APM TDS

Summary

Product Identification

• Model: APM
• Membrane Type: Hollow Fiber UF
• Flow Direction: Outside to inside

Membrane Specifications

• Material: Modified PVDF
• Fiber Outside/Inside Diameter: 1.4 mm / 0.8 mm
• Active Surface Area: 80 m²
• Nominal MWCO, Dextrane: ≤150,000 Dalton

Key characteristics:

• High mechanical strength and chemical resistance for long lifetime.
• High permeability and 30 nm nominal pore diameter.
• Removes viruses, bacteria, and particles including colloids.

Module Specifications

• Diameter: 250 mm
• Body and Cap Material: U-PVC
• Nozzles: DN50 - Victaulic
• Potting Material: Polyurethane
• Weight: 58 kg

Feed Water Specifications

• Temperature: 25 °C (Max 40 °C)
• Particle Dimension: < 300 µ
• Turbidity: 50 NTU (Max 250 NTU)
• Oil and Grease: 0 % (Max 1 %)
• pH: 6-9
• 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)

Operating Limits

• Operation Modes: Dead End / Crossflow
• Temperature: 5-40 °C
• pH: 2-11
• Filtrate Flux @25°C: 45-180 L/m²h (Dependent on feed water quality)
• Flow Capacity: 3.60-14.40 m³/h (Dependent on feed water quality)
• Feed Water Inlet Pressure @ 25°C: 2-3 bar (Instant Max. 5 bar)
• TMP: 0.4-2 bar

Product Water

• Filtrate Water SDI: ≤2.5
• Filtrate Water Turbidity: ≤0.2 NTU (Dependent on feed water quality)

Cleaning, Disinfection & Preservative Solution

Cleaning (Backwash)

• Backwash Pressure: Max. 2.5 bar
• Air Flowrate: Max. 20 Nm³/h

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: Current Process TMP (bar) ≥ Initial TMP (bar) + 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

Guidelines

• Avoid membrane deformation by not operating above pressure limits.
• At least half capacity must be produced in the first production.
• The module must be filled with storage/preservative solution during shut-down.

Cleaning of Preservative Solution

• Preservative solution is composed of water/glycerol/sodium metabisulfite.
• Drain slowly with feed water; minimum cleaning duration is 4 hours.
• Feed water specifications must be met; minimum used feed water volume is 14 m³.

Cleaning-Disinfection

• Chemically disinfect against biological contamination.
• Circulate 100 ppm sodium hypochlorite solution for 10 minutes.
• Solution should soak for 1 hour inside the module.
• Drain until the filtrate line is free from chlorine.
• A backwash procedure with treated/clean water at start-up is advised.

Process Steps

1. Production

• Forward Flush: Module rinsed with feed water.
• Filtration: Production performed.

2. Backwash

• Drain: Module drained.
• Air Scourge: Membranes scoured by air.
• Backwash-Bottom: Module rinsed with permeate water (flow top to bottom).
• Backwash-Top: Module rinsed with permeate water.

3. CEB (Caustic/Chlorine/Acid)

• Drain: Module drained.
• Air Scourge: Membranes scoured by air.
• Backwash-Bottom: Module rinsed with permeate water and chemical (flow top to bottom).
• Backwash-Top: Module rinsed with permeate water and chemical.
• Soak: All valves closed; membranes soaked.
• Drain: Module drained.
• Air Scourge: Membranes scoured by air.
• Backwash-Bottom: Module rinsed with permeate water (flow top to bottom).
• Backwash-Top: Module rinsed with permeate water.
• Forward Flush: Module rinsed with feed water.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet