Supply of XF75, 0.72mm Polyethersulfone (PES) UF Membranes for Brine Water Treatment Plant tenders at North Mara Gold Mine

Qualification Criteria

1. Reference No.: NM004/2025
   Description of Work: Supply of 96 XF75 Ultrafiltration Membranes
   Brand: Pentair
   Specifications:
   • Polymeric hollow fiber membrane filtration
   • Hydrophilic composed of a blend of Poly-Vinyl-Pyrrolidone (PVP) and Poly-Ether-Sulfone (PES)
   • Very high fouling resistance
   • Structure: Asymmetric/Microporous
   • Membrane surface area: Min 75 m²
   • Nominal pore size: 100 to 150 kDa MWCO on daxtrane with 20 nm pore size
   • Lumen fiber inner diameter: 0.72 mm
   • Filtration method: Inside-out filtration
   • Dead end with regular backwash and chemically enhanced backwash
   • Membrane fiber geometry: Single concentric fiber
   • Operating specifications:
     • Max Transmembrane pressure: 14.5 PSI (Filtration TMP)
     • Max Backflush pressure: 29 PSI (Backwash TMP)
     • Temperature range: 0-40°C
   • Cleaning chemical resistance:
     • Sodium Hydroxide: pH < 13
     • Sodium Hypochlorite: < 500 ppm
     • Acidic pH: >1
   • Material of construction:
     • Housing: PVC white
     • Flow distributor: PVC
     • Potting material: PU resin
     • Membrane: PES/PVP

Qualification Requirements:
i. Submit Company Profile, Specifications, and project profiles over the last three years for assessment of the membrane supplied per month for the last 24 months.
ii. Confirm standard lead time for the items.
iii. Confirm the incoterms.
iv. Share the manufacturing QA/QC document.
v. Submit technical data sheets.
vi. Warranty & Guarantee period to be specified as per Manufacturer.
vii. Provide references with their respective contact details.
viii. Provide the safety, health, and environmental ISO compliance certificates.
ix. Provide proof of Local Content Regulations compliance.
x. Provide proof of After-sale Technical Support.

Submission of Proposals:
If your company meets the qualification criteria, submit your proposal alongside all relevant documentation to nm.proposal@barrick.com. Applicants must quote the tender description(s) and the respective package reference no.(s) in the subject line of the email. Queries should also be directed to nm.proposal@barrick.com.

NB: The Company reserves the right to invite any other supplier(s) who did not submit a proposal through this advertisement. If you do not hear from us in 21 days after the deadline date, please consider your submission unsuccessful.

Key Dates:

• Last Date to Submit Proposals: 06 February 2025