Graphene Hollow Fiber MBR Membrane

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Product Profile

With low cost and excellent performance, MBR membranes made of organic materials such as PVDF and PTFE have the most extensive application in the water treatment industry. However, the most significant disadvantage of PVDF and PTFE MBR membranes is their relatively poor resistance to contamination compared to inorganic MBR membranes such as ceramic membranes. To solve this problem, Ecolan’s patented graphene-modified inner-supported PVDF graphene membranes have achieved industrial-scale mass production. In addition to the properties of ordinary membrane filaments, Ecolan^TM graphene MBR membrane is particularly prominent in flux and pollution resistance.

Product Features

High Flux and Excellent Filtration Performance

Compared with the surface defects such as cracks and uneven thickness in the microstructure of traditional membrane materials, graphene materials with single-layer or few-layer structures have a substantial specific surface area (large lamellar structure) and adsorption performance. It can graft many hydrophilic groups such as hydroxy-COOH, hydroxy-OH, or amino-NH2, effectively reducing the water flow resistance. As a result, the water flux of graphene membranes is 1.5~2.0 times higher than that of regular PVDF membranes.

Excellent Anti-Pollution Ability

The hydrophobicity of graphene material makes the surface of graphene membrane with certain hydrophobic groups, which can effectively reject hydrophilic pollutants during membrane operation, and the anti-pollution performance is 50% higher than ordinary membrane filaments.

Better Antioxidant Ability

Graphene is one of the strongest and thinnest materials, with good toughness. In addition, its oxidation resistance is more than 50% higher than traditional organic membranes, so that graphene oxide membranes can cope with various complex situations in actual industrial wastewater treatment.

Product Technical Parameters

Membrane material	Graphene + PVDF	Membrane type	Graphene hollow fiber MBR membrane sheet
Filament ID/OD	1.3/2.6mm	Average pore size	0.1μm
Tensile strength	≥200N	Effluent turbidity	<1NTU
Design flux	10~30L/M2.H	Working temperature	1~40°C
Max pH range	2~12	Maximum TMP	10~50 kPa
Aeration intensity	40~100Nm³/m².h	MLSS	4000~13000mg/L
Filtration cycle	20~120 minutes	Filtration mode	Submerged suction filtration (Out to In)
Product water flux	5~60L/M2.H	Filtration mode	Submerged suction filtration (Out to In)

Product Specification Selection

We have several options for standard membranes, and we can customize sizes per customers’ requests. Please note that the membrane is calculated by square meters for each layer of membrane filaments.

Model number	ELM-G1025	ELM-G1525	ELM-G2025
Active membrane area	10㎡	15㎡	20㎡
Membrane size	535 x 1025 x 30mm	535 x 1525 x 30mm	535 x 2025 x 30mm
Filtration accuracy	≤0.1μm

Scope of Applications

Considering the performance characteristics of graphene oxide membranes and different industrial wastewater treatment and reuse needs, coupling graphene oxide membranes with biological treatment devices to achieve deep treatment and reuse of industrial wastewater is the main application direction of graphene oxide membranes. The coupling process of biochemical-graphene oxide membrane can provide technical support for applying graphene oxide membrane in the deep purification of industrial wastewater and further promote the development of the standard discharge and reuse technology of refractory industrial wastewater.