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Micro-Filtration (MF) |
DESCRIPTION
Microfiltration is a water and suspended solids filtration
technology that can be operated in two different modes. One is the
so called crossflow separation. In crossflow separation, a fluid
stream runs parallel to a membrane and a pressure differential
across the membrane is applied. This is the driving force to pass
fluid through the membrane, while the rejected
flowing across the membrane, partially cleaning it. A certain
percentage of the reject is bled off as slurry.
The other form of filtration is called dead-end filtration or
perpendicular filtration. In dead-end filtration, all of the fluid
passes through the membrane, and all of the particles that cannot
pass through the pores of the membrane are rejected.
APPLICATIONS
Crossflow
microfiltration is used in a number of applications, either as a
prefiltration step, as a process solution recovery operation and as
a final filtration process of wastewater following a clarifier.
Microfiltration is handling particle sizes within a range of 5 to
0.05 microns. Microfiltration removes both mechanically and
chemically emulsified oils, fatty acids, particulates, clay and
bacteria.
Dead end Microfiltration is commonly used to separate particulate
matter from process water in one step. Typical system designs are
cartridge or disc filters with Microfiltration pore sizes.
SYSTEM COMPONENTS
▪ Feed
pump
▪ Membrane modules
▪ Module pressure vessel
▪ Feed and discharge valves and piping
▪ Feed or process tank
▪ Cleaning in place (CIP)
▪ System intrumentation and control
▪ Electrical control unit
OPTIONS
Exergy offers many Microfiltration
options as well as custom systems to meet special requirements.
Unique plant operating conditions and applications can be
incorporated into the standard system control software, which can be
modified easily as production requirement change. The ARO system can
be integrated with automated production lines.
Exergy offers a wide spectrum of membrane material, including
organic and inorganic membranes.
▪
ORGANIC MEMBRANES
▪ Polypropylene (PP)
▪ Polysulfone (PSO)
▪ Polyvinylidene fluoride (PVDF)
▪ INORGANIC MEMBRANES
▪ Ceramic
▪ Carbon
▪ MODULE DESIGNS
▪ Spiral wound
▪ Tubular
▪ Hollow fiber
▪ Plate-and-frame
▪ SYSTEM-AUTOMATION
▪ In-line control options
▪ Automatic intrumentation and control
(I&C) including PC controlled operator interface unit (OIU)
options
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