Download or read book Development of Functionalized Mesoporous Inorganic organic Sorbents for Removal of Phenols and Mercury Ions from Water written by Fengling Ding and published by . This book was released on 2007 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Green Adsorbents for Pollutant Removal written by Grégorio Crini and published by Springer. This book was released on 2018-07-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume on adsorption using green adsorbents and is written by international contributors who are the leading experts in the adsorption field. Together with the first volume they show a typical selection of green materials used in wastewater treatment, with emphasis on industrial effluents. This second volume focuses on innovative materials. It presents hemp-based materials for metal removal, and the use of leaves for metal removal. It describes the biosorption of metals and metalloids on various materials and discusses the recent advances in cellulose-based adsorbents used in environmental purposes. Furthermore, activated carbons from food wastes, aerogels and bones, and municipal solid waste biochar as efficient materials for pollutant removal, respectively are reviewed as well as biosorption of dyes onto microbial biosorbents and the use of mushroom biomass to remove pollutants are looked at. The volume also includes detailed review of green adsorbents for removal of antibiotics, pesticides and endocrine disruptors and the use of pillared interlayered clays as innovative materials for pollutant removal. Finally, the use of green adsorbents for radioactive pollutant removal from natural water is discussed. The audience for this book includes students, environmentalists, engineers, water scientists, civil and industrial personnel who wish to specialize in adsorption technology. Academically, this book will be of use to students in chemical and environmental engineering who wish to learn about adsorption and its fundamentals. It has also been compiled for practicing engineers who wish to know about recent developments on adsorbent materials in order to promote further research toward improving and developing newer adsorbents and processes for the efficient removal of pollutants from industrial effluents. It is hoped that the book will serve as a readable and useful presentation not only for undergraduate and postgraduate students but also for the water scientists and engineers and as a convenient reference handbook in the form of numerous recent examples and appended information.

Download or read book Functionalized Synthetic and Bio sorbents for Removal of Inorganic and Organic Contaminants in Water written by Isaac Waweru Mwangi and published by . This book was released on 2013 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adsorption on New and Modified Inorganic Sorbents written by A. Dabrowski and published by Elsevier. This book was released on 1996-01-15 with total page 945 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a lack of authoritative, current information on the structure, investigation and preparation of inorganic sorbents, their numerous applications as well as the adsorption from gaseous and liquid phases on new and chemically modified inorganic solids. This volume deals with the above-mentioned themes and presents 34 up-to-date comprehensive and critical reviews written by well-recognized authorities. The sorbents discussed are primarily mineral ones. Each contribution treats a problem critically by showing its development, presenting documentation on the state-of-the-art and identifying subjects for further research. The book will be of interest to researchers in academic institutes and industrial laboratories engaged in the fields of surface chemistry, inorganic chemistry, adsorption, ion-exchange, catalysis, chromatography and spectroscopy of the surface phenomena, as well as to students attending graduate and postgraduate courses.

Download or read book Evaluation of solid sorbents for water sampling written by and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sorption Processes and Pollution written by Grégorio Crini and published by Presses Univ. Franche-Comté. This book was released on 2010 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Polymers Based Green Adsorbents for Water Treatment written by Susheel Kalia and published by Elsevier. This book was released on 2021-08-22 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Polymers-Based Green Adsorbents for Water Treatment focuses on the recent development of novel polymeric adsorbents that are green and eco-friendly or biodegradable in nature. The book reviews the synthesis, properties and adsorption applications of natural and green polymer-based adsorbents. It discusses adsorption processes in biopolymer systems, remediation technologies developed to remove environmental pollutants, the usage of natural polymer-based cost-effective and green novel adsorbent materials for the removal of organic and inorganic contaminants, and the efficiency of functionalized polymers, nanosorbents, hydrogels, composites, graft copolymers in the sorption of various pollutants from the environment as well as from the industrial effluents. Researchers working on environmental remediation need a single book, where all data on natural and green adsorbents for water treatment are discussed comprehensively. Natural Polymers-Based Green Adsorbents for Water Treatment addresses this need by providing world-wide leading experts' observations and research. So, this book is a valuable reference for early-career scientist, academic researchers and graduate students in chemical engineering and material science. - Presents step-by-step review of processing and modification of natural polymers and their applications in water remediation - Analyzes data on natural and green adsorbents for water treatment, meanwhile provides world-wide experts' knowledge to pave the way for further research - Includes extensive tables, graphs, figures, bibliographies and references to enhance key concepts

Download or read book Applications of Chemically Modified Nitrogen Doped Carbon Zirconium Phosphate Metal Organic Frameworks and Functionalized Graphene Oxide Nanostructured Adsorbents in Water Treatment written by Ayyob Mohammed A. Bakry and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water contaminations by many pollutants, especially heavy metals such as Pb(II), Hg(II), Cu(II), Cd(II), and Cr(VI) pose many public health and environmental concerns as reported in the list of hazardous substances compiled by the US Environmental Protection Agency due to their high toxicity, refractory degradation, and ease of entering food chain. Adsorption by chelating resins is proven to be the most effective method for the extraction of metal ions from polluted and wastewater. However, traditional absorbents such as activated carbon, activated alumina, clay, zeolite, etc., show limited adsorption abilities for these heavy metal ions. The major goal of this thesis is to develop efficient and cost-effective adsorbents for the extraction of heavy metals from wastewater. This dissertation will focus on the development of four chemically modified high surface area adsorbents with accessible chelating sites for capturing and retaining toxic metal ions from polluted water. The first adsorbent, Nitrogen Doped Carboxylated Activated Carbon (ND-CAC), is prepared by a polymerization reaction between melamine and formaldehyde to form the melamine formaldehyde resin (MF-R) followed by carbonization at 800 ̊ C under nitrogen atmosphere to form nitrogen doped carbon (ND-C), and finally oxidation to form the ND-CAC adsorbent. The ND-CAC adsorbent shows high adsorption capacities of 750.5, 250.5, 98.2 mg/g for the extraction of Pb(II), Hg(II), and Cr(VI), respectively from aqueous solutions with a high selectivity to Pb(II). The second adsorbent, Melamine Zirconium Phosphate (M-ZrP) is prepared by a precipitation reaction between Melamine Phosphate (MP) and ZrCl4 in an aqueous solution. The M-ZrP adsorbent is used for the removal of Pb(II), Hg(II), and Cd(II) with maximum adsorption capacities of 680.4, 119.0, and 60.0 mg/g, respectively with a high selectivity to Pb(II). The third adsorbent is chemically functionalized metal organic framework (UIO-66-IT) was prepared by post-synthetic modification using the chelating ligand 2-Imino-4-Thioburit. The adsorbent was used to extract Hg(II) and (HPO4)− ions from aqueous solutions and the results revealed exceptionally high adsorption capacities toward mercury and phosphate ions of 700 and 160 mg/g, placing it among the top functionalized MOF known for the high capacity of Hg(II) removal from aqueous solutions. The fourth adsorbent, Melamine Thiourea Partially Reduced Graphene Oxide (MT-PRGO) prepared by the amidation reaction between chemically modified graphene oxide and melamine thiourea, is used for the effective extraction of Hg(II), Co(II) and Cu(II) from polluted water. The MT-PRGO adsorbent shows exceptional selectivity for the extraction of Hg(II) with a capacity of 651 mg/g, placing it among the top of carbon-based materials known for the high capacity of Hg(II) removal from aqueous solutions. Desorption studies demonstrate that the new adsorbents ND-CAC, M-ZrP, UIO-66-IT, and MT-PRGO are easily regenerated with the desorption of the heavy metal ions Hg(II), Pb(II), Cd(II), and Cr(VI) reaching 99 % - 100 % recovery from their maximum sorption capacities using different eluents. Moreover, all prepared adsorbents showed tremendous abilities to clean contaminated water from toxic heavy metals at trace concentrations. That prove the ability of using them at water contamination level when the concentration of heavy metals is very low. The new adsorbents ND-CAC, M-ZrP, UIO-66-IT, and MT-PRGO are proposed as top performing remediation adsorbents for the extraction of the heavy metals Pb(II), Hg(II), Cd(II), Cr(VI), and (HPO4)− from waste and polluted water.

Download or read book Low cost Sorbents written by Susan Bailey and published by . This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The capital and regeneration costs of activated carbon and ion exchange media suggest that better process economics may be achieved with disposable sorbents for the treatment of metals-contaminated water and waste streams. An extensive literature search was conducted to identify potentially inexpensive sorbents that could be disposed, rather than regenerated, after use. The literature indicates that many materials with this potential are readily available, either as process by-products or in their natural form. The most promising sorbents identified in this literature search will be tested at bench scale with synthetic metal solutions.

Download or read book Inorganic and Organic Hybrid Materials for Environmental Remediation written by Xiaonan Duan and published by . This book was released on 2013 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wastewater is the main source of environmental pollution and it contains numerous pollutants, and many of them, including phenolic compounds and heavy metal ions, are very toxic and potentially hazardous to public health. The first part of the thesis focuses on phenol remediation. We study new hierarchical hybrid biocatalysts comprised of horseradish peroxidase (HRP), magnetic nanoparticles and microparticles for advanced oxidation processes. The hybrid peroxidase catalysts exhibit activity three times higher than free HRP and are able to remove three times more phenol compared to free HRP under similar conditions. In addition, the hybrid catalysts reduce substrate inhibition, which is common with free or conventionally immobilized enzymes. We improve the reusability of the system when the HRP/magnetic nanoparticle hybrids are supported on micron scale magnetic particles. The second part of the thesis focuses on a mesoporous bis-amine bridged polysilsesquioxane sorbent for heavy metal ion removal. We synthesize a mesoporous sorbent by hydrolysis and condensation of amine-bridged precursor in the presence of a nonionic surfactant. The sorbent exhibits a high adsorption capacity of 77 mg/g (1.2 mmol/g) and 276 mg/g (1.3 mmol/g) for Cu (II) and Pb(II), respectively. After metal adsorption we can easily regenerate the system to full capacity. The sorbent shows high selectivity for Cu (II) over Ni (II) and Co (II) but it becomes deactivated in the presence of a small amount of adsorbed Cr (III) ions. We also apply this sorbent to adsorb CO2. It exhibits fast CO2 capture kinetics and has a CO2 capacity of 2.4 mmol/g. We can fully regenerate the sorbent and it shows good stability over repetitive adsorption-desorption process over 10 cycles.

Download or read book Development of Hydroxyapatite polymer Sorbents for the Removal of Heavy Metal Ions from Waste Waters written by and published by . This book was released on 2018 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthetic Sorbent Materials Based on Metal Sulphides and Oxides written by D.S. Sofronov and published by Taylor & Francis. This book was released on 2020-11-05 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic Sorbent Materials Based on Metal Sulphides and Oxides focuses on development of inorganic nanomaterials for removal of metallic species from the aqueous environment. General synthetic methods to prepare such materials are lacking. This book investigates problems of controlled synthesis of these materials and the effect of their morphological characteristics on their sorption capacity. • Synthesizes experimental data on the synthesis of micro- and nanoparticles of zinc, copper, and cadmium sulfides, iron oxides, and manganese oxyhydroxide. • Discusses controlled synthesis of zinc, cadmium, and copper sulfide particles and their sorption properties. • Describes production of iron oxides (hematite and magnetite) and manganese oxyhydroxide particles. • Features numerous SEM images of the obtained nanostructures and original graphs of various characteristics. • Offers practical recommendations. This book is of interest to researchers and scientists working with inorganic synthesis and properties of sorption materials.

Download or read book Functionalization and Evaluation of Organic and Inorganic Adsorbents for the Removal of Cadmium in Wastewaters written by Ana Lucía Campaña Perilla and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study presents the feasibility for the removal of Cd from aqueous solution by using various functionalized substrates, including Cocoa Bean Husk (CBH), Polyester fabric, Iron Nanoparticles (NPs) and Alumina spheres. To improve materials affinity to Cd, we explored four different surface modifications, namely (3-Aminopropyl) triethoxysilane (APTES), L-Cysteine (Cys) and 3-(triethoxysilyl) propylsuccinic anhydride (CAS). Surfaces were characterized by FTIR, FIB-SEM and DLS and studied for their ability to remove metal ions. Modified NPs and CBH proved to be effective for Cd removal with efficiencies in the range of 93 to 100%. Batch adsorption experiments investigated the influence of pH, contact time, and adsorbent dose on Cd adsorption. Additionally, we explored the recyclability of the adsorbents and their potential phytotoxicity effects." -- Tomado del Formato de Documento de Grado.

Download or read book Use of Adsorbents for the Removal of Pollutants from Wastewater written by Gordon McKay and published by CRC Press. This book was released on 1995-10-25 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of Adsorbents for the Removal of Pollutants from Wastewater describes the most commonly occurring industrial effluents, and presents direct means and methodologies for treating them. In addition to its excellent introduction to pollutants, this book contains all of the basics you need for understanding the characteristics and applications of adsorbent materials. With this book, you can choose from a wide variety of traditional and novel adsorbents, including alternative, relatively inexpensive adsorbents.

Download or read book Development of a Sorbent Distribution and Recovery System written by Sydney Herbert Shaw and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Adsorbents for Water Pollution Control written by Amit Bhatnagar and published by Bentham Science Publishers. This book was released on 2012-11-11 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among various water and wastewater treatment technologies, the adsorption process is considered better because of lower cost, simple design and easy operation. Activated carbon (a universal adsorbent) is generally used for the removal of diverse types of pollutants from water and wastewater. Research is now being directed towards the modification of carbon surfaces to enhance its adsorption potential towards specific pollutants. However, widespread use of commercial activated carbon is sometimes restricted especially in developing or poor countries due to its higher costs. Attempts are therefore being made to develop inexpensive adsorbents utilizing abundant natural materials, agricultural and industrial waste materials. Use of waste materials as low-cost adsorbents is attractive due to their contribution in the reduction of costs for waste disposal, therefore contributing to environmental protection. This e-book explores knowledge on recent developments in adsorbents synthesis and their use in water pollution control. This handy reference work is intended for researchers and scientists actively engaged in the study of adsorption and the development and application of efficient adsorption technology for water treatment. This e-book covers a wide range of topics including modeling aspects of adsorption process and the applications of conventional and non-conventional adsorbents in water remediation emphasizing sorption mechanisms of different pollutants on the adsorbents.

Download or read book Waste PET MOF Cleanwater written by Jianwei Ren and published by UJ Press. This book was released on 2022-11-10 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In counties like South Africa, firstly, the waste PET stream has posed a serious problem to the environment, and the current recycling of waste PET remains as low as 30%. The waste PET recycling industries such as PETCO & Extrupet (South Africa) are struggling to implement innovative processes to make cooperate more profitable. Secondly, metal-organic frameworks (MOFs) as a new class of porous materials, the MOFs-based water treatment holds the promises to provide cost-effective solutions dealing with the polluted water. However, the high costs of MOFs production have raised a challenge for its effective implementations. Given that, cross-cutting advances in materials and engineering will help to solve those societal challenges. To maintain the world-class research and development associated with human capacity in South Africa, this multidisciplinary and transdisciplinary work has been strengthened along with the basic-applied research continuum under the frame of South Africa (NRF)/Poland (NCBR) Joint Science and Technology Research Collaboration.