dredge Articles
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Environmental Impacts of Dredging on Seagrass Habitats – Part 2
A worldwide study showed in 45 cases, a total loss of 21,023 hectare (or general surface area) of seagrass due to dredging. Seagrass serves as an ecosystem, a food, and a home to many high risk marine species. Dredging, maritime activities, and various enterprises of man contribute to the death of aquatic ecosystems every day. The interesting thing about dredging is that it’s actually ...
By WKC Group
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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 approximately 1,000 feet long and 500 feet wide and ...
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Rotomite 180 application - dredging benzyne at 12 foot dept.
Project Location: Northern Illinois, Dates: April-November 1992, 1993 Equipment Used: Crisafulli Rotomite 180P Self Propelled Dredge PROJECT DESCRIPTION: To dredge benzyne from the bottom of a 12 foot basin approximately 1,000 feet long and 500 feet wide and discharge it into the water column so biologic treatment (BUGS) could work. Once the basin contained an acceptable level (%) of benzyne ...
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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 Three Crowns Golf Course, Casper, Wyoming. When we called to find out if the deadline had been met, we were told it was close, within one week. Three Crowns ...
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Proactive Dredging: A Little Now or a Lot Later
By Isaiah Helm, Applications Engineer, SRS Crisafulli If public works departments had a list of fun things to do, dredging sediment out of holding ponds would not be on it. It’s like cleaning the shower in your bathroom. Whether you make it a frequent quick job or an occasional laborious task, time and effort must be set aside to maintain a fixture that is as critical as it is ...
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What are the Different Types of Dredges?
A dredge is a technical piece of equipment used to remove sediments or debris from from the bottom of shipping channels, rivers, harbors, and other bodies of water. Basically, dredging is a form of excavation that is performed either underwater or partially underwater. Dredging is used to improve existing water features. A dredge can also be used to construct dams, dikes, and other controls for ...
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Bozeman wastewater treatment plant, Crisafulli FLUMP with pond liner protection system-case study
Paul Layton, Assistant Superintendent, City of Bozeman, MT Public Works Dept. Commenting on the Crisafulli FLUMP with Crisafulli’s Pond Liner Protection System Purchased in 2003 for Bozeman’s Wastewater Treatment Plant "I really like the remote-control aspect of the unit. We can just have an operator sitting up here on the shore, out of the sludge, operating in a very clean ...
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Dredging Q+A: Top 8 Questions Answered
We strive to provide our customers with as much information as they need to make informed decisions about the dredging equipment they choose. So we compiled some of the questions (and answers!) asked most frequently for your quick review. Q: What kinds of dredges does SRS Crisafulli make? A: SRS Crisafulli produces hydraulic dredges with horizontal auger cutterheads in two model groups - ...
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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 the lagoons are lined, and are operated ...
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Sludge reduction performance focus: Lagoon sludge case study
In-Pipe Technology Pipe Technology® Company, Inc., Company, Inc., Company, Inc., is an effective, environmentally is an effective, environmentally is an effective, environmentally-friendly, and fiscally friendly, and fiscally responsible method to reduce accumulated lagoon solids. By reducing accumulated sludge volumes by 40% to 85%, In- volumes by 40% to 85%, In-Pipe Technology has helped ...
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Rotomite application, Decatur, Arkansas
The Town of Decaur, Ark., is using a self-propelled dredging system as part of a new biosilids management program designed to reduce the cost of sludge disposal and increase solids detention time in-plant. While less than 1,000 people live inDecatur, the town's wastewater treatment plant handles flow equivalent to a population of 40,000. The primary contributor to these flows is a poultry ...
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Rotomite application serving municipal WWTP, Decatur, Arkansas-case study
As reported in WaterWorld, Serving the Municipal Water/Wastewater Industry In 1996, the Town of Decaur, Ark., purchased a self-propelled Rotomite 180-P dredging system as part of a new biosolids management program designed to reduce the cost of sludge disposal and to increase solids detention time in-plant. While less than 1,000 people live in Decatur, the town's wastewater treatment plant ...
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Hydroman™ Submersible Dredge Pump
Hydroman™ Submersible Dredge Pumps are widely used in the industries for pumping out the sand, slurry, gravel, sludge materials out of the tanks or river. Hydroman Dredge Pumps are placed below the liquid level and therefore, It gets the name as submersible electric pumps. Owing to Hydroman’s accurate design, Hydroman pumps entirely clear the tanks and removes all the slurry liquid, waste water ...
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Project - A Crisafulli Dredge in Ecuador
SRS Crisafulli, Inc. was chosen in January 2017 as the dredging supplier for a multi-million-dollar renovation to the water treatment plant oxidation lagoons in Guayaquil, Ecuador. The remote-controlled diesel dredge equipment was delivered in July, 2017. Installation and training was provided by engineers from the Eastern Montana manufacturer in October 2017. Population growth in the largest ...
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Natchez Wastewater Treatment Facility Finds Success with New System
A popular magazine at the SRS Crisafulli offices is Treatment Plant Operator (TPO), which serves municipal water system operators. The November 2011 issue of TPO featured the Natchez, Mississippi Wastewater Treatment Facility in their Top Performer - Biosolids section, with an article titled "Sun Dried Success". "Natchez is the site of a new “greenhouse” solar biosolids drying ...
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Crisafulli Flump Dredges Operate at Mines - Case Study
Mining companies find Crisafulli FLUMP dredges to be an to be an excellent choice in challenging environmental conditions and applications. FLUMP (floating lagoon pumper) dredges are small, easy to transport, remote controlled and extremely productive. From North and South America to West Africa, SRS Crisafulli FLUMP dredges are cleaning mining ponds/lagoons. Most operating mines have overflow ...
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Dredging and Shoreline Remediation
Many situations can complicate a shoreline’s integrity. These can range from flooding, hurricanes and man-made disasters and can even include aquatic harvesting and human recreation. Making efforts to protect a shoreline from these intrusions helps protect economic and recreational interests. Shoreline remediation is an investment in the overall economic and natural habitat of a ...
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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
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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
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Geotube technology provides solution for detroit river environmental cleanup - Case Study
The Largest Facility of Its Kind Under Construction In the Country PENDERGRASS, GA —A simple idea in environmental cleanup is saving the taxpayers of Detroit a Substantial amount of money while taking care of an important environmental cleanup project. The City of Detroit Water and Sewer Department (DWSD) is implementing Miratech's Geotube technology at its Conner Creek facility to ...
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