Humic acid removal from aqeous solution by hybrid eletrodialysis ion exchange
Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon
... 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 study Langmuir, Langmuir-Freundlich isotherms and pseudosecond order ... AC, LA, and AC-Fe and Figure illustrates the comparison of LA-AC and LA-AC-Fe These figures indicated that the combination of LA and AC-Fe is the most feasible - 50 - Journal of Water and Environment...
- 12
- 529
- 0
Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon
... 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 arsenic removal using iron-based adsorbent ... adsorbents are used Studies on the removal of arsenic from groundwater using rice husk (an agricultural waste which is a byproduct in rice milling) have been carried out by some researchers Amin et...
- 14
- 541
- 0
Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)
... 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, time courses of cadmium concentration in aqueous solution ... regarding cadmium adsorption on charcoal prepared from giant reed with simple methods In this study, to estimate the ability of a simple carbonization process, charcoals were prepared from the stalk of...
- 8
- 512
- 0
Tài liệu Báo cáo "Arsenic removal from water by magnetic Fe1-xCoxFe2O4 and Fe1-yNiyFe2O4 nanoparticles " pptx
... 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 size of 15 nm were prepared by conventional ... Fe1−xNixO.Fe2O3 and Fe1−yCoy.Fe2O3 with x = 0.05, 0.1, 0.2, 0.5 and y = 0.2, 0.4 nanoparticles were made by replacing Fe2+ by Ni2+ and Co2+ using NiCl2.6H2O and CoCl2.6H2O, respectively All procedures were...
- 5
- 374
- 0
Báo cáo "Reseach on the removal of hexavalent chromium from aqueous solution by iron nanoparticles " doc
... 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, Cr(VI) concentration = 2.0mg/l, iron powder ... Deionized water was used for preparing all solutions - The Fe0 nanoparticles were synthesized before use The Fe0 nanoparticles were synthesized by dropwise addition of NaBH4 aqueous solution...
- 5
- 365
- 0
Báo cáo " Hazard removal solution by synchronization " pdf
... 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 manipulations ... gathered over 30 minutes The normal delay from the Clock to Q is 13 ns as indicated by the dotted line But by carefully controlling the timing of the changes in D and the Clock, the flip-flop...
- 6
- 180
- 0
Báo cáo khoa học: b-Amyloid protein oligomers induced by metal ions and acid pH are distinct from those generated by slow spontaneous ageing at neutral pH docx
... 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 15 and 120 h in phosphate buffer ... which is inhibited at pH 5.0 or by metal ions, slowly generates stable species that can be measured by PAGE The other pathway generates unstable species that rapidly disaggregate and therefore cannot...
- 12
- 439
- 0
removal of basic blue 159 from aqueous solution using
... 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 N 700nm CAS Number 105953-73-9 N N ... groups concentration of an unknown solution For each have negative charge where can be good sites for adsorption process, the absorbance of dye solution adsorption of Basic Blue 159 2500 2000 1500...
- 12
- 528
- 0
Báo cáo toán học: " decarboxylation catalyzed by phenolic acid decarboxylase from Candida guilliermondii" potx
... 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 Chen2, Masamichi ... FDC1 proteins from Saccharomyces cerevisiae with less than 14% identity The C guilliermondii phenolic acid decarboxylase converted the main substrates ferulic acid and p-coumaric acid to the respective...
- 44
- 233
- 0
báo cáo hóa học:" An endogenous factor enhances ferulic acid decarboxylation catalyzed by phenolic acid decarboxylase from Candida guilliermondii" potx
... 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), and/or caffeic acid ... p-coumaric acid decarboxylase, Candida guilliermondii, activator Introduction Ferulic acid (FA), a derivative of 4-hydroxycinnamic acid, is found in cell walls primarily as an ester linked to lignin and...
- 44
- 261
- 0
Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution
... 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 various amount of Cr(VI) The pH value X-ray ... Characterization of magnetic chitosan nanoparticles TEM and SEM micrograph of magnetic chitosan particles provides information on their size and morphology It can be observed from Fig that the magnetic...
- 5
- 349
- 1
Preparation of chitosan magnetite composite beads and their application for removal of Pb(II) and Ni(II) from aqueous solution
... 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 Morphology and particles of chitosan/ magnetite composite beads ... hydroxide solution and Br2 solution After the formation of the Ni(II)- dimetyl glyoxim complex, the concentration of Ni(II) ions was determined from the absorbance at 475 nm The amount of Pb(II) and Ni(II)...
- 7
- 558
- 0
Arsenic removal from aqueous solutions by adsorption on red mud pps
... 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 and utilizing the liquid phase of red mud ... eect of red mud dosage on the removal of arsenic The arsenic removal eciency is increased with the amount of red mud Final arsenic concentrations and removal eciencies were also calculated from...
- 7
- 313
- 0
Enhancing humic acid removal using surface modified granular media
... 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 adhesives = 1727 cm-1 ! $)! ... RF -modified adhesive specimens after the micro-tensile strength testing of the immediate (A) and the 9months stored specimens (B) in artificial saliva ! $&! Fig 30 Representative fracture surfaces...
- 191
- 175
- 0
Humic acid removal from aqeous solution by hybrid eletrodialysis ion exchange
... 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 that the ion exchange resin ... flow rate of HA solution, the HA concentration, the pH of HA solution, the ionic strength of HA solution and the Cu2+ concentration in HA solution Higher voltage leads to a higher HA removal Lower...
- 138
- 313
- 0
Từ khóa: mining parenthetical translations from the web by word alignmentinvaders from the infinite by john wood campbellhàm lượng của mobile humic acid mha và humate cancium của chất hữu cơ trong các hệ thống luân canh và chuyên canh lúa tại cây lậy tiền giang vĩnh ngươn an giang đbsclproduction of methanol from biomass waste by pyrolysisthe power of reading insights from the research by stephen d krashenthe power of reading insights from the research by stephen krashenaverage health literacy scores of adults who got information about health issues from the internet by gender 2003average health literacy scores of adults who got information about health issues from the internet by race ethnicity 2003average health literacy scores of adults who got information about health issues from the internet by age 2003average health literacy scores of adults who got information about health issues from the internet by highest educational attainment 2003a homemade solution by alojz simicak and michal zajacusers or the number of production units expected to be obtained from the asset by one or more usersmôi trường hv humic acid vitamin agargipl and tc52 from t cruzi by tlr2polyhydroxyalkanoate pha production from carbon dioxide by recombinant cyanobacteriaNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngchuyên đề điện xoay chiều theo dạngMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDENghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Định tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Thiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíChuong 2 nhận dạng rui roTổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Kiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtMÔN TRUYỀN THÔNG MARKETING TÍCH HỢPTÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ