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Airsweep

Animation Pause Reverse Osmosis


Hydraulic backwash of membrane by reversing water flow through the permeate tube


Anti-telescoping support structure


Patented Permaseal for both forward and reverse flows prevents separation of membrane envelope during backwash


Pneumatic backwash capability (air sweep) for enhanced cleaning



Microfiltration

The GrahamTek Fine and Ultra Fine Filtration Products are available in both the Series 203 (8-inch) and Series 403 (16-inch) ranges.
These ranges incorporate the MemspinPlus modular skid-mounted pressure vessel option.

Microfiltration Skid

Application specific staged filtration options may be selected with membrane cut off ranging from 20 micron to 0.2 micron depending on the raw feed constituents and final product water quality requirements.
In a cascade filtration configuration, the range provides particulate removal (MF+) molecular weight cut off (UF+) and color filtration options.


MemspinPlus
GrahamTek Memspin Range provides Fine & Ultra Fine Filtration for the removal of finely dispersed suspended and sub-micron particles without the use of any foreign chemicals. Memspin systems may be configured as pre-filtration or Fine Filtration processes for Reverse Osmosis Desalination for the treatment of high- and low- turbidity Sea, Brackish and Hard Waters including Industrial Waste, Commercially Recycled Waters and Municipal Waste Waters.
The unique flow reversal feature together with a pneumatically enhanced hydraulic backwash (reverse fed) enables application specific alternating cross-flow and dead end operation.

Data graphs on the GrahamTek Memspin taken from our plant at PSA in Singapore. Dead end filtration method used with product water as rinse source.


 Power consumption             Flux                  Turbidity

 

     Pressure                   SDI

 

Absolute pure water

MF8 Display Demonstration at IDA 2005 in Singapore

 

 

Modular design

The MemspinPlus is like all GrahamTek products part of the modular design concept, which makes it flexible and adaptive to changing feedwater characteristics and flow rate. 

 


 

Inventor with MF