Doug Frick POREX - RO Reject Side-Stream Filtration Using

Transcription

POREX FILTRATION
Solutions Through Material ScienceSM
Porex Corporation
World leader in porous
polymer technology
 Working in partnership
with world leaders in
global markets
 Innovating with a
Materials Science and
Engineering focus
 Providing structural
porous solutions to real
world problems
Porex Corporation
 Develop and Manufacture Porous
Plastic Components
GROUP PROFILE
 Global Manufacturing Capability
 Atlanta – 1 sites
 Advanced Membrane Formulation
and Deposition Technology
 Germany – 2 sites
 Complete State-of-the-Art Tooling
 Scotland
 Advanced Polymer Laboratory
 Malaysia
 Global Capabilities
 China – 2 sites
 High Volume Technologies
 600,000 square feet globally
 Proprietary, Cost Effective
Manufacturing Capability
 725 employees worldwide
Porex Filtration
Radial Cartridge
Cutting Edge Capability
Materials Science
Tubular Membrane
•Polymers/particles
•Fibers
•Membranes/Coatings
•Additives
Tubes and
Sheets
PTFE Cartridges
Polymer Materials
Porous Structure
• Polyethylene (PE)
• Polypropylene (PP)
• Polyvinylidene fluoride (PVDF)
• Polytetrafluoroethylene (PTFE)
• Ethyl Vinyl Acetate (EVA)
• Nylon (N6)
• Polyethersulfone (PES)
• Polycarbonate (PC)
• Range of other thermoplastics
POREX Radial Cartridge Filter
POREX Radial Cartridge Filter is a
patented porous plastic cartridge that
offers high flow capacity and long service
life. The single layer, one-piece finished
structure is back-washable and cleanable.
FILTRATION EFFICIENCY
5 micron rated filter Initial Retention Efficiency results per ASTM 79588, based on a single pass using a 2.65” diameter cartridge 10” long,
at a flow rate of 3gpm/ft2 of water with ISO Test Dust and Polystyrene
beads.
Particle Retention
120.00
100.00
Retention, %
80.00
60.00
PSL Beads
AC Fine
40.00
20.00
0.00
0
2
4
6
8
10
12
14
Channel, micron
Porex Filtration
Sheets and Tubes
Sintered porous plastic is molded into
sheets and tubes of various
dimensions for assorted filtration
applications including filter
presses, dewatering pads, dust
collection, etc.
Tubular Micro Filtration (TMF)
Porex TMF Module
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High Flux
Typical operation flux rate 300-500lmh
High solid concentration
solids level requirements up to 5% (by
weight)
Excellent Chemical Resistance
pH 1-14
Back-washable at large pressures
up to 20 psi easily
Minimal Pretreatment required
Extremely Durable construction
What is TMF
•
Microfiltration (MF) is a low pressure
(0.7 – 7 bar, 10-100 psig) separation
process for separation of solids from
aqueous solutions by means of a
membrane.
•
This “crossflow” process is carried out
by having a process solution flow
along a membrane surface under
pressure.
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Retained particulate matter leaves
with the flowing process stream and
does not accumulate on the
membrane surface
What Do Microfilters Filter?
Microfiltration System/Processes
•
The Porex TMF Membrane modules contain
20 year old applications combined with cutting
edge innovation and materials
•
The strongest, most durable and chemically
cleanable membrane product available today
•
All PVDF construction can replace many
ceramic membrane products
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Extremely Chemical and abrasion resistant
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Tight membrane pore size control provides
outstanding filtrate quality, SDI (typically less
than 1.0 NTU)
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Large diameter allows very high solids loading
without pretreatment restraints
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More forgiving than hollow fiber
Materials of Construction

Membrane with nominal pore size of
0.05, 0.1, 0.5, (0.01 soon)

PVDF membrane material
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HDPE or PVDF substrate material

Tubular configuration with 1” or 1/2”
diameter

Housing materials of PVC, CPVC, SS,
all PVDF, other options on request.

Up to 60 C Temperature PE, up to
100 C Temperature PVDF tubes
Membrane/Substrate
• Unique abrasion resistant topography
• PVDF membrane with PE or PVDF sintered substrate
• Membrane is in the pores of the substrate
• Anchored into substrate by full depth entanglement
• Also chemically bonded in the all PVDF option
Typical Microfiltration Wastewater
Treatment Process
Typical TMF System
PVC Piping
Back Pulse Column
Membrane Modules
Concentration Tank
Coated
Steel Frame
Cleaning Tanks
Circulation
Pump
Backwash
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Backpluse
• Often PLC controlled
• Typically engaged every 5 – 30
minutes (20 is standard).
• Used to prevent excessive
solids accumulation on
membrane surface
• Filtrate is forced back through
membranes using air pressure
• Air must not be allowed to
reach membranes
• Photo of Backpulse
column
Porex TMF Sys
Victaulic clamp
Metal clamp
Membrane module
tem
Filtrate tubing
U-bend
Technology
Typical Membrane Cleaning
Chemicals
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Acid: 5-10% H2SO4 or 5-10% HCl solution
(removal of metals)
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Alkaline: 3-5% NaOH solution (removal of
silica, some organics)
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Oxidizers: Acidic solution (mixture of 5-10%
H2SO4 / 3-5% H2O2) Alkaline solution (mixture
of 5-15% NaOCl / 1-3% NaOH) (removal of
organics)
Elements Removed or Reduced
with Membrane Microfiltration
 Regulated heavy metals (Cd, Cu, Cr,
Ni, Pb, Zn.)
 Arsenic (As)
 Fluoride (F) removal
 Removal of specific contaminants such
as Ba, Mo, Fe, Al, Sn, Ra, phosphates
(PO4), phosphorus (P), glass particles
(Wafer and glass grinding)
 Hardness removal (Ca, Mg)
 Removal of dyes, pigments
 Reduction of SO4 BOD5, COD, TOC
 Pre treat for RO and increased
recovery of RO with chemical softening
 Removal of oil emulsion from water
What Can TMF Membrane Achieve?
Typical Metal Finishing and Printed
Circuit Board Applications
Contaminant
Influent (mg/L)
Membrane Filtrate
(mg/L)
Cadmium - Cd
10 - 30
< 0.05
Chrome - Cr
10 - 50
< 0.1
Copper - Cu
20 - 130
< 0.1
Iron - Fe
5 - 100
< 0.1
Lead - Pb
1 - 15
< 0.1
Nickel - Ni
5 - 75
< 0.1
Zinc - Zn
5 - 130
< 0.1
Solids - TSS
10 - 500
< 1.0
What Can TMF Membrane Achieve?
Water Softening Applications , Cooling Tower Blowdown,
Industrial Process Streams, Petroleum Well Water
Parameter
Influent
Membrane Filtrate
6.5 - 7.5
10.5 - 11.0
7,000 - 20,000
3,000 - 15,000
Calcium (mg/L)
200 - 900
1 - 40
Magnesium
(mg/L)
100 - 600
1 - 40
Silica (mg/L)
10 - 150
2 - 20
1 - 40
<1-5
pH (s.u.)
Conductivity
(μS/cm)
Barium (mg/L)
TMF LABORATORY PILOT
UNIT
Laboratory Testing
• Pilot Testing (laboratory)
– Conducted in 2 tube pilot unit using
chemistry determined in screening
test
– Determination of filtration flow for
sizing of the system
– Confirmation of effluent quality
– Determine if foulants can be cleaned
from membrane
– 100-500 gallons of sample required
– Testing duration is 2-5 days
• Sample is recirculated through
system
– Most systems can be designed
based on this test.
Field Pilot Testing
• Pilot Testing
– Conducted at customers site
– Testing is conducted using
chemistry determined in lab tests
– Various size pilot units can be used
– all scale up well
– Confirmation of effluent quality and
flux rates
– Advantages
• Several run and clean cycles
• Variation in wastewater
characteristics
– Testing duration is 2-8 weeks or
longer if necessary
Power Generation
Process Water Pre
Treatment
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Water Flow rate: 120m3/h
Operation date: December 2008
Application: Pre treatment of
surface water, well water and
recycling of cooling tower water
TMF as the pretreatment to RO
including RO reject recycle with
95%+ recovery, remainder to
crystalizer for ZLD
Type of membrane:
MME3S01613VP
Number of modules: 120
Electroplating
Wastewater
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Water Flow rate: 200gpm
TMF as the pretreatment of
discharge to remove the
copper, silver, and other heavy
metals.
Type of membrane:
MME3S01610VP
Printed Circuit Board
Wastewater
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Operation date: December
2008
Application: PCB wastewater
Removal of copper, other
metals and COD, BOD as pretreat to RO
Type of membrane:
MME3S01613VP
Oil/Water Separation
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Water Flow rate: 2500 lph
Operation date: Nov 2011
Application: Oily wastewater
TMF as the pretreatment to
concentrate the carrier oil/dye.
Permeate recycled via GAC
and Ion Exchange filters
Type of membrane:
MMV2005601VP
expandable to 156
Battery Recycling Plant
Waste water
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Operation date: January 2011
Type of membrane:
MME3S01613VP
To remove heavy metals from
battery recycling waste water ,
permit levels Cd<0.05, Ni<2.0
Permeate below measurable
limits for Cd and Pd, and
0.436ppm for Ni.
Hotel laundry
wastewater recovery
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Flow rate: 20 m3/hr
Type of membrane:
MME3S01613VP
Operation date: Sept. 2011
Application : Wastewater
recovery of laundry waste water
including reduction of, COD,
BOD iron and detergents.
Tequila production
vinaza (stillage) water
recovery
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Flow rate: Pilot system (3gpm)
Operation date: Feb. 2011
Application : Wastewater
recovery. Pre RO solids
removal
Cooling tower blow
down
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Flow rate: 450m3/h
Operation date: April. 2005
Application : Cooling tower
blow-down
TMF as pretreatment of RO
System recover: 97％
High salt surface water
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Flow rate: 50m3/h
Operation date: Aug. 2007
Application : High salt surface
water
TMF as pretreatment of RO
System recover：97％
Wastewater reuse for grinding
and CMP wastewater reuse
Abrasive Polishing and CMP
Waste
Summery of TMF
 Proven technology for variety of
applications
 Waste Water Processing
 Heavy Metals
 High Solids Pre RO
 Increased RO Recovery w LS
 CMP/Grinding Water Recycle
 Oil Water Separation
 Landfill Leachate Processing
 Laundry Water Recycle
 Food and Beverage water and
process
 FGD water recycling
 Pulp and Paper
 Chemical Processing
 Many Others
 Chemically Inert to most cleaning and
process chemicals

Doug Frick POREX - RO Reject Side-Stream Filtration Using

Transcription

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