für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La recuperación de los suelos contaminados con elementos traza y metales pesados resulta muy difícil debido a que éstos no son degradables, al contrario que los contaminantes orgánicos o los radionucleidos de vida corta. La mayoría de las técnicas de recuperación se basan en métodos físicos y químicos económicamente costosos y que alteran drásticamente la estructura y las propiedades físico-químicas del suelo. Sin embargo, en la última década ha crecido el interés por el desarrollo de técnicas respetuosas con el medioambiente y económicamente viables. Dentro de estas técnicas está la Recuperación Natural Asistida, basada en la utilización de enmiendas y/o plantas que aceleran los procesos de adsorción, precipitación y complejación que ocurren de forma natural en el suelo, los cuales disminuyen la movilidad y la biodisponibilidad de los contaminantes. Dicha técnica estimula asimismo la actividad microbiana del suelo y el reciclado de nutrientes. El presente trabajo representa un estudio detallado y único sobre el potencial de varias enmiendas y/o el desarrollo de cubiertas vegetales para estabilizar elementos traza en el suelo y recuperar suelos contaminados con dichos elementos. ····· 10361116413
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La industrialización y crecimiento de la población en las últimas décadas ha provocado un incremento considerable en la generación de aguas residuales. Este fenómeno ha dado lugar a la aparición de leyes y normativas cada vez más exigentes para controlar la contaminación de estos vertidos y evitar la contaminación de las aguas de los acuíferos, ríos y costas. Esta creciente exigencia de la calidad del agua residual tratada, obliga a una mejora continua de los procesos de depuración de aguas residuales.Entre los procesos de tratamiento más extendidos para la eliminación de nitrógeno y fósforo en una EDAR se encuentran los procesos de eliminación biológica. Este tipo de tratamientos unidos a los procesos de eliminación de materia orgánica y sólidos suspendidos, incrementan considerablemente la complejidad de operación de una EDAR y más aún en el contexto de la minimización de residuos y de consumo energético. De este modo surge como un requisito imprescindible para la correcta explotación de una EDAR, la instrumentación, control y automatización de los procesos biológicos. ····· 10361116364
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, it was aimed to determine some heavy metal content in black olives cv. Gemlik, which meet an important part of black table olive demand in our country and are of importance in our region. In the research, the iron, copper, zinc, lead and cadmium content of fresh olives grown at the roadside and on mountains were analyzed and the chemical and metal analyses were carried out on olives harvested from different sites when fresh, in the 1st, 3rd and 5th months of fermentation, or during the marketing period. Moreover, analyses of magnesium, chromium, cobalt, nickel and tin were realized in addition to the metals mentioned, with the aim of determining the metal content of black olives sold in the Bursa market. According to the results obtained from the study, the effects of all three regions on the metal pollution of olives picked from roadsides and near industrial zones were found to be significant statistically. ····· 10361115935
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nanotechnology is poised to change the way we perceive and practice science. Nanomaterials are the ones that posses at least one dimension lesser than 100 nanometer (nm). The science of nanotechnology revolves around the ability to engineer, control and exploit the unique chemical, physical and electrical properties that the infinitesimally tiny man-made particles exhibit. A biomaterial is any material, natural or man-made, that comprises whole or part of a living structure or a biomedical device which performs, augments, or replaces a natural function. Hydroxyapatite(HAp) falls under the category of calcium phosphate based ceramics and has been used extensively for replacing and augmenting bone tissue. This book reports a comprehensive analysis on the combustion synthesis route for Hydroxyapatite synthesis, and the different characterization methods to decipher the product`s size range, functional groups, crystallinity. A preliminary study on the applicability of HAp as an adsorbent in TLC is also reported. ····· 10361115855
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The production of free flowing powder by spray drying of sugar-acid rich foods requires an appropriate carrier. High molecular weight materials such as maltodextrins are commercially used as a drying aid because of their higher glass transition temperature (Tg). Alternatively, fibre-rich by-products from fruit and vegetable juice processing might provide high molecular weight elements that are suitable as a drying support. Freeze dried carrot fibre was centrifugal-milled to 50-100 µm sizes. Fructose and apple juice concentrate were used in this study. The fibre semed to show as crystal induction in the spray drying products of the two materials. Dried sucrose, glucose and fructose were used to study glass transition temperature of melted amorphous sugars and mixtures by the visual experiment and DSC at 0.1°Cmin-1 of heating and cooling scans. The Gordon-Taylor equation and the Coachman and Karaze equation were used to predict Tg of sugar mixtures. Dielectric analysis in the range 200 Hz -1 MHz between 10-105 ° C were applied to find the onset Tg (based on DSC results) from freeze dried mixtures of carrot fibre+fructose. ····· 10361115739
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bangladesh has a lot of natural resources. Natural Gas is the main geo-resource among them. Natural gas of our country is unique in the world for its quality. Addition to this, a lot amount of condensate is extracted in gas processing plants. The industrial and power sector of Bangladesh has a great dependency on the natural gas either for fuel or for raw material. The processed gas is also used in domestic purpose & now a day in vehicles as fuel.But even after having a lot of gas the country is in gas crisis.This book includes natural gas and its processing and also how the processing plants work. The chapters deal with process description of gas, safety, maintenance, fractionation, laboratory analysis etc. Details of Molecular sieve turbo expander technology in Kailashtila gas field have been discussed. The analysis should help shed some light on the current gas situation of Bangladesh.Not only this book will also enlight people from Bangladesh,it will also help other countries which have gas reserve and also give them a view of advantages of molecular sieve turbo expander technology. ····· 10361115704
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book depicts processes for making industrial graphite products from both natural and synthetic graphite. State of art in this subject up to date has been covered in the book. Commercial aspect of making industrial graphite products have been discussed in the book. This book while will serve as a reference material for graduate and research students, will also serve as a source material for information related to industrial graphite products. ····· 10361115598
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Biological hydrogen production is becoming important in the renewable fuels panorama and quite promising in the succession of fuels evolution with several technical, socio-economic and environmental benefits. Among the biological approaches, dark fermentation represents a promising and environmental process to achieve hydrogen from a wide variety of low-cost renewable feedstock. This book, can be useful to understand the basis of the process for a real scale application considering energy and practical aspects. To reach this goal, it was followed an experimental approach to find out the biological parameters and dynamics which influence the hydrogen production. Then, to obtain the energy sustainability of the whole process, the attention was focused into the integration of dark H2 bioreactor with other biotechnologies, in order to valorize the end liquid products. These attracting proposed systems can be taken in consideration as alternatives to develop cost- effective energy generator by organic refuse treatment. ····· 10361115485
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the book, contemporary approach for monitoring and control of biotechnological processes on new formalization of process kinetics is presented. The new idea is the substrate kinetics to be considered as fully unknown and time-varying. This new formalization allows avoiding widespread conception for bioprocess models with constant yield coefficients. In practice, the model coefficients of such processes with nonlinear nature and low level of reproducibility are time-varying. Different applications and modifications of the proposed approach are presented. The modifications ensue from the process characteristics process target product and available information. The present book generalizes the long authors` experience with different bioprocesses in food and pharmaceutical industries, in wastewater treatment as well as for bio-fuels production from renewable sources. It is intended as a graduate level text for students in bioengineering as well as a reference text for scientists and engineers involved in bioprocess control design. ····· 10361115413
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book contains detection of heavy metals (as low as ppb level) using enzymatic inhibition technique. The toxicity of arsenic in drinking water is unexplainable and the different techniques including electrochemical procedure have been described here. The removal of arsenic was explained in packed bed and a mathematical model has been predicted here using adsorption isotherms. Finally, the model has been solved in visual basic and an extensive program was written in the following code. The instruments used and their techniques are vividly explained with specification and clear pictures. The references are also quite extensive in this publication. ····· 10361115330
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Concern about wide spread contamination of surface and ground water by various organic compounds due to the rapid development of chemical and petrochemical industries have grown over the past several decades Phenol is classified as one of the most harmful contaminants of water .Chemical and petrochemical industries effluent are the primary sources of phenol. The environmental protection agencies are getting more and more strict about these effluent treatment so that water doesent get contaminated. The industries are bound to remove the contaminants from water. This book,therefore,provides a very cost effective process by which phenol can be removed from water. The analysis should help shed some light on this new economical and effective way for the effluent treatment plant of industries for removing phenol.This will also help our society to get safer environment. ····· 10361115051
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The work reported in the book deals with the surface modifications of the organic and inorganic substrates in order to achieve special applications. Inorganic montmorillonite layered silicate surfaces were organically modified to generate polymer-clay nanocomposites for permeation- barrier packaging films, whereas surface properties of polymer particles were modified by polymerization of thermally sensitive polymer brushes from the surface to be used for chromatographic separations. ····· 10361114950
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book integrates the disciplines of chemistry, chemical reaction engineering, kinetics, catalysis and thermodynamics. It mainly includes the kinetic study (intrinsic and effective kinetics) for the Reverse Water Gas Shift reaction, chemical reactors design, and the reactor modelling and simulation at technical conditions. This book is good for both the chemical engineers and chemists. ····· 10361114638
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The papaya lipase stored in the crude papain from spay-dried latex of Carica papaya has been discovered as a versatile enantioselectivity biocatalyst to obtain chiral acids by using hydrolytic resolution of their racemic esters. With adopting the enzyme screening, purification, medium engineering and substrate engineering tactics can effectively improve the ability of lipase- catalyzed hydrolysis of (R,S)-naproxen ester. By employing partially purified lipase or an appropriate organo-soluble base (ex: Triethylamine) addition in water-saturated isooctane, both have superior enhancement of lipase activity or enantioselectivity. In addition, it was also found that initial rate enhancement for (S)-ester displayed as increasing the inductive parameter (electron-withdraw capability), therefore it further implies the acylaction step must be the rate- limiting step during enzyme-catalyzed process. Besides, a novel means of applying substrate- assisted catalysis demonstrated the proton shuttle device acts as an effective tool for improving the lipase activity by forming an extra intra-molecular hydrogen bond (11.5~11.9 KJ/mol) in the transition state. ····· 10361114583
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph presents an application of the first- order conditional moment closure (CMC) approach to modelling turbulent non-premixed flames of methane, propane and ethylene, with particular attention given to sooting flames. One objective of the current research is to investigate the practicability of incorporating gas-phase chemical mechanisms of varying length and complexity into calculations of turbulent non-premixed flames. Another objective is to extend the current scope of CMC combustion modelling by incorporating calculations of detailed gas-phase chemistry, soot formation and oxidation, and radiative heat transfer. Overall, predictions are in far better accord with experimental data when differential diffusion is accounted for in the model, and realistic prediction of soot levels are not possible without the incorporation of such effects. Given the simplicity and relative accuracy of the model described, it offers potential for future development to cover a wide range of hydrocarbon fuels, including the high hydrocarbons used in practical combustors, as well as for application in complex combustor`s geometries. ····· 10361114534
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Xylanase is an enzyme of glycosyl hydrolase family (11) that can easily break the beta-1, 4-d-xylosidic linkage of xylan, which is a major constituent of hemicelluloses. These days, xylanase are the enzymes on demand in pulp and paper industry. But for product enhancement, they need cellulase free xylanase.samples collected from the waste yard of food ndustry.First, =CSPY media was prepared. For enhancing the xylanase producing ability, wood scrapings were used as xylan substrate. From the first stage screening, actinomycete culture is obtained that has shown normal level cellulase free xylanase activity. For higher level activity, other natural substrates like corn cobs, baggaserice bran and pure xylan are used for optimization. This optimization process may enhance the production of cellulase free xylanase that could industrially fruitful in better pulp bleaching. Cellulase assay is done to confirm the absence of cellulase in the strains as cellulase free Xylanase is required. Strain improvement of the selected strains is done with EtBr technique and UV radiation to compare which technique is more fruitful as enhancing the production of required enzyme. ····· 10361114380
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nonwoven fibrous media with nanofibers havesignificant filtration applications in automotive,chemical, transportation, power generation andpharmaceutical/biological industries. Nanofibers havehigher capture efficiencies in comparison tomicrofibers in the submicron particle size range of100 - 500 nm because of smaller fiber diameter andincreased surface area of the fibers. Nanofibers arein the slip flow regime as a consequence of whichsteep increase in pressure drop is considerablyreduced due to slip effect. The economic benefits ofusing nanofiber filter media are improved filterperformance and compact filters.Electrospinning process was used to fabricate polymerand ceramic nanofibers. The electrospun polymernanofibers were added to the nonwoven fibrous mediato improve filter performance for air filtration.This improved filter performance was in consistentwith numerical modeling. This book describes theexperimental and modeling results of particle loadingon fibrous media and application of ceramicnanofibers for hot gas filtration applications. ····· 10361114361
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book a comprehensive study on the effect of hydrotropes such as sodium benzoate, sodium salicylate, tri-sodium citrate and urea on the solubility and mass transfer coefficient of a series of aromatic esters such as benzyl acetate, benzyl propionate, benzyl butyrate, benzyl benzoate and benzyl salicylate has been carried out. The influence of a wide range of hydrotrope concentration and different temperatures on the solubility of aromatic esters is presented. The influence of different hydrotrope concentrations on the mass transfer coefficient of esters has been ascertained. Data on various aspects of hydrotropic study on the solubility and mass transfer coefficient for a series of aromatic esters have been provided for the first time. The experimental solubility data for various solutes at different temperatures have been analyzed using the modified Setschenow equation. To propose a possible mechanism of hydrotropic phenomenon, the solution properties of hydrotropes like density and viscosity have been determined for a range of hydrotrope concentrations. The implications of the study have been fully discussed and the scope for future research has been suggested. ····· 10361114221
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray the present work was devoted to develop an efficient synthetic process which requires cofactors. The enzymatic glucose 6-phosphate (G6P) production from glucose was demonstrated as a model process. As cofactors, two new polymer-bound adenine nucleotides (ATP and ADP) were synthesized using starburst polyamidoamine (PAMAM) dendrimers. Then, the kinetics of the reactions catalyzed by Bacillus stearothermophilus glucokinase (GK) and acetate kinase (AK) using these polymer-bound cofactors were studied extensively. Finally, the production of G6P using the polymer-bound ATP in a plug flow-type hollow-fiber membrane reactor (PFMR) in a diffusion mode as well as a continuous stirred tank-type membrane reactor (CSTMR) in a filtration mode was investigated theoretically ····· 10361113870
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Providing drinking water has been one issue for the world population. By 2025 this issue is threatening around three billion people who are hard to access clean potable water. The provision of potable water has become a challenge. The ability to produce potable water economically is thus the primary purpose of seawater desalination work. Reverse osmosis (RO) and multi-stage flash (MSF) for desalination are already used, but they are more costly than potable water produced from fresh water resources. As an alternative to RO and MSF, this work provides information for desalination system with the cost analysis. This investigates a high-efficiency mechanical vapor-compression distillation system that employs an improved water flow arrangement. Greater efficiency of the vapor compression system is achieved by connecting multiple evaporators in series, rather than the traditional parallel arrangement. This information should help encourage an exchange of information in open forum, and should be a benefit to representatives from engineering and economics that have an eye to acquire both economical and technical basic knowledge in the field of mechanical-vapor-compression distillation. ····· 10361113846
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book provides the top management in industry an accurate and quick tool to build the right decision regarding the mechanical structures facing potential problems caused by galvanic corrosion. The Integrity Management Plan (IMP) was utilized as a road map to provide the industrial management with all parameters that might affect galvanic corrosion in order to save time and in other word to save money by introducing empirical equations that convert corrosion from a scientific term to a tangible one. ····· 10361113566
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The aim of this thesis is to present the application of fullerene C60 thin film as a novel coating material for Si film anodes of lithium ion secondary batteries. Fullerene C60 film is prepared and synthesized by plasma assisted thermal evaporation technique. The thesis firstly focuses on the structural and electrochemical characteristics of C60 coated Si anodes. The estimation of Li-ion diffusion coefficients in the coated Si anodes is the second topic investigated. Finally, the thesis discusses about the effect of coating layer thickness especially on the electrochemical characteristics of C60 coated Si anodes. ····· 10361113481
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bio-diesel is a renewable diesel fuel substitute that can be made by chemically combining any natural oil or fat with an alcohol. Most European bio-diesel is made from edible oil. In India the above situation does not hold valid because of large scale demand of edible oils for food purposes so non- edible oils are used. Based on the features of the oils form the non edible plants, we have short listed, Jatropha carcus and Pongamia pinnata for further exploitation and extensive studies. The two virgin oils can be used directly in light service CI engine, For application in HSD engines the two oils need modifications so that specifications become closer to that of average HSD. Literature scan of technological aspects of biodiesels show the following gaps in knowledge which calls for further investigations to strengthen this technology. A) Comparative studies of preparation of bio-diesel and detailed characterization. B) Limited studies on blends involving ME of JC & PP with Euro-III & Euro-IV HSD and their characterization. C) Oxidation stability of neat ME and influence of antioxidants on the oxidation behavior of blended esters with petrodiesel. ····· 10361113319
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The major component of cookie making is wheat and it contains low amount of -carotene, it is also deficient in some amino acids such as lysine and tryptophan. Carrot and quality protein maize on the other hand are a rich source of -carotene and, lysine and tryptophan respectively. Hence the study was aimed to supplement wheat flour with carrot and quality protein maze in order to develop a cookie rich in -carotene, lysine and tryptophan and to study the effect of processing on the quality attributes of cookies. This document give an insight on how processing could affect the quality attributes of cookie and should be useful especially for cookie or biscuit industries, professionals in food process engineering, and food science and nutrition . ····· 10361113175· 1 · ::::: · 2 ·· 3 ·· 4 ·· 5 ·· 6 ·· 7 ·· 8 · ::::: · 13 ·
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