Dredging Systems Articles

  • Dredging Up Power

    Caterpillar Marine was selected to power three 3500 m³ trailing suction hopper dredgers for the Jan De Nul Group with Cat 3500E IMO III and EPA Tier 4 certified engines. Cat said the 3500E incorporates selective catalyst reduction (SCR) after-treatment technology with closed-loop NOx sensing and application optimized performance for minimized owning and operating costs. “Embedded ...

  • The elimination of fecal coliforms and e. coli in lagoons

    Many horse racetracks throughout the world are designed to drain water from the track into a lagoon that is located in the infield of the track. Due to the track being predominantly used for horse racing, there is a high amount of fecal coliform, especially of the Escherichia coli species, bacteria in the water that drains from the track. During the racing season, fecal coliform and E. coli ...


    By Reliant Water Technologies

  • Case study - Control of dredging works in the Danube River - Austria

    The Austrian waterway management has introduced an automatic system to monitor a series of barges, which calculates the dredged material as a basis for handling invoices of the dredging companies. Before converting to a remote data transmission option, all calculations were entered manually. The datalogger saves the cost for hand-writing documentation of the dredging works by external staff and ...


    By The OTT Hydromet Group

  • What’s in Your Water

    Water can be said to be the essence of life. Indeed, in many indigenous cultures, water is strongly linked to a people’s cultural identity. With the unfortunate news about the amount of lead found in Flint, Michigan’s public water system, perhaps more scrutiny and resources will be designated to improve and monitor this vital resource. But before you pour water into your glass, ...

  • Ceresco Dam Case Study

    Global was contracted by Terra Contracting Services, LLC to serve as Water Treatment Specialists in response to the 2010 Enbridge Oil Spill along the Kalamazoo River. An energy pipeline rupture caused 877,000 gallons of heavy crude oil to spill into Talmadge Creek in Calhoun County, Michigan, which flows into the Kalamazoo River. Global engineered a processing plant for material and slurry ...


    By Global Treatment Solutions

  • Can’t Afford Pond Dredging? We have solutions.

    Ponds and lakes naturally accumulate sludge and nutrients that lead to eutrophication and eventually pond or lake death. Natural succession is driving all lakes and ponds to become meadows and eventually forest. To slow or reverse this process and maintain a lake or pond beneficial microbes are critical. These beneficial microbes improve water quality by reducing nutrients and sludge through ...


    By Keeton Industries, Inc.

  • Using a modified dredging elutriate testing approach to evaluate potential aquatic impacts associated with dredging a large freshwater industrial Harbour

    Potential adverse impacts to the aquatic environment should be minimized whenever possible during an environmental dredging project by selecting realistic and technically feasible environmental targets. These targets need to balance short term impacts with the longer term benefit of removing contaminated sediments from the environment. Environmental dredging is part of the planned remediation ...


    By John Wiley & Sons, Ltd.

  • Case study - Dredge site testing PAHs in sediment

    The Grand Calumet River is a tributary located in Northwest Indiana, which flows into Lake Michigan. Years of industrial pollution caused by nearby steel mills, petro-chemical plants and oil refineries have contaminated the river with oil and other pollutants, which threaten human and ecological health in this watershed. The primary contaminants of concern are carcinogenic Polyaromatic ...


    By Sitelab Corporation

  • Rotomite-6000-CD Dredge System - US Copper Mine-case study

    SRS Crisafulli's Integrated Product Solutions - To remove water, soft and abrasive material, sludges, and slurries from Industrial, Municipal, Agricultural, and Government Lagoons, Ponds, Lakes, Canals, and flooded and flood threatened areas. And to irrigate farms and ranches. Dredge Rentals. Many customers rent Crisafulli’s Rotomite and FLUMP dredges on ...


    By SRS Crisafulli, Inc.

  • Crisafulli submersible pumps and power units-case study

    In June, 1997, Mr. Quinn of EPCO, the customer's designated agent, inspected the systems at Crisafulli's manufacturing plant, and these made in Montana pumping systems were tested and shipped to Siberia. SRS Crisafulli, Inc., founded in 1966, is one of a few select manufacturers of specialized, engineered pumping and dredging systems in the United States. From its beginning, SRS Crisafulli has ...


    By SRS Crisafulli, Inc.

  • Rotomite dredging iron mill scale-case study

    Crisafulli's Rotomite-6000. Dredging highly abrasive mill scale. Customer: The customer purchased its first SRS Crisafulli Rotomite, a Model 180P, in August 1997, and purchased its second Rotomite, a 6000 model, in the summer of 2007. Application and reason for dredging: The customer provides slag processing, metal recovery, material ...


    By SRS Crisafulli, Inc.

  • Engelhard Corporation (formerly Mearl Corp.) - pigment plant, Crisafulli automated flump system-case study

    Customer: Engelhard Corporation (formerly Mearl Corp.) Contact: Paul Ellington. Type of Facility: Pigment plant. Location: North Charleston, SC. Date of install: 1996 February 1996. Mearl Corporation owns and operates an Automated FLUMP™ System manufactured by SRS ...


    By SRS Crisafulli, Inc.

  • Rotomite application: dredge caustic soda from a mud lake-case study

    Alumina Partners of Jamaica, Construction Department, June 25, 1996, Gary Benson, Fax 809 962-4114 Letter addressed to Jeffrey K Minsell, Sales Engineer, SRS Crisafulli, Inc. "The Rotomite 180P has performed very well for us to this date. Our application is a very bad environment dredging in a caustic soda mud lake. All components are fine to this point except the few aluminum parts which we ...


    By SRS Crisafulli, Inc.

  • Rotomite 6000 dredge system - centennial coal-case study

    Centennial Coal's Mannering Colliery mine averages over 1M tons of coal per year when operating at full capacity. The mine's run-off ponds' sludge issues prompted Centennial to contact Dredging Solutions, SRS Crisafulli's Dealer in Australasia, and an experienced dredging contractor.  Dredging solutions deployed the Crisafulli Rotomite 6000 auger suction dredge system because of the ...


    By SRS Crisafulli, Inc.

  • Dredging Contractor Using Rotomite 6000-case study

    Customer: Georgia Dredging And Dewatering/Eco-Vac Contacts: Jay Matthews and David Grapengeter Type of Facility: Environmental services & turnkey dredging & dewatering services Georgia Dredging and Dewatering developed out of the need to provide contract services other than those previously provided by vacuuming and ...


    By SRS Crisafulli, Inc.

  • Dual Construction Company, 3` Crisafulli FLUMP-case study

    Automated, remote controlled, portable FLUMP can dredge & pump 80 cubic yards of solids per hour. Ken Nelson, Dual Construction Company, Texarkana, Arkansas purchased a 3" Crisafulli FLUMP dredge in November 2004. "A super product at a reasonable price." In his customer satisfaction survey, Ken considered important these factors important or very: "product ...


    By SRS Crisafulli, Inc.

  • A major Canadian mining company, 4 Crisafulli FLUMP dredges-case study

    August 2007. A major Canadian mining company purchased four Crisafulli FLUMP dredges to replace their pond cleaning methods (manually hosing solids to a sump pump) and reported that the operation of the FLUMPs exceeded expectations; the FLUMPs worked very well and removed lots of solids; the FLUMPs performed much faster and more easily than the prior method. The mining company made the ...


    By SRS Crisafulli, Inc.

  • Harlem, MT USA WWTP Uses FLUMP - 2013-case study

    Excessive lagoon sludge accumulation contributes to the poor performance of any treatment system.  Removing sludge from lagoon cells improves treatment and addresses violations in the Department of Environmental Quality enforcement action. The City of Harlem, Montana has a three cell partially mixed aerated lagoon system constructed in 1985.  The lagoon system discharges to the Milk ...


    By SRS Crisafulli, Inc.

  • Customer comparison of Rotomite-6000 to competitive products-case study

    Crisafulli Sales Engineer's field report (May 2003) The Rotomite-6000 was a pleasure to operate. We dredged bottom ash and silt. The Rotomite Cobra Cutterhead's down pressure and articulation capabilities make the Rotomite-6000 effective against crusted sludge. The Customer had an unsatisfactory experience with a competitor's dredge, which they had rented the prior year: the ...


    By SRS Crisafulli, Inc.

  • Rotomite dredges food processing company-case study

    September 2007 A major US food processing company purchased a Crisafulli Rotomite-6000 dredge to replace two existing dredges made by another company, to clean and maintain its factory waste products settling lagoons, and made the following comments about Crisafulli product quality and customer service - "The Rotomite dredge was delivered on time, per specifications, and in good condition; the ...


    By SRS Crisafulli, Inc.

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