surface water Articles

  • Transformational adaptation – when climate change means business as usual is no longer possible

    1. A lesson from the past Deep in the central Sahara, a crumbling mud-brick town sits at the edge of a dry lake bed. This is the medieval town of Germa, in southwestern Libya, one of a string of settlements along the Wadi al-Ajal, a valley defined by the towering dunes of the Ubari Sand Sea to the north, and the black cliffs of the Messak Settafet plateau to the south. Germa is romantic ...


    By Garama 3C Ltd

  • Waste water: Skimming the surface

    A walk on the wild side gave the founder of a Calgary service company a new appreciation for clean water, indirectly laying the foundation for his own future. Years ago, while on the island of Borneo, Jason Snydmiller learned the super-major he was under contract to would promptly fine any contractor that left oil in local waters. Although it seemed harsh then, the rule was necessary, since ...


  • Self-purification of marine environments for heavy metals: a study on removal of lead(II) and copper(II) by cuttlebone

    The aim of this study was to determine adsorption properties of cuttlebone, cuttlefish bone as dead biomass, for lead(II) and copper(II) from aqueous solutions. Adsorption kinetic, isotherm and effect of pH (in the range of 2.0–7.0) were investigated in a single component batch system at room temperature (25 ± 1 °C). The heavy metal adsorption by cuttlebone was relatively rapid ...


    By IWA Publishing

  • Designing With Geosynthetic Clay Liners

    In construction, preventing the penetration of liquids and gases is essential to maintaining the integrity of a structure. Often, containment is just as important, especially when dealing with chemical contaminants or other waste. When looking to stop the spread of contaminated liquids and gases, there are few tools as effective as geosynthetic clay liners (GCL). Read on to learn how to design ...


    By Agru America, Inc.

  • Secondary Oil Containment at US Army Corps of Engineers - Big Bend Dam - Case Study

    Big Bend Dam takes its name from the unique bend in the Missouri River seven miles upstream from the dam. Construction of the dam began in 1959 and the embankment was completed in July 1963. Big Bend dam is 95 feet (29 m) high and 10,570 feet (3,220 m) in length. Power generation began at the facility in 1964 and the entire complex was completed by 1966. The hydroelectric plant generates ...


    By Albarrie Canada Limited

  • Using Electromagnetic induction to characterize soils - Case Study

    Electrical conductivity measurements have been used for years to determine salinity and moisture in soils. Probes were inserted directly into the soil to determine how well the soil conducted an applied current. This process was slow and labor-intensive and was usually reserved for scientific studies. A more recent technique for measuring conductivity is electromagnetic induction (EM), a ...


    By Geonics Limited

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Instruments Ltd

  • Tire Shredding: The Best Alternative

    From cars and trucks to planes, tractors, and forklifts, tires are used for a wide variety of vehicles. And those tires don’t last forever. Regardless of how many miles a tire travels, it should not be used longer than ten years past its manufacture date, as the rubber will grow brittle and can crack. This isn’t usually a problem, though, since most tires are replaced within three or ...


    By ECO Green Equipment

  • How to choose open cell or closed cell articulated concrete blocks

    Are you wondering what the best, most cost-effective solution is for erosion control at your construction site? There are a variety of solutions available, but we always highly recommend the use of articulated concrete blocks. These systems are a great alternative to what can otherwise be a costly, time-consuming task in erosion control. Articulated concrete block systems can be used in a wide ...

  • Surface Runoff

    Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, snowmelt, or other sources flows over the land. This is a major component of the hydrologic ...


    By IWA Publishing

  • A review on interaction of groundwater and surface water

    Interactions between groundwater and surface water play a fundamental role in water resources management. The movement of water between groundwater and surface water should be investigated in view of both quantity and quality aspects of water resources. In this paper, an attempt is made to define the primary concepts of this interaction and to illustrate a case study undertaken in ...


    By Inderscience Publishers

  • Phosphorus control protects surface waters

    Phosphorus is the decisive factor for excessive algae and plant growth in water bodies, that’s why quality standards require reductions in the amount of phosphorus released from wastewater treatment plants into rivers and lakes. In recent years, the outlet limit values have not only been reduced on national levels. Depending on the vulnerability of ecosystems, especially low target values ...


    By Endress Hauser

  • Lake Taneycomo surface water intake

    Client: City of Branson, Mo. Completion Date: 1997  Services Provided Microtunneling Public information program Permitting agency reviews Air backwash system Potassium permanganate feed system Inverted bulk drum storage Architectural features Architectural ...


    By Burns & McDonnell

  • Data Requirements for Ground Water, Surface Water, and Leachate

    It is common for ground water to be contaminated with the water soluble substances found in overlying soils. Many of the required data elements are similar, e.g., pH, TOC, BOD, COD, oil and grease, contaminant identification and quantification, and soil and aquifer characterization. Additional water quality monitoring data elements include hardness, ammonia, total dissolved solids, and metals ...

  • Containment for Ground Water, Surface Water, And Leachate

    Containment measures are often performed to prevent, or significantly reduce, the migration of contaminants in soils or ground water. Containment is necessary whenever contaminated materials are to be buried or left in place at a site. In general, containment is performed when extensive subsurface contamination at a site precludes excavation and removal of wastes because of potential hazards ...

  • Surface Water Treatment Plant, City of Clovis, CA

    Located in the northeast quadrant of the Fresno- Clovis Metropolitan Area, Clovis is situated in the midst of the agriculturally rich San Joaquin Valley. Dedicated to promoting planned growth while retaining its unique western atmosphere, the City's population has more than doubled since 1975, reaching the current level of approximately 90,000, and encompassing over 19.9 square miles in area. The ...

  • Surface Water Treatment Industry - Case Study

    “The surface treatment industry itself exists to produce durable products and to spare the environment.“ K. Hartwall Ltd. is an enterprise in the metal industry with net sales of approximately 20 million euro. The company is well known for its innovative carriage products used in the transport and storage of goods, especially foodstuffs. The primary material in carriages is steel, ...


    By Watman Ltd.

  • A New Way to Locate Seeps Into Surface Waters

    How can we determine where groundwater is seeping into rivers and bays?  Knowing seep locations can help with selecting sampling locations, identifying contaminant sources, determining whether contamination is historic or on-going, and designing remediation.  Historically, methods for locating seeps have been limited.  Due to cost, sampling can only be done at a few ...


    By SelkerMetrics

  • Cleaning mold containing surfaces

    Once a determination is made that a moldy surface can be cleaned instead of removed or demolished, what cleaning agents are effective in removing or killing the mold? Many factors influence the selection of a cleaning agent. 1). The type of surface to be cleaned: Is it porous? Hard such as cement or sheetrock? Soft, such as cloth, fabric or wallpaper? Absorbent and thick such as rugs, ...

  • Wastewater skimming the surface

    A walk on the wild side gave the founder of a Calgary service company a new appreciation for clean water, indirectly laying the foundation for his own future. Years ago, while on the island of Borneo, Jason Snydmiller learned the super-major he was under contract to would promptly fine any contractor that left oil in local waters. Although it seemed harsh then, the rule was necessary, since ...


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