Modified titanium dioxide (tio2) photocatalysts for the degradation of organic pollutants in wastewater

... consists of two co-axial cylinders When the inner cylinder is rotated at a certain speed, the unsteady flow within the annulus allows the fluids to recirculate from the vicinity of the rotating inner ... toxic organic pollutants In addition, the increasing population of the world is also escalating the requirements of pure water for drinking and household purpose The high population density and the ... Anpo, for his support during my stay in Japan for the research cooperation and Prof Zou Zhigang, for his kindly advice and guidance during my stay in China for the research collaboration for this...

Development of bismuth based visible light driven photocatalysts for the degradation of organic pollutants

... where χ is the electronegativity of the semiconductor which is taken as the geometric mean of the electronegativities of the component elements of the semiconductor, Ee is the energy of the free ... XII Summary Organic pollutants becomes a pervasive threat with the step forward of human beings Photocatalysis is an effective method for the degradation of organics Since visible light is much ... process The oxidative degradation of most organic pollutants by O2 is thermodynamically favorable, i.e the overall degradation reaction is exothermic However, the uncatalyzed reactions of triplet...

The development and study of titanium dioxide based buoyant composite photocatalyts for improved applications in photocatalytic degradation of organic pollutants in aqueous solutions

... THE DEVELOPMENT AND STUDY OF TITANIUM DIOXIDE BASED BUOYANT COMPOSITE PHOTOCATALYSTS FOR IMPROVED APPLICATIONS IN PHOTOCATALYTIC DEGRADATION OF ORGANIC POLLUTANTS IN AQUEOUS SOLUTIONS ... provide some preliminary information about the combination of the buoyant composite photocatalyst with an adsorbent component and the performance of the buoyant composite photocatalyst in phenol removal ... (lower than the melting point of the plastic substrate) (b) To evaluate the photoactivity of the prepared buoyant composite photocatalysts for their performance in photocatalytic degradation of some...

Effect of Process Parameters on the Degradation of Polychlorinated Biphenyls in Water Matrix using UV/H2O2

... determine the effects of initial H2O2 concentration, initial pH of the solution and initial PCB concentration on the degradation of PCBs in water matrix - 10 - Journal of Water and Environment ... adjusting the pH of the aqueous PCB solutions Effect of Initial PCB Concentration The results of the degradation of PCBs at different initial concentrations are shown in Figs and In all the initial ... pH of the samples and the temperature of the solution inside the photoreactor were continuously monitored The adjustment of the pH of the solution was done using 1.0N NaOH and 1.0N H2SO4 The effect...

Behavior of Nitrite Oxidizers in the Nitrification/Denitrification Process for the Treatment of Simulated Coke-Oven Wastewater

... -80oC The extraction of DNA was performed with Fast DNA SPIN Kit for Soil (Qbuiogene, USA) according to the instruction by the manufacturer In the preliminary step to nawwor down the species of ... affected the activities of nitrite oxidizing bacteria - 31 - Journal of Water and Environment Technology, Vol.5, No.1, 2007 Figure Behavior of nitrate and nitrite at the end of the aerobic tank Behavior ... quantitative In order to more accurately determine the behavior of nitrifiers, a quantitqative PCR method (Quanching Primer-PCR) for the determination of Nitrobacter species was developed by using the...

Utilization of activated carbon for the removal of basic dyes in fixed-bed microcolumn

... effects of the experimental parameters on the performance of activated carbon microcolumns in removing basic dyes from aqueous solution The research also investigates the potential replacement of ... significant role of the diffusion processes in the adsorption of the basic dyes under investigation The consistency in the behaviour of adsorbents toward basic dyes between the equilibrium and ... achieved in the case of PAC2 than that in the case of F400 Regarding the BY dye, F400 showed better performance than PAC2 for the removal of BY dye This is evident from a comparison of the time...

The Potential of Biofumigants as Alternatives to Methyl Bromide for the Control of Pest Infestation in Grain and Dry Food Products

... role of phosphine in grain protection has increased and stands as the main alternative to methyl bromide Lately, insect resistance to phosphine has become an important issue for effective grain ... with methyl bromide or phosphine is a quick and effective tool for the control of stored-product insect pests In view of the scheduled phaseout of methyl bromide under the Montreal protocol, the ... against ectoparasites (Mumcuoglu et al., 1996) The efﬁcacy of essential oils as fumigants for the control of pest infestations in grain and dry food products was also evaluated EOs and their constituents...

NEWPATHS FOR THE INTRODUCTION OF ORGANIC ESTER MOIETIES

... the increased rate of hydrolysis both of the anhydride and also of the ester moieties Table 5.13 Influence of the amount of TBAF trihydrate on the efficiency of the acetylation of sisal cellulose ... illustrating the potential of these methods are described 76 New Paths for the Introduction of Organic Ester Moieties 5.2.1 Sulphonic Acid Chlorides One of the early attempts for in situ activation is the ... for the Introduction of Organic Ester Moieties signals for the carbons of the modiﬁed AGU (103.7 to 60.1 ppm) and resonances of the carbon atoms of the adamantoyl ester moieties at 28.2 (C-10,...

Alternative Processing Technologies for the Control of Spoilage Bacteria in Fruit Juices and Beverages

... 90% of their energy at a wavelength of 253.7 nanometers Exposure of bacteria to UV results in cross-linking of the thymine dimers of the DNA in the organism, preventing repair of injury and reproduction ... is among the main reasons for contamination in fruit juice Washing and brushing fruit before the juicing step is common in juice processing According to one industry survey, 98% of orchards surveyed ... nonthermal processing is currently used in various parts of the world in the manufacture of a number of products, including fruit juices, fruit purees, and jams.44 HPP involves subjecting either packaged...

Tài liệu Báo cáo Y học: Role of sulfoquinovosyl diacylglycerol for the maintenance of photosystem II in Chlamydomonas reinhardtii ppt

... Therefore, a conformational change of the PSII complex may cause the decrease of PSII activity in hf-2 by the lack of speciﬁc binding of SQDG to the PSII complex Alternatively, the change of the ... to realizing the role of acidic lipids in photosynthesis The contribution of SQDG to the maintenance of maximum PSII activity in C reinhardtii was not observed with SQDG-null mutant in R sphaeroides ... surrounding at QB site of the PSII complex might cause the decrease of PSII activity even without the conformational change in protein complex Diuron inhibits PSII activity by binding to the relatively...

TECHNIQUES FOR THE ANALYSIS OF ORGANIC CHEMECALS BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (ICP-MS) pptx

... analysis of the organic solvent is the preferred method of analysis, either untreated or simply diluted in a suitable solvent Direct organic solvent analysis demands some ... cleaners In the case of non water-soluble organic solvents, oxygen cannot be derived from the water solvent and so another source of oxygen is required For this second group of organic solvents, the ... to the plasma, the plasma environment becomes considerably more reactive, and so the use of platinum-tipped interface cones instead of the standard nickel cones is recommended Optimization of the...

Student Handbook for the Master of Science Programs in: Business & Management pdf

... 12 Student Handbook for the MBM, MECON & MFINA Programs OVERVIEW OF THE MSC PROGRAMS IN BUSINESS & MANAGEMENT, ECONOMICS, AND FINANCE & ACCOUNTING SSE provides a range of Master of Science programs ... student at the Stockholm School of Economics (SSE) It is intended for students enrolled in the Master of Science (MSc) programs in Business & Management (MBM), Economics (MECON) and Finance & ... Time Period and Format The thesis work can take place both in the spring or in the fall The thesis work starts at the beginning of the semester and ends at the end of the semester The examiner can...

ag doped wo3-based powder sensor for the detection of no gas in air

... measured in a ¯owing stream of pure air or in 40 ppm NO in air (60:40 mixture from an air cylinder with another cylinder (BOC special gases) containing ca 100 ppm NO balanced with air) by the ac ... concentration of NO and NO2 gases because of the low concentration, one of the roles of the Ag is apparent to provide surface for the conversion of NO to NO2 according to the literature [18] It is worth noting ... However, there is limited work reported in the literature on addressing the precise sensing mechanism for the NOx gases detection over WO3-based sensors and there is no work to reveal the roles of the...

New ESPGHAN guidelines for the diagnosis of Coeliac Disease in Children and Adolescents pptx

... Change in clinical paradigm Definitions of coeliac disease New diagnostic guidelines Algorithms Interlaken ESPGHAN criteria (1979) Small intestinal biopsy: villous atrophy Gluten free diet for 1-2 ... unpublished Towards a new definition of coeliac disease  Chronic  Multi-organ  Small intestinal inflammation  Transglutaminase-related ESPGHAN working group, 2011 Suggestion: New definition  an immune-mediated ... 04-E029-2, 2004 NICE Clinical Guidelines 86 Coeliac Disease: Recognition and assessment of coeliac disease UK, May 2009 Guidelines: AHRQ (USA, 2004) Main issues Sensitivity/specificity of serological...

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