Crisafulli Dredges
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Municipal customers for Crisafulli's FLUMP dredges include 20 water treatment plants and 22 wastewater treatment plants. See FLUMP product video in Quick Time Player format.
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| Engineer’s Sketch of FLUMP (floating lagoon pumper) shows “ladder” fully extended. The FLUMP is a floating platform to hold the ladder, pump, cutterhead, and motor. Offered with a wide variety of options, the FLUMP is highly versatile. Cutterhead options include - the powerful Cobra to cut sludge, a Pond Liner Protection System, a weed cutterhead, and a vacuum “cutterhead”. Cutterheads come in different widths from 4.0 feet to 8.5 feet. Motor horsepower can range from 15 to 150. Various Crisafulli engineered pump sizes from 3 inch discharge diameter to 6 inch are used. Crisafulli custom engineers each FLUMP to the customer’s particular requirements. Sludge processing runs from 15 to 150 cubic yards per hour. Crisafulli builds the FLUMP in carbon or stainless steel. The simplest FLUMP is operated manually. The most sophisticated FLUMP is fully automated (all functions) and remote controlled. The reliable FLUMP dredges toxic and non toxic materials. The FLUMP is a versatile sludge removal system proven effective in a wide range of applications throughout the world and is supported by superior Crisafulli service worldwide. You are invited to check us out with any one of our satisfied customers.
This letter is to inform you of our success using SRS Crisafulli standard duty flumps to remove settled solids from two of our primary settlings basins at the Hanahan Water Treatment Plant. The two basins were built around 1904 and had no provisions for removal of settled solids other than draining the entire contents. These basins contain approximately six million gallons each and produce twenty-two million gallons of treated water per day each. The draining of either of these units every four months caused immense loading problems for our solids handling facility, not to mention the loss of a major portion of our water production capacity. This often occurred during peak demand periods when volume and water quality were critical. We began looking at sludge dredges but were very cautious of cutter heads that might disturb the settled solids blanket affecting water quality. Our goal was simple. Remove the solids on a continuous basis without affecting water quality and keep both basins in service while this was being performed. We purchased a standard duty flump and removed and replaced the cutter head with a siphon manifold. We were able to remove solids at a rate of 300 to 500 gallons per minute on a daily basis without affecting water quality. Shortly, we purchased a second flump and made the same modification. The use of these two units has allowed us to solve two major problems at the Hanahan Water Treatment Plant - (a) keeping the two major basins in service while we remove solids on a continuous basis, and (b) eliminating a frequent solids loading problem enabling our solids handling facility to function as designed without overload. Now, with the use of the modified standard duty FLUMPS, we only drain the basins annually for a scheduled routine cleaning and maintenance. We have been very pleased with the service that these units have provided and would recommend them to anyone having a similar problem. Shown below is the City of Charleston's FLUMP with the custom siphon manifold.
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