environmental water dredging Articles

  • Lake dredge

    Final Dredge Effluent Polishing with CESF Treatment using ChitoVan Chitosan Lactate Hosting over 400 different species of plant, bird, fish, reptiles and amphibians, Burnaby Lake is the most ecologically valuable resources in the Vancouver, BC area. Over the course of many years of nearby development the lake had become filled with a substantial amount of sediment. To protect and enhance the ...


    By Dungeness Environmental

  • 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 ...

  • Dredging Short Courses

    By Eric Lillberg, SRS Crisafulli Senior Applications Engineer When I first started as an applications engineer for SRS Crisafulli, I searched for information on the subject of dredging. I was surprised to find there was very little non-commercial content available. I have since found a pair of short courses, offered annually by Texas ...


    By SRS Crisafulli, Inc.

  • Dredging for Gold in Remote Places

    By Dave Stoltenberg, Dredge Rental Specialist with SRS Crisafulli From Alaska to West Africa, SRS Crisafulli dredging experts are busy installing dredges and training operations personnel at producing gold mines.  Nearly all operating mines have overflow lagoons and impoundments for the collection of particulates, overflow mud, and tailings.  Typically ...


    By SRS Crisafulli, Inc.

  • Dredging the Back Nine: Stormwater and Water Treatment Ponds

    SRS Crisafulli's FLUMP Dredge was in the news this spring for its role in meeting the opening day schedule at a unique Wyoming golf course. The Casper Star-Tribune ‌reported on the FLUMP's contribution to a remediation effort at the ...


    By SRS Crisafulli, Inc.

  • SRS Crisafulli Explores Dredging and Hydropower

    SRS Crisafulli Explores Dredging and Hydropower Energy production and consumption worldwide is influenced by many factors.  Resource availability, economic activity, population growth and environmental ...


    By SRS Crisafulli, Inc.

  • Is environmental justice all dried up? Drilling for water in the everglades dredges up questions regarding the potential for a just environmental sustainability

    This paper considers the social, environmental, and political implications of plans to employ aquifer storage and recovery (ASR) technology as a major part of the Comprehensive Everglades Restoration Plan (CERP) as exemplary of the predicament inherent to the challenge of achieving the goal of just environmental sustainability. Although ASR promises to be a low cost solution to regional water ...


    By Inderscience Publishers

  • Lagoon Maintenance Dredging every Decade

    SRS Crisafulli has discovered the Rural Water Association.  This winter, Troy Fercho, Frank Robinson, Tristan Hoff and I attended shows in North Dakota, Montana, Minnesota, and Idaho.   At these Rural Water Association Trade Shows, we promoted SRS Crisafulli's dredge equipment and rental services to assist communities in managing the long term, low cost ...


    By SRS Crisafulli, Inc.

  • Water Quality Risk Assessment for Dredging Operations, Plymouth Sound, UK

    ABSTRACTAs part of a formal Environmental Impact Assessment for a port development project in Plymouth Sound, UK, the potential risk of a deterioration in water quality from capital dredging was informed by the application of a probabilistic risk approach. In the absence of UK statutory sediment quality guidelines (SQGs) to assess acceptability of dredging operations, non-statutory guidelines are ...


    By Oracle Crystal Ball GBU

  • How Marinas Benefit From Scheduled Dredging

    Scheduled dredging enables marina owners to increase their profits and minimize their environmental impact. The purpose of this article is to highlight the importance and value of scheduled dredging for marinas. Maintaining adequate water depths in each boat slip and on approaches to marinas at low tide is essential to attract and keep the largest yachts in the regional ...


    By SRS Crisafulli, Inc.

  • Rotomite-6000 contract dredging of various materials

    Customer: Georgia Dredging And Dewatering/Eco-Vac Type of Facility: Environmental Services & turnkey Dredging & Dewatering services Georgia Dredging and Dewatering developed out of the need to contact services other than those previously provided by vacuuming and jetting alone. David Grapengeter, President of ECO-VAC, Inc., and Jay Matthews teamed up to build a ...


    By SRS Crisafulli, Inc.

  • The Experts’ Views of Horizontal Hydraulic Auger Dredging

    I attended the 42nd Texas A & M University dredging short course in January 2013. Despite the mountain of excellent information I gleaned from the course, I was disappointed that my dredging field wasn’t featured. Horizontal hydraulic auger dredging ...


    By SRS Crisafulli, Inc.

  • Four Major Benefits of Horizontal Hydraulic Auger Dredges

    Horizontal hydraulic auger dredging has been around for nearly 50 years, but remains the unknown stepchild of the dredging world. That may be changing as environmental dredging becomes more prominent. Horizontal hydraulic auger dredges are ideal for environmental projects for several reasons. First, horizontal hydraulic auger dredges are small. I know everybody wants bigger, but small has ...


    By SRS Crisafulli, Inc.

  • Sediment Spill Monitoring from Dredging, using the SediMeter

    Strategies for sediment spill monitoring and siltation measurements. The SediMeter allows a gradual increase in the equipment investment as conditions merit, from a single stand-alone logger, to a real-time monitoring network in which all previously purchased equipment can be included. Sediment spill causing siltation gives rise to two separate environmental problems: A suspended sediment plume ...


    By Lindorm, 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.

  • 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.

  • PCB dredging cleanup project begins on Lake Cochituate (USA) case study

    A large ring of yellow buoys floats beside an a LWT 8” Swinging Dragon swinging ladder dredge on the surface of Pegan Cove, marking the area where contractors have started removing sediment contaminated with PCBs, left by an accident at the Soldier Systems Center 30 years ago. The PCBs were found in the section of Lake Cochituate just to the east of Natick Labs. They came from a ...

  • Why Zambia? SRS Crisafulli Mine Dredges Provide Useful Options.

    African Growth and Opportunity Act, or AGOA Forum 2011, Lusaka, Zambia was an odd destination.  But that is where a Montana delegation of Small and Medium Enterprises, or "SMEs" went in early June, 2011.  The overarching goal of the AGOA Forum is to increase US - Africa trade volume.  Why would SRS Crisafulli participate?  SRS ...


    By SRS Crisafulli, Inc.

  • SRS Crisafulli, Inc. ships a shallow draft dredge to Manila, Philippines to ring in 2013

    After a year of close collaboration with the customer, SRS Crisafulli’s versatile resources in both engineering and manufacturing resulted in shipment of a Rotomite SD-110 shallow draft dredge to Maynilad Water Service in the Philippines. Three Philippine firms played key roles to close the deal – i.e., Maynilad Water Services, a private water and ...


    By SRS Crisafulli, Inc.

  • Dredging at weldon spring super fund project Morrison Knudsen - St. Charles, Missouri, USA

    Remote controlled Dredging proved to be the best method of removing radioactive sludge from settling ponds of a former uranium processing plant near St. Charles, Missouri. Dredging keeps the material wet and out of contact with the atmosphere throughout the removal and treatment process, eliminating the danger of contaminates becoming airborne. The Weldon Spring Site Remedial Action Project ...

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