sediment control Articles

  • Sedimentation structures

    Sedimentation structures are measures, which purify the surface runoff with the principle of sedimentation. The separation of solid from rainwater discharge (divided sewer system) can be carried out through: grit chamber rainwater sedimentation tank vortex separator system The dimensioning of plants, that work with sedimentation is done according to the allowed ...


    By IWA Publishing

  • Geochemical control processes and potential sediment toxicity in a mine‐impacted lake

    Geochemical parameters and major ion concentrations from sediments of a freshwater lake in the town of Åtvidaberg, south‐eastern, Sweden, were used to identify the geochemical processes that control the water chemistry. The lake sediments are anoxic, characterized by reduced sulphur and sulphidic minerals. The hypothesis tested is that in sulphidic‐anaerobic contaminated sediments, the ...


    By John Wiley & Sons, Ltd.

  • Erosion and Sediment Control: Navigating NPDES Regulations, the SWPPP, and Techniques for Compliance

    Erosion and Sedimentation: Why Are They a Problem? The US Environmental Protection Agency lists sediment as the single most common pollutant in rivers, streams, lakes, and reservoirs. With all the potentially harmful chemicals and substances in the world, it seems odd to many people that sediment—dirt, essentially—is singled out as the major culprit. Yet these particles of ...


    By FINN Corporation

  • Investigating the effect of a skimming wall on controlling the sediment entrance at lateral intakes

    Sediment entering lateral intakes depends on the flow pattern at the intake entrance. Using a structure in front of the intake entrance can change this pattern and as a result the entering sediment. One of the effective method to change the pattern and manage sediment entering a lateral intake is to use a skimming wall. The removal of sediments from the intake entrance using a skimming wall ...


    By IWA Publishing

  • Evaluating alkaline microcapsules for pH control and reductive dechlorination of trichloroethylene in sediment

    Near neutral pH has been reported in the literature to optimise trichloroethylene (TCE) reductive dehalogenase activity in purified enzyme solutions, cell extracts and cell suspensions. In this study, microencapsulated alkaline buffers were used to evaluate potential use in controlling pH in soil microcosms and columns containing sediment obtained from a TCE-contaminated acidic aquifer at the ...


    By Inderscience Publishers

  • Sedimentation: An operational problem of Mithrao Canal

    Mithrao Canal off-takes from Nara Canal, which off-takes from the left bank of Sukkur Barrage. The participation irrigation management was introduced in Sindh Province with the establishment of Nara Canal Area Water Board in 1999. Mithrao Canal Division is divided into four administrative sub-divisions (please refer Annexures – II & III). They are as following;a. Sangahr Sub-Division.b. Samaro ...


  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • Modeling of Sedimentation in Stormwater Detention Basins

    ABSTRACTTo minimize the non-point source pollution from roadway surface, the Texas Department of Transportation (TxDOT) initiated a research project for design of a small footprint non-proprietary detention basin, which consists of pipes and box culvert sections with specialized inlet and outlet system. A conceptual model was developed to estimate particle removal efficiency of the rectangular ...

  • Bioavailability and bioaccumulation of sediment‐bound PCBs to carp

    The relative bioavailability of sediment‐bound polychlorinated biphenyls (PCB 138, 153 and 180) from a local contaminated site was examined using an in vivo carp model. Surface sediment from the PCB contaminated site and spiked canola oil containing equivalent masses of PCBs were respectively incorporated in the “sediment‐dosed diets” and “oil‐dosed diets” at 3 dose levels resulting in 6 ...


    By John Wiley & Sons, Ltd.

  • Tracing fine sediment sources in small mountain catchment

    Fine sediment represents an important diffuse source pollutant in surface waters, due to its role in governing the transfer and fate of many substances, including nutrients, heavy metals, pesticides and other organic contaminants, and its influence on aquatic ecology. Therefore, catchment management strategies frequently need to include provision for the control of sediment mobilization and ...


    By IWA Publishing

  • Ex Situ Thermal Treatment for Soil, Sediment, and Sludge

    The main advantage of ex situ treatments is that they generally require shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to screen, homogenize, and continuously mix the soils. Ex situ processes, however, require excavation of soils leading to increased costs and engineering for equipment, possible permitting, and materials handling worker ...

  • Experimental study of hydraulics and sediment capture efficiency in catchbasins

    Catchbasins (also known as gully pot in the UK and Australia) are used to receive surface runoff and drain the stormwater into storm sewers. The recent interest in catchbasins is to improve their effectiveness in removing sediments in stormwater. An experimental study was conducted to examine the hydraulic features and sediment capture efficiency in catchbasins, with and without a bottom sump. ...


    By IWA Publishing

  • Common Treatment Technologies for Radionuclides in Soil, Sediment, and Sludge

    Unlike organic contaminants (and similar to metals), radionuclides cannot be destroyed or degraded; therefore, remediation technologies applicable to radionuclides involve separation, concentration/volume reduction, and/or immobilization. The most commonly used treatment technology for radionuclides in soil, sediment, and sludge is solidification/stabilization (S/S). This treatment technology is ...

  • In Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of in situ treatment is that it allows soil to be treated without being excavated and transported, resulting in potentially significant cost savings. However, in situ treatment generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in soil and aquifer characteristics and because the efficacy of the ...

  • Fountain creek sediment collector - case study

    An innovative sediment management method, a 30-ft wide, high capacity, Sediment Collector, is currently installed in Fountain Creek, Pueblo, Colorado upstream of the confluence with the Arkansas River.  This installation is intended to demonstrate a new technology available to reduce the need for dredging.  The purpose of the Sediment Collector is to demonstrate the capability to lower ...


    By Streamside, LLC.

  • Mining Related Sediment Impacts: Causes, Significance and Solutions1

    The ProblemAs with many production activities related to the use of natural resources, initial legacies in the form of negative impactsare often characterized by acute pollution of surface waters. In the case of the mining industry, long after the originalmining-related activity ceases, residues such as tailings, spoil piles, sediments in settling ponds or sediments reaching natural ...


  • Peroxy-acid treatment of selected PAHs in sediments

    In an attempt to address some of the disadvantages of the common biotic and abiotic processes used for the degradation of Polycyclic Aromatic Hydrocarbons (PAHs), an alternative strategy utilising a primary chemical oxidative step to be combined with a biological post-treatment step was created. The degradation of α-methylnaphthalene, fluorene, phenanthrene, anthracene, pyrene and ...


    By Inderscience Publishers

  • Origin and chemical partitioning of heavy metals in riverbed sediments

    Abstract: In the present investigation, bulk and chemical partitioning of elements in the Shefa-Rud riverbed sediments are studies. Higher concentrations of elemental concentrations have been observed in estuarine zone when compared with riverine sediments (except for Al, Fe, Pb and Mn). Manganese is mobilized under anoxic conditions prevailing in the Caspian Sea. Lithogenous materials are ...

  • Common Treatment Technologies for Inorganics in Soil, Sediment, and Sludge

    The most commonly used treatment technologies for inorganics in soil, sediment, and sludge include solidification/stabilization (S/S), excavation and off-site disposal, and acid extraction. These treatment technologies are described briefly below. Solidification processes produce monolithic blocks of waste with high structural integrity. The contaminants do not necessarily interact chemically ...

  • Ex Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...

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