Humic acid removal from aqeous solution by hybrid eletrodialysis ion exchange

... removal of arsenic from synthetic groundwater using sequential combination of LA and AC-Fe as adsorbents The effect of LA/AC-Fe ratio, flow rate, initial arsenic concentration and pH to the breakthrough ... (70%AsIII&30%AsV) CONCLUSION The removal of arsenic from synthetic groundwater by adsorption using LA and AC-Fe was investigated in this...

Ngày tải lên: 05/09/2013, 09:38

... adsorbent - iron-modified rice husk carbon (RH-Fe)which was prepared from an available, cheap source of carbon (rice husk carbon) and the most effective agent (iron) for the removal of both As[III] ... very few studies on iron-modified rice husk carbon as adsorbent for the removal of arsenic from drinking water, although there are many research papers on...

Ngày tải lên: 05/09/2013, 09:38

... aqueous solutions by the charcoals prepared from the stalk of giant reed was investigated based on the beneficial utilization of giant reed As a result, its high removal capacity was confirmed The cadmium ... 3.1 Journal of Water and Environment Technology, Vol 8, No.4, 2010 Removal of cadmium from aqueous solutions For estimating the removal rate,...

Ngày tải lên: 05/09/2013, 10:15

... formed and isolated from the solvent by magnetic decantation Water washing and decantation process were repeated four times to remove excess solution By a similar way, Fe1−xNixO.Fe2O3 and Fe1−yCoy.Fe2O3 ... ability of Fe1-xCoxFe2O4 (Co-ferrites) and Fe1-yNiyFe2O4 (Niferrites) (x, y = 0, 0.05, 0.1, 0.2, 0.5) nanoparticles Materials and methods Magnetite particles with...

Ngày tải lên: 13/02/2014, 03:20

... removed by iron nanoparticals, while only 24.75% Cr(VI) concentration was removed by iron powder Conclusion The removal of Cr(VI) by Fe0 nanoparticles was studied, the concentration of Fe0 nanoparticles ... minutes, then slow down afterwards 3.5 Comparison of the effectiveness of Cr(VI) reduction by nanoiron and power iron Experimental conditions: pH = 4-5, C...

Ngày tải lên: 14/03/2014, 10:20

... Fig Example Circuit for Illustration of Synchronization So a solution is needed to prevent these failures that is independent of these parameters Such a solution is the use of a synchronizing ... circuits such as series circuits and GALS circuits, it is possible to remove errors, glitches and hazards by synchronization of asynchronous signals and synchronous signals using circuit ma...

Ngày tải lên: 14/03/2014, 13:20

... aged at pH 5.0 at both time points These results indicate that Ab1–40 oligomers generated at pH 7.4 are more toxic to VSMCs than those generated at pH 5.0 Discussion This study demonstrates that ... sodium phosphate buffer in microtitre plate wells Absorbance was monitored at Fig AFM images of aggregates and fibrils of Ab1–40 on HOPG substrate after incubation at...

Ngày tải lên: 31/03/2014, 07:20

... capacity of some of BB159 from aqueous solution onto banana peel specific solutes through ionic interactions Natural as a low cost adsorbent Basic Blue1 59 (BB 159) sorbents have been obtained from ... Res., 7, 4, 51-62 (2013) 53 Table Charactristics of Basic Blue 159 Name and color index(C.I) structure commercial name Basic Blue 159 max(nm) Astrazon Blue FBL N...

Ngày tải lên: 06/05/2014, 09:02

... Keywords: phenolic acid decarboxylase, ferulic acid decarboxylase, p-coumaric acid decarboxylase, Candida guilliermondii, activator Introduction Ferulic acid (FA), a derivative of 4-hydroxycinnamic acid, ... An endogenous factor enhances ferulic acid decarboxylation catalyzed by phenolic acid decarboxylase from Candida guilliermondii Hui-Kai Huang1, Li-Fan Ch...

Ngày tải lên: 20/06/2014, 21:20

... An endogenous factor enhances ferulic acid decarboxylation catalyzed by phenolic acid decarboxylase from Candida guilliermondii Hui-Kai Huang1, Li-Fan Chen2, Masamichi Tokashiki2, ... leaves and seeds of plants such as in rice, wheat, and oat (Mathew and Abraham 2004) Bacterial phenolic acid decarboxylases (PADs), which decarboxylate FA, p-coumaric acid (PCA)...

Ngày tải lên: 21/06/2014, 17:20

... and the Cr(VI) concentrations at any time t, respectively; V (L) is the volume of the Cr(VI) solution; and m (g) is the mass of the magnetic chitosan nanoparticles Samples of the Cr(VI) solution ... sorption experiments were performed by batch method Samples of 0.1 g of magnetic chitosan nanoparticles were equilibrated with 50 mL of solution containing vario...

Ngày tải lên: 02/07/2014, 14:14

... magnets The synthetic procedure of composite beads was schematically presented in Fig 3.2 Application of chitosan/ magnetite composite beads for removal Ni(II) and Pb(II) in solution 3.2.1 Isotherm adsorption ... lines of composite patterns indicated that Results and discussion 3.1 Characterization of chitosan/ magnetite composite beads 3.1.1 Morpho...

Ngày tải lên: 02/07/2014, 14:14

... solution These stock solutions were used to prepare experimental solutions of speci®ed concentrations One gram of red mud powder was placed in a conical ¯ask Solutions containing 125 to 1500 mg arsenic ... solution may be utilized for arsenic removal by coagulation Forthcoming studies based on developing the arsenic adsorption capacity of red mud by activation an...

Ngày tải lên: 13/07/2014, 06:20

... micro-tensile bond strength (!TBS) test and SEM analysis (A) Removal of occlusal surface to expose the flat dentin surface; (B) preparation of the dentin surface to receive adhesive with or without RF; (C) ... cm-1;(A) control=1717 cm-1, (B) 1%RF -modified adhesive=1711 cm1 , (C) 3%RF -modified adhesives=1710 cm-1, (D) 5%RF -modified adhesives =1713 cm-1 and (E) 10%RF -modified adh...

Ngày tải lên: 05/10/2015, 21:24

... applicability of hybrid electrodialysis /ion exchange in removing humic acid (HA) from aqueous solutions Experiments for different combinations of ion exchange membrane and ion exchange resin were ... Co-ions Cation exchange resin (-) Cations (+) Anions (-) Anion exchange resin (+) Anions (-) Cations (+) An ion exchange process can be described as a reaction Suppose...

Ngày tải lên: 22/10/2015, 21:14