• Rajni Patel• Gopani Product Systems• 13th Sep. 2013

• 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

Global Facilities Support an Efficient Supply Chain And Provide Manufacturing Redundancy

Brings unique product solutions to high-solids filtration and separation applications, utilizing proprietary materials and membrane technology.

What is TMFTubular 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

Why the Porex TMF Membrane is Better

• 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 PVDF/PVDF option

Tubular Membrane Filter Module (TMF)

Membrane with nominal pore size of 0.05, 0.1, 0.5

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 43°C Temperature PE, up to 80°C Temperature PVDF tubes (continuous operating temperature)

• The Porex TMF Membrane is Unique and

Proprietary

• An efficient filter for high solid and liquid

separation

• Chemical and abrasion resistant membrane

• Low SDI (typically less than 0.5 NTU) allows for

further processing

• 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• Backwashable Unique membrane anchor points

allowed backwash • Minimal Construction Materials• Simple system design minimized the

construction cost.

Typical Microfiltration Treatment Process

Typical Applications and Results

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

Fluoride – Fl 10-500 <5.0

Solids - TSS 10 - 500 < 1.0

Typical Metal Finishing & Printed

Circuit Board Applications and Results

What Can TMF Membrane Achieve?

Tubular Micro Filtration (TMF)

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

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 - 10

Magnesium (mg/L)

100 - 600 1 - 10

Silica (mg/L) 10 - 150 2 - 20

Barium (mg/L) 1 – 40 < 1 - 5

Features Benefits

Superior Filtrate Quality – MF/UF barrier filtration - < 1.0 ppm SS and 0.1 ppm metals are typical

Can meet strict discharge regulations or feed directly to RO without additional treatment (reuse/recycle wastewater)

Can feed directly to RO without additional treatment

Reduces overall system capital cost and space requirements

No need for Polymer addition Saves money and time. Reduces overall sludge volume

Operates at broad temperature range No system upsets with temperature variations – saves operator time and reduces system downtime

Can easily handle 2-5% solids Produces less slurry and better filter press performance

Most durable membranes on the market

Best investment – holds up to abrasives, strong chemical cleaning, backpulse

Features Benefits

Automated system and easy On/Off operation

Saves operator time, more consistent operation and filtrate quality

Pre-treatment chemistry easily accomplished with readily available chemicals

No need for special or “exclusive” chemicals – saves money and allows choice in sourcing (OEM can supply)

Recirculation increases stoichiometric process of pretreatment chemistry

Less chemical addition, greater removal efficiency

Small footprint More space required

No additional post treatment Sand Filter/Multi Media Filter required

Membrane is a positive barrier reducing solids passage

Increased RO performance and decreased RO cleaning frequency

Porex TMF Hollow Fiber MF/UF

Strong durable membrane tubes Fiber can be fragile and break

Can be chemically cleaned with organic acids, caustic and strong oxidizers

Often limited to low concentrations of caustic and oxidizers

Can handle solids loadings up to 5% Limited to several hundred ppm solids

Can handle influent streams with aggressive abrasives

Abrasives can break fragile fibers requiring replacement of the module

Backpulse system does not create additional liquids requiring treatment

Backwash water must be treated or disposed of

High flux rates of several hundred lmh

Typical flux rate 50 lmh

Concentration Tank

Back Pulse Column

CirculationPump

Cleaning Tanks

CoatedSteel Frame

Membrane Modules

PVC Piping

• 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

TechnologyTubular 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)

Chemicals Used in MF treatment

Tubular Micro Filtration (TMF)

Typical pretreatment chemicals

Precipitants

◦ Calcium chloride – fluoride or phosphate removal,

◦ Magnesium chloride – silica removal

◦ Sodium Carbonate – calcium removal

pH adjustment

◦ Sulfuric acid (H2SO4), hydrochloric acid (HCl), sodium hydroxide (NaOH), lime (Ca(OH)2)

Oxidizing Agents◦ Hydrogen peroxide (H2O2), bleach

(NaOCl) Reducing Agents

◦ Sodium metabisulfite (Na2S2O5), sodium bisulfite (NaHSO3)

Water Flow rate: 120m3/h

Operation date: December 2008

Type of membrane: MME2S01613VP

Number of modules: 120

Flow rate: 450m3/h Operation date:

April. 2005 System recover ：

97％

• Flow rate: 50m3/h• Operation date: Aug.

2007• Application : High salt

surface water• System recover ： 97％

Location: China •Operation date: November 2011•Water Flow rate: 150m3/h (capacity 500m3/h)•Removal of copper for reclaim; recycle filtered water to RO•Type of membrane: MME3S01613VP•Number of modules: 144•Result: SDI less than 1. All filtrate recycled after RO treatment

For Inquiries, Contact:

info@gopani.com

RANGE OF PRODUCTS

SELF CLEANING FILTERSSS FILTER HOUSING

UPVC Cartridge & Bag Filter Housing FILTER CARTRIDGE

Thank You