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Download or read book Recovery of Mercury from Acid Waste Residues written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury can be recovered from nitric acid-containing fluids by reacting the fluid with aluminum metal to produce mercury metal, and then quenching the reactivity of the nitric acid prior to nitration of the mercury metal.
Author : Richard Perry
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.F/5 ( download)
Download or read book Mercury Recovery from Contaminated Waste Water and Sludges written by Richard Perry and published by . This book was released on 1974 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : DIANE Publishing
ISBN 13 : 1422331342
Total Pages : 84 pages
Book Rating : 4.4/5 (223 download)
Download or read book Removal of Mercury from Dental Office Wastewater written by and published by DIANE Publishing. This book was released on with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Litton Systems, Inc. Environmental Systems Division
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (3 download)
Download or read book Industrial Waste Study: Mercury-using Industries written by Litton Systems, Inc. Environmental Systems Division and published by . This book was released on 1971 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ivan C. Smith
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Control of Mercury Pollution in Sediments written by Ivan C. Smith and published by . This book was released on 1972 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (31 download)
Download or read book Arsenic and Mercury written by and published by . This book was released on 1992 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Environmental Protection Agency
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (273 download)
Download or read book Mercury and Arsenic Wastes written by United States. Environmental Protection Agency and published by . This book was released on 1993 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald L. Michelsen
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (31 download)
Download or read book Removal of Soluble Mercury from Waste Water by Complexing Techniques written by Donald L. Michelsen and published by . This book was released on 1975 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery and Removal of Mercury from Mixed Wastes. Final Report, September 1994--June 1995 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recognition of the major environmental problem created by mercury contamination of wastes and soils at an estimated 200,000 sites along US natural gas and oil pipelines and at a number of government facilities, including Oak Ridge, Savannah River, Hanford, and Rocky Flats, the US Department of Energy (DOE) is seeking an effective and economical process for removing mercury from various DOE waste streams in order to allow the base waste streams to be treated by means of conventional technologies. In response to the need for Unproved mercury decontamination technology, Mercury Recovery Services (MRS) has developed and commercialized a thermal treatment process for the recovery of mercury from contaminated soils and industrial wastes. The objectives of this program were to: demonstrate the technical and economic feasibility of the MRS process to successfully remove and recover mercury from low-level mixed waste containing mercury compounds (HgO, HgS, HgCl[sub 2]) and selected heavy metal compounds (PbO, CdO); determine optimum processing conditions required to consistently reduce the residual total mercury content to 1 mg/kg while rendering the treated product nontoxic as determined by TCLP methods; and provide an accurate estimate of the capital and operating costs for a commercial processing facility designed specifically to remove and recovery mercury from various waste streams of interest at DOE facilities. These objectives were achieved in a four-stage demonstration program described within with results.
Author : Dr Papita Saha
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783843381901
Total Pages : 68 pages
Book Rating : 4.3/5 (819 download)
Download or read book Detoxification of Waste Containing Mercury Using Chemical Methods written by Dr Papita Saha and published by LAP Lambert Academic Publishing. This book was released on 2010-12 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chloro - Alkali Industry is the major consumer of mercury as these types of Industry using the conventional Mercury Cell process where a large quantity of Solid waste containing Mercury and Chlorinated mercury compounds are generated. Disposal of these solid waste are very difficult throughout the world as well as India also. Primary experiment shows that the sludge disposed by a Choloro Alkali Industry situated in West Bengal, India contain around 130 mg/kg of total mercury. To extract mercury from the sludge, chemical oxidation and complex formation to dissolve mercury in aqueous phase from brine sludge is used. From the aspects of economic consideration and effectiveness of mercury recovery, it is observed that chlorine treatment is suitable over the other. By chlorine treatment about 65% of mercury can be recovered in normal temperature from the sludge. Using Hydrochloric acid about 76% of mercury can be recovered but chlorine treatment process would be both cost effective and technically feasible for commercial purposes as Chloro - Alkali Industry produced chlorine and it is rejected as istage in the Chloro - Alkali Industry.
Author : United States. Environmental Protection Agency
Publisher : William Andrew
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.3/5 (91 download)
Download or read book Mercury and Arsenic Wastes written by United States. Environmental Protection Agency and published by William Andrew. This book was released on 1993-12-31 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides state-of-the-art information on removal, recovery, treatment, and disposal of mercury and arsenic wastes, based on a workshop held in Alexandria, Virginia in August 1992. The goals of the workshop were: 1) to examine the fundamentals and analytical issues related to mercury and arsenic compounds; 2) to disseminate information on the state of practice of source reductiontechnologies that recover or remove mercury and arsenic from industrial wastes'and recycling or reuse processes; and 3) to discuss existing and emerging technologies that treat industrial wastes or contaminated soil and water, and the storage and disposal of treated wastes. The book is presented in two parts Mercury and Arsenic and contains extended summaries of papers presented at the workshop. The areas covered are fundamentals, analytical techniques/characterization; removal, recovery, and reuse; and treatment, storage, and disposal.
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Author :
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (966 download)
Download or read book Mercury Recovery from Contaminated Waste Water and Sludges [with Lists of References] written by and published by . This book was released on 1974 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karolina Wieszczycka
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110547066
Total Pages : 297 pages
Book Rating : 4.1/5 (15 download)
Download or read book Metals in Wastes written by Karolina Wieszczycka and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-07-23 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author :
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (683 download)
Download or read book Extraction and Recovery of Mercury and Lead from Aqueous Waste Streams Using Redox-active Layered Metal Chalcogenides. 1998 Annual Progress Report written by and published by . This book was released on 1998 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury and other highly-toxic heavy metals such as cadmium and lead are present in many aquatic environments, and the remediation of such environments or the avoidance of heavy-metal contamination in the first place is an area of active interest. In recent years tougher environmental regulations and the high initial cost of new, more effective, and more selective extractants has made the reuse of extractant materials and the minimization of secondary waste volume a focus of their scientific effort. The authors research has involved the investigation of redox-active layered metal chalcogenides as selective, effective, and redox-recyclable extractants for heavy metals from aqueous solution.
Author :
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (112 download)
Download or read book Mercury and Arsenic Wastes written by and published by . This book was released on 1993 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (684 download)
Download or read book RECOVERY OF MERCURY FROM CONTAMINATED PRIMARY AND SECONDARY WASTES. written by and published by . This book was released on 2000 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective removal of mercury contamination from water is a complex and difficult problem. In particular, mercury treatment of natural waters is difficult because of the low regulatory standards. For example, the Environmental Protection Agency has established a national ambient water quality standard of 12 parts-per-trillion (ppt), whereas the standard is 1.8 ppt in the Great Lakes Region. In addition, mercury is typically present in several different forms, but sorption processes are rarely effective with more than one or two of these forms. To meet the low regulatory discharge limits, a sorption process must be able to address all forms of mercury present in the water. One approach is to apply different sorbents in series depending on the mercury speciation and the regulatory discharge limits. Four new sorbents have been developed to address the variety of mercury species present in industrial discharges and natural waters. Three of these sorbents have been field tested on contaminated creek water at the Y-12 Plant. Two of these sorbents have demonstrated very high removal efficiencies for soluble mercury species, with mercury concentrations at the outlet of a pilot-scale system less than 12 ppt for as long as six months. The other sorbent tested at the Y-12 Plant is targeted at colloidal mercury that is not removed by standard sorption or filtration processes. At the Y-12 Plant, colloidal mercury appears to be associated with iron, so a sorbent that removes mercury-iron complexes in the presence of a magnetic field was evaluated. Field results indicate good removal of this mercury fraction from the Y-12 waters. In addition, this sorbent is easily regenerated by simply removing the magnetic field and flushing the columns with water. The fourth sorbent is still undergoing laboratory development, but results to date indicate exceptionally high mercury sorption capacity. The sorbent is capable of removing all forms of mercury typically present in natural and industrial waters, including Hg21, elemental mercury, methyl mercury, and colloidal mercury. The process is also showing very fast kinetics, which allows for higher flow rates and smaller treatment units.
Author : Adam Douglas Jew
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (828 download)
Download or read book Stability, Transformations, and Fate of Residual Mercury at the Inoperative New Idria Mercury Mine, New Idria, California written by Adam Douglas Jew and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury mining in the California Coast Range has resulted in over a thousand mercury mines of various sizes that have yet to be remediated and are potential point sources of Hg pollution. The New Idria mine, located in San Benito County, California, was the second largest mercury mine in North America and was not remediated following its closure in 1972. Only within the past two years has it been designated as an EPA Superfund site and is currently undergoing remediation. This thesis focuses on the stability of mercury remaining at the site, the types of mercury phases present at the site as well as downstream from it, and the transport of mercury from the site. The stability of cinnabar (HgS), the primary mercury-bearing phase at the New Idria mine and other mercury mines in the California Coast Range, was investigated in the presence of microorganisms found in the acid mine drainage (AMD) system at the site. Geomicrobiological and geochemical studies of the identity and effects of these microorganisms on the solubility of HgS identified Thiomonas species and showed that the AMD bacterial consortium significantly enhances the solubility of cinnabar and metacinnabar, the two common HgS crystalline phases present. These two phases are very insoluble (Ksp = 10^-54 and 10^-52, respectively) in the absence of these bacteria and are often considered to be relatively nonbioavailable. The phases of mercury present in the waste piles and downstream sediments were analyzed using a combination of sequential chemical extractions and synchrotron-based techniques, including a new low-temperature extended x-ray absorption fine structure (EXAFS) spectroscopy method developed in this project. This new method allows, for the first time, quantification of the amount of elemental mercury present in complex mine waste samples and associated sediments that contain a variety of Hg-bearing phases. When coupled with field- and lab-based evasion studies of Hg vapor from mine wastes, this new approach showed that high mercury evasion rates into the atmosphere from the New Idria and other Hg mine sites in the California Coast Range can be positively correlated with high levels of elemental Hg in the mine wastes. Another new discovery from this study is that freshwater diatoms in the New Idria drainage system are one of the major sinks for mercury. Selective chemical extraction and EXAFS studies of the species of mercury associated with diatom frustules showed that these frustules can stably sequester mercury in low bioavailability forms. These studies also showed that the abundant iron-(oxy)hydroxide (ferrihydrite) nanoparticles present in the New Idria drainage system have very little associated mercury, which contradicts long-held assumptions that sorption of Hg(II) on these nanoparticles is a major Hg sequestration and transport mechanism in the New Idria drainage system. A general conclusion from this study is that the majority of mercury in the New Idria drainage system is in relatively stable, low bioavailability forms. The understanding gained from this study of the stability, forms, and transport of mercury at the New Idria site can be extrapolated to other similar inoperative mercury mine sites in the California Coast Range and should aid in their future remediation efforts.
