Microbial Stabilization Of Sulfur Laden Sorbents Technical Report March 1 1994 May 31 1994

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Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, March 1, 1994--May 31, 1994

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ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (682 download)

Book Synopsis Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, March 1, 1994--May 31, 1994 by :

Download or read book Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, March 1, 1994--May 31, 1994 written by and published by . This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean coal technologies that involve limestone for sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spent sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species requires additional processing. Thermal oxidation of reduced sulfur can result in undesirable release of SO2. Microbial oxidation might provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide, sulfite, or various polythionate species serve as growth substrates for sulfur-oxidizing bacteria, which have the potential to convert all sulfur to sulfate. This quarter work continued with the solid phase of a spent slurry from an inhibited scrubber. The material was primarily CaSO3·1/2H2O. The authors did not detect growth of any bacterial strain in salts medium with the solid phase as the source of sulfur. However, unlike strains of Thiobacillus neapolitanus, the isolate TQ, was not inhibited by the solid phase. Evidence suggests that this organism grows slowly on low concentrations of sulfite.

Rosenkräntzlein, bestehend in 9 Vatter unser und 9 Ave Maria, 9 Täg, oder 9 Mittwochen nach einander zu Ehren des H. Cajetani Tienne andächtig zu sprechen

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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (634 download)

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Download or read book Rosenkräntzlein, bestehend in 9 Vatter unser und 9 Ave Maria, 9 Täg, oder 9 Mittwochen nach einander zu Ehren des H. Cajetani Tienne andächtig zu sprechen written by and published by . This book was released on 1800 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, 1 December 1993--28 February 1994

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ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (685 download)

Book Synopsis Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, 1 December 1993--28 February 1994 by :

Download or read book Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, 1 December 1993--28 February 1994 written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean coal technologies that involve limestone for sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spend sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species required additional processing. Thermal oxidation of reduced sulfur can result in undesirable release of SO2. Microbial oxidation might provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide, sulfite, or various polythionate species serve as growth substrates for sulfur-oxidizing bacteria, which have the potential to convert all sulfur to sulfate. This quarter, efforts focused on treating the aqueous phase of a waste sorbent obtained from an inhibited wet scrubbing process. Although two named strains, Thiobacillus neapolitanus ATCC 23639 and ATCC 23641, failed; the isolate TQ1 rapidly oxidized thiosalts, producing sulfate. The Virtis Fermentor arrived, so that experiments with TQ1 have been scaled up to 1.5 liters with temperature, aeration, and pH control.

Microbial Stabilization of Sulfur-laden Sorbents. [Quarterly] Technical Report, March 1, 1993--May 31, 1993

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ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (727 download)

Book Synopsis Microbial Stabilization of Sulfur-laden Sorbents. [Quarterly] Technical Report, March 1, 1993--May 31, 1993 by :

Download or read book Microbial Stabilization of Sulfur-laden Sorbents. [Quarterly] Technical Report, March 1, 1993--May 31, 1993 written by and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean coal technologies that involve limestone for in situ sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spent sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species requires additional processing. Thermal oxidation of reduced sulfur frequently results in undesirable release of SO2. Microbial oxidation might provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide or sulfite can serve as growth substrates for sulfur-oxidizing bacteria, which convert all sulfur to sulfate. The goals of this project are the following: (1) to optimize conditions for sulfate generation from sulfide, thiosulfate, and sulfite; (2) to test and optimize the effectiveness of microbial processing on spent sorbents from flue gas desulfurization, coal gasification, and fluidized bed combustion; (3) to search for hyperalkalinophilic thiobacilli, which would be effective up to pH 11. This quarter, temperature, nitrogen, and phosphate requirements for sulfate generation on thiosulfate were optimized with respect to two named strains and two promising isolates. Spent sorbents from three different power plants were tested for sulfite and thiosulfate contents, in preparation for bioprocessing.

Energy Research Abstracts

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ISBN 13 :
Total Pages : 782 pages
Book Rating : 4.3/5 (129 download)

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Acid Precipitation

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ISBN 13 :
Total Pages : 1044 pages
Book Rating : 4.X/5 (2 download)

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Download or read book Acid Precipitation written by and published by . This book was released on 1994 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microbial Stabilization of Sulfur-laden Sorbents. Final Technical Report, September 1, 1992--August 31, 1993

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ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (685 download)

Book Synopsis Microbial Stabilization of Sulfur-laden Sorbents. Final Technical Report, September 1, 1992--August 31, 1993 by :

Download or read book Microbial Stabilization of Sulfur-laden Sorbents. Final Technical Report, September 1, 1992--August 31, 1993 written by and published by . This book was released on 1993 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean coal technologies that involve limestone for sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spent sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species requires additional processing. Thermal oxidation of reduced sulfur can result in undesirable release of SO2. Microbial oxidation might provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide or sulfite can serve as growth substrates for sulfur-oxidizing bacteria, which convert all sulfur to sulfate. The goals of this project are the following: (1) to optimize conditions for sulfate generation from sulfide, thiosulfate, and sulfite; (2) to test and optimize the effectiveness of microbial processing on spent sorbents from flue gas desulfurization, coal gasification, and fluidized bed combustion; (3) to search for hyperalkalinophilic thiobacilli, which would be effective up to pH 11.

Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, December 1, 1992--February 29, 1993

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ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (727 download)

Book Synopsis Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, December 1, 1992--February 29, 1993 by :

Download or read book Microbial Stabilization of Sulfur-laden Sorbents. Technical Report, December 1, 1992--February 29, 1993 written by and published by . This book was released on 1993 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean coal technologies that involve limestone for in situ sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spent sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species requires additional processing. Thermal oxidation of reduced sulfur frequently results in undesirable release of SO2. Microbial oxidation may provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide or sulfite can serve as growth substrates for sulfur-oxidizing bacteria, which convert all sulfur to sulfate. The goals of this project are to optimize conditions for sulfate generation from sulfide and sulfite on prepared lime/limestone mixtures; to test and optimize the effectiveness of microbial processing on spent sorbents from coal gasification, in-duct sorbent injection, and fluidized bed combustion; and to search for hyperalkalinophilic thiobacilli, which would be effective up to pH 11. We report here progress toward controlling the pH of culture media, and determining the highest pH at which several environmental isolates and named strains could initiate sulfur oxidation.

Microbial Stabilization of Sulfur-landen Sorbents ; Technical Report, September 1--November 30, 1993

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ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (683 download)

Book Synopsis Microbial Stabilization of Sulfur-landen Sorbents ; Technical Report, September 1--November 30, 1993 by :

Download or read book Microbial Stabilization of Sulfur-landen Sorbents ; Technical Report, September 1--November 30, 1993 written by and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean coal technologies that involve limestone for sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spent sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species requires additional processing. Thermal oxidation of reduced sulfur can result in undesirable release of SO2. Microbial oxidation might provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide, sulfite, or various polythionate species serve as growth substrates for sulfur-oxidizing bacteria, which have the potential to convert all sulfur to sulfate. This quarter, efforts focused on determining the combined effects of dibasic acids (DBA) and Ca{sup +2} concentration on several strains of neutrophilic thiobacilli, including Thiobacillus neapolitanus ATCC 23639 and ATCC 23641, and an isolate, TQ1, which was obtained from a commercial sulfur dioxide scrubber that utilizes DBA.

Microbial Stabilization of Sulfur-laden Sorbents

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (88 download)

Book Synopsis Microbial Stabilization of Sulfur-laden Sorbents by :

Download or read book Microbial Stabilization of Sulfur-laden Sorbents written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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ISBN 13 :
Total Pages : 1220 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Solidification/stabilization Resource Guide

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ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Solidification/stabilization Resource Guide written by and published by . This book was released on 1999 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Use of Dispersants in Marine Oil Spill Response

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Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
ISBN 13 : 0309478219
Total Pages : 341 pages
Book Rating : 4.3/5 (94 download)

Book Synopsis The Use of Dispersants in Marine Oil Spill Response by : National Academies of Sciences, Engineering, and Medicine

Download or read book The Use of Dispersants in Marine Oil Spill Response written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-04-24 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether the result of an oil well blowout, vessel collision or grounding, leaking pipeline, or other incident at sea, each marine oil spill will present unique circumstances and challenges. The oil type and properties, location, time of year, duration of spill, water depth, environmental conditions, affected biomes, potential human community impact, and available resources may vary significantly. Also, each spill may be governed by policy guidelines, such as those set forth in the National Response Plan, Regional Response Plans, or Area Contingency Plans. To respond effectively to the specific conditions presented during an oil spill, spill responders have used a variety of response optionsâ€"including mechanical recovery of oil using skimmers and booms, in situ burning of oil, monitored natural attenuation of oil, and dispersion of oil by chemical dispersants. Because each response method has advantages and disadvantages, it is important to understand specific scenarios where a net benefit may be achieved by using a particular tool or combination of tools. This report builds on two previous National Research Council reports on dispersant use to provide a current understanding of the state of science and to inform future marine oil spill response operations. The response to the 2010 Deepwater Horizon spill included an unprecedented use of dispersants via both surface application and subsea injection. The magnitude of the spill stimulated interest and funding for research on oil spill response, and dispersant use in particular. This study assesses the effects and efficacy of dispersants as an oil spill response tool and evaluates trade-offs associated with dispersant use.

Bioavailability of Contaminants in Soils and Sediments

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Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309086256
Total Pages : 433 pages
Book Rating : 4.3/5 (9 download)

Book Synopsis Bioavailability of Contaminants in Soils and Sediments by : National Research Council

Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.

Red Book Atlas of Pediatric Infectious Diseases

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Author : American Academy of Pediatrics
Publisher :
ISBN 13 : 9781581102475
Total Pages : 440 pages
Book Rating : 4.1/5 (24 download)

Book Synopsis Red Book Atlas of Pediatric Infectious Diseases by : American Academy of Pediatrics

Download or read book Red Book Atlas of Pediatric Infectious Diseases written by American Academy of Pediatrics and published by . This book was released on 2007 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on key content from Red Book: 2006 Report of the Committee on Infectious Diseases, 27th Edition, the new Red Bookr Atlas is a useful quick reference tool for the clinical diagnosis and treatment of more than 75 of the most commonly seen pediatric infectious diseases. Includes more than 500 full-color images adjacent to concise diagnostic and treatment guidelines. Essential information on each condition is presented in the precise sequence needed in the clinical setting: Clinical manifestations, Etiology, Epidemiology, Incubation period, Diagnostic tests, Treatment

Draft Toxicological Profile for Ethylbenzene

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ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (318 download)

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