HYDRAcap® MAX is a technology using ultrafiltration PVDF TIPS hollow fibers (0.08-micron pore size). The pressurized hollow fiber modules are suitable for a wide range of applications as either final treatment or as pretreatment to reverse osmosis (RO) and nanofiltration (NF).
Industrial or municipal waste water
Sea water
Surface water and ground water
HYDRAcap® MAX offers combined benefits of high recovery and low footprint due to its optimized membrane area and novel cleaning regimes. High strength PVDF membrane minimizes fiber breakage rate and ensures consistently superior filtrate quality, this enables RO and NF systems to be operated at higher fluxes while maintaining longer intervals between cleanings.
No backwash pump is required for HYDRAcap® MAX systems. Physical cleaning is performed with air scouring thanks to a unique and patented air diffuser design.
Along with these modules offerings, Hydranautics provides access to a novel web simulator to design HYDRAcap® MAX systems in a simple and effective way. The simulator is currently being used by thousands of engineers to design and understand the whole ultrafiltration unit. Contact Hydranautics for more information or to get access to the program.
HYDRA cube system: A pre-engineered and standardized rack system where all modules’ connections are integrated within a single header piece. This system allows HYDRAcap® MAX modules to operate in robust conditions and in an optimized footprint environment.
Performance
Filtrate Flow: 7.5 –24.4 gpm (1.7 – 5.5 m3/h)
Filtrate Turbidity: ≤ 0.10 NTU
Bacteria removal: ≥ 4 log
Type
Configuration: Capillary Ultrafiltration Module
Membrane Polymer: TIPS PVDF
Nominal Membrane Area: 560 ft2 (52 m2)
Fiber Dimensions: ID 0.024” (0.6 mm), OD 0.047” (1.2 mm)
Pore size: 0.08 micron
Application Data
Typical Filtrate Flux Range: 20 – 65 gfd (34 – 110 l/m2/h)
Maximum Applied Feed Pressure: 73 psig (5.0 bar)3
Maximum Transmembrane Pressure 30 psig (2.0 bar)
Instantaneous Chlorine Tolerance: 5000 ppm4
Maximum Chlorine Exposure: 1,000,000 ppm-hrs
Maximum Feed Turbidity: 300 NTU5
Maximum Operating Temperature: 104 F (40 C)
pH Operating Range: 2.0 – 11.0
Cleaning pH Range: 1.0 – 13.0
Operating Mode: Outside to Inside Filtration
Dead End or Cross flow mode
Typical Process Conditions
Air Scour Rate: 7.3 – 9.1 acfm (12.3 – 15.4 m3/h)
Air Scour Duration: 120 – 240 seconds
Air Scour Frequency: Once every 20 – 60 minutes
Maintenance Clean Frequency: 1 – 3 times per day
Maintenance Clean Duration: 20 – 30 minutes
Disinfection Chemicals: NaOCl, ClO2 or NH2Cl
Cleaning Chemicals: NaOH, HCl, H2SO4 or Citric Acid
