retention wall Articles

  • Retrofitting a stormwater retention pond using a deflector island

    Stormwater retention ponds are one of the principal methods to treat stormwater runoff. Analysis of residence time distribution (RTD) curves can be used to evaluate the capability of these ponds for sediment removal. Deflector islands have been suggested as a means of improving the performance of retention ponds, due to their diffusing the inlet jet. In this study, the effect of an island on ...


    By IWA Publishing

  • Soil Retention at Village of Moreland Hills, Ohio - Case Study

    PROJECT SCOPE: The village of Moreland Hills, Ohio faced a challenge to re-tain soils in a problematic soft soil area. But, piling systems were expensive and a concrete solution in the natural environment was undesirable. Presto GEOWEB® earth retention system’s inherent qualities include its flexibility, ability to withstand reasonable differential settlement in soft soil environ-ments, ...


    By Presto Geosystems

  • Legacy village shopping center embankment, Lyndhurst, Ohio

    PROJECT LOCATION: Lyndhurst, Ohio PROJECT SCOPE The Presto Geoweb® vegetated earth retention system, constructed on the back side of an upscale shopping center parking lot, provided a stable retaining wall that blends naturally with the wooded environment. The 400-ft. long x 25 ft. high (max. height) retention structure was required to accommodate the change-in-grade, ...


    By Presto Geosystems

  • Phoenix park, Kangwan-do, Korea

    Perched on top of a mountainous area in Kangwon-do, Korea, the Phoenix Park Resort is protected from the effects of erosion by a system of walls including the largest retaining wall in Korea. The mountainous location of the resort makes it a favorite destination of tourists and vacationers, but the rugged terrain demanded the wall have several key characteristics: First, it had to be durable. ...


    By Presto Geosystems

  • Schlitt services seawall, Vero Beach, Florida

    One example is when prime real estate, which is scarce in south Florida, forces developers to reclaim low-lying land for commercial use. Louis Schlitt, a Vero Beach area real estate developer, approached us with such a land reclamation problem. The property slated for commercial development butted up against a saltwater estuary. In addition to the existence of agency-protected species of ...


    By Presto Geosystems

  • Raising awareness on materials recycling using undergraduate engineering research

    Undergraduate research in engineering was used as a means of raising awareness on materials recycling and alternative recycled material products and processes. Over a three-year period, the authors hosted undergraduate researchers to work on rubber and polymer concrete, rubber-sandwich structures and recycled rubber materials for road embankments and retaining wall backfills. This paper discusses ...


    By Inderscience Publishers

  • Removal of micropollutants and NOM in carbon nanotube-UF membrane system from seawater

    One of the main problems for seawater reverse osmosis desalination is membrane fouling associated with natural organic matter. Bisphenol-A (BPA) and 17α-ethinylestradiol (EE2) are well-known endocrine-disrupting compounds that have been detected in wastewater and seawater. In this study, the contribution of carbon nanotubes (CNTs, single-walled carbon nanotubes) to membrane fouling control and ...


    By IWA Publishing

  • BLOBEL Flood Barrier Systems – Protection from Floodwaters and Mud!

    In recent years we have experienced more and more extreme weather conditions which have caused damage and devastation to the environment and local infrastructure.BL/HSW-SB at work, designed to protect private and commercial assets from rising floodwaters and mud.The BL/HSW-SB, a fully demountable Flood Protection System responds to this need, according to Blobel. It is designed to protect private ...


    By Blobel Umwelttechnik GmbH

  • Haloacetic acid degradation by a biofilm in a simulated drinking water distribution system

    Haloacetic acids (HAAs) are disinfection by-products formed as a result of the reaction between chlorine and natural organic matter found in water. HAA concentrations have been observed to decrease at distribution system extremities. This decrease is associated with microbiological degradation by pipe wall biofilm. The objective of this study was to evaluate HAA degradation in a drinking water ...


    By IWA Publishing

  • Confined disposal facilities: History and trends

    ABSTRACT Confined disposal facilities with filter layers have been used for disposal of dredged sediments for decades. Recent assessment of the environmental risk of contaminants in sediments has resulted in the use of lined confined disposal facilities. A case history outlines a contaminated sediment disposal facility designed with geosynthetics. Trends indicate more stringent requirements for ...


    By CETCO

  • Treatment of wastewater and restoration of aquatic systems through an eco-technology based constructed treatment wetlands – a successful experience in Central India

    In the last couple of decades constructed wetlands (CWs) have drawn considerable interest in Central India. CWs offer an effective means of integrating wastewater treatment and resource enhancement, often at competitive cost in comparison to conventional wastewater treatments, with additional benefits of Green Urban Landscaping and wildlife habitat. This paper describes treatment performances ...


    By IWA Publishing

  • Shoreline property upgrade saved by Lightweight stormwater solution case study

    Renovating a residential property may be commonplace, however upgrades adjacent to the sensitive Bayou Texar estuary in Pensacola, FL, is a bit more difficult. The estuary is an ecologically sensitive area protected by the Florida Department of Environmental Protection. The consulting engineer and contractor had a problem; with limited space, how do they keep stormwater on site with the addition ...

  • Monitoring the holy ground of FC Basel - Case Study

    The grass on athletic grounds, particularly in large stadiums, is not only an important concern for sports but also one of the largest cost drivers. Therefore, the monitoring and care of the grounds takes on special significance. PlantCare has installed a soil moisture monitoring system as part of the redesign of the entire playing field at St. Jakob-Park stadium in Basel. The system measures ...


    By Eijkelkamp Soil & Water

  • DFW direct bury of storm sewer case study

    Airport Solutions North Texas Contracting has placed the first HOBAS pipe at DFW International Airport in the Dallas/Fort Worth mid-cities. That first installation was a repair to an 84-inch corrugated steel culvert that had failed and created a sink hole approximately 30 feet deep and almost 20 feet in diameter after a series of heavy rains in 2007. North Texas Contracting of Keller, Texas ...


    By Hobas Pipe USA

  • Highland Tank 50,000 Gallon Oil/Water Separator installed at Con Ed Mott Haven Power Distribution Center

    Before the Brooklyn Bridge spanned the East River, before the Statue of Liberty first graced New York Harbor, and before skyscrapers rose above New York City's streets, the utility companies that would eventually become Con Edison were already building the energy infrastructure needed to fuel and sustain the city's growth. Today, Con Edison operates one of the largest and most complex — yet ...

  • Technical brief - fire prevention takes hold

    Supporting contributors to the Code include The Association of British Insurers, The Chief Fire Officers Association and the London Fire Brigade. The Code is being incorporated in many site insurance contracts. Noteworthy is “non-compliance with this Code could possibly result in insurance ceasing to be available or being withdrawn, resulting in a possible breach of a construction contract ...

  • Detection of polychlorinated biphenyls (PCBs) in concrete using the dtech test system

    MATRIX: Concrete ANALYTES: Polychlorinated biphenyls (PCBs) RANGE OF DETECTION: DTECHTOR: 500 ppb to 25 ppm (as aroclor 1254). Color Card: 1 ppm to 25 ppm (as aroclor 1254) MATERIALS: DTECH PCB Test Kit. DTECH PCB Sample Extraction Kit. Reagents: table salt (sodium chloride) or salt packets used by restaurants ...


  • Detection of polychlorinated biphenyls (PCBS) in concrete

    MATRIX: Concrete ANALYTES: Polychlorinated biphenyls (PCBs) RANGE OF DETECTION: 500 ppb to 10 ppm MATERIALS: SDI PCB RaPID Assay® Kit. SDI RaPID Prep® PCB Sample Extraction Kit. SDI RaPID Prep Soil Collection Kit. Reagents: table salt (sodium chloride) or salt packets used by restaurants (e.g. Dixie ...


  • Detection of polychlorinated biphenyls (PCBs) in concrete using the ensys test system

    MATRIX: Concrete ANALYTES: Polychlorinated biphenyls (PCBs) RANGE OF DETECTION: Aroclor 1254: 0.5 ppm Aroclor 1260: 0.5 ppm Aroclor 1248: 1.0 ppm Aroclor 1242: 2.0 ppm Aroclor 1232: 4.0 ppm Aroclor 1016: 4.0 ppm MATERIALS: Ensys PCB in Soil Test Kit. Ensys PCB Sample Extraction Kit. Reagents: table salt ...


  • Thermal Treatment Technologies

    Hot gas decontamination: Hot gas decontamination is a technology still in the pilot-scale of development that can be used for decontamination of explosives-contaminated masonry or metallic structures. The method involves sealing and insulating the structures, heating with hot gas stream to 260 °C (500 °F) for a prescribed period of time, volatilizing the explosive contaminants, and destroying ...

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