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Solutions Through Material ScienceSM

FILTRATION POREX


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

World leader in porous polymer technology

Porex Corporation


Develop and Manufacture Porous Plastic Components

Advanced Membrane Formulation and Deposition Technology

Complete State-of-the-Art Tooling Advanced Polymer Laboratory Global Capabilities High Volume Technologies Proprietary, Cost Effective

Manufacturing Capability

Global Manufacturing Capability Atlanta – 1 sites Germany – 2 sites

Scotland Malaysia

China – 2 sites 600,000 square feet globally 725 employees worldwide

GROUP PROFILE Porex Corporation


Tubes and Sheets

Tubular Membrane

PTFE Cartridges

Radial Cartridge

Porex Filtration Cutting Edge Capability

Materials Science

•Polymers/particles •Fibers •Membranes/Coatings •Additives


Polymer Materials

• Polyethylene (PE) • Polypropylene (PP) • Polyvinylidene fluoride (PVDF) • Polytetrafluoroethylene (PTFE) • Ethyl Vinyl Acetate (EVA) • Nylon (N6) • Polyethersulfone (PES) • Polycarbonate (PC) • Range of other thermoplastics

Porous Structure


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.

POREX Radial Cartridge Filter


0.00

20.00

40.00

60.00

80.00

100.00

120.00

0 2 4 6 8 10 12 14

Ret

entio

n, %

Channel, micron

Particle Retention

PSL Beads

AC Fine

FILTRATION EFFICIENCY 5 micron rated filter Initial Retention Efficiency results per ASTM 795-88, 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.


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.

Porex Filtration


Porex TMF Module Tubular Micro Filtration (TMF)

• 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 Tubular Micro Filtration (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.

• Retained particulate matter leaves with the flowing process stream and does not accumulate on the membrane surface


What Do Microfilters Filter? Tubular Micro Filtration (TMF)


Tubular Micro Filtration (TMF)

• 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

• Extremely Chemical and abrasion resistant

• Tight membrane pore size control provides

outstanding filtrate quality, SDI (typically less

than 1.0 NTU)

• Large diameter allows very high solids loading

without pretreatment restraints

• More forgiving than hollow fiber

Microfiltration System/Processes



Membrane with nominal pore size of 0.05, 0.1, 0.5, (0.01 soon)

PVDF membrane material

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

Materials of Construction


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 Tubular Micro Filtration (TMF)


Typical TMF System

Concentration Tank

Back Pulse Column

Circulation Pump

Cleaning Tanks

Coated Steel Frame

Membrane Modules

PVC Piping


• Photo of Backpulse column

Backwash

• 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


Porex TMF Sys tem

Membrane module Filtrate tubing Metal clamp Victaulic clamp

U-bend


Technology Tubular Micro Filtration (TMF)

Typical Membrane Cleaning Chemicals

• Acid: 5-10% H2SO4 or 5-10% HCl solution

(removal of metals)

• Alkaline: 3-5% NaOH solution (removal of

silica, some organics)

• 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? Tubular Micro Filtration (TMF)

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

Typical Metal Finishing and Printed Circuit Board Applications


What Can TMF Membrane Achieve? Tubular Micro Filtration (TMF)

Water Softening Applications , Cooling Tower Blowdown, Industrial Process Streams, Petroleum Well Water

Parameter Influent Membrane Filtrate

pH (s.u.) 6.5 - 7.5 10.5 - 11.0

Conductivity (μS/cm)

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

Barium (mg/L) 1 - 40 < 1 - 5


TMF LABORATORY PILOT UNIT


• 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.

Laboratory 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

Field Pilot Testing


• 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

Power Generation Process Water Pre

Treatment


• Water Flow rate: 200gpm • TMF as the pretreatment of

discharge to remove the copper, silver, and other heavy metals.



Electroplating Wastewater


• Water Flow rate: 120m3/h • Operation date: December

2008 • Application: PCB wastewater • Removal of copper, other

metals and COD, BOD as pre-treat to RO



Printed Circuit Board Wastewater


• 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

• Number of modules: 120 expandable to 156

Oil/Water Separation


• Water Flow rate: 16m3/h • Operation date: January 2011 • Type of membrane:

MME3S01613VP • Number of modules: 18 • 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.

Battery Recycling Plant Waste water


Hotel laundry wastewater recovery

• Flow rate: 20 m3/hr • Type of membrane:

MME3S01613VP • Number of modules: 24 • 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 • Flow rate: Pilot system (3gpm) • Operation date: Feb. 2011 • Application : Wastewater

recovery. Pre RO solids removal


Cooling tower blow down

• 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

• Flow rate: 50m3/h • Operation date: Aug. 2007 • Application : High salt surface

water • TMF as pretreatment of RO • System recover：97％


Abrasive Polishing and CMP Waste


Wastewater reuse for grinding and CMP wastewater reuse


Summery of TMF Tubular Micro Filtration (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

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