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Book In Situ Microbial Volatilization of Selenium in Soils

Download or read book In Situ Microbial Volatilization of Selenium in Soils written by and published by . This book was released on 1999 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pilot-scale field experiment has been conducted since 1990 to test the effectiveness of microbial volatilization in removing selenium (Se) from soils contaminated with agricultural drainage water. The experiment, in which only irrigation and aeration were employed to enhance microbial processes, was designed to measure all major Se fluxes, including not only selenium loss via volatilization, but also advection with infiltrating rainwater, evapotranspirative transport, and plant uptake. The goal was to account for the total Se mass balance and address questions as to the significance of microbial volatilization relative to other fluxes. Although data collected from 1990 to 1994 showed decreases of Se concentrations in the top soil, subsequent data demonstrated that advective Se fluxes due to rainwater infiltration and evapotranspiration are largely responsible for the observed changes. Se volatilization was measured to account for an annual loss of only about 1%, with volatilization rates decreasing significantly with time, presumably due to the depletion of soil organic carbon. The integrated results of this project demonstrate the advantages and even necessity of an inter-disciplinary and multi-phase approach to evaluating the effectiveness of bioremediation strategies. Extreme caution needs to be taken in interpreting early results; long-term data collection and follow-up are indispensable.

Book Microbial Volatilization of Selenium in a Soil Plant System

Download or read book Microbial Volatilization of Selenium in a Soil Plant System written by Ranju Rani Karna and published by . This book was released on 2009 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book In Situ Volatilization of Selenium

Download or read book In Situ Volatilization of Selenium written by William T. Frankenberger and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dissipation of Soil Selenium by Microbial Volatilization at Kesterson Reservoir Final Report December Prepared for the U S Department of the Interior Bureau of Reclamation Cottage Way Sacramento Ca Under U S Bureau of Reclamation Contract

Download or read book Dissipation of Soil Selenium by Microbial Volatilization at Kesterson Reservoir Final Report December Prepared for the U S Department of the Interior Bureau of Reclamation Cottage Way Sacramento Ca Under U S Bureau of Reclamation Contract written by Department of Soil and published by Forgotten Books. This book was released on 2018-02-25 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dissipation of Soil Selenium by Microbial, Volatilization at Kesterson Reservoir Final Report December, Prepared for the U. S. Department of the Interior, Bureau of Reclamation, Cottage Way, Sacramento, Ca Under U. S. Bureau of Reclamation, Contract Analysis of variance of cumulative selenium volatilization from Kesterson soil as affected by different amendments. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Book Dissipation of Soil Selenium by Microbial Volatilization at Kesterson Reservoir

Download or read book Dissipation of Soil Selenium by Microbial Volatilization at Kesterson Reservoir written by Anonymous and published by Palala Press. This book was released on 2015-09-05 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Book Microbial Volatilization of Selenium

Download or read book Microbial Volatilization of Selenium written by W. T. Frankenberger and published by . This book was released on 1988 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Microbial Transformations of Selenium by Enterobacter Cloacae SLD1a 1 and Measurement of Selenium Volatilization Under Field like Conditions

Download or read book Microbial Transformations of Selenium by Enterobacter Cloacae SLD1a 1 and Measurement of Selenium Volatilization Under Field like Conditions written by Robert Stephen Dungan and published by . This book was released on 1999 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Microbial Volatilization of Selenium at Kesterson Reservoir

Download or read book Microbial Volatilization of Selenium at Kesterson Reservoir written by W. T. Frankenberger Jr. and published by Forgotten Books. This book was released on 2018-03-30 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Microbial Volatilization of Selenium at Kesterson Reservoir: Interim Report, March 1988 Selenium volatilization was monitored in the field with an inverted box system. A vacuum connected to a manifold pulled the air above the soil into a scrubbing solution of alkaline peroxide at 2 L min'l. The trapped volatile Se was oxidized to selenate and analyzed by aas/hydride generation. Recovery of the described system was determined to be This system was compared to a vented system with an inlet port. The closed box recovered 14% more volatile Se than the vented system. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Book Western San Joaquin Valley a Reconnaissance Study Geologic Sources Mobilization and Transport of Selenium from the California Coast Ranges B1 Agricultural Subsurface Drainage and Related Problems Management Plan B2 Fish and Wildlife Resources and Agricultural Drainage

Download or read book Western San Joaquin Valley a Reconnaissance Study Geologic Sources Mobilization and Transport of Selenium from the California Coast Ranges B1 Agricultural Subsurface Drainage and Related Problems Management Plan B2 Fish and Wildlife Resources and Agricultural Drainage written by and published by . This book was released on 1990 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Novel Bioremediation Processes for Treatment of Seleniferous Soils and Sediment

Download or read book Novel Bioremediation Processes for Treatment of Seleniferous Soils and Sediment written by Shrutika Laxmikant Wadgaonkar and published by CRC Press. This book was released on 2018-10-26 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this Ph.D. was to develop a technology for the remediation of seleniferous soils/sediments and to explore microbial reduction of selenium oxyanions under different respiration conditions and bioreactor configurations. Seleniferous soil collected from the wheat-grown agricultural land in Punjab (India) was characterized and its soil washing was optimized by varying parameters, where addition of oxidizing agents showed a maximum selenium removal efficiency. Aquatic plants, Lemna minor and Egeria densa were used to study phytoremediation of the selenium-rich soil leachate containing oxidizing agents. Additionally, migration of the soluble selenium fraction from the upper to the lower layers and its subsequent reduction and accumulation in the lower layers of the soil column was observed during soil flushing. Furthermore, the soil leachate containing selenium oxyanions obtained from soil washing was treated in a UASB reactor by varying the organic feed. Ex situ bioremediation of selenium oxyanions was studied under variable conditions. An aerobic bacterium (Delftia lacustris) capable of transforming selenate and selenite to elemental selenium was isolated and characterized. Anaerobic bioreduction of selenate coupled to methane oxidation was investigated in serum bottles and a biotrickling filter using marine sediment as inoculum. Finally, the effect of contamination of other chalcogen oxyanions (tellurium) on selenium bioreduction was studied in a continuous system (UASB reactor).

Book Environmental Chemistry of Selenium

Download or read book Environmental Chemistry of Selenium written by William T. Frankenberger and published by CRC Press. This book was released on 1998-02-03 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Written as a complement to the definitive work selenium in the Environment (Marcel Dekker, Inc.). Presents basic and the most recent applied research developments in selenium remediation-emphasizing field investigations as well as covering topics from analytical methods and modeling to regulatory aspects from federal and state perspectives. "

Book Microbial Transformations of Selenium in Soil and Culture

Download or read book Microbial Transformations of Selenium in Soil and Culture written by John Walsh Doran and published by . This book was released on 1976 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: