20205_84_Hailfax_Membrane_replacement_-_Scope_of_Work.docx
DOCX document 23 KB Posted
- Attached to
- Nano Filtration Membranes
- Solicitation number
- 25-B-164LS
- Issued by
- Volusia County, Florida
About this file
This document is a Scope of Work for Volusia County Water Resources and Utilities, specifically for the Halifax Plantation Water Treatment Plant located in Ormond Beach, Florida. The county is soliciting an Invitation to Bid for eighty-four (84) new DOW FILMTEC NF90-400 nano-filtration membrane elements to replace existing membranes in their water treatment facility. The water treatment plant currently operates with a combined membrane softening capacity of 750,000 gallons per day (GPD), drawing raw water from seven Floridian Aquifer wells, and produces approximately 300,000 GPD of potable water.
The specified membranes must be first-use, high-quality elements with precise technical specifications, including 400 square feet of active area, a 34 mil spacer, and a 1.125" product water tube capable of producing 9,500 GPD with >97% stabilized MgSO4 rejection. The membranes will be delivered to Volusia County Water Resources and Utilities at 3151 East New York Avenue in Deland, Florida. The procurement process is focused exclusively on the DOW FILMTEC NF90-400 membrane elements, which must be manufactured through a fully automated process and have specific pH operational ranges for cleaning and continuous operation.
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Other files
| File | Type | Posted |
|---|---|---|
| Nano_Filtration_Membranes.pdf | ||
| Nano_Filtration_Membranes.pdf | ||
| Required_Types_and_Limits_of_Insurance,_25-B-164LS.pdf | ||
| Required_Types_and_Limits_of_Insurance,_25-B-164LS.pdf | ||
| Volusia_Human_Trafficking_Affidavit.pdf | ||
| Volusia_Human_Trafficking_Affidavit.pdf | ||
| Vendor_Contact_List.docx | DOCX document | |
| PRIME-SUB_FORM_for_Contractors_rev._01.15.2025_(lock_before_publishing).xls | XLS spreadsheet | |
| Vendor_Contact_List.docx | DOCX document | |
| PRIME-SUB_FORM_for_Contractors_rev._01.15.2025_(lock_before_publishing).xls | XLS spreadsheet | |
| 20205_84_Hailfax_Membrane_replacement_-_Scope_of_Work.docx | DOCX document |
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Text version
FACILITY INFORMATION/DESCRIPTION
The County of Volusia is soliciting this Invitation to Bid for materials related to equipment for Nano-Filtration Membrane replacement.
Volusia County Utilities Operations owns and operates the Halifax Plantation Water Treatment Plant located at 4000 Utility Drive, Ormond Beach, FL. This facility has a combined membrane softening capacity of 750,000 GPD and is currently producing around 300,000 GPD of potable water. The raw water supply is pumped from the Floridian Aquifer from seven wells, is pretreated with an antiscalant chemical and filtered through a series of three (1) micron cartridge canisters. The pre-conditioned feed water is repressurized before entering the existing membrane assemblies. Skid #1 has a design capacity of 250,000 GPD and Skid #2 has a design capacity of 500,000 GPD.
The permeate receives post treatment degasification utilizing a cascade tray aerator unit located above the 500,000 gallon ground storage tank. Sodium hydroxide is added for pH stabilization, and a corrosion inhibitor chemical is added for lead/copper control.
The by-product concentrate is blended with water drawn from the Ribbon Lake and is discharged to an irrigation/evaporation/percolation storm water pond.
MATERIAL SPECIFICATIONS
The selected Vendor shall furnish the specified membranes for the Nano-filtration membrane trains in accordance with all specifications, quotations, and requirements as set forth within this Invitation to Bid.
All materials and equipment shall be of "first use", free of any breaks, dents, wear, corrosion, poor finish, or any other defect.
This bid is for the purchase of Eighty-four (84) new membrane elements.
Only DOW FILMTEC NF90-400 membrane elements are acceptable.
Membrane description: A polyamide thin-film composite Nano-filtration membrane element with 400 square feet of active area, a 34 mil spacer and a 1.125” product water tube capable of producing 9,500 GPD, >97% stabilized MgSO4 rejection and 7,500 GPD, 85-95% stabilized NaCL salt rejection. The element shall be made by a fully automated manufacturing process and have a cleaning pH range of 1-13 S.U. and a continuous operation pH range of 3-10 S.U.
The membranes supplied shall include interconnectors and brine seals.
SCOPE OF WORK
Selected Vendor will supply Eighty-four (84) specified membranes to be delivered to:
Volusia County Water Resources and Utilities
| 3151 East New York Avenue |
| Deland FL 32724 |
File details come from the government source that posted it. Updated .