efficiency of oil displacement by water

... decolorizing efficiency by digested sludge The potential of digested sludge on MO and RB4 tested by variation of dye concentration was shown by the different extent of decolorizing efficiency of the ... experiments - 10 - Journal of Water and Environment Technology, Vol 6, No.1, 2008 Dye decolorization Dye decolorizing efficiency by digested sludge To reveal the decolorizing efficiency of digested sludge ... waste -water containing RB4 was in light yellow occurred by presenting of unsubstituted antraquinone as its reduced form (Figure 9) The reduction of anthraquinone dye takes place by mechanism of...

Ngày tải lên: 05/09/2013, 09:38

... microfiltration of a feed of 1000 ppm of oil in water (right) Figure 5.8-1 Filtrate quality in ppm residual oil content for tangential flow microfiltration experiments with (a) tap water; (b) oil- water ... feed of 1000 ppm oil concentration (0.5 μm ceramic microfiltration membrane) xi Figure 5.8-2 Oil rejection efficiency (0.5 μm ceramic microfiltration membrane, oilwater feed of 1000 ppm oil concentration, ... membrane, oil- water feed of 500 ppm oil concentration, Experiment 2, Appendix D.2) Figure 5.4-8 The effects of fouling on permeability (0.5 μm ceramic microfiltration membrane, oil- water feed of 500...

Ngày tải lên: 09/09/2015, 11:25

Ngày tải lên: 08/08/2012, 17:20

... promote the role of leader as well as define the effect of human resource in applying these standard In term of practical aspect, it studies real situation of maintaining the efficiency of the quality ... eight principles of quality management can help Viet A plastic and composite company take advantages of the experience of the leading top managers as well as improve efficiency of the quality management ... 2008 The profit of the company also increased Profit in 2008 increased 11.3 % compared with 2007 while profit in 2009 just increased 7.8% compared with 2008 Although the annual revenue of Viet A...

Ngày tải lên: 18/04/2013, 17:09

... evaluating the performance of treatment processes, Proceeding of 2002 IWA World Water Congress, e20217a Kamata M., Evaluation of estrogenic activity of natural water by Yeast two-hybrid system, ... downstream of Busan area of Nakdong river basin Estrogenic activity and concentration of estrogenic substances in the Nakdong River basin Relative estrogenic activity of the main and branch stream of ... in each process of water treatment plants All samples were condensed up to 50,000 times - 206 - Journal of Water and Environment Technology, Vol.1, No.2, 2003 Table Concentration of estrogenic...

Ngày tải lên: 05/09/2013, 08:40

... suggested that inactivation of Escherichia coli in sterile distilled water and coliform bacteria in water prior to treatment at a municipal water filtering plant (untreated water) by the SC-CO2 treatment ... means with standard errors of the results of triplicate experiments RESULTS AND DISCUSSION Inactivation of microorganisms in untreated water by SC-CO2 treatment The effect of CO2/sample flow rate ... found that a possible leakage of cytoplasm was caused by the modification of the cell membrane of L plantarum by pressurized CO2 In our present results, the leakage of cytoplasm could not be confirmed,...

Ngày tải lên: 05/09/2013, 09:38

... principal water source (m) Hours a day of water availability Fraction of year with adequate water Household water consumption (L/day) Fraction of households boiling water before consumption Fraction of ... characteristics Number of beds Fraction of clinics with electricity Fraction of clinics with sanitation facilities Fraction of clinics with water Number of patient rooms Index of availability of medical ... here, regressions of the difference between 1997 and 1993 in availability of piped water, adequacy of water throughout the day and year, distance to water supply, and adequacy of sanitation facilities...

Ngày tải lên: 22/03/2014, 15:20

... because of the lack of available data on the boiling points of solutions of calcium chloride in glacial acetic acid CONCLUSIONS The results confirm the observation of Quartaroli (9) that the by the ... ratio of the viscosity of one portion of a cellulose acetate washed with water containing a certain salt to the viscosity of a second portion of the same acetate washed with salt-free water or ... nature of the salt; amount of salt; pH of the solution from which the salt is applied; solvent for the cellulose acetate in solution; degree of hydrolysis of cellulose acetate; and the amounts of...

Ngày tải lên: 05/05/2014, 08:42

... the technical efficiency and socioeconomic factors contributing to production efficiency of coffee The overall objective of this study was to estimate the technical efficiency of coffee production ... the level of technical inefficiency of small holder coffee farmers in the Krong Ana Watershed of Dak Lak province The specific objectives were to (i) identify the factors affecting coffee production, ... objective of the study is to estimate the technical efficiency of coffee farming and to evaluate factors affecting the technical inefficiency in small holder coffee farms in the Krong Ana Watershed,...

Ngày tải lên: 12/06/2014, 15:01

... cavity of the virus Axial modes produce displacements of the atoms that are parallel to the axis of the virus and hence should not interact strongly with water The motion relative to water of the ... virus by an angle θ produces a modulation of the displacement by cos(θ) (or sin(θ), as it is doubly degenerate) The mode pattern for one plane of atoms in a plane of the virus is similar to that of ... corresponds to background signal due to the imperfection of rejection of elastic scattering of light by spectrometer with kz ≈ The displacement vectors of the vibrational modes are then u (r, θ) with...

Ngày tải lên: 20/06/2014, 02:20

... performance of QD LEDs Figure The IQEs of the samples obtained by temperaturedependent PL measurements be observed On the contrary, reduction in either of these two factors will lead to improvement of ... GaN QDs have been obviously improved by controlling the strain status of the underneath AlN layer Experiments In order to improve the emission efficiency of GaN/AlN QDs, we propose a novel epitaxial ... layer Table summarizes the structural parameters of the samples One set of samples Page of emits violet light (around 400 nm), while the other set of samples grown under higher substrate temperature...

Ngày tải lên: 20/06/2014, 23:20

... 14}-specific coalescence of the nanoparticles The formation of {11" and {10" surfaces of calcite was 20} 14} apparently affected by the MWT In fact, the cation–anion mixed {11" surface of calcite (see ... interaction of water and calcite [32] However, it is not clear whether water ordering near the reconstructed calcite surfaces, as indicated by the molecular dynamics simulation results of calcite ... crystalline domains (i.e vaterite), one of which is selectively stabilized by the template.) The presence of Na? and Cl- could also facilitate the formation of calcite Nanoscale Res Lett (2010)...

Ngày tải lên: 21/06/2014, 08:20

... paid to amining the effects of mycorrhizas exon water- use efficiency (WUE = ratio of CO assimilation to transpiration) of host plants, yet WUE constitutes a major aspect of plant growth limitation ... time of year provide an estimation of the physiological status of the plant just prior to planting-out (Guehl et al, 1989) All the plants of the different treatments were dormant at the period of ... ADC-225 MK3 IRGA, alternately for periods of for the chambers by means of an automated switching system The dewpoint of the airs entering the chambers and of the different airs leaving the chambers...

Ngày tải lên: 09/08/2014, 03:24

... reduced (Figs 1, 2) The degree of reduction depended pri- upon intensity of water stress but also modified by water vapor saturation deficit (WSD) and the level of the turgor loss point (Figs ... under conditions of good water supply, Douglas fir had a higher water- use efficiency than Norway spruce; 2) turgor loss point values for mature Douglas fir twigs were lower than those of spruce, ) ... those of spruce, ) (Fig.1) thus Water- use efficiency was greater for both species under conditions of limited water supply, indicating different kinetics for C0 and water vapor diffusion or sto2...

Ngày tải lên: 09/08/2014, 04:20

... summarized by these asymptotes (Fig 5) H is the point where the maximum of demand function crosses the C;regulation line We can observe that, if WUE of maize is higher than the WUE of lilac or ... Bierhuizen J.F & Slatyer R.O (1965) Effect of atmospheric concentration of water vapor and C0 in determining transpiration photosynthesis relationship of cotton leaves Agric Meteorol 2, 259-270 ... range of values of g e ) s’

Ngày tải lên: 09/08/2014, 04:20

... TYPE OF EMULSION FORMED DISPERSE WATER DROPLETS OIL Water Soluble Surfactant Favors Oil- In -Water Dispersion DISPERSE OIL DROPLETS WATER FIGURE Influences of surfactant structure on type of dispersion ... dispersion gw is surface tension of water, dynes/cm go is surface tension of oil, dynes/cm go/w interfacial tension of oil and water, dynes/cm By an examination of the force balance shown in Figure ... “treated” oil impregnated the sand For the experiment with the untreated crude oil, an analysis of the oil content of the sand bed indicated that 11.20 cc of oil remained of the initial 20 cc 2) Oil...

Ngày tải lên: 10/08/2014, 20:20

... 10.00% of rice bran oil, 5.00% of sorbitan oleate, 5.00% of PEG-30 castor oil, 0.05% of BHT antioxidant, 0.50% of preservative and 79.45% of distilled water 5.00% of sorbitan oleate, 5.00% of PEG-30 ... nanoemulsion composed of 10:20:70 (oil, surfactants and water, respectively) A surfactant concentration of 5.00% was not sufficient to form a nanoemulsion, even with smaller amounts of oil The surfactant ... Strong Page of Results and discussion Preparation of nanoemulsion The phase diagram with the rice bran oil, surfactants sorbitan oleate/PEG-30 castor oil and water shows formation of five different...

Ngày tải lên: 11/08/2014, 08:20

... disruption of skin and mucus memberane due to the use of invasive devices Most endemic infections were transmitted by the hands of medical personnel [1-5,7] The Association for Professional in ... 2.0%, which is equivalent to that of the conventional, alcohol lotion showed significantly higher rates of bacterial removal than that of hand-washing with tap water (52.1 ± 11.3%; P < 0.05) Nosocomial ... disinfectant water produced by the system is reportedly effective even at low concentrations (eg ppm) and eradicates methicillin-resistant Staphlococcus aureus IN s in vitro [6] Moreover the flow of water...

Ngày tải lên: 12/08/2014, 18:20

... critically reviewed by Loya & Rinkevitch (1980) They reported a syndrome of oil effects, including complete lack of colonization by hermatypic corals in reef areas chronically polluted by oil, decrease ... genetic patterns of allozyme polymorphisms Oil pollution of the sea has received a great deal of attention from research workers throughout the world, especially due to disasters of giant oil tankers ... trend of vivors of oil was not DISCUSSION The effects of detergents on the marine biota were reported by several studies: Manwell & Baker (1967) performed starch gel electrophoresis on a variety of...

Ngày tải lên: 14/08/2014, 20:20

... evidence came from studies of soap films, flow in narrow passages, rigidity of water layers, viscosity of organic liquids through clay, and density of a water layer on the surface of platinum The evidence ... between AFM tips of different radius of curvature (Rtip = 15nm to 100nm) with a clear trend of decreasing F/Rtip with increasing Rtip The effect of trace water, with the exception of the OMCTS-HOPG ... repulsive force Effects of Water / Polar Additives The presence of even trace amounts of water was found to have a striking effect on the solvation force The result was usually a shift of the oscillatory...

Ngày tải lên: 11/09/2015, 16:04