Colour removal from textile effluents by adsorption techniques

Colour removal from textile effluents by adsorption techniques

Colour removal from textile effluents by adsorption techniques
... transfer processes during colour removal from effluents using adsorption techniques Ph.D thesis, The Queen's University of Belfast, Belfast, U.K McKay G (1981) Design models for adsorption system in ... influenced by the degree of agitation and the uptake increases with stirring rate The mechanism of colour removal from effluent involved four steps: (i) migration of dye molecules from the bulk ... rate of dye adsorption increased with increasing maize cob mass; the results are shown in Fig as a plot of (Ct/Co) against time for the adsorption of Erionyl Red on maize cob Rate of dye adsorption...
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Arsenic removal from aqueous solutions by adsorption on red mud pps

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 ... e€ect of red mud dosage on the removal of arsenic The arsenic removal eciency is increased with the amount of red mud Final arsenic concentrations and removal eciencies were also calculated from...
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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon

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...
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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon

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...
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Humic acid removal from aqeous solution by hybrid eletrodialysis ion exchange

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...
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Removal of congo red from wastewater by adsorption onto waste red mud

Removal of congo red from wastewater by adsorption onto waste red mud
... Namasivayam, and C and Technol., by by solutions K of waste congo slurry red J 53 : 153 - 157 (1992) N Removal waste : 32 - 42 N Removal celluosic Removal biogas by Technol Muniasamy, (1996) T ... Prot R wastewater and by hydroxide Yamuna, R adsorption Waste T on Dye waste Management, : 14 (1994) S., Prasad, G and chrome dye from aqueous : ash fly by : Indian - Jeyakumar, removal red Adsorption ... removal The be from effectively of congo adsorption isotherms byproduct, a bauxite used as adsorbent for red from wastewaters followed The an processing both Langmuir Langmuir adsorption and...
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Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)

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...
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Tài liệu Báo cáo "Arsenic removal from water by magnetic Fe1-xCoxFe2O4 and Fe1-yNiyFe2O4 nanoparticles " pptx

Tài liệu Báo cáo
... 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...
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Báo cáo "Reseach on the removal of hexavalent chromium from aqueous solution by iron nanoparticles " doc

Báo cáo
... 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...
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Carbon dioxide capture from flue gas by vacuum swing adsorption

Carbon dioxide capture from flue gas by vacuum swing adsorption
... CO2 capture from wet flue gas by VSA 97 6.1 Modeling of the VSA cycles for CO2 capture from wet flue gas 97 6.2 Optimization of the 4-step VSA cycle with LPP for CO2 capture from ... adsorption PTSA Pressure-temperature swing adsorption PVSA Pressure -vacuum swing adsorption SLPM Standard litres per minute TSA Temperature swing adsorption VSA Vacuum swing adsorption xvii Variables A ... briefly 2.1 Adsorption based cycles for CO2 capture from flue gas Adsorption processes are broadly divided into pressure and temperature swing adsorption processes In a temperature adsorption swing...
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Phosphate removal from aqueous solutions using red mud wasted in bauxite Bayer's process

Phosphate removal from aqueous solutions using red mud wasted in bauxite Bayer's process
... 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 in Guinea ... 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 ... of red mud and OPh-solution and PO3 removal( •-raw red mud, ~-activated red mud) (30 rain for raw mud and 15 for activated red mud) The same tendency was more clearly illustrated with TPPs-solutions...
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Immobilization of heavy metals in sediment dredged from a seaport by iron bearing materials

Immobilization of heavy metals in sediment dredged from a seaport by iron bearing materials
... economics had manual incinerator In other hospitals, the manual incinerator is burned and leaves an uncomfortable smell According to the “Regulation of medical waste management” of the Ministry of Public ... regulations There have been many sanitation workers dumping waste bags to roadsides In particular, Hanoi has thousands of medical stations, making up about 2% of total wastes Only 60 hospitals and ... Public Health, medical waste must be treated immediately at once, contained in bag or barrel according to color and standard In fact, in most hospitals, especially in private medical stations,...
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Resource Recovery from Excess Sludge by Subcritical Water Process with Magnesium Ammonium Phosphate Process

Resource Recovery from Excess Sludge by Subcritical Water Process with Magnesium Ammonium Phosphate Process
... treatment process Excess Sludge Sludge solubilization by subcritical water Influent Subcritical water process Phosphate recovery on crystallization MAP process Solubilized sludge MAP recovery ... solubilized sludge Outline of MAP process In this study, MAP (magnesium ammonium phosphate) process was used for the recovery of phosphate as orthophosphoric acid, and ammonia nitrogen This process ... (crystallized phosphate; MAP), and (3) phosphate unrecovered (soluble phosphate in the effluent) Subcritical water process Phosphorus solubilized from sludge Solids-liquid separation by filter Phosphorus...
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Treatment of Textile Wastewater by a Coupling of Activated Sludge Process with Membrane Separation

Treatment of Textile Wastewater by a Coupling of Activated Sludge Process with Membrane Separation
... tank and a microfiltration membrane as separation apparatus The aeration tank was made from Plexiglas with a working volume of liters Air was supplied to the aeration tank through diffusers at a ... quality, and kinetic parameters were also investigated PERMEATE COMPRESSED AIR INFLUENT AIR SLUDGE WASTE Fig Schematic Diagram of the Coupling of Activated Sludge Process and Membrane Separation ... Reactor Operation The sludge from activated sludge process was acclimatized by the textile wastewater in an aerobic batch tank without the membrane filtration unit Necessary amount of nitrogen and phosphorous...
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