[PDF] Full Studies On The Adsorptive Removal Of Textile Dyes From Aqueous Solution By Activated Carbon And Activated Carbon Mno2 Nanocomposite Adsorbent Derived From Typha Angustata L Download eBook

Studies on the Adsorptive Removal of Textile Dyes from Aqueous Solution by Activated Carbon and Activated Carbon-Mno2-Nanocomposite Adsorbent Derived From Typha Angustata L

Author:

Publisher: True Dreamster

Published: 2024-05-06

Total Pages: 93

ISBN-13: 9395030747

The characteristics of the activated carbon and the changes in that of the modified activated carbon were verified by SEM, EDX, XRD, XPS, BET and FT-IR analyses;·The SEM studies indicate the formation of regular structure with net thin fibrils of AC; and spherical shape and smaller than 18nm in size of porous surface created in AC-MnO2-NC. The EDX studies show the presence of the elements, Carbon, Oxygen, Sodium, Magnesium, Phosphorous, Sulphur, Chlorine, Potassium and Calcium in AC. In case of AC-MnO2-NC in addition to these elements, the capping Manganese is proved. The XRD studies indicate the formation of short range crystalline structure and abundance of amorphous structure of the activated carbon and the modified activated carbon. The presence of Carbon and Oxygen in the activated carbon and in addition to these elements, the presence of Manganese in the modified activated carbon are also revealed by XPS studies. The BET studies show that the surface area of AC is 83.54m2/g and that for AC-MnO2-NC is 147.76m2/g. The FT-IR study suggest that the capping of MnO2 in modified activated carbon and the presence of the functional groups viz., -OH, -C=O, -C=C, -C-H, -CH2, -CH3 in the two adsorbents. The percentage of dye removal increases with increasing agitation time and adsorbent dose and decreases with increasing initial dye concentration. An increase in the time of agitation was found to be directly proportional to the amount of dye adsorbed per unit weight of the adsorbent. The adsorption of dyes from aqueous solutions attain equilibrium at different agitation time which depend on initial dye concentrations and initial pH of the dye solutions.

Studies on the Adsorptive Removal of Textile Dyes from Aqueous Solution by Activated Carbon-Mno2-Nanocomposite Adsorbent Derived From Passiflora Foetida Seed

Author: Dr. M. Sathya

Publisher: True Dreamster Press

Published: 2024-08-10

Total Pages: 97

ISBN-13: 9395030992

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The Book has been divided into three parts. In the first part of the thesis elaborates the nature of adsorbent and adsorbate material taken. The second part of the thesis explores the physico chemical characteristics of the suitable adsorbent material. The third part of the thesis explains the batch mode kinetic studies isotherm and evaluation of thermodynamic parameters.

Chemistry of Advanced Environmental Purification Processes of Water

Author: Erik Sogaard

Publisher: Newnes

Published: 2014-04-11

Total Pages: 359

ISBN-13: 0080932401

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Chemistry of Advanced Environmental Purification Processes of Water covers the fundamentals behind a broad spectrum of advanced purification processes for various types of water, showing numerous applications through worked examples. Purification processes for groundwater, soil water, reusable water, and raw water are examined where they are in use full-scale, as a pilot approach, or in the laboratory. This book also describes the production of ceramic particles (nanochemistry) and materials for the creation of filtration systems and catalysts that are involved. - Uses chemistry fundamentals to explain the mechanisms behind the various purification processes - Explains in detail process equipment and technical applications - Describes the production of ceramic particles and other new materials applicable to filtration systems - Includes worked examples

Advances in Biological Treatment of Industrial Waste Water and their Recycling for a Sustainable Future

Author: Ram Lakhan Singh

Publisher: Springer

Published: 2018-10-12

Total Pages: 376

ISBN-13: 9811314683

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With rampant industrialization, the management of waste generated by various industries is becoming a mammoth problem. Wastewater discharges from industrial and commercial sources may contain pollutants at levels that could affect the quality of receiving waters or interfere with potable water supplies. Thousands of small and large-scale industrial units dump their waste, which is often toxic and hazardous, in open spaces and nearby water sources. Over the last three decades, many cases of serious and permanent damage to the environment and human health on the part of these industries have come to the fore. This book mainly focuses on the biological treatment of wastewater from various industries, and provides detailed information on the sources and characteristics of this wastewater, followed by descriptions of the biological methods used to treat them. Individual chapters address the treatment of wastewater from pulp and paper mills; tanneries; distilleries, sugar mills; the dairy industry; wine industry; textile industry; pharmaceutical industry; food processing industry; oil refinery/petroleum industry; fertilizer industry and beverage/ soft drink bottling industry; and include the characteristics of wastewater, evaluation of biological treatment methods, and recycling of wastewater. Easy to follow, with simple explanations and a good framework for understanding the complex nature of biological wastewater treatment processes, the book will be instrumental to quickly understanding various aspects of the biological treatment of industrial wastewater. It will serve as a valuable reference book for scientists, researchers, educators, and engineers alike.

Kinetics of Metal Ion Adsorption from Aqueous Solutions

Author: Sotira Yiacoumi

Publisher: Springer Science & Business Media

Published: 1995-06-30

Total Pages: 256

ISBN-13: 9780792396000

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This monograph is intended to provide a systematic presentation of theories concerning the adsorption of metal ions from aqueous solutions onto surfaces of natural and synthetic substances and to outline methods and procedures to estimate the extent and progress ofadsorption. As heavy metals and the problems associated with their transport and distribution are of serious concern to human health and the environment, the materials presented in this volume have both theoretical and practical significance. In writing this monograph, one ofour goals was to prepare a book useful to environmental workers and practicing engineers. For this reason, our presentation relies heavily on concepts commonly used in the environmental engineering literature. In fact, the volume was prepared for readers with a basic understanding of environmental engineering principles and some knowledge of adsorption processes. No prior familiarity with the ionic solute adsorption at solid-solution interfaces is assumed. Instead, introduction of the necessary background information was included. Generally speaking, metal ion adsorption may be studied in terms of three distinct but interrelated phenomena: surface ionization, complex formation, and the formation and presence of an electrostatic double layer adjacent to adsorbent surfaces. Analyses of these phenomena with various degrees of sophistication are xviii ADSORPTION OF METAL IONS FROM AQUEOUS SOLUTIONS presented, and their various combinations yield different models that describe metal ion adsorption.

Removal of Emerging Contaminants Through Microbial Processes

Author: Maulin P Shah

Publisher: Springer Nature

Published: 2020-10-14

Total Pages: 536

ISBN-13: 9811559015

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The abundance of organic pollutants found in wastewater affect urban surface waters. Traditional wastewater management technologies focus on the removal of suspended solids, nutrients and bacteria, however, new pollutants such as synthetic or naturally occurring chemicals are often not monitored in the environment despite having the potential to enter the environment and cause adverse ecological and human health effects. Collectively referred to as "emerging contaminants," they are mostly derived from domestic activities and occur in trace concentrations ranging from pico to micrograms per liter. Environmental contaminants are resistant to conventional wastewater treatment processes and most of them remain unaffected, causing contamination of receiving water. This in turn leads to the need for advanced wastewater treatment processes capable of removing environmental contaminants to ensure safe fresh water sources. This book provides an up-to-date overview of the current bioremediation strategies, including their limitations, challenges and their potential application to remove environmental pollutants. It also introduces the latest trends and advances in environmental bioremediation, and presents the state-of-the-art in biological and chemical wastewater treatment processes. As such, it will appeal to researchers and policy-makers, as well as undergraduate and graduate environmental sciences students.

Nanomaterials in Biofuels Research

Author: Manish Srivastava

Publisher: Springer

Published: 2021-08-26

Total Pages: 0

ISBN-13: 9789811393358

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As renewable energy sources, biofuels have tremendous potential to replace fossil fuels in future energy scenarios, offering green alternative energy sources. However, though such fuels could mean a significant reduction in environmental pollution, they are still far from practical implementation due to their high production costs and technical issues. Consequently, efforts are being made around the globe to achieve the cost-effective production of biofuels. In this context, the use of nanomaterials to improve biofuels production efficiency is a vital, emerging area. Nanomaterials are attracting attention due to their versatile physicochemical properties and may improve the production process for various biofuels by acting as catalysts. However, this area is still in its infancy. To improve the practical viability of the biofuels production process, it is essential to focus on the specific type of nanomaterial used, its synthesis, and its specific effects on the process parameters. This book explores the potential advantages and feasibility of various aspects of nanomaterials with regard to improving the current biofuels production process, making it a valuable resource for a broad readership.

Emerging Eco-friendly Green Technologies for Wastewater Treatment

Author: Ram Naresh Bharagava

Publisher: Springer Nature

Published: 2020-03-04

Total Pages: 361

ISBN-13: 9811513902

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As we know, rapid industrialization is a serious concern in the context of a healthy environment and public health due to the generation of huge volumes of toxic wastewater. Although various physico-chemical and biological approaches are available for the treatment of this wastewater, many of them are not effective. Now, there a number of emerging ecofriendly, cost-effective approaches utilizing microorganisms (bacterial/fungi/algae), green plants or their enzymes, and constructed wetland treatment systems in the treatment of wastewaters containing pollutants such as endocrine disrupting chemicals, toxic metals, pesticides, dyes, petroleum hydrocarbons and phenolic compounds. This book provides a much-needed, comprehensive overview of the various types of wastewater and their ecotoxicological effects on the environment, humans, animals and plants as well as various emerging and eco-friendly approaches for their treatment. It provides insights into the ecological problems and challenges in the treatment and management of wastewaters generated by various sources.