fe)) for DF removal except for IrFe (oxic) and SnFe (anoxic). Under anoxic conditions. Pd was by far the most efficient plating element followed by Ir, Ni, Cu, Co and Sn. However, under oxic conditions, Pd and Cu showed almost the same efficiency in removing DF followed by Ni, Co, Sn and Ir. Oxidative and reductive DF transformation products were identified under oxic and anoxic conditions respectively. In some systems (e.g. CoFe and SnFe oxic/anoxic; PdFe oxic: NiFe anoxic), no transformation products could be detected. This was ascribed to the nature of the plating element and its impact on the process of the formation of metal corrosion products (mCPs). MCPs are known for their high potential to strongly adsorb, bond, sequestrate and enmesh both the original contaminant and its reaction products. Obtained results corroborate the universal validity of the view, that aqueous contaminants are basically removed by adsorption and co-precipitation. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Activated Carbon, Adsorption, Atmospheric-Pressure Photoionization, Bimetallics, Corrosion, Diclofenac, Drinking-Water, Emerging Contaminants, Environmental Remediation, Fe-O, H₂O Systems, Granular Iron, HPLC, MS, Metallic Iron, Permeable Reactive Barriers, Pharmaceutical Residues, Removal, Water Treatment, Zero-Valent Iron

? Mustafa, F., Al-Ghouti, M.A., Khalili, F.I. and Al-Degs, Y.S. (2010), Characteristics of organosulphur compounds adsorption onto Jordanian zeolitic tuff from diesel fuel. Journal of Hazardous Materials, 182 (1-3), 97-107.

Full Text: 2010\J Haz Mat182, 97.pdf

Abstract: The removal of organosulphur compounds (ORS) from diesel fuel is an important aspect of Jordanian’s effort to reduce air pollution. Currently, the total sulphur content in Jordanian diesel fuel is 12000 ppmw (1.2%, wt/wt), but Jordanian government has recently introduced new restrictions that will reduce this level gradually to internationally acceptable levels. The zeolitic tuff (ZT), from Tlul Al-Shahba region, was characterised using various analytical techniques. It was found that the Freundlich model fitted the adsorption isotherms more accurately than the Langmuir model; indicating that the ZT had a heterogeneous surface. The Langmuir adsorption capacity values for the three particle size ranges (100-200), (300-400), and (500-600) mu m were 7.15, 6.32, and 5.52 mg/g and the column capacities were 4.45, 2.57, and 1.92 mg/g, respectively. The spent ZT was regenerated by washing with n-heptane with an efficiency of 81.5%. Two adsorption mechanisms were investigated. One is that the interaction of thiophene with the Bronsted site of the ZT through S atoms; the other is via C-S bond cleavage in thiophene-derived carbocations to form unsaturated fragments on the Bronsted acid sites. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Adsorbents, Adsorption, Adsorption Capacity, Adsorption Isotherms, Batch, Bond Cleavage, Carbon, Compounds, Cs, Diesel Fuel, Freundlich, Isotherms, Langmuir, Langmuir Model, Natural Zeolite, Organosulphur Compounds, Pollution, Removal, Selective Adsorption, Sorption, Spectroscopy, Sulfur, Water, Zeolitic Tuff

? Zhang, X.J., Chen, C., Ding, J.Q., Hou, A.X., Li, Y., Niu, Z.B., Su, X.Y., Xu, Y.J. and Laws, E.A. (2010), The 2007 water crisis in Wuxi, China: Analysis of the origin. Journal of Hazardous Materials, 182 (1-3), 130-135.

Full Text: 2010\J Haz Mat182, 130.pdf

Abstract: An odorous tap water crisis that affected two million residents for several days occurred in Wuxi, China in the summer of 2007. Volatile sulfide chemicals including methyl thiols, dimethyl sulfide, dimethyl disulfide, and dimethyl trisulfide were the dominant odorous contaminants in Lake Taihu and in tap water during the crisis. These contaminants originated from the decomposition of a massive cyanobacterial bloom that was triggered by illegal industrial discharges and inadequately regulated domestic pollution. A specific emergency drinking water treatment process was quickly developed using a combination of potassium permanganate oxidation and powdered activated carbon adsorption. The emergency treatment process removed the odor from the tap water and solved the crisis successfully in several days. This experience underscores the suggestion that a combination of stresses associated with eutrophication and industrial and domestic wastewater discharges can push an aquatic system to the tipping point with consequences far more severe than would occur if the system were subjected to each stress separately. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Activated Carbon, Adsorption, Algae, China, Cyanobacteria, Cyanobacterial Bloom, Decomposition, Drinking Water, Dynamics, Emergency Drinking Water Treatment, Eutrophication, Lake Taihu, Odors, Oxidation, Pollution, System, Taihu Lake, Tipping Point, Treatment, Volatile Organic Sulfur Chemical, Volatile Sulfur-Compounds, Wastewater, Water, Water Treatment

? Pose-Juan, E., Rial-Otero, R. and López-Periago, J.E. (2010), Sorption of penconazole applied as a commercial water-oil emulsion in soils devoted to vineyards. Journal of Hazardous Materials, 182 (1-3), 136-143.

Full Text: 2010\J Haz Mat182, 136.pdf

Abstract: The objective of this work was to assess the effect of surfactants and oils of a commercial formulation on the potential mobility of penconazole in agricultural soils that have been subjected to a high rate of application of agricultural chemicals. Soil-water partition tests on a commercial water-oil emulsion formulation of penconazole (WOEP) in 0.01 M CaCl2 containing 35 mg L-1 penconazole. incubated for 24h, showed a maximum retention of approximately 250-300 mg penconazole kg(-1) soil. Approximately 70% of the total penconazole retained by the solid phase was sorbed on the soil (175-200 mg kg(-1)). The other 30% was retained by the adjuvants present in the commercial formulation. The formulation also influenced the water-soil partition, increasing the sorption in tests on batch studies using technical-grade penconazole (TGP). Soils with high total copper and organic matter had the greatest affinity for penconazole when added as WOEP. Additionally, adsorption of penconazole followed an S-type isotherm, whose behavior was consistent with the ability of the technical-grade penconazole to form aggregates. In the case of the WOEP, the S-type behavior could be attributed to the surfactant present in the formulation, which could be adsorbed onto soil as hemimicelles, which in turn may facilitate adsorption of penconazole. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Adjuvant, Adsorption, Adsorption, Batch, Copper, Fungicide, Indian Soils, Isotherm, Metalaxyl, Mobility, Penconazole, Pesticide Hydrophobicity, Retention, Soil, Soils, Sorption, Surfactants, Triazole Fungicides

? Gang, D.D., Deng, B.L. and Lin, L.S. (2010), As(III) removal using an iron-impregnated chitosan sorbent. Journal of Hazardous Materials, 182 (1-3), 156-161.

Full Text: 2010\J Haz Mat182, 156.pdf

Abstract: An iron-impregnated chitosan granular adsorbent was newly developed to evaluate its ability to remove arsenic from water. Since most existing arsenic removal technologies are effective in removing As(V) (arsenate), this study focused on As(III). The adsorption behavior of As(III) onto the iron-impregnated chitosan absorbent was examined by conducting batch and column studies. Maximum adsorption capacity reached 6.48 mg g^-1 at pH = 8 with initial As(III) concentration of 1007 mu g L-1. The adsorption isotherm data fit well with the Freundlich model. Seven hundred and sixty eight (768) empty bed volumes (EBV) of 308 mu g L^-1 of As(III) solution were treated in column experiments. These are higher than the empty bed volumes (EBV) treated using iron-chitosan composites as reported by previous researchers. The investigation has indicated that the iron-impregnated chitosan is a very promising material for As(III) removal from water. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Absorbent, Adsorbent, Adsorbents, Adsorption, Adsorption, Adsorption Behavior, Adsorption Capacity, Adsorption Isotherm, Aqueous-Solution, Arsenate, Arsenic, Arsenic Removal, As(III), As(III) Adsorption Kinetics, As(V), Batch, Batch And Column Studies, Behavior, Capacity, Chitosan, Column, Column Experiments, Column Studies, Composites, Concentration, Data, Drinking-Water, Equilibrium, Experiments, Freundlich, Freundlich Model, Granular Ferric Hydroxide, Investigation, Iron-Chitosan, Isotherm, Kinetics, L1, Model, pH, Removal, Rights, Soils, Solution, Sorbent, Sorption, Technologies, Trivalent Arsenic, Water

? Zhang, K., Dwivedi, V., Chi, C.Y. and Wu, J.S. (2010), Graphene oxide/ferric hydroxide composites for efficient arsenate removal from drinking water. Journal of Hazardous Materials, 182 (1-3), 162-168.

Full Text: 2010\J Haz Mat182, 162.pdf

Abstract: A series of novel composites based on graphene oxide (GO) cross-linked with ferric hydroxide was developed for effective removal of arsenate from contaminated drinking water. GO, which was used as a supporting matrix here, was firstly treated with ferrous sulfate. Then, the ferrous compound cross-linked with GO was in situ oxidized to ferric compound by hydrogen peroxide, followed by treating with ammonium hydroxide. The morphology and composition of the composites were analyzed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The ferric hydroxide was found to be homogenously impregnated onto GO sheets in amorphous form. These composites were evaluated as absorbents for arsenate removal from contaminated drinking water. For the water with arsenate concentration at 51.14 ppm, more than 95% of arsenate was absorbed by composite GO-Fe-5 with an absorption capacity of 23.78 mg arsenate/g of composite. Effective arsenate removal occurred in a wide range of pH from 4 to 9. However, the efficiency of arsenate removal was decreased when pH was increased to higher than 8. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Adsorbents, Adsorption, Arsenate, Arsenate Removal, Arsenite, As(III), Drinking Water, Ferric Hydroxide, Granular Activated Carbon, Graphene, Graphene Oxide, Graphite, Hydrous Ferric-Oxide, Iron-Oxide, Oxidation, pH, Removal, Speciation, Water, X-Ray Diffraction

? Sun, H.W., Xu, X.Y., Gao, G.D., Zhang, Z.Z. and Yin, P.J. (2010), A novel integrated active capping technique for the remediation of nitrobenzene-contaminated sediment. Journal of Hazardous Materials, 182 (1-3), 184-190.

Full Text: 2010\J Haz Mat182, 184.pdf

Abstract: The objective of this study was to develop a novel integrated active capping system and to investigate its efficiency in the remediation of nitrobenzene-contaminated sediment. An integrated Fe(0)-sorbent-microorganism remediation system was proposed as an in situ active capping technique to remediate nitrobenzene-contaminated sediment. In this system, nitrobenzene was reduced to aniline by Fe(0), which has a much better biodegradability. The sorption capacity and structural properties of cinder was measured to examine its applicability as the sorbent and matrix for this integrated capping system. Indigenous microorganisms from Songhuajiang River sediment, which was contaminated by nitrobenzene and aniline in Chinese Petrochemical Explosion in Jilin, were acquired one month after the explosion and used in this active capping system to degrade nitrobenzene and its reduced product, aniline. A bench-scale remediation experiment was conducted on a mimicked nitrobenzene-contaminated sediment to investigate the efficiency of the integrated capping system and the synergistic effects of the combined components in the active capping system. The results show that this integrated active capping system can effectively block the release of target pollutants into the upper-layer water and remove the compounds from the environment. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Active Capping, Aquatic Environment, Aqueous-Solution, Biodegradation, Carbon Amendment, Compounds, Degradation, Groundwater, In Situ Remediation, Integrated Fe(0)-Sorbent-Microorganism, Microorganisms, Nitrobenzene, Reduction, Remediation, Sediment, Soils, Sorbent, Sorption, System, Trichloroethylene, Water, Zero-Valent Iron

? Mureseanu, M., Reiss, A., Cioatera, N., Trandafir, I. and Hulea, V. (2010), Mesoporous silica functionalized with 1-furoyl thiourea urea for Hg(II) adsorption from aqueous media. Journal of Hazardous Materials, 182 (1-3), 197-203.

Full Text: 2010\J Haz Mat182, 197.pdf

Abstract: New organic-inorganic hybrid materials were prepared by covalently anchoring 1-furoyl thiourea on mesoporous silica (SBA-15). By means of various characterization techniques (X-ray diffraction, nitrogen adsorption-desorption, thermogravimetric analysis, and FTIR spectroscopy) it has been established that the organic groups were successfully anchored on the SBA-15 surfaces and the ordering of the inorganic support was preserved during the chemical modifications. The hybrid sorbents exhibited good ability to remove Hg(II) from aqueous solution. Thus, at pH 6, the adsorption capacity of mercury ions reached 0.61 mmol g(-1). (C) 2010 Elsevier B.V. All rights reserved.

Keywords: 1-Furoyl Thiourea, Adsorption, Adsorption Capacity, Analysis, Complexed Mercury, Grafting, Heavy-Metal Ions, Hg(II), Hybrid Materials, Hybrid Materials, Mercury Removal, Mesoporous, Mesoporous Silica, Molecular-Sieves, Monolayers, pH, Remediation, Removal, SBA-15, Selective Adsorption, Separation, Silica, Surfaces, X-Ray Diffraction

? Deng, H., Zhang, G.L., Xu, X.L., Tao, G.H. and Dai, J.L. (2010), Optimization of preparation of activated carbon from cotton stalk by microwave assisted phosphoric acid-chemical activation. Journal of Hazardous Materials, 182 (1-3), 217-224.

Full Text: 2010\J Haz Mat182, 217.pdf

Abstract: The preparation of activated carbon (AC) from cotton stalk was investigated in this paper. Orthogonal array experimental design method was used to optimize the preparation of AC using microwave assisted phosphoric acid. Optimized parameters were radiation power of 400 W, radiation time of 8 min, concentration of phosphoric acid of 50% by volume and impregnation time of 20 h. respectively. The surface characteristics of the AC prepared under optimized condition were examined by pore structure analysis, scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). Pore structure analysis shows that mecropores constitute more of the porosity of the prepared AC. Compared to cotton stalk, different functionalities and morphology on the carbon surfaces were formed in the prepared process. The adsorption capacity of the AC was also investigated by removing methylene blue (MB) in aqueous solution. The equilibrium data of the adsorption was well fitted to the Langmuir isotherm. The maximum adsorption capacity of MB on the prepared AC is 245.70 mg/g. The adsorption process follows the pseudo-second-order kinetic model. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Activated Carbon, Activation, Adsorption, Adsorption Capacity, Analysis, Aqueous Solution, Area, Capacity, Carbon, Characteristics, Concentration, Cotton Stalk, Data, Design, Electron Microscopy, Equilibrium, Experimental, Experimental Design, FT-IR, FTIR, H₃PO₄, Impregnation, Infrared Spectroscopy, Isotherm, Kinetic, Kinetic Model, Kinetics, Langmuir, Langmuir Isotherm, Mb, Methylene Blue, Microwave, Microwave Radiation, Model, Morphology, Optimization, Orthogonal Array Experimental Design, Phosphoric Acid, Pore, Porosity, Power, Preparation, Pseudo Second Order, Pseudo-Second-Order, Pseudo-Second-Order Kinetic Model, Radiation, Removal, Rights, Scanning Electron Microscopy, SEM, Solution, Spectroscopy, Structure, Surface, Surface-Chemistry, Surfaces, Volume, Waste

? Sangvanich, T., Sukwarotwat, V., Wiacek, R.J., Grudzien, R.M., Fryxell, G.E., Addleman, R.S., Timchalk, C. and Yantasee, W. (2010), Selective capture of cesium and thallium from natural waters and simulated wastes with copper ferrocyanide functionalized mesoporous silica. Journal of Hazardous Materials, 182 (1-3), 225-231.

Full Text: 2010\J Haz Mat182, 225.pdf

Abstract: Copper(II) ferrocyanide on mesoporous silica (FC-Cu-EDA-SAMMS (TM)) has been evaluated against iron(III) hexacyanoferrate(II) (insoluble Prussian Blue) for removing cesium (Cs+) and thallium (Tl+) from natural waters and simulated acidic and alkaline wastes. From pH 0.1-7.3, FC-Cu-EDA-SAMMS had greater affinities for Cs and Tl and was less affected by the solution pH, competing cations, and matrices. SAMMS also outperformed Prussian Blue in terms of adsorption capacities (e.g., 21.7 versus 2.6 mg Cs/g in acidic waste stimulant (pH 1.1), 28.3 versus 5.8 mg Tl/g in seawater), and rate (e.g., over 95 wt% of Cs was removed from seawater after 2 min with SAMMS, while only 75 wt% was removed with Prussian Blue). SAMMS also had higher stability (e.g., 2.5-13-fold less Fe dissolved from 2 to 24 h of contact time). In addition to environmental applications, SAMMS has great potential to be used as orally administered drug for limiting the absorption of radioactive Cs and toxic Tl in gastrointestinal tract. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Actinide Sequestration, Adsorption, Catalysts, Cesium, Contact Time, Copper, Copper(II), Ferrocyanide, Heavy-Metals, Mesoporous, Mesoporous Silica, pH, Prussian Blue, Removal, Self-Assembled Monolayers, Silica, Sorbents, Supports, Thallium

? Zhang, Z., Shen, Q.H., Cissoko, N., Wo, J.J. and Xu, X.H. (2010), Catalytic dechlorination of 2,4-dichlorophenol by Pd/Fe bimetallic nanoparticles in the presence of humic acid. Journal of Hazardous Materials, 182 (1-3), 252-258.

Full Text: 2010\J Haz Mat182, 252.pdf

Abstract: Pd/Fe bimetallic nanoparticles were synthesized for treatment of 2,4-dichlorophenol (2,4-DCP) in the presence of humic acid (HA), in order to understand their applicability for in situ remediation of ground-water. In this case, 2,4-DCP was catalytically dechlorinated to form the final products - phenol (P) via two intermediates, namely o-chlorophenol (o-CP) and p-chlorophenol (p-CP). We demonstrated that the carbon mass balances during the dechlorination were in the range of 82-91%, and other carbons were absorbed on the surface of Pd/Fe bimetallic nanoparticles. Our results suggest the dechlorination reaction of 2,4-DCP by Pd/Fe bimetallic nanoparticles in the presence of HA followed pseudo-first-order kinetics. HA competed for reaction sites on the Pd/Fe bimetallic nanoparticles with 2,4-DCP, and thus reduced the efficiency and rate of the dechlorination of 2,4-DCP. Efficiencies of dechlorination and phenol formations increased significantly as the Pd content increased from 0.10 wt.%, 0.15 wt.% to 0.20 wt.%, the removal percentage of 2,4-DCP increased from 70.4%, 98.4% to 99.4% within 300 min, respectively, the nitrate (NO3-) content in water also has a significant impact on 2,4-DCP dechlorination efficiency. Our results show that no other intermediates were generated besides Cl-, o-CP, p-CP and phenol during the catalytic dechlorination of 2,4-DCP. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: 2,4-DCP, Adsorption, Catalytic Reduction, Degradation, Humic Acid, Kinetics, Membrane, Nanoparticles, Nitrate, Nitrite, Particles, Pd, Fe Bimetal, Phenol, Preozonation, Reduction, Remediation, Removal, Treatment, Water, Zero-Valent Iron

? Castaldi, P., Silvetti, M., Garau, G. and Deiana, S. (2010), Influence of the pH on the accumulation of phosphate by red mud (a bauxite ore processing waste). Journal of Hazardous Materials, 182 (1-3), 266-272.

Full Text: 2010\J Haz Mat182, 266.pdf

Abstract: In the present work we investigated the interactions established between red mud (RM) and phosphate anions (P) at pH 4.0, 7.0 and 10.0. The amount of P sorbed by RM (P-RM) increased as the pH decreased being equal to 4.871 mmol g(-1) at pH 4.0, 0.924 mmol g(-1) at pH 7.0, and 0.266 mmol g(-1) at pH 10.0. Sequential extractions’ data of P-RM equilibrated at pH 4.0 and 7.0, suggested that the phosphate sorption at these pH values was mainly regulated by two different mechanisms that gave rise to a chemical adsorption on RM phases, and to the formation of metal phosphate precipitates. By contrast, at pH 10.0 the P-sorption was regulated by a chemisorption mechanism on Fe-Al phases of RM. These findings were supported by FT-IR analysis, which showed a broad band at 1114 and 1105 cm(-1) in P-RM spectra at pH 4.0 and 7.0 respectively, attributable to P-O(H) stretching nu(3)-modes associated to inner-sphere complexes of phosphate on Fe-Al phases, or alternatively to stretching vibrations of PO43- tetrahedra, arising from a precipitate of aluminium phosphate. Importantly, the FT-IR spectroscopy showed a phosphate-promoted dissolution of tectosilicates, notably cancrinite and sodalite, in RM exchanged with phosphate at pH 4.0 and 7.0. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Adsorption, Adsorption Isotherms, Aluminium, Analysis, Aqueous-Solution, Fly-Ash, FT-IR Spectroscopy, Goethite, Heavy-Metals, P-Sorption, pH, Phosphate, Red Mud, Removal, Sequential Extraction, Situ ATR-FTIR, Sorption, Spectroscopy, Surface, Water

? Astier, C., Chaleix, V., Faugeron, C., Ropartz, D., Gloaguen, V. and Krausz, P. (2010), Grafting of aminated oligogalacturonans onto Douglas fir barks. A new route for the enhancement of their Lead(II) binding capacities. Journal of Hazardous Materials, 182 (1-3), 279-285.

Full Text: 2010\J Haz Mat182, 279.pdf

Abstract: Chemical modification of Douglas fir bark and its subsequent utilization in adsorption of PbII from aqueous solutions was investigated. A new approach to enhance the natural properties of bark by covalent grafting of oligogalacturonans was developed. The polysaccharidic moiety of barks was functionalized by periodate oxidation and derivatized after reductive amination in presence of aminated oligogalacturonic acid. PbII adsorption isotherms of derivatized barks were then determined and compared with the capabilities of crude barks using the Langmuir adsorption model in terms of affinity (b) and maximum binding capacities (q(max)). Derivatization resulted in significant enhancements of the q(max) values (up to x8), along with little change of the affinity parameter. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Adsorption, Adsorption Isotherms, Aqueous Solutions, Biosorption, Biosorption, Chemical Modification, Coniferous Barks, Douglas FIR Barks, Grafting, Heavy-Metal Adsorption, Ions, Isotherms, Langmuir, Langmuir Isotherm, Lead, Oligosaccharides, Oxidation

? Zhao, Y.G., Shen, H.Y., Pan, S.D. and Hu, M.Q. (2010), Synthesis, characterization and properties of ethylenediamine-functionalized Fe₃O₄ magnetic polymers for removal of Cr(VI) in wastewater. Journal of Hazardous Materials, 182 (1-3), 295-302.

Full Text: 2010\J Haz Mat182, 295.pdf

Abstract: A series of ethylenediamine (EDA)-functionalized magnetic polymers (EDA-MPs) have been prepared via suspension polymerization with the usage amount of the functional monomer glycidylmethacrylate (GMA) varied during the suspension polymerization procedure. The EDA-MPs were characterized by transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), X-ray diffractometer (XRD), thermogravimetry and differential thermogravimetry analysis (TG-DTA), Fourier-transformed infrared spectroscopy (FTIR) and elementary analyzer (EA). The adsorption properties of the EDA-MPs for the removal of Cr(VI) in wastewater were deeply studied. The results showed the adsorption efficiency was highly pH dependent and decreased with the increasing of initial concentration of Cr(VI). The adsorption data taken at the optimized condition, i.e., 35ºC and pH of 2.5 were well fitted with the Langmuir isotherm. The maximum adsorption capacities (q(m)) of EDA-MPs to Cr(VI) were highly related to the contents of EDA-MPs, i.e., the q(m), of EDA-MPs to Cr(VI) calculated from the Langmuir isotherm increased from 32.15 to 61.35 mg g(-1) with the increasing of the usage amount of GMA. The adsorption kinetic data were modeled by the pseudo-second-order rate equation, and the adsorption of Cr(VI) by all the present EDA-MPs reached equilibrium in 60 min. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Adsorbent, Adsorption, Adsorption, Adsorption Capacities, Adsorption Kinetic, Adsorption Properties, Analysis, Aqueous-Solutions, Biosorption, Characterization, Chromium(VI), Concentration, Cr(VI), Data, Efficiency, Electron Microscopy, Equilibrium, Ethylenediamine, Ethylenediamine-Functionalized Magnetic Polymers (Eda-Mps), Fe₃O₄, FTIR, Functional Monomer, Fungal Biomass, Heavy-Metals, Hexavalent Chromium, Infrared Spectroscopy, Isotherm, Kinetic, Langmuir, Langmuir Isotherm, Magnetic, Magnetic Polymers, pH, pH-Dependent, Polymerization, Polymers, Procedure, Pseudo Second Order, Pseudo-Second-Order, Pseudo-Second-Order Rate, Recovery, Reduction, Removal, Rights, Selective Removal, Spectroscopy, Suspension, Synthesis, TEM, Thermogravimetry, Transmission, Wastewater, X-Ray, XRD

? Vaněk, A., Komárek, M., Chrastný, V., Bečka, D., Mihaljevič, M., Šebek, O., Panušková, G. and Schusterová, Z. (2010), Thallium uptake by white mustard (Sinapis alba L.) grown on moderately contaminated soils-Agro-environmental implications. Journal of Hazardous Materials,