Last edited by Gardajas
Wednesday, July 29, 2020 | History

2 edition of Development of methods to improve performance of surface mine sediment basins found in the catalog.

Development of methods to improve performance of surface mine sediment basins

Charles E Ettinger

Development of methods to improve performance of surface mine sediment basins

phase 1

by Charles E Ettinger

  • 86 Want to read
  • 11 Currently reading

Published by Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available to the public through the National Technical Information Service in Cincinnati, Springfield, Va .
Written in English

    Subjects:
  • Strip mine ponds -- Kentucky,
  • Strip mine ponds -- Pennsylvania,
  • Strip mine ponds -- West Virginia

  • Edition Notes

    Statementby Charles E. Ettinger
    SeriesInteragency energy/environment R&D program report -- EPA-600/7-80-072, Research reporting series -- EPA-600/7-80-072
    ContributionsIndustrial Environmental Research Laboratory (Cincinnati, Ohio), Industrial Environmental Research Laboratory (Cincinnati, Ohio). Resource Extraction and Handling Division, Skelly and Loy
    The Physical Object
    Paginationx, 174 p. :
    Number of Pages174
    ID Numbers
    Open LibraryOL13603679M

    EPA and Hardrock Mining: A Source Book for Industry in the Northwest and Alaska Appendix H: Erosion and Sedimentation H-2 January January Interrill and Rill Erosion Erosion occurs on disturbed or exposed areas by either interill or rill erosion. Interill erosion is sometimes referred to as sheet erosion. Sediment increases the cost of treating drinking water and can result in odor and taste problems. Sediment can clog fish gills, reducing resistence to disease, lowering growth rates, and affecting fish egg and larvae development. Nutrients transported by sediment can activate blue-green algae that release toxins and can make swimmers Size: KB.

    Sediment Basins (§) 5 § Sediment Basins. (a) Sediment basins are excavated or depressed areas that are used to collect and detain runoff to allow suspended solids to settle out of storm water before storm water is Discharged to off-site areas. (b) The use of sediment basins shall be mandatory for. The environmental impact of the coal industry includes issues such as land use, waste management, water and air pollution, caused by the coal mining, processing and the use of its products. In addition to atmospheric pollution, coal burning produces hundreds of millions of .

    To assist State, Federal, and local agencies in their efforts to remediate and improve utilization of affected waters, the USGS has documented the extent and severity of surface-water and ground-water contamination associated with bituminous coal mining in western Pennsylvania and anthracite coal mining in eastern Pennsylvania and has evaluated. Water-quality trends in the nation’s rivers and streams, –—Data preparation, statistical methods, and trend results Since passage of the Clean Water Act in , Federal, State, and local governments have invested billions of dollars to reduce pollution entering rivers and streams.


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Development of methods to improve performance of surface mine sediment basins by Charles E Ettinger Download PDF EPUB FB2

This study outlines methods to improve the performance of surface mine sedimentation basins in order to meet the current effluent limita- tions for suspended solids. This subject has been under study by the Re- source Extraction and Handling Division of the Industrial Environmental Research Laboratory which may be contacted for further information.

Development of methods to improve performance of surface mine sediment basins: phase 1 Author: Charles E Ettinger ; Industrial Environmental Research Laboratory (Cincinnati, Ohio) ; Industrial Environmental Research Laboratory (Cincinnati, Ohio).

Development of methods to improve performance of surface mine sediment basins: phase 1 / by Charles E. : Charles E. Ettinger. The study involves the development of abatement criteria for all mined mineral commodities except oil and gas production, well sites and off-shore mining.

Development of methods to improve performance of surface mine sediment basins: Environmental assessment of surface mining methods.

Abstract. Sediment basins are temporary practices commonly used to detain stormwater runoff and capture suspended sediment on construction sites. A m 3 ( ft 3) sediment basin testing apparatus at the Auburn University—Erosion and Sediment Control Testing Facility was used to provide a series of controlled and repeatable, Cited by: 1.

Erosion from the slopes of the hollow fills was heavy and was the main source of sediment to the pond. Conventionally, in the design of the riser type of outflow from sediment control structures, the size of the riser pipe is larger than the spillway pipe.

The approved design drawings reflected this relationship. The construction phase is often overlooked when considering the impacts of land development on water quality. This aspect of water sensitive urban design (WSUD) is known as “erosion and sediment control” (ESC) and its name reflects the key processes that need to be : Leon Rowlands.

Generally these basins are designed based on ″rules-of-thumb″ and empirical curves with little attention given to the physical factors that affect the performance of the basins.

Surface mining; Classification of surface mining methods together with the desired parameters/ conditions suitable for their applications; Open pit mining; Classification of quarrying methods/techniques: Mechanical excavation methods {such as: Open-pit (or Open-cut or Open-cast); Terrace; and Strip mining}.

ii) Aqueous methods {such as: Placer and. surface area is critical for sediment basins that operate as continuous flow systems. Both pond volume and surface area are critical for Type A basins.

It should be noted that even if a basin is full of water, it can still be effective in removing coarse sediments from inflows. Therefore, unlike permanent stormwater treatment ponds. Determine by appropriate hydrologic methods the total volume of runoff from a one-year frequency, hour storm occurring on the development area before and after development.

From the volumes determined in (a), determine the percentage increase in volume of runoff due to development, and using this percentage, select the hour critical storm. As a general guideline, sediment basins are suitable for drainage areas of 5 acres or more, but not appropriate for drainage areas greater than 75 acres.

However, the tributary area should be evaluated on a site by site basis. Sediment basins may become an “attractive nuisance” and care must be taken to adhere to all safety practices. 20 Sediment Basins with porous baffles Flocculant is added up stream of basin or forebay.

Purpose of the baffles is to disperse the energy of flowing water and allow to settle. When combined with flocculant enhancement can improve % performance. To evaluate the sediment removal capacity of the SBs, four SBs, namely SB11, SB14, SB and SB were chosen for monitoring.

The test basins are in section C11 of the construction site, located west of State College near Port Matilda. However, a large number of sedimentation basins were installed along the entire by: When a sediment basin has reached 50% of its sediment storage capacity or six months after the mining operation was started.

21) Small quantities of sediment from a sediment basin may be disposed of by: Answer: Burial in the active pit or disposal by dewatering and covering with soil and vegetation. Poorly controlled groundwater can impact the safety and efficiency of mine operations Mine dewatering is the process of controlling and managing surface water and groundwater to allow mining in relatively dry conditions, to improve geotechnical stability and to improve the efficiency of mining methods 5.

A large (to 1/10 acre) rainfall simulator was used to generate runoff and sediment yield data from surface mine road sections in southeastern Idaho and Eastern Montana during the summer of The data includes plot geometry, soil density, soil gradation, antecedent and post treatment soil water content, loose surface soil, hydrographs, sediment yield, and rainfall duration.

The Stratigraphy and Sedimentology of Sedimentary Basins: Introduction to Part 1. Front Matter. Pages PDF. Introduction. Global Controls of Sedimentary Basin Development. Front Matter.

Pages PDF. Tectonism and Sedimentation: Principles and Models Chronostratigraphy Sediment Sedimentation Stratigraphy geophysics plate. Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an gs are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.

The extraction of minerals from ore can be done two ways: placer mining, which. Guidelines for mine water management Mining influences the quality and quantity of water in the mine area R and in its surroundings and changes hydrological conditions.

H Although mining companies have long been conscious of the I importance of water management, they still face environmental problems. ATTACHMENT D: Sediment Basin Sizing Sediment basins shall, at a minimum, be designed for a 80% reduction of suspended soil particles having a diameter of mm or larger.

The following equations are used to determine the appropriate surface area and le ngth to width ratio to achieve the target 80% reduction. Sediment collection showed that the improved system allowed for an additional % of sediment deposition by mass.

This research effort and future testing results will allow practitioners to better understand the performance of current sediment basin designs and for providing operational improvements.Deep sea mining is a mineral retrieval process that takes place on the ocean mining sites are usually around large areas of polymetallic nodules or active and extinct hydrothermal vents at 1, to 3, metres (4, to 12, ft) below the ocean’s surface.

The vents create globular or massive sulfide deposits, which contain valuable metals such as silver, gold.