Case Histories and Testimonials
FLUMP Case History and Testimonial - Municipal
Application: Solids removal from primary settling basins, Kenneth A. Dorr, Assistant Superintendent
Hanahan Water Treatment Plant, Commissioners of Public Works, City of Charleston, South Carolina
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.
August 2007. A major Canadian mining company purchased four Crisafulli FLUMP dredges to replace its former pond cleaning methods (manually hosing solids to a sump pump) and reported that the operation of the FLUMPs exceeds expectations; the FLUMPs work very well and remove lots of solids; the FLUMPs perform much faster and more easily than the former method.
The mining company made the following comments about Crisafulli product quality and customer service - the FLUMP dredges were delivered per specifications, and in good condition; the FLUMPs were good quality and good value, performed as expected and met the customer’s needs; the Crisafulli sales staff was knowledgeable about the dredges, provided adequate technical information, and Crisafulli’s Operations & Maintenance Manuals contained adequate parts/service information.
The customer said that in its buying decision these factors were important or very important - the FLUMPs performance, product features, overall quality of the product, Crisafulli’s brand reputation, and availability of after-sale service and support, and its comparisons of the Crisafulli FLUMPs to other brands. The customer rated these aspects of Crisafulli’s customer service as excellent – employee product knowledge, ease of purchasing and ordering, and ease of payment.
To request the name and contact information for this customer contact Crisafulli's Sales Manager, Maureen Lundman. Tel: 800-442-7867 email: maureenl@crisafulli.com
Maureen Lundman