adsorption from binary solutions

... ®nd out its As(III) and As(V) adsorption characteristics Batch experiments show that red mud is capable of removing arsenic from aqueous solutions As(III) and As(V) adsorptions are equilibrated ... JJ Removal of basic dye from e‚uent using wood as an adsorbent J WPCF 1978;50:926 [24] McKay G, Bino MJ, Altamemi AR The adsorption of various pollutants from aqueous solutions on to activated ... is favourably adsorbed in an acidic pH range The removal of such anionic pollutants from aqueous solutions by adsorption is highly dependent on pH of the media which a€ects the surface charge of...

Ngày tải lên: 13/07/2014, 06:20

... for removal of phosphates from aqueous solutions [7] Zakharova et al have reported the production of mixed aluminium-iron coagulant from red mud and spent pickling liquor from iron smelting plants ... investigations on red mud wasted from Guinean bauxite and its utilization for phosphate removal from aqueous solutions are discussed Experimental procedure Red mud was obtained from a bauxite ore refinery ... preliminary red mud treatment on the phosphate removal from aqueous model solutions are presented in Table The greatest removal for both types of solutions at the studied conditions was observed when...

Ngày tải lên: 23/09/2012, 14:47

... (2006) reported the adsorption of nickel on an adsorbent prepared from giant reed However, there are only a few studies regarding cadmium adsorption on charcoal prepared from giant reed with ... methanol adsorptions on the charcoals were measured using the quartz-balance adsorption measurement equipment (Fujii and Sakoda, 2008) The pore size distribution was estimated based on the methanol adsorption ... of the form of Cd on the charcoal Adsorption of Cadmium Two-hundred milliliters (for adsorption rate estimation; results are shown in Fig 2) or 100 mL (for adsorption capacity measurement; results...

Ngày tải lên: 05/09/2013, 10:15

... in the experimental practice of light scattering 1.2.1 Scattering from Dilute Solutions of Very Small Particles For very dilute solutions of small scattering particles (for example nanoparticles ... 3-540-61689-6 (hardcover) ISBN: 3-540-65551-4 (softcover) Wolfgang Schärtl Light Scattering from Polymer Solutions and Nanoparticle Dispersions With 95 Figures and 16 Tables 123 Wolfgang Schärtl ... particles, as illustrated in Fig 1.3 Fig 1.2 Interference pattern of light scattered from small particles (left) and from larger particles (right) For simplification, only two scattering centers are...

Ngày tải lên: 04/06/2014, 15:18

... i.e., batch adsorption and filtration of individual Hg(II) and HA solutions; sequential adsorption and filtration of individual Hg(II) and HA solutions; co -adsorption and co-filtration of solutions ... Results of sequential adsorption (a) Hg(II) (800µg/L) adsorption on CS/CA-TPPS-HA membrane; and (b) HA (15mg/L) adsorption on CS/CA-TPPS-Hg membrane in solutions with initial pH from 6.5 to 8.5 (22-23 ... color change of the membrane after 20min contact time; (b) Hg(II) adsorption uptakes from solutions with initial pH ranging from to (22-23 , initial Hg concentration 200µg/L, 100mL of solution...

Ngày tải lên: 09/09/2015, 17:52

... ions or molecules from the surrounding solutions) , thereby giving rise to high adsorption capacities and fast kinetics To fully separate them from treated effluents or waste solutions for regeneration ... 126 4.3.2 Adsorption Mechanisms: Coordinative Binding and Anion-Exchange 134 4.3.3 Pd(II) Adsorption Kinetics 146 4.3.4 Recovery of Pd(II) 147 4.4 Conclusion 150 CHAPTER –MODELING OF ADSORPTION ... were accessible to ions, ionic complexes and molecules from the surrounding solution, which contributed to enhanced adsorption capacity Both adsorption isotherm and kinetic studies demonstrated...

Ngày tải lên: 10/09/2015, 15:54

... adsorbent on adsorption through the coefficient α 2.2.5 Kinetic models of adsorption The kinetics of adsorption is a critical factor in the design of the adsorption system 23 Information on the adsorption ... ion adsorption performance It was found that PGMA-DETA achieved excellent Cu ion adsorption performance at higher pH values in the pH range of 1-6, with high adsorption capacities and fast adsorption ... metal species exists in the solutions) and binary systems (both metal species exist in the solutions) FTIR and XPS analyses will be used to characterize the selective adsorption behaviors and mechanisms...

Ngày tải lên: 14/09/2015, 08:48

... phenomenon, and the adsorption or reduction process may not be the removal mechanism for Cr(III) ions or salts from the aqueous solution Apart from the adsorption of Cr(VI) ions, Ulva showed adsorption ... isotherm for adsorption of Cr(VI) and Cr(III) ions from aqueous solution by seaweeds 41 Percentage adsorption of Cr(VI) and Cr(III)ions by chemically modified biomass of Sargassum and Ulva 43 Adsorption ... Reduction /Adsorption of Cr(VI)ions by Tea dust 67 Figure 4.30 Kinetic study for the Reduction /Adsorption of Cr(VI)ions by Coffee dust 68 Figure 4.31 Adsorption Isotherm for Cr(VI) adsorption...

Ngày tải lên: 15/09/2015, 22:51

... acetonitrile from aqueous solutions to circumvent possible future supply disruption from interfering with essential industrial and laboratory work The separation of acetonitrile from aqueous solutions ... and -97 13 Fig Simulated ACN Adsorption Isotherms at 298K 21 Fig Simulated ACN Adsorption Isotherms at 298K for RHO-type ZIFs 23 Fig ZIF Isosteric Heats of Adsorption for ACN at infinite ... ZIF-97 31 Fig Simulated Water Adsorption Isotherms at 298 K 32 Fig 10 Density Contours of Water in ZIF-8and ZIF-97 33 Fig 11 Adsorption Isotherms of Binary Solution in ZIF-8, -10, -25,...

Ngày tải lên: 30/09/2015, 10:13

... Technol, Ranganathan, solutions Yamuna, solutions aqueous Pertanika and aqueous Namasivayam, from C waste Gayathri, of dyes orange of congo red pith banana (1993) K., Rani, M from aqueous peel Biores ... Hence the was determined from absorbance adjusting final pH to 7.3 cent adsorption experiments evaluating removal, follows: time After supernatant adsorbent samples varied from no change the data ... taken from and batch of agitation dose in absorbance removal and adsorbent desorption adsorption of 10 mg/L greater Several dye time, on per cent respectively Batch solution was upon of dye solutions...

Ngày tải lên: 23/09/2012, 14:47

... of Vietnam energy development support joint stock company from 2009 to 2011 Problems and solutions as the subject of this report Apart from the introduction and conclusion, the final report is ... SITUATION OF IMPORT ACTIVITIES OF VIETNAM ENERGY DEVELOPMENT SUPPORT JOINT STOCK COMPANY FROM 2009 TO 2011 PROBLEMS AND SOLUTIONS Supervisor: LE THI THU HA Võ Thị Khánh Chi – CQ503823 – Business English ... situation of import activities of Vietnam energy development support joint stock Company from 2009 to 2011 Problems and solutions Võ Thị Khánh Chi – CQ503823 – Business English 50B Purpose and Scope...

Ngày tải lên: 24/07/2013, 09:11

... the process kinetics of adsorption From equation (1), the use of n=1 from calculation and the assumption in section 3.1 (adsorption equilibrium), gives the overall rate of adsorption/ de-sorption ... groundwater are shown in Table as referred from previous work (Lien et al., 2005) Arsenic stock solution The stock solutions of As(III) were prepared from As(III) standard solution of 1003mg/L ... Non-linear plot for adsorption isotherms for AC-Fe, particle size 0.45-0.71mm, CA,0 1.11 - 8.60mg/L, dose 5g/L, pH of synthetic groundwater (pH8.18) Adsorption kinetics Two most popular adsorption kinetic...

Ngày tải lên: 05/09/2013, 09:38

... spread Adsorption isotherm The distribution of arsenic between the liquid phase and the solid phase at equilibrium of the adsorption process can be described by the adsorption isotherm Several adsorption ... 230 1200 370 135 (* These chemicals are from Wako Pure Chemicals Ltd, Japan) Arsenic stock solution The stock solutions of arsenite (As[III]) were prepared from As[III] standard solution of 1003 ... commonly used adsorption isotherms: Langmuir, Freundlich, LangmuirFreundlich, and the comparison of the isotherm coefficients from both linear and nonlinear regression methods were examined Adsorption...

Ngày tải lên: 05/09/2013, 09:38

... suffer from anxiety and depression; over 21 million to suffer from alcohol use disorders; over million from Alzheimer’s disease and other dementias; about million from schizophrenia; million from ... facing the challenges, building solutions Report from the WHO European Ministerial Conference Mental health: facing the challenges, building solutions Report from the WHO European Ministerial ... psychiatrists ranges from 1.8 to 25 per 100 000 population; • the number of psychiatric nurses ranges from to 104 per 100 000 population; • the number of psychologists ranges from 0.1 to 96 per...

Ngày tải lên: 06/03/2014, 02:20

... Premature deaths from short-term exposures; generally restricted to deaths from non-traumatic causes (i.e excludes suicide and deaths from injuries) Number of people who die prematurely from chronic ... residents die prematurely each year from exposure to outdoor air pollution in the city Air Pollution Illnesses from Traffic Health Effects of Air Pollution from Traffic: A Review of the Scientific ... pollutants that people are exposed to that arise from various sources including those specifically from traffic Unlike measurements taken directly from monitoring stations, these models are mathematical...

Ngày tải lên: 06/03/2014, 16:20

... Complete solutions from a single source minimize the time required for process integration and strengthen investment security The speed of implementation of new process and sys- Complete solutions from ... ethanol from molasses • Potato starch, pulp, gratings and protein • Extraction of ethanol from biomasses, • Rice starch e. g such as yeast or cellulose • Pea starch • Proteins (e. g from soy), ... materials from been developing successful solutions for the sustain- production flows and sewage sludge able use of precious resources: over 3500 stationary • Stationary or mobile solutions and...

Ngày tải lên: 18/03/2014, 02:20

... customized solutions from banknotes to cigarette papers Special Issue Specialty Papers 44  aper for flavor: The effect of three P Wet laid nonwovens 38 Wet laid nonwovens technology – from the ... banknote is sometimes very short Like the famous Thaler coins, it travels from one hand to another, transforming in the process from a clean note to a wrinkled, dirty scrap of paper There is a new ... present two exciting application well-distributed The stock consisten- examples from Voith Paper in the area cies are from 0.1 to 0.8 g/l For com- of wet laid nonwovens technology Typical HydroFormer...

Ngày tải lên: 18/03/2014, 02:20

... DEPARTMENT - GRADUATION PAFER THE DIFFICULTIES AND SUGGESTED SOLUTIONS IN TRANSLATING TOURISM TERMS FROM ENGLISH INTO VIETNAMESE By: Nguyễn Thị Biên Class: NA1201 Supervisor: Phạm ... Đại Học Dân Lập Hải Phòng Nội dung hướng dẫn: The difficulties and suggested solutions in translating tourism terms from English into Vietnamese Người hướng dẫn thứ hai: Họ tên: Học ... details within my Graduation Paper, which is “The difficulties and suggested solutions in translating tourism terms from English into Vietnamese” Aims of the study The primary aim of the Graduation...

Ngày tải lên: 19/03/2014, 17:10

... / VNU Journal of Science, Foreign Languages 25 (2009) 61-66 writing skill It is hoped that the solutions provided in this article will be of use for later improvements in the teaching and learning ... Grabe and Kaplan [5] also emphasize that only teachers who understand theory and make a transition from theory to practice can make the most appropriate decisions for a successful and meaningful ... above-mentioned guidelines could be seen as having laid the foundation for the following suggested solutions 2.1 How to Make EFL Students Aware of Why They Should Write in English As Ur [7] puts...

Ngày tải lên: 22/03/2014, 10:20

... from binary (base 2) to decimal (base 10) Value 128 64 32 16 Binary 3-Dec-09 quangkien@gmail.com 13 13 Answer l Convert 10010101 from binary (base 2) to decimal (base 10) Value 128 64 32 16 Binary ... Convert 248 from decimal to binary Check your answer Value Binary 128 64 32 16 Check 3-Dec-09 quangkien@gmail.com 25 25 Answer l l Convert 248 from decimal to binary Check your answer Value Binary ... quangkien@gmail.com 9 Convert binary to decimal Value 128 64 32 16 Binary Convert 11001010 binary to decimal Write in the binary digits under their values 3-Dec-09 quangkien@gmail.com 10 10 Convert binary to decimal...

Ngày tải lên: 24/03/2014, 11:20