AGM TDS

Summary

Product identification

• Model: AGM
• PVDF based hollow fiber membranes offer high mechanical strength and chemical resistance for a long lifetime.
• Modified hollow fiber membranes have high permeability and a nominal pore diameter of 30 nm.
• Hollow fiber membranes remove viruses, bacteria, and particles including colloids.

Membrane Specifications

• Material: Modified PVDF
• Membrane Type: Hollow Fiber UF
• Flow Direction: Outside to inside
• Fiber Outside/Inside Diameter: 1.4 / 0.8 mm
• Active Surface Area: 70 m²
• Nominal MWCO (Dextrane): ≤150,000 Dalton

Mechanical / Hydraulic

• Module Diameter: 250 mm
• Body and Cap Material: U-PVC
• Nozzles: DN50 - Victaulic
• Potting Material: Polyurethane
• Dimensions (mm):
  • A: 2220±1
  • B: 1915±1
  • C: 395±1
  • D: 200±1
• Weight: 60 kg

Operating limits

• Operation Modes: Dead End/Crossflow
• Temperature: 5-40 °C
• pH: 2-11
• Filtrate Flux @25°C*: 45-180 L/m²h
• Flow Capacity*: 3.15-12.60 m³/h
• Feed Water Inlet Pressure @ 25°C: 2-3 bar (Instant Max. 5 bar)
• Transmembrane Pressure (TMP): 0.4-2 bar
• Maximum Backwash Pressure: 2.5 bar
• Maximum Air Flowrate (Backwash): 20 Nm³/h

* Depend on feed water quality

Feed water

• Temperature: 25 °C (Max 40 °C)
• Particle Dimension: < 300 µm
• Turbidity: 50 NTU (Max 250 NTU)
• Oil and Grease: 0 % (Max 1 %)
• pH: 6-9
• Total Organic Carbon (TOC): < 10 mg/l (Max 30 mg/l)
• Total Suspended Solid (TSS): 50 mg/l (Max 80 mg/l)
• Chlorine: 0.4 mg/l (Instant Max. 150 mg/l)

Product water

• SDI: ≤2.5
• Turbidity*: ≤0.2 NTU

* Depend on feed water quality

Cleaning, Disinfection & Preservative Solution

Chemically Enhanced Backwash (CEB) Chemicals

• Sodium Hypochlorite (NaOCl): 1000 mg/l
• Sodium Hydroxide (NaOH): 500 mg/l
• Hydrochloric Acid (HCl): 1000 mg/l
• Citric Acid: 1-2 %

Clean-in-Place (CIP)

• Frequency: When current process TMP ≥ Initial TMP + 0.9 bar
• Operation Duration: 2 hours
• Chemical Cleaning Solutions (depend on pollutant):
  1. 0.1% NaOH + 0.2% NaOCl
  2. 0.2% HCl, 2% Citric Acid
• Cleaning Flowrate per Module: 1-2 m³/h

Preservative Solution

• Composed of water/glycerol/sodium metabisulfite.
• Cleaning involves slow draining with feed water for a minimum of 4 hours.
• The used feed water volume must be at least 12 m³.

Chemical Disinfection

• 100 ppm sodium hypochlorite (NaOCl) solution circulated for 10 minutes.
• Solution should soak inside the module for 1 hour.
• Module must be drained until the filtrate line is free from chlorine.

Process Steps

The datasheet outlines distinct steps for Production, Backwash, and Chemically Enhanced Backwash (CEB):

• Production: Involves a forward flush with feed water, followed by filtration.
• Backwash: Consists of draining the module, air scour, and then backwashing with permeate water in both top-to-bottom and bottom-to-top directions.
• CEB (Caustic/Chlor/Acid): A more intensive cleaning process. It starts with draining, air scour, and then backwashing with permeate water and chemicals (top-to-bottom and bottom-to-top). This is followed by a soak period, another drain, air scour, and final backwashes with permeate water before a forward flush with feed water.

Disclaimer: This summary is based on extracted text from a PDF datasheet. It may not include all figures, footnotes, or the latest revisions. For contractual data and complete specifications, always refer to the official OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet