Water Pollution Control Research Series 16080---10/69 PDF Download
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Author: United States. Federal Water Quality Administration
Publisher:
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Category :
Languages : en
Pages : 56
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Author: United States. Water Programs Office
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
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Author: United States. National Water Quality Control Research Program
Publisher:
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Category : Water
Languages : en
Pages : 48
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Author:
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Category : Aquaculture
Languages : en
Pages : 82
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Author:
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Category : Hydrology
Languages : en
Pages : 858
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Author: Heidelberg College. Biology Department
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Category : Sandusky River
Languages : en
Pages : 176
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Author: Ronald P. Murro
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Category : Biochemical oxygen demand
Languages : en
Pages : 140
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Results of recent activities in river and stream aeration by artificial techniques are reviewed, and a rational engineering methodology is developed for future river and stream aeration projects. The development of the methodology follows from a thorough review of the oxygen dynamics in rivers and streams and the capabilities of aeration systems within the present state of the art. The report shows how the theoretical work can be simplified considerably and applied to the solution of river and stream water quality problems. It is assumed that aeration would only be used as a polishing action. The results indicate that artificial aeration can be applied successfully to raise dissolved oxygen to 5 ppm, using mechanical surface aerators, diffusers, downflow contactors, and sidestream mixing.
Author: William R. Duffer
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Category : Feedlots
Languages : en
Pages : 80
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Effects of rainfall runoff from a beef cattle feedlot on the water quality of a small impoundment were determined. Changes in chemical concentration of impounded water and changes in the community structure of aquatic organisms were measured and related to the amount and composition of feedlot runoff received. Water quality changes were also monitored in a nearby reservoir which received no feedlot runoff to serve as a control. Changes in chemical concentration or population structure of organisms were not apparent for discharges of about one-part feedlot runoff to 40 parts receiving water. Runoff discharges for two pumping periods with each contributing one-fourth of the volume of the receiving water were shown to degrade water quality in the impoundment. Several significant chemical and biological changes occurred. The most dramatic reduction in the biological community was the suffocation of about 90% of the game fish in the impoundment.
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Category : Sewage
Languages : en
Pages : 284
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490 references and abstracts from Selected water resources abstracts through Feb. 15, 1973 (v. 6, no. 4). Each entry consists of title, author, source, descriptors, identifiers, abstract, and accession number. Keyword index.
Author: William Whipple
Publisher:
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Category : Water
Languages : en
Pages : 72
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Author: Technical Information Systems (U.S.)
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Category : Hydroponics
Languages : en
Pages : 42
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