Dredging Systems Articles

  • 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 OTT HydroMet

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • Dredge caustic and abrasive materials in South Korea-case study

    Customer: Zinc mining & processing facility, South Korea. Problem: How to remove 200,000 cubic meters of 325 mesh goethite (pH 2.2 - 2.5 range; sulfuric acid) from a lined pond with dimensions of 120m x 253m. Since the material had settled and was resting on the pond bottom, dredging was selected as the appropriate removal method. No standard acid-resistant dredge ...


    By SRS Crisafulli, Inc.

  • Bound for Venezuela-case study

    SRS Crisafulli, Inc., founded in 1966, is one of a select few manufacturers of specialized, engineered dredging systems in the United States. The company is now, and has been since its inception, located in Glendive, MT. From its beginning, SRS Crisafulli has served agriculture with pumping equipment for irrigation, flood control and dewatering. The past decade has been a period of ...


    By SRS Crisafulli, Inc.

  • Societe des Mines de Syama - Mali, West Africa-case study

    SRS Crisafulli manufactured a stainless steel 4" Severe Duty FLUMP dredge system for Societe des Mines de Syama's gold mine in Mali, West Africa. The FLUMP dredges and pumps solids from a tailings pit back into the leaching process to reclaim gold, which otherwise would be lost. SRS Crisafulli designed a stainless steel FLUMP dredge to combat the corrosive environment. There have been enormous ...


    By SRS Crisafulli, Inc.

  • Rotomite 180-P application - dredging benzyne at 12 foot depth-case study

    Marshall-Bond Pumps, Jeffrey A. Simpson, New London WA; 630-978-7867, Fx 630-978-7872, Marbond7@hotmail.com DREDGING CASE STUDY, Project Location: Northern Illinois, Dates: April-November 1992, 1993 Equipment Used: Crisafulli-Rotomite 180-P Self-Propelled Dredge PROJECT DESCRIPTION: To dredge benzyne from the bottom of a 12 foot basin ...


    By SRS Crisafulli, Inc.

  • Cox creek spillway improvements access road, Baltimore, MD - Case Study

    GEOTERRA® mats were employed for site access roads to an outfall from a dredge material containment facility. Because the outfall is located on the bay side of a containment dike, it is considered an environmentallysensitive area and lies within Maryland’s Critical Area—the naturally vegetated area within specified boundaries of the state’s tidal waters. Low Impact ...


    By Presto Geosystems

  • Piedroba Dewaters Slurry, Returns Clean Water to Holmes Beach Canals

    This project was a successful application of a total cleaning system (TCS), where the particular type of solids of the sediments permitted the dredger to avoid the costly construction of a dredged material maintenance area (DMMA), or the transportation and tipping fees for a municipal landfill. The surface waters were cleaned in tandem, and contributed to a higher quality benthic environment in ...

  • Mine Restores Basin Capacity with Hydraulic Dredge Case Study

    SRS Crisafulli introduces the Rotomite model 6000-CD Dredge SRS Crisafulli designed and built the self-propelled, steerable, diesel powered all-purpose dredge for both abrasive and soft slurries with a cast alloy pump, and 8” discharge, in the fall of 2013. The dredge was tested at Fisher Sand and Gravel’s pond on Circle Highway northwest of the Company’s Glendive, ...


    By SRS Crisafulli, Inc.

  • Mechanical Dredging Vs. Biological Dredging

    For many years, mechanical dredging has been the solution for dying ponds, lakes, retention basins, and rivers. Dredging removes sediment, some excess nutrients, pollutants and organic matter. By increasing the depth in this way, weed growth is discouraged, water temperature lowered and oxygen levels may be increased. Although mechanical dredging can help in these ways, it only solves part 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.

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