removal of forms shores and reshoring

... ambient dry and wet conditions (0.23 and 0.26 lg/mL DMMP and 2-CEES in N2 flow, respectively) The removal efficiency of the MgO/C composites were evaluated and compared with those of pure MgO and activated ... images of (a) MgO and (c) MgO/C-1; TEM images (b) MgO, (d) MgO/C-1, and (e) MgO/C-1 after etching MgO; (f) EDS spectrum of MgO/C-1; (g) and (h) elemental maps of carbon and magnesium of MgO/C-1, ... protection of sorption and reaction of DMMP and 2-CEES from water vapor The sorption capacities of DMMP and 2-CEES on the MgO/C-1 sample under humid conditions were 61.5 mg/g and 30.4 mg/g, about 91% and

Ngày tải lên: 02/09/2017, 10:00

... were in the range of – 6, at which the maximal TN removal efficiencies of R1 and R2 were 92 % and 97 %, respectively Keywords: modified SBR, simultaneous removal of organic matter and nitrogen, rubber ... Effects of COD loading rate on COD removal rates and efficiencies Figure Effects of NH4+-N loading rate on NH4+-N removal rates and efficiencies The effects of the TN loading rate on TN removal ... Journal of Science and Technology 56 (2) (2018) 236-245 DOI: 10.15625/2525-2518/56/2/10816 EFFECTS OF COD/TN RATIO AND LOADING RATES ON PERFORMANCE OF MODIFIED SBRs IN SIMULTANEOUS REMOVAL OF ORGANIC

Ngày tải lên: 03/03/2020, 20:59

... combinations of coarse and fine soils were used, with the aim of determining the influence of the design characteristics of the SSTS on the improvement of fecal indicators and organic matter removal ... cases and (ii) the removal efficiencies of case and case 4, both having a 2nd box of 30 cm width filled with granitic gravel of 1-2 mm and 1-4 mm respectively, the other characteristics of the ... capability of staining and trapping the bacteria (Vafai, 2011) The removal of pathogens in a filtration unit also depends on the characteristics of the filter bed (nature of filter media) When sand and

Ngày tải lên: 21/05/2020, 19:52

... show the presence of absorption bands of clay phase and the adsorption characteristic bands of impurities Two absorption peaks are observed between 3200 and 3800 cm−1, and 1600 and 1700 cm−1 The ... 6.0 and 4.0 for Cd (II) and Cr (VI) respectively, initial concentrations of Cd (II) and Cr (VI) = 50 mg/L and T = 293.15 K The kinetic of the adsorption process was studied by application of the ... B., Nibou, D and Boufatit, M (2014) Application of Algerian Bentonite in the Removal of Cadmium (II) and Chromium (VI) from Aqueous Solutions Journal of Surface Engineered Materials and Advanced

Ngày tải lên: 01/11/2022, 08:48

... the removal of Hg2+ at the ppb level The list of Fe3O4, ZnO and TiO2-based nanomaterials used for the removal of toxic metal ions is described in Table 2.1.5 General mechanism of the removal of ... six cycles Figure (A) Removal of 50 mg L-1 of As(III), Cu(II) and Cr(III) by 500 mg L-1 of Fe3O4–SiO2-poly(1,2-diaminobenzene) at 30 0C [61]; (B) removal of Cu (II), Pb(II) and Cd(II) by Fe3O4@SiO2@meso-SiO2NH2 ... nanoadsorbents for the removal of toxic metal ions from water Sarika Singh, K C Barick and D Bahadur: Functional Oxide Nanomaterials and Nanocomposites for the Removal of Heavy Metals and Dyes Magnetic

Ngày tải lên: 04/12/2022, 10:31

... high concentrations of Cs+ and Sr2+ in aqueous solutions Effect of adsorbent dosage and regeneration.  Figure 3a shows the effect of the contents on the adsorption of Cs+ and Sr2+ to explore ... spectra (c) before and after the ion exchange with Sr2+, Cs+ and H+, and XPS spectra (d) before and after the ion exchange with Sr2+ and Cs+ S6a and S6b The doublet peak characteristic of Sr 3d appears ... the Sr2+- and Cs+-laden product with a 1 M HCl solution and then performing a subsequent alkaline hydrothermal treatment3 Figure 3b shows the recycling of Na-TNBs in the removal of Sr2+ and Cs+

Ngày tải lên: 04/12/2022, 15:34

... exchange of ions present in their backbone to the ionic form in solu- *  PhD, **  Professor,  AGH University of Science and Technology, Faculty of Mining and Geoengineering,    Krakow, Poland; e-mail: ... and equilibrium concentrations of studied ions in the solution [mg/L], is the quantity of dry mass of the ion-exchange resin [g] Discussion of the results 2.1 Influence of the concentration of ... solutions may contain toxic Pb, Cu, Cd and other metal ions These ions may also be components of leachates in landfills of ores The toxicity of the ionic forms of these metals is high Unauthenticated

Ngày tải lên: 04/12/2022, 16:15

... function of t and the slope of the line was calculated k2 was estimated by plotting t/qt as a function of t and estimate the slope and intercept of the line The adsorption isotherm of the methylene ... of ce and estimating the slope and intercept of the line KF was estimated by plotting ln(qe) as a function of ln(ce) and estimate the intercept of the line (Zhou et al., 2017) Results and discussion ... symmetric and asymmetric stretching of carbonyl groups in the uronic acid moieties of ulvan dialdehyde The bands at 1215 cm−1 and 845 cm−1 correspond to S=O stretching and C-O-S 3.2 Characterization of

Ngày tải lên: 01/01/2023, 12:52

... HANOI UNIVERSITY OF SCIENCE TECHNISCHE UNIVERSITAT DRESDEN NGUYEN TIEN CU SIMULTANEOUS REMOVAL OF ARSENIC AND AMMONIA FROM GROUNDWATER BY PHYTOFILTRATION WITH CATTAILS ... TỰ NHIÊN o0o NGUYỄN TIẾN CỬ SIMULTANEOUS REMOVAL OF ARSENIC AND AMMONIA FROM GROUNDWATER BY PHYTOFILTRATION WITH CATTAILS (TYPHA SPP.) CULTIVATION LUẬN VĂN ... PHYTOFILTRATION WITH CATTAILS (TYPHA SPP.) CULTIVATION MASTER THESIS FIELD: WASTE MANAGEMENT AND CONTAMINATED SITE TREATMENT SUPERVISOR: ASSC. DR. LE VAN CAT HANOI-2008

Ngày tải lên: 09/01/2015, 08:53

... coal), land filling of industrial wastes, release or disposal of chemical warfare agents [K.H Goh and T.T Lim, 2005], manufacturing of metals and alloys, petroleum refining, and pharmaceutical ... must be considered in terms of low cost, small-scale treatment, simple operation and maintenance Moreover, requirements of simultaneous removal of both arsenic and ammonia should necessarily ... phytofiltration systems because of its high arsenic-accumulating ability coupled with its rapid growth and generation of high biomass yields. This finding may open a door for phytofiltration of

Ngày tải lên: 09/01/2015, 08:53

... (2005) Removal of oral biofilms: The effect of bubble impingement angle and sonic waves Journal of the American Dental Association, 136, 1688-1693 Parini, M R., & Pitt, W G (2006) Dynamic removal of ... STUDY OF REMOVAL OF SURFACE CONTAMINANTS FROM SOLID SURFACES USING WATER JETS WITH BUBBLES AND ULTRASOUND MUHAMMAD FADZLI B HASSAN NATIONAL UNIVERSITY OF SINGAPORE 2013 FEASIBILITY STUDY OF REMOVAL ... The Measurement of Impact and Shear Stresses of Impinging Equilibrium Bubbles 5.1 5.2 The quantification of impact and shear forces via direct measurement 96 5.3 Calibration of PVDF film

Ngày tải lên: 08/09/2015, 18:19

... overall removal of ibuprofen was dependent on the total oxidation capacity in the system With the known rate constants of NOM and reaction rate of organic compounds with O3 and · the removal of organic ... the removal of ibuprofen in the presence of carbonate alkalinity The experimental results and model simulation revealed that the presence of NOM generally enhanced the removal of ibuprofen, which ... Table 5.2 Influences of SRFA on the removal of selected pharmaceutical and organic compounds 83 ix Table 5.2 Influences of SRFA on the removal of selected pharmaceutical and organic compounds

Ngày tải lên: 09/09/2015, 10:08

... means of production of lead and cadmium carbonate crystals." Langmuir, 21(16), 7220-7224 Sayari, A., Hamoudi, S., and Yang, Y (2005) "Applications of pore-expanded mesoporous silica Removal of heavy ... detection and enhanced adsorptive removal of lead ions in water and wastewater." Water Science and Technology: Water Supply 11(1), 113-120 Zhang, X., and Bai, R B (2003) "Mechanisms and kinetics of ... dictionary of toxicology." Macmillan, London Hong, S., and Elimelech, M (1997) "Chemical and physical aspects of natural organic matter (NOM) fouling of nanofiltration membranes." Journal of Membrane

Ngày tải lên: 09/09/2015, 17:52

... Influence of operating conditions The results showed that the average removal efficiencies of total COD and ammonium were higher than 76% and 70–99% for HRT of 3.5 h and 4.5 h, respectively One of the ... 1c A bundle of the media consisted of thousands of fibers having a total specific surface area of 560–725 m2 mÀ3, and a specific weight of 0.530 ± 0.027 kg mÀ3 Two flat-sheet modules of submerged ... phosphorus removal process in particular, and a biological process in general throughout all runs 3.2 Total nitrogen removal and mechanism The influent and effluent of T-N concentrations and T-N removal

Ngày tải lên: 13/09/2015, 17:48

... effect of initial pH of dye solution Fig Effect of initial concentration and contact time on the removal of RhB Fig The effect of biosorbent dosage Fig Pseudo-first-order kinetic plot for the removal ... of flow rate on the removal of Rhodamine B in fixed bed Fig 11 Effect of initial concentration on the removal of Rhodamine B in fixed bed column Fig.12 Modified Thomas model for biosorption of ... ADSORPTIVE REMOVAL OF RHODAMINE B FROM AQUEOUS SOLUTION USING BREWER’S SPENT GRAINS: BATCH AND COLUMN STUDY GUO HUI (MSc, PKU) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT OF CHEMISTRY

Ngày tải lên: 26/09/2015, 11:07

... overview of the bacteria and archaea involved in removal of inorganic and organic sulfur compounds from coal G.I Karavaiko*, L.B L o b y r e v a Institute of Microbiology, Russian Academy of Sciences, ... concentration of metal ions They possess a great physiological, biochemical and genetic variability Some of them are important for removal of inorganic sulfur compounds from coals Some types of coals and ... and archaea of the genera Sulfolobus, Acidianus, Metallosphaera, and Sulfurococcus These bacteria are able to oxidize one or more of the following compounds Fe + 2, S O and sulfide minerals and

Ngày tải lên: 21/12/2016, 10:34

... the values of kTh and q0 obtained from the model fitting and Fig shows the comparison of simulated breakthrough curves and the experimental data The fact that values of coefficient of determination ... % of the adsorption sites had been used before t0.1 On the other hand, the change of volume flow-rate led to significant changes of 123 the maximum adsorption capacity and slightly changes of ... profile (the breakthrough curve) which is essential in the evaluation of the efficiency of an adsorber The time between the absorbent start-up and the appearance of the maximum concentration of

Ngày tải lên: 16/12/2017, 17:54

... (ECOHOST), London School of Hygiene and Tropical Medicine, London, UK 3Department of Human Ecology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan 4Department of Quality of Life Measurement ... P Women and alcohol in eight postSoviet states Soc Sci Med 2009;68:1254–62 19 Bourdieu P The forms of capital In: Richardson J, editor Handbook of theory and research for the sociology of education ... different forms of social relations and by different groups It is important to continue distinguishing between different forms of social capital, as they imply different resources and constraints

Ngày tải lên: 10/01/2020, 14:44

... Faculty of the University of Virginia in Candidacy for the Degree of Doctor of Philosophy Department of English University of Virginia May 2019 i Abstract This dissertation offers an account of what ... a broad analysis of the false promises and “cruel optimism” of recent American and European culture, I narrow my focus to three periods of social unrest in American history and embeddedness in ... But many do, and often in diverse ways that reveal unique patterns, both in terms of aesthetic practice and the linkages between affect and specific historical situations Because of its conceptual

Ngày tải lên: 19/03/2020, 13:26

... device for removal of Pyr from the water Overall, the study provides a novel design of a column bed and baseline information for the efficient removal of PAH from the water burning of fossil fuels ... variety of other PAH-degrading bacteria (Kazunga and Aitken, 2000) Because of the adverse effects of PAHs on human health and environment, extensive studies on various types of PAHs removal methods ... mixture of Chitosan and Alginic acid) was fabricated using low-cost materials (Plaster of Paris, Zeolite) and agro waste (coconut coir) for removal of a potentially toxic PAH - Pyrene Materials and

Ngày tải lên: 15/05/2020, 12:57