dredging project Articles

  • The world`s largest stormwater alum treatment facility - in Florida

    Stormwater in the Florida canal system is slow moving.  The green, murky water in the lakes fed by the Apopka-Beauclair canal is caused by an overabundance of algae-feeding compounds, mainly phosphorus, resulting in chronic algal blooms.  The Nutrient Reduction Facility (NuRF) project designed a system to inject aluminum sulface (alum) into the nutrient-laden water in direct proportion ...


    By SRS Crisafulli, Inc.

  • A complete solution

    Widely recognized for their ability to accurately classify specialist sands, CDE have now turned their expertise to lignite removal. Concrete producers tend to shun sand with visible lignite as it rises to the surface of concrete mixes — a particular problem for flooring applications. This has had a major impact on the market value of lignite-affected sand in regions where lignite is ...


    By CDEnviro

  • 3. The Regge Basin

    In this chapter we will introduce the river, its basin and the river renaturalization project. Our case, the Regge River, is the most important river in the western part of the Twente region. Numerous smaller rivers and creeks flow into this river. In the periods 1848-1879, 1894-1913 and 1925-1935 the Regge suffered from piecemeal canalization efforts. This ...


    By IWA Publishing

  • Boskalis and our BBV Pumps environmentally friendly high flow pump unit

    Boskalis Nederland is a part of Royal Boskalis Westminster N.V. Boskalis was established in 1910 and has expanded from a local dredging contractor to a leading global maritime services company with over 11.000 employees. Originally, dredging and earth moving were the core activities of the company. They are now additionally active in the dredging and inland infra, and offshore energy sectors. The ...


    By BBA Pumps

  • SRS Crisafulli Guest Author David Zamida on Gold Mining (part 3 of 3)

    Article submitted by David Zamida, Mineral Project Manager and Mining Property Broker for BCgold.com Superfund The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as Superfund, was ...


    By SRS Crisafulli, Inc.

  • US EPA Site Final Minergy Innovative Technology Evaluation Report (February 5, 2004)

    The Glass Furnace Technology (GFT) treatment process was developed by Minergy Corporation (Minergy) as an ex situ remediation technology to treat river sediment contaminated with polychlorinated biphenyls (PCBs), other organic compounds, and metals. An evaluation of the technology was conductedby the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation(SITE) ...


    By Minergy Corporation Limited

  • Replacement Parts - Are They Worth Stocking?

    Replacement Parts - Are They Worth Stocking? We have all been there. You are right in the middle of a project and something goes out.  Of course it’s going to happen in the middle of your project – parts ...


    By SRS Crisafulli, Inc.

  • Water Level Measurement Network Polder Monitoring Areas - Case Study

    Project name Water Level Measurement Network Polder Monitoring Areas Client Rijnland District Water Control Board Country The Netherlands Background and aim project Chris van Vliet (team leader of Sample Taking at HHRS of Rijnland) explains why this project was carried out: “The most ...


    By Eijkelkamp Soil & Water

  • Nakoma Brook flood & hydraulic analysis & engineering study Sloatsburg, New York

    Performed Hydrologic Studies and Hydraulic Engineering Investigations and Designs for the Nakoma Brook Watershed located in Western Rockland and Southeastern Orange Counties, encompassing over 8 square miles. The study area focus was in the Village of Sloatsburg, NY at the intersection of Route 17 and Eagle Valley Road. Flood Control analyses were conducted using USACOE's HEC-1 and HEC-2 computer ...


    By GEA Engineering PC

  • Evaluation of Metals, Metalloids, and Ash Mixture Toxicity Using Sediment Toxicity Testing

    In December 2008, a release of 4.1 million m3 of coal ash from the Tennessee Valley Authority Kingston Fossil plant occurred. Ash washed into the Emory River and migrated downstream into the Clinch and Tennessee Rivers. A Baseline Ecological Risk Assessment evaluated risks to ecological receptors from ash in the river system post‐dredging. This paper describes the approach used and results ...


    By John Wiley & Sons, Ltd.

  • In Situ Sediment Treatment Using Activated Carbon: A Demonstrated Sediment Cleanup Technology

    This paper reviews general approaches for applying activated carbon (AC) amendments as an in situ sediment treatment remedy. In situ sediment treatment involves targeted placement of amendments using installation options that fall under two general approaches: 1) direct application of a thin layer of amendments (which potentially incorporate weighting and/or binding materials) to surface ...


    By John Wiley & Sons, Ltd.

  • Geotube Containment and Dewatering technology was used to dispose of slurry waste from North River Mine - Case Study

    At the North River Mine in Berry, AL, two waste streams are created from the processing plant, coarse rock and fine rock particles. Coming from the processing plant, the fine rock particles are suspended in water forming a slurry. This slurry is normally disposed of via surface impoundments or injected into abandoned underground mine workings. The volume of this waste stream is very significant ...

  • Supreme Court Weights In On Wetland Development

    Environmental Alert The Clean Water Act provides that "navigable waterways," or "waters of the United States," are subject to its provisions. Wetlands adjacent to "navigable waterways" are considered to be a "water of the United States" and are also within the jurisdiction of the Clean Water Act. The Army Corps of Engineers ("Corps"), the agency charged with administering the federal ...

  • Lake Rehabilitation Baku, Azerbaijan - Case Study

    Aquaread’s exclusive distributor in the Netherlands, Eijkelkamp Soil & Water, has been involved in a major project installing Aquaread equipment in Baku, ...


    By Aquaread Limited

  • Developing green waterfronts

    Developing, extending, reconfiguring and managing marinas to today’s high standards can be a complex matter requiring a wide range of design, technical and environmental input. To ensure a successful planning application, a sound design, legal compliance and good environmental balance have become a pre-requisites. To assist our clients, WSP Group and RGA Waterfront have teamed up to offer bespoke ...

  • SRS Crisafulli Guest Author David Zamida on Gold Mining (part 1 of 3)

    Article submitted by David Zamida, Mineral Project Manager and Mining Property Broker for BCgold.com Impacts of gold mining and mineral processing on communities and the ...


    By SRS Crisafulli, Inc.

  • Special Report: Water Resources Bill Draws Interest From Cities, Utilities, Industries

    The forces driving the Water Resources Reform and Development Act of 2013 (H.R. 3080) can be seen in the large array of cities, counties, utilities and industries hoping to see the bill become law. At least 496 nonprofit organizations, companies, state and local governments and other entities have disclosed ...


    By Bloomberg BNA

  • WEFTEC’ 2013 Lagoon wastewater treatment using Innovative bioaugmentation technology case study

    Introduction and Problem Statement Lagoon wastewater treatment systems employ a combination of physical, chemical, and biological processes to treat wastewater. Lagoon wastewater treatment systems are simple, natural, energy efficient, and one of the most cost effective treatment options, especially for small and rural communities. Lagoon systems are easy to operate, require lower ...

  • De Pere & Manitowic, WI - Dewatering / Filtering Drilling Sediments - Case Study

    TenCate develops and produces materials that function to increase performance, reduce costs and deliver measurable results by working with our customers to provide advanced solutions. THE CHALLENGE Lunda Construction was subcontracted by Michels Corporation to provide 35' diameter down-shafts to facilitate the installation of a pipeline between the Manitowoc River and the Fox ...

  • Dewatering of Boiler Ash - Case Study

    Ten Gate develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE PROJECT The Wheelabrator Technology Group provides design/build and operation of trash-to-energy facilities. The Wheelabrator facility located in Lisbon, CT utilizes a storage tank for ...

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