Download or read book Recovery of Copper Chromium and Nickel from Electroplating Effluent by Electrochemical Technique written by Mali Hunsom and published by . This book was released on 2001 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical feasibility study on the chromium recovery from electroplating effluents written by Daniel Wiemken and published by diplom.de. This book was released on 2014-04-11 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Introduction: Rapid industrialisation and growth in population over the past two hundred years exert an increasing pressure on natural resources and the environment. Billions of tons of controlled and scheduled waste are generated every year by the industrial sector worldwide which is often either pre-treated on-site or at a licensed contractor prior to disposal in landfills. This practice if continued is leading to resource depletion and creates a potentially harmful legacy for future generations. In order to move towards a more sustainable development as outlined in the Bruntland Report, waste reduction, reuse and recycling coupled with pollution prevention measures play an important part to slow down if not reverse this practice. Heavy metals such as cadmium, mercury, lead and chromium are not degradable or renewable like biomass hence if they are to be used in future processes reuse and recycling are the only options. At present, heavy metals are used in the chemical industry sector for applications ranging from batteries to catalysts and surface coatings, and can be found at various concentrations in gaseous, liquid or solid waste. Chromium is of particular interest owing to its legislative status and unique chemistry. Chromium exists in nature primarily in one of two oxidation states. There are other chemical oxidation states of chromium, which include 0, II, IV, and V, but they are considered transitory compared to more stable Cr(III) and Cr(VI) species. Hexavalent chromium is a strong oxidizer which can react with DNA causing mutation, while the trivalent, organically complex form is a dietary supplement to help with proper glucose metabolism, weight loss and muscle tone. Unlike many other metals, Cr(VI) can combine with oxygen to form water-soluble, negatively charged anions known as yellow chromate (CrO42-) or orange dichromate (Cr2O72-), which adsorb to positively charged sites in contrast to cationic metal species. Therefore, hexavalent chromium species are not strongly bonded in many soils under alkaline to slightly acidic conditions, for example. Thus, they can be very mobile in subsurface environment while other metals precipitated out and exert toxic effects on biological systems. Various well-established methods may be used to treat industrial effluents and contaminated water such as reduction and precipitation, reverse osmosis, evaporation, ion exchange and adsorption. While these processes are able to remove [...]
Download or read book Electrolytic Treatment of Job Shop Metal Finishing Wastewater written by Bruce E. Warner and published by . This book was released on 1975 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Removal and Recovery from Mining Wastewater and E waste Leachate written by Suthee Janyasuthiwong and published by CRC Press. This book was released on 2020-02-18 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal contamination in the environment is a persisting global issue. The metal reservoirs in the earth have declined due to society’s needs and due to uncontrolled mining activities. Therefore, the idea to recover metals from waste streams has emerged. In this thesis, cost competitive technologies such as adsorption using agro-wastes and precipitation using an inverse fluidized bed (IFB) reactor were investigated, with special emphasis on the recovery of base metals. Groundnut shell showed good potential for metal (Cu, Pb and Zn) removal. From artificial neural network modeling, the performance of the sulfate reducing bacteria (SRB) was found to be strongly pH dependent; the removal efficiency of Cu and Zn in the IFB at pH 5.0 was >97%. Electronic waste is a good candidate as secondary metal resource. The recovery of Cu from computer printed circuited boards (PCBs) using biogenic sulfide precipitation was investigated as well. Using this technology, Cu could be recovered at ~0.48 g Cu/g PCBs.
Download or read book Ion Exchange Technology II written by Dr. Inamuddin and published by Springer Science & Business Media. This book was released on 2012-06-05 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion-exchange Technology II: Applications presents an overview of the numerous industrial applications of ion-exchange materials. In particular, this volume focuses on the use of ion-exchange materials in various fields including chemical and biochemical separations, water purification, biomedical science, toxic metal recovery and concentration, waste water treatment, catalysis, alcohol beverage, sugar and milk technologies, pharmaceuticals industry and metallurgical industries. This title is a highly valuable source not only to postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology as well as to engineers and industrialists.
Download or read book Electrochemical Recovery of Nickel from Nickel Sulfamate Plating Effluents written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Electrochemical Reduction Process for the Recovery of Copper Powder from a Refinery Effluent Stream written by Chandon Bezuidenhout and published by . This book was released on 2014 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years a significant amount of research has gone into the development of a feed pretreatment process for the concentrate refined at Anglo American Platinum's Precious Metals Refiners (PMR). Such a process has the potential to significantly simplify the downstream refining process and reduce the number of unit processes required for purification. One of the considered options involves a high temperature oxidative roast process followed by a high temperature hydrochlorination process to volatilise base metal chlorides and other impurities. The resulting precious group metal (PGM) concentrate is cleaner and thus requires significantly less process steps to final product. The off-gas from hydrochlorination contains predominantly silver, copper, nickel and iron. This off-gas undergoes a quench-scrub to condense the base metal chlorides. The quench-scrub liquor undergoes a dechlorination process with sulfuric acid to precipitate AgCl(s). The filtrate from this process then undergoes an electrochemical reduction process to recover copper metal concentrate. The objectives of this study were to: i. Determine the operating conditions for an electrochemical reduction process aimed at recovering copper as a copper powder from a sulfuric acid stream containing copper, nickel and iron. ii. Develop a conceptual flowsheet for a batch electrochemical process and estimate the capital cost and operating cost.
Download or read book Metal Recovery from Industrial Waste written by Clyde S. Brooks and published by CRC Press. This book was released on 2018-01-18 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is offered as a practical primer on the hydrometallurgy of nonferrous metal reclamation from industrial wastes, as well as a brief discussion of pyrometallurgy, biological, and other separation processes. The objectives are to acquaint nontechnical readers with the subject as well as providing a detailed survey of current research and industrial practice to technical readers concerned with the management of industrial waste.
Download or read book Advances in Environmental Electrochemistry written by Dipak Ashok Jadhav and published by Elsevier. This book was released on 2024-03-21 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Environmental Electrochemistry provides the basics of environmental electrochemistry, including redox reactions for contaminant removal, bio-electrochemical systems, electrochemical reactor design and the various electrochemistry-based techniques for practical wastewater degradation, environmental remediation and bioenergy recovery from waste. Technologies acting as key indicators for addressing the various aspects of environmental electrochemistry are covered, along with comparisons to conventional methods and potential ways forward. This book will be of interest to chemical engineers, environmental engineers, and all those interested in environmental biotechnology, bio-electrochemical systems, electrochemical sensors, advanced oxidation processes, biological wastewater treatment, and waste to energy recovery. - Covers advances in bio-electrochemical systems for wastewater treatment and resource recovery. - Explains the role of electrochemistry and electrochemical techniques in environmental bioremediation. - Includes life cycle analysis and technoeconomic assessment of electrochemical-based reactors for environmental monitoring.
Download or read book Electrochemical Membrane Technology for Water and Wastewater Treatment written by Zhiwei Wang and published by Elsevier. This book was released on 2022-04-04 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical membrane technology has drawn extensive attention worldwide during the past decade in water and wastewater treatment. Coupling electrochemical process with membrane technology not only enables a higher removal or decomposition of pollutants in waters, but also ensures a more effective control of membrane fouling as well as a more highly selective separation process. The recent development of electrochemical membrane technology has also extended its applications in desalination, energy harvest, and resource recovery from seawater and wastewaters. Electrochemical Membrane Technology for Water and Wastewater Treatment consolidates state-of-the-art research developments in electrochemical membrane technology in water reclamation and sustainability in terms of fundamental theories, membrane and electrode materials, reactor designs, fouling control mechanisms and applications. Electrochemical Membrane Technology for Water and Wastewater Treatment also introduces fundamental theories and applications of electrochemical membrane technology. The knowledge gaps and future research perspectives in electrochemical membrane technology are also addressed. This book is an excellent resource for the understanding of fundamental theories, latest developments and future prospects in electrochemical membrane technology, which can benefit a broad audience of researchers and engineers working in water purification, membrane technology and electrochemical process. - Consolidates scattered knowledge of electrochemical membrane technology into a more accessible resource - Provides a comprehensive review of fundamental theories, membrane materials and module design as well as the latest developments of electrochemical membrane technology - Provides the state-of-art review on the applications of electrochemical membrane technology - Includes detailed discussion on the challenges and prospects of electrochemical membrane technology in different applications
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waste Treatment in the Metal Manufacturing Forming Coating and Finishing Industries written by Lawrence K. Wang and published by CRC Press. This book was released on 2016-04-19 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive in its scope and directly applicable to daily waste management problems of specific industries, Waste Treatment in the Metal Manufacturing, Forming, Coating, and Finishing Industries covers hazardous industrial waste treatment, renovation, and reuse in the metal manufacturing, forming, coating, enameling, and finishing industries. It
Download or read book Development document for the final effluent limitations guidelines and standards for the metal products and machinery point source category written by and published by DIANE Publishing. This book was released on with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Treatment by Reverse Osmosis Process written by Mudhar Al-Obaidi and published by CRC Press. This book was released on 2020-02-25 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wastewater Treatment by Reverse Osmosis Process provides a one-stop-shop for reverse osmosis (RO), outlining its scope and limitations for the removal of organic compounds from wastewater. This book covers the state-of-the-art on RO processes and describes ten RO process models of different features and complexities. It also covers the advanced model-based techniques for RO process operations, including various rigorous methods for process modelling, simulation, and optimization at the lowest energy cost, as well as advanced tools such as genetic algorithms for achieving the same. • Highlights different types of physico–chemical and biological wastewater treatment methods including hybrid systems • Provides an overview of membrane processes, focuses on different types of membrane processes for water treatment and explains characteristics of membrane modules • Introduces the importance and challenges of process modelling for simulation, design, and optimization and offers examples across various industries •Describes the concept of different types of genetic algorithms for process optimisation and provides the state-of-the art of the GA method in terms of its application in water desalination and wastewater treatment •Emphasizes economic aspects of RO processes for wastewater treatment With its focus on the challenges posed by an increasing demand for fresh water and the urgent need to recycle wastewater at minimum cost, this work is an invaluable resource for engineers and scientists working within the field of wastewater treatment.
Download or read book Sustainable Development of Water and Environment written by Han-Yong Jeon and published by Springer Nature. This book was released on 2020-06-13 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on water resources and the economic, financial, social and environmental impacts (ICSDWE) of global warming and climate change. It discusses the links between these aspects and presents cutting-edge research, technology, and practice in these fields. The book is a valuable resource for students and researchers at government organizations, academic institutions, and NGOs.
Download or read book Electrodialysis and Water Reuse written by Andréa Moura Bernardes and published by Springer Science & Business Media. This book was released on 2013-08-30 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents novel techniques to evaluate electrodialysis processes, to synthesize ionic membranes and to characterize their properties. It shows the potential use of membrane process to the treatment of effluents generated in many industrial sectors such as refineries, leather industries, mining and electroplating processes. The book is based on the results obtained by the author's research group during the past decade. It is useful for students, researchers and engineers interested in membrane technologies for water reuse.
Download or read book Bioremediation of Toxic Metal loid s written by Anju Malik and published by CRC Press. This book was released on 2022-11-30 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book, Bioremediation of Toxic Metal(loid)s, describes the state-of-the-art and potential of emerging technologies on bioremediation of toxic metal(loid)s. It has a compilation of the available comprehensive knowledge of the fundamentals and advancements in the field of bioremediation of toxic metal(loid)s. The mechanisms, applications, and current advancements of various bioremediation strategies used for metal(loid)s have been described in 21 chapters contributed by leading experts from different institutes, universities, and research laboratories from various countries across the globe including Argentina, Canada, Chile, Colombia, France, India, Japan, Republic of Korea, the United Kingdom, and the United States of America. This book offers a bird’s eye view on various bioremediation technologies based on a variety of biological agents viz. plants, bacteria, algae, fungi etc., used for environmental clean-up of toxic metal(loid)s.
