Contribución al estudio del tratamiento de aguas residuales mediante procesos de oxidación avanzada: degradación de S-triacinas PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Contribución al estudio del tratamiento de aguas residuales mediante procesos de oxidación avanzada: degradación de S-triacinas PDF full book. Access full book title Contribución al estudio del tratamiento de aguas residuales mediante procesos de oxidación avanzada: degradación de S-triacinas by Juan Prado López. Download full books in PDF and EPUB format.
Author: Juan Prado López
Publisher:
ISBN:
Category :
Languages : es
Pages : 260
Get Book Here
Book Description
Author: Juan Prado López
Publisher:
ISBN:
Category :
Languages : es
Pages : 260
Get Book Here
Book Description
Author: Driss Oussi
Publisher:
ISBN:
Category :
Languages : es
Pages : 230
Get Book Here
Book Description
Author: Felipe Javier Sepúlveda González
Publisher: Editorial Academica Espanola
ISBN: 9783659022906
Category :
Languages : es
Pages : 56
Get Book Here
Book Description
La presencia de productos quimicos persistentes en los diferentes tipos de aguas, se han convertido en un gran problema medio ambiental. Un ejemplo de este acontecimiento es la presencia de herbicidas como es el caso de la atrazina, que se cataloga de contaminante organico persistente. La caracteristica de estos contaminantes es principalmente que son dificilmente removidos por los procesos convencionales de tratamientos de aguas y dejan en claro la necesidad de nuevos procesos de descontaminacion. Dentro de estos nuevos procesos destacan los de oxidacion electroquimica avanzada que se basan en la generacion del radical hidroxilo, el segundo agente oxidante mas fuerte. En base a resultados experimentales se logro demostrar que estos metodos, tales como: oxidacion anodica, electro-Fenton y fotoelectro-Fenton pueden ser utiles y viables para mineralizar y degradar esta clases de contaminantes y asi desempenar un rol fundamental en la eliminacion de contaminantes organicos persistentes de los efluentes de agua.
Author: José Carlos Gasco Fernández
Publisher:
ISBN:
Category :
Languages : es
Pages : 10
Get Book Here
Book Description
Author: Helen Barndok
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Water quality is becoming one of the biggest emerging problems of the industrial world. As the public awareness of environmental protection and water pollution increases, the legislation on wastewater discharge is also becoming stricter and new monitoring, risk management and control policies are adopted every year. Therefore, improved wastewater reclamation technologies are required to meet the stringent discharge limits for toxic and hazardous substances. Among the common industrial wastewater contaminants are organic solvents, used as cleaning agents, dissolvents, dispersion medium, viscosity and surface tension adjusters, plasticisers, preservatives, etc. A great number of the industrial solvents and their stabilizing chemicals are biorefractory and even toxic to the bacterial communities in conventional wastewater treatment plants (WWTPs). In fact, the solvent stabilizers used to avoid solvent break down (antioxidants, acid acceptors, corrosion inhibitors, etc.) are meant to be especially persistent as they are chosen specifically for their ability to remain stable throughout the industrial processes. One of the persistent and problematic solvents, corrosion inhibitors and swelling agents is 1,4- dioxane. Despite the stricter discharge limits, it is continuously discovered in secondary effluents of conventional WWTPs as well as in natural water supplies. This synthetic cyclic ether comes into our water resources primarily from direct use in, for instance, pharmaceutical industry and polymer (plastics, rubber and fibre) production, but it is also generated as an industrial by-product of, for example, ethoxylated surfactants production or polyester and resin manufacture. 1,4-Dioxane may pose a multitude of harmful health effects, such as kidney failure and liver damage; furthermore, it is also classified as a probable human carcinogen. Unfortunately, the traditional methods of treating wastewaters with organic solvents (including distillation, air stripping, carbon adsorption, membrane processes and conventional biological treatment) tend to fail in completely removing the 1,4-dioxane due to its high solubility, low vapour pressure and biorefractory nature. Thus, more efficient wastewater treatment methods are needed to prevent the pile-up of this persistent and bioaccumulative chemical in the environment. The objective of this PhD thesis was driven by an actual industrial case of water contamination by 1,4-dioxane that was not degraded by the conventional wastewater treatment in the biological unit of the plant and, thus, remained in the final effluent at high concentrations. Through extensive research during the last two decades, advanced oxidation processes (AOPs) have shown a great capacity to decontaminate industrial effluents containing diverse biorefractory substances. Therefore, this alternative was chosen for the treatment of this effluent during the development of this doctoral thesis...
Author: Roberto Charles Celis Ulloa
Publisher:
ISBN:
Category :
Languages : es
Pages :
Get Book Here
Book Description
Author: Jie Fu
Publisher: Nova Science Publishers
ISBN: 9781628088472
Category : Crafts & Hobbies
Languages : en
Pages : 0
Get Book Here
Book Description
This book focuses on the application of various dyes in the dyeing process and treatment of dyeing wastewater. Chapter One deals with the chemistry and application of reactive dyes, which are the most widely used dyes for the coloration of cellulosic and allied textile fibres. Chapters Two and Three introduce photochromic dyes. Chapter Two gives a general description and Chapter Three describes the chemistry of crown ether styryl dyes in detail. Chapters Four and Five discuss indigo, the oldest known natural blue dye. Chapter Four systematically describes indigo formation in plants and application in textile coloration. Chapter Five discusses the mechanisms of a non-conversional process of indigo reduction. Chapter Six also concerns natural dyes and describes dye extraction from mangrove bark and its application in fabric dyeing. Chapter Seven summarises various kinds of macromolecular auxiliaries for salt-free dyeing auxiliaries and discusses their physiochemical properties and advantages/disadvantages. Chapter Eight aims to investigate the spinning technology of the sheath/core nylon/PET composite filament, to survey the elution characteristics of the fabrics, and to analyse their physical properties. Chapters Nine-Thirteen all discuss the treatment of dyeing wastewater, one of the biggest contributors to water pollution. They concern the different technologies applied in the treatment of dyeing wastewater, including adsorption, electrochemical techniques, coagulation/flocculation, biological treatments, and membrane bioreactors. From these contents, readers can get a good understanding on the current advances and developing trends of treatment technologies for dyeing wastewater.
Author: Howard Maskill
Publisher: John Wiley & Sons
ISBN: 0470994169
Category : Science
Languages : en
Pages : 392
Get Book Here
Book Description
A range of alternative mechanisms can usually be postulated for most organic chemical reactions, and identification of the most likely requires detailed investigation. Investigation of Organic Reactions and their Mechanisms will serve as a guide for the trained chemist who needs to characterise an organic chemical reaction and investigate its mechanism, but who is not an expert in physical organic chemistry. Such an investigation will lead to an understanding of which bonds are broken, which are made, and the order in which these processes happen. This information and knowledge of the associated kinetic and thermodynamic parameters are central to the development of safe, efficient, and profitable industrial chemical processes, and to extending the synthetic utility of new chemical reactions in chemical and pharmaceutical manufacturing, and academic environments. Written as a coherent account of the principal methods currently used in mechanistic investigations, at a level accessible to academic researchers and graduate chemists in industry, the book is highly practical in approach. The contributing authors, an international group of expert practitioners of the techniques covered, illustrate their contributions by examples from their own research and from the relevant wider chemical literature. The book covers basic aspects such as product analysis, kinetics, catalysis, and investigation of reactive intermediates. It also includes material on significant recent developments, e.g. computational chemistry, calorimetry, and electrochemistry, in addition to topics of high current industrial relevance, e.g. reactions in multiphase systems, and synthetically useful reactions involving free radicals and catalysis by organometallic compounds.
Author: Luigi Fabbrizzi
Publisher: World Scientific
ISBN: 1786343711
Category : Science
Languages : en
Pages : 269
Get Book Here
Book Description
Cryptands were introduced by Jean-Marie Lehn in 1969 as cage-shaped selective ligands for alkali and alkaline-earth metal ions, which lie at the heart of supramolecular chemistry. This book reports on much of the research in the field since the '70s, and looks at, amongst other topics, metal coordination chemistry, anion coordination chemistry, the encapsulation and taming of reactive anions, the formation of cascade complexes and the design of fluorescent sensors for ionic analytes.Cryptands and Cryptates has been written as a coursebook, structured as a series of lectures for graduate students or advanced researchers in chemistry, materials science, chemical biology and nanotechnology. It is fully illustrated to show experiments and results, and is intended to stimulate further interest in this fertile field of supramolecular chemistry.Chapters are preceded by a Foreword by Jean-Marie Lehn.
Author: Antonia Perez De Los Rios
Publisher: Elsevier
ISBN: 044463262X
Category : Technology & Engineering
Languages : en
Pages : 379
Get Book Here
Book Description
Ionic Liquids in Separation Technology reports on the most important fundamental and technological advances in separation processes using ionic liquids. It brings together the latest developments in this fascinating field, supplements them with numerous practical tips, and thus provides those working in both research and industry with an indispensable source of information. The book covers fundamental topics of physical, thermal, and optical properties of ionic liquids, including green aspects. It then moves on to contexts and applications, including separation of proteins, reduction of environmental pollutants, separation of metal ions and organic compounds, use in electrochromic devices, and much more. For the specialist audience the book serves as a recompilation of the most important knowledge in this field, whereas for starting researchers in ionic liquid separation technology the book is a great introduction to the field. First book in the marketplace dedicated to ionic liquids in separation technology Contributions from scientists in academia and researchers in industry ensure the coverage of both scientific fundamentals and industrial applications Covers a broad collection of applications in separation technology which makes the book a single source of information Includes many practical tips for researchers in industry and scientists who apply ionic liquids in their work
