GFF(Gravity Flow Fiber) Filter

Product DescriptionA filter layer is formed through pressurizing the non-braided fiber bundles on the surface of the rectangular type perforated plate. Then the filtration is started with the gravity force less than about 30centimeters of water head.The backwashing procedure is beginning when the water level is reached at given height. The backwashing is performed by relaxing the fiber bundles and sparging the backwash air to form intensive upward stream which can give a strong shear force to move the fibers.When more than two of this kind filters are equipped in a same basin the backwash pumps are not need, since the backwash water is supplied automatically by upward stream coming from neighbor filters. So, it was called PUMPLESS FILTER sometimes. Product Feature  No filtration pumps Pressurizing the fiber bundles on the strainer up to 0.5~2cm of the thickness and filtrating the water by gravity with 30cm of the water head No pumps for the backwash The water level is raised when supplying the backwash air and then the filtrate as the backwash water automatically is supplied by the overflow.(Multiple filter only) Minimizing the equipment size for the filtration The filtration area is larger than cylindrical or disc type filters since its shape is rectangular. High quality of the filtrate Non braid type movable fiber filters thicker than the braid type fixed fiber filters have the depths filtration effects. High efficiency ofthe backwash Salts adhesion and bio film propagation are prevented from the intensive movable backwash. Possible maintenance works without stopping the filtration Preclude backmixing of the raw water by operating the back pressure springs when single filter was removed for the maintenance.(Option) Product Specification / Models?The data given by following table may be changed according to the row water quality (SS concentration, particle size distribution, turbidity, viscisity, etc) and the filtrate quality required, and may be suggested without advance notice to enhance the performance.?Even though the size of particles is under 5?, they can be removed by higher pressuring the fiber bundles, using more fine fibers, reducing  Model Capacity(?/hr) Number of Unit Filter Size(WxFH/HxD) Filter Module(L(m)xea) 1000N 41.7 1 1525x3600/4500 x 250 3.6 x 170 2000N 83.3 2 1525x3600/4500 x 500 3.6 x 340 4000N 166.7 4 1525x3600/4500 x 1000 3.6 x 680 6000N 250.0 6 1525x3600/4500 x 1500 3.6 x 1020 8000N 333.3 8 1525x3600/4500 x 2000 3.6 x 1360 10000N 416.7 10 1525x3600/4500 x 2500 3.6 x 1700 15000N 625.0 15 1525x3600/4500 x 3750 3.6 x 2550 20000N 833.3 20 1525x3600/4500 x 5000 3.6 x 3400 •Unit Filter Size : 1525w x 3600FH x 250D•Unit Filter Capacity : 1,000~1,500?/d(4.0~6.0?/?/hr) •One unit filter is added per every 1,000?/d. •Unit filter smaller than above can be supplied by the customer order Application?Discharge with enhanced quality of effluent as the third treatment? Reuse the effluent directly by high removal turbidity and T-P? Pre-treat STP effluent to reuse by RO systems? Prolong the life time of recirculation water like cooling tower, swimming fool, aquarium and etc. ? Produce drinking water from high turbid water directly. ? Produce the deionized water with demineralization systems(Ion Exchange, RO) ? Produce the desalinated water from the sea water with SWRO systems