EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Evaluation of In Reservoir Cofferdam on Richard B  Russell Reservoir and Hydropower Releases  Hybrid Model Investigation

Download or read book Evaluation of In Reservoir Cofferdam on Richard B Russell Reservoir and Hydropower Releases Hybrid Model Investigation written by and published by . This book was released on 1981 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers, Savannah District, will install an innovative oxygen injection system in the proposed Richard B. Russell Reservoir to enhance the dissolved oxygen distribution in the reservoir and in the release. To complement this effort, a hybrid modeling study was conducted to evaluate the compatibility of various in-reservoir geometries with the injection scheme. The relative impact of four in-reservoir geometries upon the in situ and release water quality was investigated. Additionally, idealized calculations were made to determine the respective injection rates required to maintain a release dissolved oxygen concentration of 6 mg/l (or more). (Author).

Book Richard B  Russell Dam and Reservoir

Download or read book Richard B Russell Dam and Reservoir written by and published by . This book was released on 1984 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Findings of a study to quantify and then evaluate the contribution of initial soil flooding and decomposition of vegetation to the water quality of the newly filled Richard B. Russell Lake are reported herein. Samples of soils and vegetation were taken from three areas representing the most predominant types of soil vegetation within the boundaries of the lake. Using controlled conditions in the laboratory, it was found that both soils and vegetation can release significant quantities of oxygen-consuming materials and plant nutrients. Soil samples had an oxygen demand large enough to cause strong depletion of dissolved oxygen fro mthe overlying water at 5 and 12.5 C, while samples held at 20 C removed all dissolved oxygen within 30 to 40 days. Developmentof anoxic conditions resulted in the release of large quantities of dissolved organic matter, plant nutrients, iron, manganese, and hydrogen sulfide. Upon comparison of these observations with other preimpoundment and postimpoundment investigations, several measures of potenial use were found to reduce the impact of initial soil flooding and decomposition of vegetation on the initial water quality of Richard B. Russell Lake. These included: burning of herbaceous vegetation in the hypolimnion and removal of tops trimmed from trees from areas to be flooded by rpoject waters; application of the data in this report to reservoir operation through use of a mathematical water quality model; reduction of residence time for hypolimnetic waters in the reservoir through operation in the sluice gates; and use of the planned dissolved oxygen injection system during initial reservoir filling.

Book List of Publications of the U S  Army Engineer Waterways Experiment Station

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1993 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Alternatives in Regulated River Management

Download or read book Alternatives in Regulated River Management written by James A. Gore and published by CRC Press. This book was released on 2018-01-18 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers and managers of regulated river systems will find this volume useful in acquiring information for deciding an integrated management plan for regulated river operations. Rather than the ecological theory of impacts of flow regulation, emphasis has been placed on methods to predict water quality and habitat alterations, as well as techniques to mitigate impacts from various operational scenarios. Although most chapters refer to impacts of riverine impoundments, these alternatives apply to any regulated situation in which changes in water quality or flow pattern occur. The predictive modeling techniques are explained primarily from a theoretical background. However, extensive bibliographies can guide the uninitiated to specific texts and software. Where controversial techniques have been presented, alternate methods are also described. Major topic areas include water quality problems, channel modification and management, ecological modeling and management, as well as a section on perspectives for ecological management and special problems in developing nations.

Book Monthly Catalogue  United States Public Documents

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1983 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Investigation and Discussion of Techniques for Hypolimnion Aeration oxygenation

Download or read book Investigation and Discussion of Techniques for Hypolimnion Aeration oxygenation written by Jeffery P. Holland and published by . This book was released on 1984 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines elements of the design and operation of hypolimnetic aeration systems. Three basic types of hypolimnetic aerators are identified, and pertinent literature for each is reviewed. Hypolimnetic aeration with pure oxygen (i.e. hypolimnetic oxygenation) at Clarks Hill Reservoir, Georgia-South Carolina, is overviewed. Included are results of hypolimnetic aeration field test conducted by contractors and the US Army Corps of Engineers at Clarks Hill. Results from these test showed that, for hypolimnetic oxygenation to most effectively enhance downstream release, most of the input oxygen should be placed (1) within the hypolimnetic withdrawal zone and (2) by a linear diffuser. A number of hypolimnetic aerator designs are considered. The use of numerical simulation techniques to predict idealized values for aerator design is also discussed. A combination of such results from the Clarks Hill field tests and numerical simulation efforts has produced the initial design for a hypolimnetic oxygenation system at Richard B. Russell Reservoir, South Carolina-Georgia, which is presented herein.

Book Journal

    Book Details:
  • Author :
  • Publisher :
  • Release : 1982
  • ISBN :
  • Pages : 1642 pages

Download or read book Journal written by and published by . This book was released on 1982 with total page 1642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Civil Works Annual Research   Development Summary

Download or read book Civil Works Annual Research Development Summary written by and published by . This book was released on 1981 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: