Microfiltration (MF) Solid-Liquid Separation Systems use membrane filtration to separate suspended solids, fine particles, and biological contaminants from industrial liquid streams.
Operating as a standalone separation unit or integrated into larger industrial water treatment processes, system configurations are custom-engineered based on feed flow, solids loading, particle characteristics, water chemistry, and required permeate quality.
Key Product Specifications
The table below outlines standard industrial MF system parameters. Customized configurations are available based on project requirements.
|
Parameter |
Specification |
|
Filtration Process |
Microfiltration (MF) |
|
Membrane Material |
PVDF / PTFE / Ceramic |
|
Nominal Pore Size |
0.1 um - 0.4 um |
|
Membrane Configuration |
Hollow Fiber / Tubular / Flat Sheet |
|
Design Flow Rate |
5 m3/h - 500+ m3/h (Skid Mounted) |
|
Operating Pressure |
0.05 - 0.3 MPa (0.5 - 3.0 bar) |
|
Operating Temperature |
5 deg C - 45 deg C (Up to 80 deg C for Ceramic) |
|
Feed pH Range |
2 - 11 (Continuous) / 1 - 12 (CIP Cleaning) |
|
System Recovery |
85% - 95% (Depending on feed TSS) |
|
Main Wetted Materials |
UPVC / SS304 / SS316L / Duplex Steel |
|
Cleaning Method |
Air Scouring + Hydraulic Backwash + CIP |
|
Control System |
PLC Automation with Touchscreen HMI |
|
Installation |
Fully Enclosed Skid-Mounted Unit |
|
Power Supply |
380V - 480V / 3-Phase / 50-60Hz |
Separation Capabilities
MF is a physical separation process designed to eliminate particulate contaminants down to the sub-micron scale:
Suspended solids (TSS) and fine particulate matter
Turbidity-causing particles and silt
Biological solids, bacteria, and algae
Selected colloidal substances
Technology Comparison Matrix
Choosing the correct membrane technology depends on your target contaminant size:
|
Technology |
Pore Size |
Primary Target Contaminants |
|
Microfiltration (MF) |
0.1 - 1.0 um |
Suspended solids, particles, bacteria, turbidity |
|
Ultrafiltration (UF) |
0.01 - 0.1 um |
Macromolecules, viruses, proteins, fine colloids |
|
Nanofiltration (NF) |
0.001 - 0.01 um |
Multivalent ions, hardness, color, dissolved organics |
|
Reverse Osmosis (RO) |
< 0.001 um |
Monovalent salts, dissolved minerals, TDS |
Engineering & Manufacturing Standards
Skid Fabrication & Assembly
Heavy-duty carbon steel frame with protective coating or full SS304/SS316L construction.
Optimized piping layout ensuring minimal pressure drop and clear maintenance access.
Full pre-wiring and pre-piping to minimize site installation time.
Quality & Factory Acceptance Testing (FAT)
Hydrostatic pressure and leak testing for all headers and piping.
Electrical and instrument calibration verification.
Automated PLC control logic, safety interlock, and backwash cycle testing.
Compliance with ISO 9001 and CE standards.
Case Study: Industrial Wastewater Reuse
Industry: Textile & Dyeing Processing
Capacity: 1,200 m3/day
Challenge: High fluctuation of suspended solids (TSS > 250 mg/L) causing rapid fouling in downstream RO membranes.
Solution: Custom skid-mounted PVDF microfiltration system integrated with automated coagulant dosing pretreatment.
Result: Consistent permeate TSS < 1 mg/L and SDI < 2.5, extending downstream RO membrane cleaning intervals by 300%.
Technical Information Required for RFQ
To receive an accurate technical proposal and commercial quotation, please provide the following process parameters:
Process Data: Design flow rate (m3/h), operating hours per day, continuous vs. batch operation.
Feed Water Quality: TSS (mg/L), Turbidity (NTU), pH, Temperature, Oil & Grease content, COD loading.
Treatment Target: Required permeate quality, target recovery rate, downstream destination.
Site Conditions: Available installation area, power supply specifications, automation requirements.
FAQ
Q: What is an MF solid-liquid separation system?
A: An MF solid-liquid separation system uses microfiltration membranes to remove suspended solids, fine particles, and biological contaminants from liquid streams.
Q: What determines the capacity of an MF system?
A: System capacity depends on membrane surface area, net operating flux, feed solids concentration, water temperature, recovery rate, and required cleaning frequency.
Q: Is pretreatment required before an MF unit?
A: Pretreatment such as coarse screening, equalization, or DAF (Dissolved Air Flotation) is recommended if the feed stream contains large fibers, floating oils, or high solids loads that could cause mechanical damage.
Q: How is membrane fouling managed in industrial applications?
A: Fouling is controlled through optimal flux selection, periodic air scouring, automated hydraulic backwashing, and timed chemical cleaning (CIP) processes.
Q: Can an MF system be used upstream of Reverse Osmosis (RO)?
A: Yes. MF is widely used as a pretreatment process for RO to remove suspended particulates and reduce SDI (Silt Density Index), thereby protecting downstream membranes from physical fouling.
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