The Recovery Of Metals From Electroplating Wastes Using Liquid Liquid Extraction PDF Download

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Metal Recovery from Industrial Waste

Metal Recovery from Industrial Waste
Author: Clyde S. Brooks
Publisher: CRC Press
Total Pages: 193
Release: 2018-01-18
Genre: Technology & Engineering
ISBN: 1351091352

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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.


Metals in Wastes

Metals in Wastes
Author: Karolina Wieszczycka
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 337
Release: 2018-07-23
Genre: Technology & Engineering
ISBN: 3110546523

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Metals in Wastes is an excellent guide for scientists, students, engineers, chemists, and industrial chemists who are looking for knowledge of the main sources of metals in industrial wastes. Metals are valuable materials that can be recycled again and again without degrading their properties. The recycling of metals enables us to preserve natural resources while requiring less energy to process than the manufacture of new products using virgin raw materials. A team of experts reviews the state-of-the-art and provides the readers not only with a comprehensive in-depth overview of the main composition of wastes but also discloses innovative methods which have been applied for recovery of critical and valuable metals in petrochemical industry, rubber, energy and automotive industries. This know-how could be considered as a useful reference tool for moving towards the zero-waste economy. Additionally, the book describes the economic aspects of metals recovery from various sources. This is essential for those already involved in the metals business and also for the financial, investment and advisory community internationally.


Sustainable Metal Extraction from Waste Streams

Sustainable Metal Extraction from Waste Streams
Author: Garima Chauhan
Publisher: John Wiley & Sons
Total Pages: 308
Release: 2020-02-27
Genre: Technology & Engineering
ISBN: 3527826718

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Provides a comprehensive overview on developing sustainable practices for waste minimization via green metal extraction from waste streams This book introduces readers to sustainable management and defines the challenges as well as the opportunities in waste stream management. It starts by covering conventional technologies for metal extraction then focuses on emerging tools and techniques such as green adsorption, bioleaching, and chelation. It also discusses the scale-up and process intensification of metal extraction from waste streams from process design to pilot plan. Sustainable Metal Extraction from Waste Streams begins by covering sustainability-related constructs and illustrates the pre-requisites for sustainable management of waste streams. It then introduces the basics of solid waste handling, ranging from an analysis of the relevance, categories of wastes, consequences of untreated waste disposal into the environment, government initiatives, management strategies, and unit operations for pre-treatment of wastes. The book also looks at widely accepted, conventional metal extraction technologies like hydro and pyro metallurgical methods; discusses the possibility of sustainable green processes for metal extraction; and introduces the recently deployed coiled flow inverter process. -Provides a comprehensive collection of the conventional, emerging, and future technologies for metal extraction from industrial waste and electrical & electronic equipment in a sustainable way -Demonstrates trans-disciplinary research as an executable direction to achieve the sustainable governance of natural resources and solid waste management -Presents a dedicated section on scale-up and process intensification of metallurgical processes -Summarizes various aspects of novel processes ranging from basic concepts, benchmark performance of technologies on lab scale, and recent research trends in metal extraction Covering a variety of interdisciplinary topics on resource optimization and waste minimization, Sustainable Metal Extraction from Waste Streams is an excellent resource for engineers, science students, entrepreneurs, and organizations who are working in the field of waste management and wish to gain information on upcoming sustainable processes.


An Investigation of Techniques for Removal of Cyanide from Electroplating Wastes

An Investigation of Techniques for Removal of Cyanide from Electroplating Wastes
Author: A. K. Reed
Publisher:
Total Pages: 104
Release: 1972
Genre: Cyanides
ISBN:

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Increasingly stringent stream discharge regulations have prompted an assessment of the current technology available for application to the metal finishing waste treatment problem, specifically in regard to smaller operations. Experimental laboratory and bench scale studies were then conducted on several unconventional wastewater treatment methods, including ion flotation, activated carbon adsorption, acidification volatilization, and solvent extraction. A demonstration pilot plant study was also conducted on the activated carbon process employing actual rinse waters from a zinc cyanide plating operation. The pilot scale activated carbon system was operated at 99% efficiency of cyanide removal, while providing for the complete recovery and regeneration of copper. Cost estimates for carbon sorption process are given.


Optimum Dewatering and Metal Recovery of Metal Plating Waste Sludges

Optimum Dewatering and Metal Recovery of Metal Plating Waste Sludges
Author: John Holroyd
Publisher:
Total Pages: 71
Release: 1978
Genre: Electroplating
ISBN:

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Bench scale experimentation was initiated to evaluate the solubilities and sludge characteristics associated with selected heavy metals and their hydroxides for both homogeneous and heterogeneous solutions. Data suggests that in a mixed-metal solution, mixed-metal co-precipitants form and the point of zero charge (PZC) for these precipitants depends upon the specific metal content of the colloidal precipitants. In general the presence of chromium (III) depresses the overall PZC while nickel and cadmium, when major waste components, tend to raise the PZC. Aging was found to impact chromium hydroxide dewatering but it is not clear that the theoretical aspects of aging chemistry can be used to predict changes. High molecular weight anionic polymers were effective in conditioning metal sludges with respect to cake formation/filtrate clarity but help dewatering rates very little. Previously developed relationships for inorganic sludges which allowed predictions about sand bed, centrifugation, and vacuum filtration dewatering processes based on gravity thickening data were found to hold for metal sludges. Based on these relationships and the laboratory data gathered here it is concluded that vacuum filtration is the only reasonable process to insure a handleable sludge. If direct reclamation of the metals from the mixed hydroxide slurry is to be attempted centrifugation may be employed. Based on a literature review and a basic economic evaluation, liquid/liquid extraction was recommended for further study as the metal recovery process of choice. (Author).


Metals Speciation, Separation, and Recovery, Volume Two

Metals Speciation, Separation, and Recovery, Volume Two
Author: Gary Thomas Patterson
Publisher: CRC Press
Total Pages: 658
Release: 1990-04-30
Genre: Science
ISBN: 9780873712682

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By and for engineers and scientists, this comprehensive book covers all aspects of metals chemistry, separation chemistry, and metals separation processes. State-of-the-art papers give news and recent developments and future research needs, of special value and interest to persons from industry, academia, government agencies, commercial and research institutes, information centers and libraries. This valuable work is the complete proceedings of the Metals Speciation, Separation and Recovery International Symposium sponsored by the Industrial Waste Elimination Research Center at the Illinois Institute of Technology, Chicago, Illinois, and the Water Research Institute of the Italian National Research Council, Rome, Italy, held in Rome, May 14-19, 1989. The book will be about 800 pages replete with drawings, tables, and charts helpful to understanding and use of the information presented. Written by some 50 specialists from leading institutions and companies from Europe, Asia, North and Latin America, choice information and data in this valuable new volume are organized into seven major parts: One: Chemistry of Toxic Metals; Two: Precipitation Phenomena; Three: Metal Speciations and Complexation in Natural Systems; Four: Sorption Onto Surfaces; Five: Ion Separation; Six: Soils Contamination and Decontamination; Seven: Waste Reduction and Recovery Case Studies. Index.