Download or read book Treatment and Recovery of Heavy Metals from Acid Mine Drainage Using Polymer Chelation and Membrane Filtration written by and published by . This book was released on 1993 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process considered in this study is based on the use of sequestering or chelating agents, with emphasis on water-based macromolecular compounds, which demonstrate selectivity for the extraction of copper, lead, zinc, and cadmium, coupled with an appropriate membrane that would effectively separate the organic metal complex and allow the metal-free aqueous phase to permeate through the membrane as a treated effluent. The process design has the objectives of generating a concentrate which would contain close to 100 percent of the metal chelates in the solution which could then be acidified in order to recover the metals from the chelants, allowing both the metals and the chelants to be reused. The method of the polymer binding-membrane filtration was evaluated for the removal of heavy metals from acid mine drainage. The experimental studies were done on bench-scale level using both actual and synthetic mining effluents. The report includes test results, discussion, and recommendations for future work.
Download or read book Treatment of Acid Mine Drainage by Reverse Osmosis written by Rex Chainbelt, inc. Technical Center and published by . This book was released on 1970 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Charged Membrane Low Pressure Ultrafiltration to Treat Acid Mine Drainage Waters written by Dibakar Bhattacharyya and published by . This book was released on 1979 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acid Mine Drainage Treatment by Nanofiltration Membranes written by Bartomeu Servera Salas and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study is to evaluate the rejection of different elements in acid mine drainage (AMD), specifically metals, by means of nanofiltration (NF) membranes. AMD is characterised by its high acidity and high concentration of metals and sulphate. These aspects make AMD treatment a point of interest for industry and society. The main reasons for that are that being able to properly treat AMD and separate the different metals dissolved allows its recovery and reuse. Furthermore, proper treatment via NF increases water quality, as it decreases the concentration of dissolved metals, diminishing the effect they have on animals and plants when discharged into the environment. Experiments were carried out in a laboratory-scale plant, based on a flat sheet membrane with recirculation of permeate and concentrate to the feed tank. A total of 9 experiments were designed, in order to study rejection of different species varying pH solution and concentration of aluminium or iron. The solutions were prepared to resemble AMD, including different metals (aluminium, zinc, copper...) and rare earth elements (REE) (lanthanum, neodynium...). Sample composition was analysed via ICP by the Institut de Diagnosi Ambiental i Estudis d'Aigüa (IDAEA) of the Consejo Superior de Investigaciones Científicas (CSIC). After obtaining the rejection, data were modelled using the Solution-Diffusion-FilmModel, plotting dominant salt and trace ion rejection depending on the trans-membrane flux. This model also allowed permeability of single trace ions to be calculated, comparing experimental and theoretical values. The results obtained show that addition of metals in the solution affect rejection of the species in the solution, as sulphate forms complexes with metal ions. As iron and aluminium concentrations increased, rejection was generally increased. This also supports the theory that divalent ions show higher rejection than monovalent ions. Finally, experimental costs and environmental impact were addressed.
Download or read book Design Manual written by Industrial Environmental Research Laboratory (Cincinnati, Ohio) and published by . This book was released on 1983 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotating Disc Biological Treatment of Acid Mine Drainage written by Harvey Olem and published by . This book was released on 1980 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Preliminary Evaluation to Determine Whether Supported Liquid Membrane Technology is a Viable Technique to Recover Metals from Acid Mine Drainage written by R. A. J. May and published by . This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many streams from mine sites in N.B. contain significant quantities of heavy metals which might be recovered. At present, the effluent is treated by adding either lime or limestone to the stream and precipitating dissolved heavy metals as hydroxides and sulphate as gypsum. One novel method to recover dissolved metals is solvent extraction using supported liquid membrane technology, a technique which appears to offer economic potential. While it has not been tried in the mining industry, variations of it are used in the food and pharmaceutical industries. This study determined whether supported liquid membrane technology is a viable method for recovering metals, particularly zinc, from acidic drainage streams. Experiments were carried out with a laboratory membrane mediated test unit.
Download or read book Hybridized Technologies for the Treatment of Mining Effluents written by Elvis Fosso-Kankeu and published by John Wiley & Sons. This book was released on 2023-07-19 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: HYBRIDIZIED TECHNOLOGIES FOR THE TREATMENT OF MINING EFFLUENTS The main goal of this book is to review the principles, development, and performances of hybridized technologies that have been used for the treatment of mine effluents. Recent developments consist of the integration/hybridization of technologies to achieve the effective removal of pollutants from acid mine drainage (AMD) effluents in a stepwise manner such as to ensure that the cost of the process is minimized, and the resulting water is fit for purpose. This book presents eight specialized chapters that provide a state-of-the-art review of the different hybridized technologies that have been developed over the years for the treatment of mine effluent, including AMD. The successful implementation and challenges of these technologies are highlighted to give the reader a perspective on the management of such waste in the mining industry. In this innovative book, readers will be introduced to The limitations of passive and active treatment processes as stand-alone technologies while appraising the functioning and performances of these technologies when combined to address their challenges; The numerous approaches that have been considered over the years for effective combination of these technologies are explored taking into account their successful implementation at large scale as well as the long-term sustainability. Audience This book will be of interest to academic researchers from the fields of environment, chemistry, engineering, mineral processing, hydrometallurgy, geochemistry, and professionals including mining plant operators, environmental managers in the industries, water treatment plants managers and operators, water authorities, government regulatory bodies officers and environmentalists.
Download or read book A Preliminary Evaluation to Determine Whether Supported Liquid Membrane Technology is a Viable Technique to Recover Metals from Acid Mine Drainage written by Richard May and published by [Fredericton] : New Brunswick, Natural Resources and Energy. This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acid Mine Drainage Treatment by Ion Exchange by Jim Holmes and Ed Kreusch written by Jim Holmes and published by . This book was released on 1972 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Heavy Metals from Industrial Wastewaters Using Insoluble Starch Xanthate written by Robert E. Wing and published by . This book was released on 1978 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Removal of Trace Elements from Acid Mine Drainage written by Industrial Environmental Research Laboratory (Cincinnati, Ohio) and published by . This book was released on 1979 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concentrated Mine Drainage Disposal Into Sewage Treatment Systems written by Environmental Research & Applications, Inc and published by . This book was released on 1971 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Techniques for Treatment of Toxic Metals from Wastewater written by Akil Ahmad and published by Elsevier. This book was released on 2022-08-27 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Techniques for Treatment of Toxic Metals from Wastewater explores the different physical and chemical methods that can be used to remove toxins from wastewater, including adsorption, solvent extraction, ion exchange, precipitation, filtration and photocatalytic degradation. Bringing together contributions from leading experts in the field, the book covers each of the different techniques in detail, combining emergent research outcomes with fundamental theoretical concepts to provide a clear appraisal of the different techniques available, along with their applications. It is an essential recourse for researchers, industrialists and students concerned with the remediation of toxic metals from water and wastewater. Covers the various techniques for metal removal and their applications in a single source Addresses emerging technologies; chemical, physical, and biological including nanotechnology Brings together novel techniques and their applications for enhancing large scale industrial production signposting opportunities for significant enhancements
Download or read book Government Reports Annual Index written by and published by . This book was released on 1995 with total page 1686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Removal of Toxic Metals and Recovery of Acid from Acid Mine Drainage Using Acid Retardation and Adsorption Processes written by Yvonne Nleya and published by . This book was released on 2016 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 1502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
